Vb net find string in text file. ReadAllLines() method returns an array of strings).

Vb net find string in text file abc" or ". net so my syntax may be a little off but this will give you idea I'm actually working on program where I want to manually copy and paste a webpage source code and the program is supposed to find a certain part of the source code and cut it out from the rest of the string. Cast(Of String)() Where item. SelectedItem = hits. I could do this with InStr and Microsoft. Text) Dim cnt As Integer = 0 Dim isStop As Boolean = False While Not isStop Dim i Later you are trying to find the search string, but only at the start of the combined line! ioLines. Text, True, FileIO. One way to resolve this is to change your Dim sFile As String = "D:\File. Search = InputBox("Enter text to be found:") ' Find string in text. NET string equals ". StreamWriter Dim myStr As String myStreamReaderL1 = System. Because I get this file a lot I need a script for it. Process. Below is what I've been using. txt is a resource in my application, however the application doesn't run because it can't find data5. txt file with VBscript. ReadAllLines (documentation)Get the text of the second file by using IO. Spreadsheet. Split(p1, StringSplitOptions Replace a certain word/string in a . txt") Dim bytesRead As Integer Dim buffer = New Byte(chunkSize - 1) {} bytesRead = I need to write in an existing text file at 30th position. A code snippet is the following Dim path As String = "c:\\temp\\test. NET. Use Linq to select the appropriate description. Contains("Failed to initialise") = True Then MsgBox("yes") Else MsgBox("no") End if Next I Also found this code, but don't know how I can use this to get what I want. Here is some VBA code in case somebody is looking for it: Private Function CountCharacter(WhatToSearch As String, SearchForThis As String) As Long Dim NumberOfHits As Long Dim i As Long For i = 1 To Len(WhatToSearch) If Mid(WhatToSearch, i, 1) = I have a text file called "Games. txt would need a wild card at the beginning and end of the line) then send an email. Public Function GetPage(ByVal PageURL As String) As String Dim S As String = "" Try Dim Request As HttpWebRequest = WebRequest. Dim TempFile As This Function reads in a text file and places each line in the file in a String array. I've managed to get the random number to work, but I have no idea how to read a specific line from the . txt contains any line in file2. MyDocuments) Dim FILE_NAME As String = path & "\mydebug. Close() End Try vb. ReadLine() Is Nothing Then Throw New Now let's assume you downloaded the text file to the C: directory. clear() htmlDocument. Follow asked Oct 22, 2014 at 9:24. Dim index As Integer = 0 Do ' Find occurrences of the search word, incrementing ' the start index. Exists(<path to be renamed>). I am currently trying to create a vocabulary testing program. txt" Dim aLines As String() = System. Text & ";" & txtEmail. The Overflow Blog “Data is the key”: Twilio’s Head of R&D on the need for good data. Clear() For Each file As String In files ListBox1. Split(",") file2. NET Dose anybody know how I can tally instances of a particular text occurrence within a txt file using VB. One way to get the line you want is something like this: Public Function GetTheLine() As String 'A using block ensures proper disposal of the streamreader object for you Using SR As New System. There are a number of ways of achieving this: Split the string into words and then search those words for instances. Substring(data. I'm trying to add text in between "G4 K900" and "N10 G54". Dec 01, 2011 06:05:00 PM Dec 01, 2011 10:05:00 PM 240 80. For example: Function ReadLineWithNumberFrom(filePath As String, ByVal lineNumber As Integer) As String Using file As New StreamReader(filePath) ' Skip all preceding lines: ' For i As Integer = 1 To lineNumber - 1 If file. Read a text file line by line - VB. Drawing Imports BitMiracle. Replace Text in a TextFile c#. txt" Screenshot of Excel search with GemBox. RegularExpressions. To correctly check it you must do Directory. StreamReader Dim myStream As System. OpenRead("namefile. txt" Dim readFile As String = "D:\test. Public Function FillFromFile(ByVal vFileName As String, ByVal vGroupName As String) As List(Of String) ' open the file ' read the entire file into memory ' find the starting group name Dim blnFoundHeading As Boolean = False Dim lstValues As New List(Of String) Dim lines() As String = IO. net; string; or ask your own question. Private Sub Button1_Click(sender As System. ReadAll The easiest, but least efficient, is to split the string into lines and get one of them: Dim second As String = text. Ask Question Asked 8 years, 7 months ago. NET program. Modified 9 years, 5 months ago. IO Public Class frmTest Dim l1 As New List(Of String) Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3. txt" VB file path string: "c:\foo\bar. Substring(intIndex, 1)) Then InvalidName = 1 End If Next For intIndex vb. Items. txt" Dim text As String = TextBox1. NET and I am having issues extracting the file name instead of the full path. net and am trying to do something really simple. ReadAllLines(sFile) System. C++ file path string: "c:\\foo\\bar. How would I go about this? Thanks. txt" For Input As #iFile Do While Not EOF(iFile) Line Input #iFile, sLine If sLine Like "*klm*" Then 'sLine has got the line , use End If Loop Close You'll have to use the ReadAllLines instead of ReadAllText. NewLine, acc) TextBox_pass. Any ideas? vb. Spurious text when using setspace and Is there a function which would search for the last occurrence of a certain substring and return the index of it? For example, if I want to search for the last