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It's worth being familiar with both methods:

1) In VB.Net you have the quick and easy My.Computer.FileSystem.WriteAllText option:

My.Computer.FileSystem.WriteAllText("c:\value1.txt", TextBox1.Text, False)

2) Or else you can go the "long" way round and use the StreamWriter object. Create one as follows - set false in the constructor tells it you don't want to append:

Dim objWriter As New System.IO.StreamWriter("c:\value1.txt", False)

then write text to the file as follows:


How to write textbox values to .txt file with - Stack Overflow textbox text-files
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Have a look at the System.IO and System.Text namespaces, in particular the StreamWriter object.

How to write textbox values to .txt file with - Stack Overflow textbox text-files
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1. you are trying to store the return value of the function File.WriteAllLines() into String variable line but File.WriteAllLines() does not return anything it's return type is void

2. you can use File.WriteAllText() function to write your string entered in TextBox.

private void Button_Click_2(object sender, RoutedEventArgs e)
        File.WriteAllText(filename, textbox2.Text);

list - How to write from textbox to file? C# - Stack Overflow

c# list textbox
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StreamWriter writeFile = new StreamWriter(fileLocation);


It depends what your aim is, as to when to save the file. If you want to save every time a text box text is changed, hook them all up to that event.

Althought if otherwise you could do it on a button click (save button?).

The same as you did with the TextChanged event for the TextBox. Add a button to your form, then either double click the Click event in the Events or in code assign it as yourButton.Click += new EventHandler(yourButton_click);

textbox - How to write multiple textboxes into a programme generated t...

c# textbox text-files
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try to put a seprator between values stored in file, then you can read it as below:

Dim fileReader As String
fileReader = My.Computer.FileSystem.ReadAllText("C:\test.txt")

Dim strArray() as String = fileReader .Split("|") 'change the | by your separator

TextBox1.Text = strArray(0)
TextBox2.Text = strArray(1)
TextBox3.Text = strArray(2)

you should make a loop that start from zero and ends to strArray().Lentgh -1

Read Text from file and put the in the TextBox in - Stack Overf...
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You can write to a file using File.WriteAllText method. It takes two parameters. The first is the path to the file, which you get from the SaveFileDialog. The second is the value you want to write to the file.

i believe we have a winner! ill try this and ill get back to you. :P

How to save a content of a specific textbox to file using - Sta... textbox savefiledialog
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I wrote a program to both write to and read from a text file. To write the lines of a list box to a text file I used the following code:

Private Sub txtWriteToTextfile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtWriteToTextfile.Click

    Dim FileWriter As StreamWriter

        FileWriter = New StreamWriter(FileName, False)

        ' 3. Write some sample data to the file.
        For i = 1 To lstNamesList.Items.Count
            FileWriter.Write(lstNamesList.Items(i - 1).ToString)
        Next i


End Sub

And to read and write the contents of the text file and write to a multi-line text box (you just need to set the multiple lines property of a text box to true) I used the following code. I also had to do some extra coding to break the individual words from the long string I received from the text file.

Private Sub cmdReadFromTextfile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdReadFromTextfile.Click
    Dim sStringFromFile As String = ""
    Dim sTextString As String = ""
    Dim iWordStartingPossition As Integer = 0
    Dim iWordEndingPossition As Integer = 0
    Dim iClearedTestLength As Integer = 0

    Dim FileReader As StreamReader

        FileReader = New StreamReader(FileName)

        sStringFromFile = FileReader.ReadToEnd()

        sTextString = sStringFromFile

        txtTextFromFile.Text = ""

        Do Until iClearedTestLength = Len(sTextString)

            iWordEndingPossition = CInt(InStr((Microsoft.VisualBasic.Right(sTextString, Len(sTextString) - iWordStartingPossition)), " "))

            txtTextFromFile.Text = txtTextFromFile.Text & (Microsoft.VisualBasic.Mid(sTextString, iWordStartingPossition + 1, iWordEndingPossition)) & vbCrLf

            iWordStartingPossition = iWordStartingPossition + iWordEndingPossition

            iClearedTestLength = iClearedTestLength + iWordEndingPossition



End Sub - Read Text File and Output Multiple Lines to a Textbox - Stac... visual-studio-2008 textbox while-loop
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Dim FILE_NAME As String = "C:\VALUE2.txt"
If System.IO.File.Exists(FILE_NAME) = True Then
  Dim objWriter As New System.IO.StreamWriter(FILE_NAME)
  MsgBox("Text written to file")
  MsgBox("File Does Not Exist")
End If

How to write textbox values to .txt file with - Stack Overflow textbox text-files
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You need to do several things in order to get this to work (and to have it make any sense).

To start with, C:Temp is not a valid folder location. If you're looking to start in the Temp folder located off the root of drive C:, the correct path is C:\Temp (note the backslash).

Next, Cursor Files do not end in .txt, and you can't display the contents of a Cursor File in a TextBox, because it is a text box, not a cursor box.

(And just to make sure you know: All of the things you're setting in your code for the OpenFileDialog, like Title, Filter, and InitialDirectory can be set at designtime using the Properties window in the Visual Studio IDE. If they're always going to be the same values, set them there instead and remove the code.)

Adding those fixes, and some code to actually load the file if one is selected (and not try to do so if the user cancelled), we can do something like this (tested in VS2012, as I don't have 2010 installed any longer on this box):

Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, _
 ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click
    OpenFileDialog1.Title = "Please Select a File"
    OpenFileDialog1.Filter = "Text Files|*.txt"
    OpenFileDialog1.InitialDirectory = "C:\Temp"
    If OpenFileDialog1.ShowDialog() = DialogResult.OK Then
            Using sr As New System.IO.StreamReader(OpenFileDialog1.FileName)
                TextBox1.Text = sr.ReadToEnd
            End Using
        Catch e As Exception
        End Try             
    End If
End Sub

Hey, thank you all for the help, i have added the \ and changed from cursor to text, i did try the code you gave me but the "catch e as exception" line gave me an issue "variable e hides a variable in an enclosing block"

Opening a .txt file to a textbox in - Stack Overflow textbox
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The basic problem is you are trying to save different textbox values into one txt file. Change the txt file-names along with the textBox names, and you will be good to go .. :)

No... This is not necessary... Just find a way to distinguish the entries into a single file!

for that, i think an xml file would be best fit.

@user1934845 : you will find many codes by just google, for saving each text-box data in separate nodes, and then read text by node and put them back in the respective textboxes

c# - textbox save and show from a .txt file - Stack Overflow

c# winforms textbox