textbox keypress

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how can i trap my textbox that allows numbers and letters only, no space no special characters e.g (,./;'[]-=`<>?:"{}_+|~!@#$%^&*())

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Last Post by TnTinMN

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TnTinMN 418 · Answer 1 · 2012-09-19T02:37:10+00:00

   Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
      If Not Char.IsLetterOrDigit(e.KeyChar) Then
         e.Handled = True
      End If
   End Sub

TnTinMN 418 · Answer 2 · 2012-09-19T03:17:43+00:00

Just thought about the decimal seperator.

   Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
      If (Not Char.IsLetterOrDigit(e.KeyChar)) And e.KeyChar <> Threading.Thread.CurrentThread.CurrentUICulture.NumberFormat.NumberDecimalSeparator Then
         e.Handled = True
      End If
   End Sub