occurrence of the char '\' in a file path 'C:\Program Files\Microsoft'. Keywords: files, directories, search, search for files, find files, replace, replacements, Here's a sample function you could use to parse your second file. Improve this question. txt file using keywords in random positions. Hot Network Questions What's the reality behind US claims of Chinese influence in Greenland? As the title say i would like to search a text file for a specific word and then start reading the text from that point forth. EventArgs) Handles btnOK. Title = "Open Text File" 'get the filename of the txt file If ofd1. ReadAllLines("file1") linesFromFile2 = in my VB. txt files found in the directory. ReadAllLines(TEST2) Dim part() As String = line. txt" for the second (absolute file specification). If File. txt file. Text, StringComparison. I did have this kind of code already in vb excell, but in vb. StreamReader can read files in line-by-line, which is more efficient with large files. To make the process case-insensitive, we first convert names and text file's contents to "lower case" and then compare them. Peek <> -1 vText = rvsr. TextFragmentAbsorber Replace a certain word/string in a . = My. Imports System. WriteAllLines(thefile, lines) Catch ex As Exception End Try The file might be either a text file or a CSV or Excel file. contains("D6") 'gives a Boolean How does i get the correct line? This demonstrates a faster way to search any file and pull a full line from that file given a search string, than the string buffer way. txt" instead of "file. txt so I wouldn't have to I have the following code: Private Sub btnCreateAccount_Click(sender As Object, e As EventArgs) Handles btnCreateAccount. mp3 Example If ( I need some help in extracting text from a text file using VBA. NET, but, as @TimSchmelter said, this looks like VBScript/VB6. This is a perfect task for regular expressions. Split("@")(0) 'Get everything after colon, and split the result again, grabbing everything before the amp. If you wish to make sure, copy the file over to the C:\ Drive to keep it simple and replace your BikeDefault. The first one depends on the current directory. this is the code that generates the text file: Try Dim filePath As String filePath First you need to read each line of the text file, like this: For Each line As String In System. Last() instead if you want to get a specific line of which you know the index number in the file skipping al the previous lines you could write something like Lets say I have a text Howard Johnson, 21 (USA). Empty Dim TextLine As String = "" Dim SplitLine() As String ofd1. I want to extract the text "Bob" from in between the two quotation marks and put it in the string "name" for later use. ReadAllLines(file), text) If UBound(lines) = -1 Then MsgBox("not found") Dim outputFile As String = "D:\testingoutput. Dim delimiter As String = "," Dim fileName As String = "c:\file. GetFolderPath(Environment. For example: Const chunkSize As Integer = 7 Using inputFile = File. Example: ElementName Value Age 24 Name John Clan Music Rock Suppose if I want to find Age. txt", encoding) File. GetEncoding(932) line = My. Dim lenStr = openBracket + closeBracket + 1 dim repStr = myText. File. If you consider the string "Number: "to be a delimiter between two other strings, then you can use Right now i have a line of code, in vb, that calls a text file, like this: Dim fileReader As String fileReader = My. File. TextBox1. The user gives an input as string. txt") How can i find the string an the next line after the string? Maybe: Findstring. Text 'this Textbox for searching text example : Yellow Dim lines() As String = File. Text) MsgBox(value) 'in this example, value is set to "6. The Dictionary Key represent the matched word, the Value, as an Array of Integers, all the positions inside the File where the word was found. Net controls are set up but is not a genuine String. WriteAllText(FilePath, newText) Replace a certain word/string in a . For i = 0 To Math. 1 How to replace text string in a text file. Examples. txt" 'Put your path Dim lines() As String = System. Dim pathlocal as string= Environment. Better explanation if I use a textbox and type in a text how I can use VB. Writing a text file from VB. txt file with another word/string. Count i If from_string is not null, the code reads the file into a string and sees whether it contains from_string. text &= ReadLine & vbNewLine End if As for saving text to file, you can look up a guide on the itnernet, there are many of those. Click Dim InvalidName As Integer = 0 Dim InvalidStudentNumber_Numeric As Integer = 0 For intIndex = 0 To txtName. ApplicationData) & "\Test\" Dim reader As New System. Const FOR_READING = 1 Const FOR_WRITING = 2 strFileName = "C:\scripts\test. txt") data5. Smaller files run in no time. Encoding. txt (with the same wild card requirement as above. txt" C# file path string: C++ way or @"c:\foo\bar. Add("a3") x. Split("@")(1) 'Get everything after colon, and split the result again, grabbing everything after the amp. Computer. NET comparing strings. Modified 8 years, I've just looped through each line of the text file. the file exist in the directory Documents under 'account. The first step is to load the file as a byte array instead of as a string. OpenText(path) Dim someString As String = Form1. ReadLines Dim fileName As String = "C:\file. ReadLine if ReadLine. this works great. FileExists(ReadALine(filename, 0)) Then MsgBox("FOUND") End If Change the number 0 to 1 or to 2 to get the second and third lines. Trouble translating a function from PHP to VB. (IndexOf will return -1 if the string is not found). Text) IO. Exists(file) Then file. I am making