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By: a guest | Apr 27th, 2010 | Syntax: VB.NET | Size: 0.37 KB | Hits: 109 | Expires: Never
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  1. Public Class Form1
  2.  
  3.     Private Sub txtName_Validating(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles txtName.Validating
  4.  
  5.         If txtName.Text.Trim() = String.Empty Then
  6.             epName.SetError(txtName, "You cannot leave this blank.")
  7.         Else
  8.             epName.Clear()
  9.         End If
  10.  
  11.     End Sub
  12.  
  13. End Class
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