VS 2008 Find And Replace A String Within A Text File?
Dec 25, 2011
I have to find a string in a huge text file ( ~ 50MB) and then replace it.Since it's quite huge I tend to open the file and then read line by line, and then replace the necessary line(s) (rather than "readall" the file of course).My question is how to replace the whole line?Let's say I found the line that should be replaced . I know I can create a copy file and copy all lines into there ... but I'd prefer to replace the line in the original file rather than creating a copy instance.
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Nov 1, 2009
I would like to step through each *.txt file in a given directory, open it, find and replace all, perhaps a thousand, occurances of a given string (e.g. "00/00/00"), then close and save file, and step to next one in the directory to do the same find and replace. I've been looking at filestream classes and regular expressions but don't see a clear way to do this.
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Jul 22, 2010
I have thios code that will load a php file (text file) into a sting via streamreader then its supposed to find and replace a portion of the text and write the changes back out to the file via streamwriter. I put my code together and after running it look at the file and it's unchanged. After looking closer it appears the problem is the find & replace operation I am doing on the string. Here is my code:
[Code]...
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Jan 20, 2012
I've got a listbox build up as an array of items like this: First column is product id, 2nd column is name, 3rd column is price, 4th column is amount and I put them in an array: Public Item(3) As String,
7226218; Hemlock; 22.55; 0
7711175; Pine, Radiata; 12.45; 0
2229886; Pine, Arkansas; 15.25; 3[code].....
how to change the line if the Order(0) value is found in the listbox with the new amount value..
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Mar 14, 2012
I have this code attached to a button
If htmlText.Contains("<frame src='demo.html'/>") Then
htmlText = htmlText.Text.Replace("<frame src="demo.html/>", "<frame src='" &
OpenStory.FileName)
[code].....
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Jun 3, 2011
I am making a program for work, i have it partly coded, unfortunately i don't have a wifi connection for my laptop right now which makes it hard to add my code here. What i am trying to do is have the user pull in a text file from anywhere on the computer using a open file box that pops up, i got that part, to make sure that is working i have a textbox that reads the data of that text file, it gets pulled in fine using a stream reader. Now what i need to do is search the text file for certain values, and depending on the selected item in the listbox which is on another form, change that value in the text file, im guessing i will need to use a stream writer, and ive seen examples used based on the file location(C:....) but in my case im not sure how to do it.
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Apr 12, 2012
I am using Visual Basic 2008 Express Edition, my goal is to read an entire .txt file that works as a template and replace all ocurances of a word with a new one and save this new modified text in a new .txt when you press a command button.
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Jan 1, 2007
I have a project to complete and i have begun the code. What i want to do is go through the text file and find evey | (pipe) symbol and change it to a , (comma). I have the code and worked out how to do it but the code will only work for the first line. I was just wondering whether any of you had any advice on the way through this problem because i am stumped.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As_ System.EventArgs) Handles Button1.Click
Dim strFile As String
[code].....
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Aug 6, 2011
I have a small app for find and replace text in a richtextbox:
1-One button: Replace
2-Textbox1 : Find
3-Textbox2 : Replace for
But I want to know if is possible find and replace the text in the richtextbox with a xml file example:
Text in the richtextbox: "I will buy a car"
XML:
<pre lang="vb">
[Code]...
If is possible please can you give me a example code?
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Feb 11, 2010
lswScriptreader =
New System.IO.StreamReader("test.txt", System.Text.Encoding.Default)
lswScriptwriter = File.AppendText("test1.txt")[code]....
Hex(D1) is my column Terminator and need to replace it with ",".
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Aug 4, 2011
I have a program that will read a text file and put information from the text file into multiple text boxes. What I am trying to do now is be able to change the values in the textboxes and be able to write the specifc changes back to the text file. One way I though of doing that was using a while loop and copy the lines of the text file to another text file, then when it finds the line that has the specific change from the text box, make the change and continue writing the line until it reaches the end of the file. Then I was going to copy the file and overwrite the original, escientally making the change to the new file. Right now it will make the new file but will just make a blank text file. I think the problem is in the while loop statement but I am not sure. Here is the code below:
Code:
Private Sub submitButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles submitButton.Click
Dim trackname As String
[Code].....
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Nov 13, 2011
1) a text document which has content like :
uber|uber|ultra
taxi|taxi|taxi cab|cab|minicab|airport taxi|airport transfer
genitalia|genitalia|genitals
[code].....
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Dec 9, 2011
I have a bunch of object variables which are all initialised in their declarations such that:
Private _myObject As New ThisObject("SomeString")
where ThisObject is one of a number of object types, but all are initialised using a string.