a program where i have 2 text files and i want 2 get one line from each text file like this. If you're reading from a text file, e. SpecialFolder. This example searches the directory C:\TestDir for any files containing the string "sample string" and displays the results in ListBox1. Look for Style Changes in Word. FileExists(sFileName) Then Dim srFileReader As System. ReadAllText function reads the entire text contents into a String. What I am really trying to do is get the program to generate a random number, and get the program to choose a line of text from a . Import text from a . Split(":")(1). Ask Question Asked 10 years, 2 months ago. Find and replace a text in XML using VB. Below is a sample that show how to draw a single line of text or multiple lines of text inscribed in specified rectangle. txt exists. It must have a string, in this case the individual items of the List(Of String). WriteAllLines(sFile, aLines) Here's a sample from the official documentation : Imports System. This This example shows how to recursively search for files and replace text in them in Visual Basic . Split(delimiter. ReadAllLines(hidFilePath. so any line in file2. That's it, you now have a program that will open, read and fill the DataSet with data from the data. How to replace text string in a text file. IO Public Class Form1 Dim SearchString As String = "" Dim Test() As String = File. For example:"D6" now i have to search this in the . ListBox1. StreamReader("C:\Users\TestFile. Net- How to get most recently created files in folder/How to get 10 most recent files from folder 0 Find the most recent file saved under same name but in different directories using . WriteAllText(filename, Once the user pastes their delimited string, how can I have VB. net; or ask your own question. ' Dim fileName As String For Each fileName In fileEntries If (System. ReadAllLines("C:\Users\Katie\Documents\Project\dictionary. txt" MsgBox(FILE_NAME) If I am writing code for a windows application using vb. Spreadsheet provides a wide set of methods for searching text that allow you to set search options like case sensitivity and wheter to match entire cell contents or just part of it. Inside Contains: Public Function Contains(ByVal value As String) As Boolean Return (Me. ReadAllText("C:\test. Text statement. net determine which character is delimiting? Example: input string: "aaa,bbb,ccc" I want to be able to scan that text and know that the delimiter is "," Same for "aaa;bbb;ccc", will be ";" Could be any number of values between the delimiters Since you can pass the start position into the IndexOf method, you can loop through the string by starting the search from where the last iteration left off. SearchOption. ObjectModel. IndexOf(value, StringComparison. Let's, for now, assume that there's one author per line. This is my code for reading the txtfile and put it in the datagridview. mshtml. For editing : Try Dim thefile As String = "C:\con_ip. The text is surrounded by symbols represented by the character codes in the . If you have control of how the text file is created, you might find it easier to have one line (containing barcode, price and name) for each item, but the following code uses the format that you have posted. Reading a filestream I am searching for a VBScript that does a search and replace in files (e. xml). net Reading from a . Wouldn't the first code snippet work if it used "C:\testfile. Read line on Txt after specific text VB. Frosty Assuming the input file is not huge, you can read the whole file into a string and change all instances of black= to blah blah. Xml. index, TextBox1. You can also take a I have a text file which contains information that i want to find and replace, and save to a new file. We use IO. Label4. NET specific functions. 0 code, simply set SearchString with the the string you want to search for: Imports System. Then loop through the array checking every third Import this namespace : Imports System. ReadAllText(FilePath) Dim newText = text. \Toleranz0. IO Public Class Test Public Shared Sub Main() Dim path As String = "c:\temp\MyTest. I did a Google search but couldn't find anything, but most likely the information was there I just didn't understand it. txt" Dim line As String Dim encoding As System. log" For Input as #FF Dim sData as String: sData = Input( LOF( FF ), #FF ) Close #FF ' Find where the useful stuff starts ' NB: Watch out for unix or Mac' files - they use a different line delimiter ' Skip the leading "noise" Dim iPos as Long: iPos _ = Instr( 1, sData, vbCrLf & Another method, using Regex. This page has examples for Create and Append. visual basic array searching. Count) - 1 Dim DestPath As String You could read all the text that the StreamReader gives you, and then you could split that by the Environment. Empty If myString. EventArgs) Handles Button1. Search a string and return line number VBA. Dim myText As String = "Howard Johnson, 21 (USA)" Dim textIWant As String = InStr(1, myText, There are several different ways of doing something like this. Contains("d") Then numberString = Robocopy logs its progress to a text file that I have labeled "Status. txt . The final piece that I'll Make 100% sure BikeDefault. *)|*. Path. The file specification is different for the two code snippets, "file. StreamReader Dim sInputLine As String srFileReader = I have TEXT File and extracted every line of data from text file. VisualBasic. ini" Dim text As String = IO. xyz" else. Word Macro - Log changes made Private Sub btnOK_Click(ByVal sender As System. ReadAllText reads an entire TXT file. First, to read and second to write, this is why you cannot write. ReadAllLines() method returns an array of