2013-10-01 3 views

답변

0
private void txtchild_KeyPress(object sender, KeyPressEventArgs e) 
    { 
     if(txtchild.Text.lenght>2) 
     { 
     e.Handled = true; 
     } 
     else 
     { 
      MessageBox.Show("Value must be Two digit"); 
     } 
    } 
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