I would like to use the Visual Studio Find/Replace dialog box to search for "As New" then replace everything from "As New" to the first set of speech marks with some text such that:
EDIT
My original example could be solved using other methods. This example is more representative of the actual problem:
Private _myObjectA As New ThisObjectA("SomeString")
Private _myObjectLongName As New ThisObjectLongName("SomeString")
[Code]....
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Feb 16, 2010
How would I go about replacing a portion of text in a text file with a string?
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Aug 15, 2010
What would be the most quickest way to edit a text file on a remote host?
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May 30, 2011
I have a file, i am using ReadAllLines to read all the lines in this text, then for each line I want to check if it contains a certain string if so I want to insert below this line another line without changing the rest of the file.
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Jan 12, 2009
Dim input As IO.StreamReader = New IO.StreamReader(Application.StartupPath & "dcm.rtf")
Dim output As IO.StreamWriter = New IO.StreamWriter(Application.StartupPath & "dcm" & denumire_folder_destinatie & "" & denumire_fisier_destinatie)
[Code]...
Is not replacing the stings and if i try tu change the strings for example "[filiala]" with "01filiala" etc... it's not replacing all of them!
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Jun 1, 2010
Trying to use a str = Replace, but having issue. Seems that after it does the first string replace it will not let go of the file or the Dim or something???
'Make first file
Private Sub MakePwdFile()
Dim fso, inputFile, outputFile
Dim str As String
fso = CreateObject("Scripting.FileSystemObject")
'1 means for reading
[Code] .....
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Apr 26, 2012
I have an issue with finding specific text within a string and then replacing it with " ", which is just a blank entry.[code]So now my issue is to search the ABCTEST text and delete text such as "Tier Market" from it. Then pass it to a new string perhaps ABCTEST_NEW..I know i might have to use a for loop to search out the keywords, but all the examples i have had a look at, are very broad.
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Aug 14, 2010
Dim r As String
If r.Contains("src") Then
r.Replace("src=""", "")
'r.Replace("src='{0}'", "src='http://google.co.in'")
End If
Response.Write(r.ToString())
Response.End()
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Dec 6, 2009
Im trying to replace text in a file but i play it, it doesnt replace the text. I even have the spaces correct but it doesnt want to replace it with nothing.
Dim EntireFile As String
Dim oRead As System.IO.StreamReader
oRead = IO.File.OpenText(TextBox1.Text)
[Code]....
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Jun 7, 2011
I've got an application that passes commands to a terminal window and saves all the output to a text file Here is one of the commands my application passes to the terminal
MyProcess.StandardInput.WriteLine("host " + device)
The output of which is
"HostA has address Y.Y.Y.Y"
this along with a whole bunch of other text is saved to a text file...my question is how do I find the sting "HostA has address Y.Y.Y.Y" in that text file and then extract the IP address and assign it as a string variable?
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Jun 4, 2009
I have this code to search text and replace it in a file. But might it optimized?
Example:
Dim reader As StreamReader
Dim contents As String
Dim writer As StreamWriter
[Code]....
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Apr 13, 2009
I need to find the first letter in a message and replace it with the 5th vowel in another string. However it never gets into the condition in Red Color. I also need to keep the count of the characters in the characterarray. ???
[Code]...
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Jul 19, 2011
I am looping through a word doc where I need to find a string to replace and these are in text box's so I thought I could do something simple like this but its not working.
vb
For Each oRng In doc.StoryRanges
Do
strTxt = oRng.Text
If strTxt = "textToReplace" Then
[Code] .....
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Jun 22, 2011
I have a XML file. Inside the XML file where ever I find the string as ("C:Results est1_01") I need to replace it with ("B:final est1_01") and save it.
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Jun 2, 2010
Been trying to get somewhere with this in another thread, but no such look, just keep getting reffered back to the same documentation... If I understood the documentation, I would have fixed it by now:
vb.net
Private Sub MakeiSuitePwdFile()
Dim text As String =
[code].....
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May 12, 2012
I am attempting to make a text editor. I have a folder which contains hundreds of text files. I would like to search through all files simultaneously, for some text then replace the text with other text & save, & overwrite originals. I've got most of the basic structure done, but I've go no idea how to search for text in all files in a folder.
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Oct 9, 2010
I have been wondering about this for a long time and have not found any ways to do this other than write my own text editor for it. Regarding the following lines of
[Code]...
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Apr 12, 2012
I am trying to open up a text file that contains some text. I have 3 text boxes on my screen. What I need to figure out is how to replace multiple words (1 in each textbox) with text it finds in the txt file.
I can do this by using the single find / replace feature but I'm trying to be able to fill out the 3 textboxes and then click my find / replace button to have my Regex find each predefined word and replace it with what is in the text boxes.
Here is my code to get the find / replace one word at time feature. I've tinkered with this to just add more variables to my Regex but it doesn't seem to work.
[Code]...
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