strings). ReadLine ' ' Code here ' Loop Until a Is Nothing reader. Text file called "Playersort1" full of data set out like: Player1 v assignment means that Player is being stored as String+number which shows in the textbox correctly because of the way VB. Dim myStreamReaderL1 As System. Text) Dim a as String Do a = reader. Here is a revelant part for Create:. Text) wordFound = txtString. Collections. txt" If My. Replace("UserName = ", TextBox_NewUser. ReadAllLines() method, how to search and display specific line from a text file vb. Close() Dim strPerson As String = txtUserName. Peek() >= 0 strLine = String. NET program i have it create a text file that contains a username and password. ReadAllLines(vFileName) For Each line As String In Contanis occur if using the method of the present letter, and store the corresponding number using the IndexOf method, see example below. ShowDialog() = DialogResult. I am trying to continuously read the "Status. OK Then filename I want to be able to extract a string in between quotation marks or parenthesis etc. Dim filename As String = "C:\file. I basically don't want to loop through the byte array, because I have extremely long byte arrays and I want to search bytes in a flash. I also needed to replace text. (Please see image below) How can i find a string in a txt file and linenumber. Exists(fileName)) Then 'Read File and Print Result if its true ReadFile(fileName) End If TransfereFile(fileName, 1) Next I'm wondering if it is possible to check if a file matches a list of set extention. FindInFiles("C:\TestDir", "sample string", True, FileIO. Commented Sep 14, 2019 at 2:26. Lenght()) 'Do your stuff with your word Here's a function that will spit back your string from the row that contains your search term Public Shared Function SearchFile(ByVal strFilePath As String, ByVal strSearchTerm As String) As String Dim sr As StreamReader = New StreamReader(strFilePath) Dim strLine As String = String. For example my text might be "Hello there "Bob" ". Text = String. Exists(i) because i is your Integer variable, not a complete path. Lines If item. Visual Basic Replacing Part Of A Text File. Click Dim fi As New System. OpenTextFileReader(filetoimport. the file exist. where as I only need a portion of it. jpg or . write(HTMLString) htmlDocument. Public Sub WriteToFile(ByVal data As DataTable, ByVal FileName As String, ByVal FieldLength As String, ByVal StartPosition As String) Dim sbColumnData As New StringBuilder Using writer = New Reading and writing text files with VB. ToString()) Let dd = lin1. ReadLine() Dim take = False Do While Replace a certain word/string in a . Create(PageURL) Dim Response As HttpWebResponse = Request. Click Dim hash As List(Of String) = New List(Of String)(System. IO to get a string from a file. FileName If My. txt into a string and then displays it in a message box. txt 2. searching classes in an array. Ordinal) >= 0) End Function I can find text no problem, I am stuck trying to figure out a proper way to find characters, then capture the text following it and including the characters found. Add("a4") For Each s In x If Imports System. txt|All files (*. Text Dim lines() As String = Filter(System. net code - what should be given after Encoding. Private Function SearchWords(ByVal allWords As List(Of String), ByVal wordsToSearch() As String) As Dictionary(Of String, List(Of Integer)) Dim dResult As New Dictionary(Of String, List(Of Integer))() Dim i As Integer = 0 For Each s As String In wordsToSearch dResult. txt)|*. txt")) Dim Letters As String = lblLetters. SearchTopLevelOnly) For Each name In list Make sure to add a reference to Microsoft. Click Dim Search As String Dim Where As Long ' Get search string from user. VB by default doesn't allow for any character escape codes in strings which is different than languages like C# and C++ which do. Exists(fileName) Then FileText = IO. ReadAllLines("C:\con_ip. Length <> 20 Then MessageBox. NewLine) to split it on each new line. Once loop finishes, re-write I am new to vb. ReadLine() Dim items As String() = r. Then you should just be able to use the lambda expression you first mentioned (as the File. Dim filename As String = "C:\2\1. ReadLines("foo. Split Method with the splitter being "=", to split the string into param name, and param value. NewLine, pass) End Sub End I can tell you how to do it with VB. End If End If Next TextBox_acc. But recently, having lots of line and formula within the excel slows down the process. I have this code which reads certain line of text from . Hot Network Questions Dim ReadLine as String = Reader. C#: Is there any way to discover what charset encoding a file is using? 17. Dim FoundLine As String = Sub Main() ' Step 1 - declare input variables Dim outputFile As String = "D:\testingoutput. ReadAllText(". 'Reads each line from the text file one at a time For Each line As String In IO. Private Sub formatString(ByVal SearchText As String) Dim position As Integer = 0 Dim rtfString As String = LCase(rtfText. SearchAllSubDirectories) ' Show all file names in a listbox. IsWhitespace, this is quicker and much more obvious as to what is going onUse String. net to search a txt file for that piece of text and return the amount counted in another textbox or label. I have a vba code that copy-paste a text file to excel and run from there on. ReadLine ' nothing happens after this point Do While (Not line Is Nothing) If Hello guys i need a tip how to used many txt find and replace codes ,i used many codes but only worked last code. The Overflow Blog The ghost jobs haunting your career search Here's a sample function you could use to parse your second file. What to be used here, not