VB.NET

Validate a textbox

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Join Date: Jun 2009

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Validate a textbox

Jul 12th, 2009

I want to validate a textbox so that only numeric values can be inserted in to it.
This validation should done while user enters the values.
For example.
Consider following keys had been pressed in a sequence

12345abcd678

only numeric values should appear in the textbox

so value which should be displayed in the textbox is
12345678

Any suggesions????? Please comment

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Join Date: Mar 2008

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Re: Validate a textbox

Jul 12th, 2009

 Help with Code Tags 
 VB.NET Syntax (Toggle Plain Text) 
 Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
        If Asc(e.KeyChar) >= 48 And Asc(e.KeyChar) <= 57 Then
            e.Handled = False
        Else
            e.Handled = True
        End If
    End Sub
 Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
        If Asc(e.KeyChar) >= 48 And Asc(e.KeyChar) <= 57 Then
            e.Handled = False
        Else
            e.Handled = True
        End If
    End Sub