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Thread: Validate pasted data

  1. #1

    Thread Starter
    New Member
    Join Date
    Jun 2002
    Posts
    8

    Question Validate pasted data

    I am tring to validate the data being pasted into a text field before it is written to the field.

    I need to disable the paste of non numeric characters even if pasted from the clipboard.

    I already disabled the Ctrl+V option, but I still have the paste option in the right-click menu opened for the textbox.

    Thanks

  2. #2
    Addicted Member
    Join Date
    Jul 1999
    Posts
    207
    I suppose you could scan through the textbox and see if any of the characters are not numbers on the textchanged event. Then either remove the the letters/non numeric characters or take everything out of the textbox.

    example:
    Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
    Dim s As String
    Dim c As Char

    For Each c In TextBox1.Text
    If c = "1" Or c = "2" Or c = "3" Or c = "4" Or c = "5" Or c = "6" Or c = "7" Or c = "8" Or c = "9" Or c = "0" Then
    s &= c
    End If
    Next
    TextBox1.Text = s
    End Sub

    Jeremy
    Last edited by Jeremy Martin; Oct 9th, 2002 at 10:09 AM.

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