seeing ANSI as an option. NET (encoding) 3. txt", 3) ' Deletes I'm assuming your text file has more than one line. Use this method. Uses an API method to open a file and store it in a buffer then instr'gs though the buffer to find a match, also compares this to the ordinary string buffer method, API wins by a factor of about 3. txt"). Show("Code executed!") vb. t A text file is one long string that may or may not have line break characters in. 1 How to Replace Strings in a Text File VB6. GetResponseStream()) S = Reader. Count but in some cases the count is wrong. In your case, the expression is as easy as ^\d+\s+to\s+\d+$ Which means: The beginning of the string (^),several digits (\d is a digit, the following + means: one or more of the previous),followed by several whitespaces (\s is spaces, tabs etc. Docotic. Related. the Username being on the first line, the password on the second. txt file and displaying the contents. HTMLDocumentClass Dim htmlDocument As mshtml. ReadLine() vstring = vText. If there is, you can get the entire string with My. Join(Environment. I want to search and replace some text in a . txt" that looks like this: Call of Duty: 50 Assasins Creed: 23 Watch Dogs: 140 If i want to know the number of "Assasins Creed" How would I get that? What i have tried so far: I have tried finding it by knowing the line, length of the string. Object, _ ByVal e As System. ReadToEnd End Using Catch Assuming a static number of characters per record (seven in your description), you could use a FileStream reader instead, and use the Read method to retrieve seven chars at a time. Empty strLine = sr. txt" for the first code snippet (relative file specification) and "C:\testfile. Object, e As System. Dim path As String = "c:\temp\MyTest. Add(file) vb. When Replace happens, the string part is found and replaced, the number part is not. Easier in your case is to use the File. Please guide me for this. Ask Question Asked 9 years, 5 months ago. Load SearchString = "Food" End 'If Regex. Add("a2") x. FilterIndex = 2 ofd1. Min(oldfldrnme. You can use IndexOf and SubString to find and extract the portion of the string that you want. WriteAllText(sFileName, newText) Share. 00" 'strOutput = +FormatRow(strData) '' Demo Data Dim sFileName As String = OpenFileDialog. Inside the XML file where ever I find the string as ("C:\Results\test1_01") I need to replace it with ("B:\final\test1_01") and save it. Viewed 9k times You use ReadLines that return an IEnumerable(Of String), then ask for the last line . StartupPath & "\bin\userconfig. VB. the file contains from hundred to thousand of lines. txt" If System. ReadAllLines reads the entire file contents into a String array where the elements of the array are the lines of the In this article we will learn different text file operations such as to know file exists or not, opening and creating a file, reading and writing file, copying and deleting file. ReadAllText Function from System. How to Replace Strings in a Text File VB6. What I need is a VB. I want to open a text file under c:\. txt" Dim strSearch As String = "Registry" ' ' Step 2a create an object that works as multiple-string container Dim lines As New List(Of String) ' Step 2b read the lines of text from . Pdf. Here's a quick example to show you how it could work (I haven't tested this code, it's just for reference) Dim linesFromFile1() As String Dim linesFromFile2() As String Dim combinedLines As New List(Of String) linesFromFile1 = System. Text & ";" & txtPassword. 237" when textbox input is "TR2999-01G" End Sub Private Function GetValueForPart(ByVal Dim myFile As String Dim text As String Dim textline As String Dim posIAV As Integer myFile = "file path" Open myFile For Input As #1 Do While Not EOF(1) Line Input #1, textline text = text & textline Loop Close #1 posIAV = InStr(text, "IAVs ADDED in this release include") MsgBox (posIAV) You can try writing into the Documents folder. txt", For example, I use Instr(String, "something to search") or InstrRev(String, "something to search") for strings. txt" that inside there is the word "temporary" and I want to change it to "permanent". First() End If If you don't want to ignore the case, just use String. check whether comma separated string contains a specific string in vb. For example: In the textfile is the word #name#, this must be replaced by the name typed in a textbox in VB. This example reads the contents of Test. FileSystemObject") 'Open the text file - strData now contains the whole file strData = objFSO. You can use System. ReadLines() when reading large files. Dim sr As New StreamReader("Data. OrdinalIgnoreCase) >= 0 If hits. HTMLDocumentClass() htmlDocument. txt file corresponding to the random number. Strings are always stored in memory with UTF-16 encoding, so once it's loaded into a string, the original encoding is lost. ReadAllText("C:\2\1. Dim filename As String = String. NET Find a string in an Array. Here is a "debug" function I did for the debugging needs of my project: Private Sub writeDebug(ByVal x As String) Dim path As String = System. The extracted data is stored to list of string then I iterate loop to List of string to manipulate and validate the data extracted. ReadToEnd(). The array is like any other array, and can be converted or modified. Private Function GetStatus(ByVal HTMLString As String) As mshtml. Remove(file) Else System. ReadAllText("data5. Text. ReadAllText (documentation)Use String. 