Box

[msappletech]

How do I limit the length of the lines in a text or rich text control in multiline mode to 100 characters. The functionality would be type 100 characters and then a carriage return type 100 characters and then carriage return.

 

[iebidan]

In a textbox and a Rich TextBox you can limit the size using the property MaxLenght

 

[msappletech]

This will limit the control to 100 characters. I only want to limit the lines in the control. The control will be able to accept as many characters as needed but the line will be limited to 100 chars.

 

[Heiko]

do it in keydown event.

set up an internal counter.
count to 100.
cancel all following keydowns until newline has been pressed.
reset counter.

 

[spebola]

You could do as heiko suggest, but when the counter reaches 100, automatically insert the carriage return and reset the counter.

 

[iebidan]

oh yeah right, I didnt read about the carriage return sorry

 

[msappletech]

I tried this code. Id does not work but I think it could with some help.

Private Sub txtEdit_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtEdit.TextChanged
Dim intLineNumber As Integer
intLineNumber = txtEdit.GetLineFromCharIndex(txtEdit.SelectionStart)
MsgBox(Len(txtEdit.Lines(intLineNumber).ToString))
If Len(txtEdit.Lines(intLineNumber).ToString) = 10 Then
txtEdit.Lines(intLineNumber) = txtEdit.Lines(intLineNumber) & vbCrLf
End If


End Sub