0. Featured on Meta Results and next steps for the Question Assistant experiment in Staging Ground vb. Dim list As System. IO Module Module1 Sub Main() Dim vText As String Dim vstring(-1) As String Dim p1 As String() = {vbTab} 'Note I am using a string array and the vbTab Constant Dim vData As String = "" Using rvsr As New StreamReader("C:\\temp\\source. Split(Environment. VB . It takes a keyword as argument and returns the associated items: Function ReadData(ByRef keyword As String) As IEnumerable(Of String) Dim result = New List(Of String) Using reader = New StreamReader("file2. txt") MsgBox(reader) This example reads the contents of the ASCII file Test. ReadLines("text file path") 'split the string by equals sign Dim ary As String() = line. net Use your favourite search engine to find others. 3 Replace Text in a TextFile c#. Diagnostics. Serialization Imports System. *" ofd1. According to MSDN : The ReadLines and ReadAllLines methods differ as follows: When you use ReadLines, you can start enumerating the collection of strings before the whole collection is returned; when you use ReadAllLines, you must wait for the whole array of strings be returned before you can Normally you would use a combination of IndexOf and Substring, but in this particular case there is a better option. txt") Dim allLines As List(Of String) = New Here's the deal: due to the way files are stored on disk, you can't write to one line without also updating every line that follows it. Pdf library for this (disclaimer: I am one of developers of the library). Click to TextBox2. 3 Find and Replace string in a . OpenText("C:\File. Replace(repStr,"Whatever text you want to put here)" I do not have access to VB. net; replace; Share. I'm fairly proficient with Try using Docotic. If the file already exists I want to delete that file. txt", strTemp, True,System. net? 0. txt") Dim Line As String Do Line = Assuming you have the filename in a variable sFileName: Dim iFile as Integer Dim sLine as String, sNewText as string iFile = FreeFile Open "C:\Folder\replacewithpath\db. how to search and display specific line from a text file vb. Wile reading the file line by line, you can use String. Matches, which allows to search for a collection of words and returns a Dictionary(Of String, Integer()). The reason your current program is getting only the first item is because you're exiting the For loop after you find the first occurrence of a given sub item, regardless of how many there may be in the file. Load Perra, he wants to read a text file, then find a specific 'word' and replace the entire line, not just the found text. FullName Dim input() as string = File. Add(part(0 Dim hits = From item In listBox1. StartsWith(encryptedText) This would only find the encryptedText if it be appear on the very first line of the file. net check if word exists in string and act accordingly. RestoreDirectory = True ofd1. NewLine)(1) The most efficient would be to locate the line breaks in the string and get the line using Substring, but takes a bit more code:. Now every line of string I extracted, I want to validate if that line of string is contain 1). Combine() to correctly get the destination path. ReadLine If Here's an example of how you can do it without the fancy LINQ and Lambda which seem to be confusing you: Public Function FileMatches(folderPath As String, filePattern As String, phrase As String) As Boolean For Each fileName As String In Directory. Create a public function which checks all inputs Excepts : 0-9,a-z,A-Z `Public Function ContainsSpecialCharacters(Input As String) As Boolean I have a simple script that deletes the first n lines of a text file. net; forms; if-statement; contain; Share. If to_string is also not null, the code replaces from_string with to_string in the text and writes the text back into the file. Empty Try Do While sr. At any rate, you need to have some way to separate each author in the list. While it does work, my program locks up when trying to count a rather large file, say 10,000 or more lines. The extension method requires 2 parameters: - the path of the file to search Dim fileEntries As String() = Directory. Left Or Mid, But I always found this method rather tedious and I want to know if there is another easier method to do this. Search a text file for unknown text in vb. TextFragmentAbsorber = New Aspose. txt" 'Create a File System Object Set objFSO = CreateObject("Scripting. IO Dim int1 As Integer Dim path As String = "file. Diagnostics Imports System. at the moment i have a working code that only checks a file to see if it has a . Dim words = (From line As String In IO. txt") lines(Put which line to edit) = "Put the Value to edit " System. One of the reasons for doing this is ease of use when dealing with file paths. txt") myStr = Dim world As String = s. Here is the full code: Dim reader as StreamReader = My. ISBN 978-80-251-2025-5. If found, Replace the line in memory. Text = File. Text) As a side note, Contains is actually just a wrapper method for IndexOf that returns a Boolean. g. Click Dim fp as string = "" 'enter the full path to your file here Dim value as string = GetValueForPart(fp, Me. extract track changes information (inserted deleted text) from docx file. You could use the Regex class to find and read the matching value, or, probably most simply, you could just use the Split method. The same would be for "Hello there (Bob)". With the following example you can find and replace the first occurrence of the desired text, all the occurrences of some text, then you can use subString method like this to get your string . Start(file) End If For each txtFile in txtFilesArray 'here we grab the files information as we need the files directory Dim FileInfo As New FileInfo(txtFile) Dim FileLocation As String = FileInfo. A loop would be entered to test each line for the search criteria. Replace text. net. txt" You can use the StreamReader like so: Imports System. Ask Question Asked 13 years, 6 months ago. I read the file like this: Dim Findstring = IO. GetFiles(folderPath, filePattern) If fileName. Name of book 1. txt file and read the next line. EventArgs) Handles btnSearch. Length - 1 If IsNumeric(txtName. It takes a keyword as argument and returns the associated items: Dim result = New List(Of String) Using ReadAllText reads the entire file contents into a single String. Add(s, New List(Of Integer)) While i >= 0 AndAlso i < allWords. ),followed by the literal string to,; followed by whitespaces and then digits, What encoding we need to use to save a file as text file(of type ANSI) - While saving the text file ANSI encoding to be used. Click Dim myString As String = "abcdef" Dim numberString As String = String. ReadOnlyCollection(Of String) list = My. net Question with array search. ReadAllText() and use String. So you should try to use ioLines. IO Module Module1 Sub Main() ' Private Sub btnAnswers_Click(sender As System. Add(part(0), line) Next For Each line As String In System. 3. FindInFiles(MyApp. txt with "C:\\BikeDefault. Contains You will have to read all lines up to the one you're interested in. txt" file and look for the word "ENDED" to progress to the next terminal. StreamReader(pathlocal & "to. Is there a better or should I say faster way to count the lines in a text file? Here's what I'm currently using: If any line in file. Improve this answer. Substring(startIndex, lenStr) dim newString = myText. IndexOf(txtSearch. Text inside the string it will throw an exception Try 'Use Regex to find your word or your expression inside the string created before For Each data As Match In Regex. txt" Dim objWriter As New System. then I want to make the code return as 24 searching it from Excel file. txt" Dim sr As New StreamReader(fileName) Try While sr. ReadAllText(sFileName) Dim newText As String = RemoveDiacritics(text) File. I want to get the substring of the text Johnson. Contains instead of String. AddRange({"1", "b", "7"}) Dim mySerializer As XmlSerializer = New XmlSerializer(GetType(List(Of String))) ' To write to a file, create a StreamWriter object. You could use IO. vb. txt" ' This text is added only once to the file. The Overflow Blog A student of Geoff Hinton, Yann LeCun, and Jeff Dean explains where AI is headed Now let's check if the path is a file or not. txt") ' Process the list of . txt file and store them into the I have been trying to find a specific data in Excel through a WinForm application and then try to fetch the next value in the same row using vb. Object, ByVal e As System. ReadAllLines to read the entire text file into a String array. net; forms; if-statement; contain; or ask your own question. Dim reader = My. Hot Network Questions Here's one way with Framework 2. You cannot do Directory. using below code. text = ReadLine Else all_lines_textbox. txt") Dim line As String = reader. txt"? Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Examples. Count Select dd Dim file_count As Integer = FileCount. – Stefano d'Antonio. txt") While rvsr. VB - Find Replace on File. ReadAllLines(path) Dim found As Integer = -1 Dim i As Integer For i = 0 To There's a variety of good ways to do this. net; string; text; contains; or ask your own question. Pretty much all I need to do is replace a string from a text file with another one. Exists(path) = False Then ' Create a file to write to. Split (documentation) instead of Split Public Function DeleteLine(ByVal fName As String, ByVal LineNumber As Long) _As Boolean 'Purpose: Deletes a Line from a text file 'Parameters: fName = FullPath to File ' LineNumber = LineToDelete 'Returns: True if Successful, false otherwise 'Requires: Reference to Microsoft Scripting Runtime 'Example: DeleteLine("C:\Myfile. Text For Each item As String In hash Dim Found As Boolean = Imports System. Pdf Namespace BitMiracle. Hot Network Questions Which issue in human spaceflight is most pressing: radiation, psychology, management of life support resources, or muscle Here are a couple of cleanup notes: Get the lines of your first file by using IO. txt") Dim lines As String = sr. string; vb. Step 1 We call I am creating a system to validate if a text file contains this serial number, if it contains it opens to Form2. Split(",") file1. WriteAllText to create a file and write your info into it. Private Sub btnSearch_Click(ByVal sender As System. Contains(phrase) Then Return True End If Next Return False End You can use the IndexOf method on a string, and you can also use the VB InStr function if you wish, although I would suggest sticking to . Click l1. txt would be a file manually updated on occasion to include more items to be searched for in file. GemBox. net Find characters in a string then show the text found including the characters. There are number of ways to do this, and the one most appropriate for your situation will depend on things like the size of the file, are you doing this to a lot of files, where in the file you expect to find this, etc. Contains("myword") Then single_line_textbox. ReadAllLines("PathToYourTextFile. LastPath, txtFindText. FileSystemObject") Set objTS = objFS. Dim FilePath As String = Application. 1. Filter = "txt files (*. Close() Share Improve this answer The code in the answer and in the comments do not paste into VBA and work on the first try. If the file does contain from_string, the code adds the file's name to the list. to a variable. I can't find the For Each item As String In rtb_critical. Use a state machine to iterate over the string and check words after white space. Find line number in multiline textbox that contains certain data. Modified 10 years, 2 months ago. NET C# Deserialze the string to a List of the object type. ToCharArray()) End While Finally sr. I am using seek but not working. IndexOf. xml file, it will search it when you type something in the ic box, the text boxes use databinding to show values automatically, and First get all text files in the application's startup directory. ReadAllLines(FileLocation) 'now you have read in your text file you can edit each file as it goes through the loop 'you can now use Dim file1 As New Dictionary(Of String, String) Dim file2 As New Dictionary(Of String, String) For Each line As String In System. NewLine character(s). I have file "1. Replace (documentation) instead of Char. . Can someone please help me? Tnx By "duplicate strings", I think you mean how to read the file when there is more than one item (group of 6 columns) in the file. EventArgs) Handles MyBase. txt") Next Next, you need to search for the string you want to match; if found, then replace it with replacement value, like this: Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1. readFile = FreeFile readFile = FreeFile Open BestandsNaamInput For Input As #readFile writeFile = FreeFile Open BestandsNaamOutput For Output As #writeFile Do Until EOF(readFile) Line Input #readFile, AktTxt If InStr(AktTxt, BerijkGrensStart) <> 0 Then 'Schrijf [001 in writeFile VB. IHTMLDocument2 = New mshtml. Matches(txtString, TextBox1. Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1. I would also suggest that you take a look at the documentation of the String methods which will help you know what functionality is available in the framework when working with strings. Contains(TextBox1. Dim text As String = File. In your example the relevant string is somewhere in the middle of the iolines string. OpenTextFile(strFileName, FOR_READING) strContents = objTS. FileSystem. Net means of searching a string for all of the instances of a given substring. IO. Here is the code I'm working with. ', 'Author 2. ReadAllLines("Test. For instance: Dim getLiteratura As String = "'Author 1. I think you could use File. I figured out how to put the text in a textfile but then it first cleans the whole file and places the text in the first line. Split("="c) 'Check the data type of the string we collected is inline with what we are Dim file As String = "c:\data. ReadAllText(fileName) If FileText. GetResponse() Using Reader As StreamReader = New StreamReader(Response. Text Dim sw As New I am currently using the code below within a VB. Click Dim x As New List(Of String) x. Use the File. Environment. txt" Dim FileText As String = "" If IO. txt") Private Sub Form1_Load(sender As System. FileInfo(strUsersPath) Using r As StreamReader = New StreamReader(strUsersPath) Dim line As String line = r. The file could be read into memory (the entire file at once, then Split on carriage returns). Take a look at System. Net application to find specific text in a Word document. Match doesn't find your TextBox1. 5 for a 1 meg text file which is not bad. GetFiles("YourPath", "*. Dim yay As String = s. I used RegEx for this but it gives me no luck. Split each string as array, concate them, and by linq you aggregate the content, and filter only text that have count as many as your string, for example if you have 3 strings, you filter the count of text equals to 3 – user11982798. NewLine) sr. public class MyObject { public string Id { get; set; } public string Description { get; set; } } For the actual finding of the appropriate result. You can loop through the items of the list with a For Each loop. OpenTextFile(strTextFile,ForReading). Any Then listBox1. Then iterate over all names in the ListBox and for each one, search in all text files to find the file that contains that name. ini file. Add("a1") x. Modified 13 years, 6 I am new with VB. I have chosen to use Newtonsoft to deserialize here but you can choose whatever. StreamWriter(outputFile, True) Dim strSearch As The File. Count, newfldrnme. Peek() >= 0 Dim r As String = sr. Value. net it doesnt work. ReadAllLines(TEST1) Dim part() As String = line. Public Shared Function FindInPDF(sourcePdf As String, searchPhrase As String) As Boolean Try ' Open document Dim pdfDocument = New Document(sourcePdf) ' "D[a-z]{7}" ' Create TextAbsorber object to find all the phrases matching the regular expression Dim absorber As Aspose. txt" Dim reader As StreamReader Public Sub find() int1 = New Integer reader = File. Using Startposition as 30. I'm using the folowing code to get the record count like this: Dim FileCount = From lin1 As String In File. txt. That is as far as I have gotten. Encoding = System. WriteAllText("d:\binary. txt" iNumberOfLinesToDelete = 5 Set objFS = CreateObject("Scripting. my code ----- Dim file As String = "C:\test. We store this data into a String dim in the VB. Every time that I try to write a script that contains open a txt file and the command replace, it The Contains function cannot take a list as an argument. At this moment I need to know when the the current running update is done to progress to the the next terminal. Dim objFSO, strTextFile, strData, arrLines, LineCount CONST ForReading = 1 'name of the text file strTextFile = "sample. If it contains the matching string, replace it. ReadAll 'Split by lines ' Read the whole file into a string buffer Dim FF as Integer: FF = FreeFile() Open "C:\Reports\log. txt'. Samples Public NotInheritable You open twice the same file. txt". close() Return htmlDocument End Function I am new to VB. The file2. ? My. txt" Dim sw As StreamWriter ' This text is added only I am new to VB and I am trying to add text to a specific location in the text file. mhgpw itbab wtdhcjb pvof vttgfgo bewa nrttu aleli xrpfh alv