8.8.txt

《Microsoft Visual C# .NET 2003开发技巧大全》源代码

Listing 8.8 Determining the Clicked ToolBar Button
private void toolBar1_ButtonClick(object sender,
System.Windows.Forms.ToolBarButtonClickEventArgs e)
{
switch( toolBar1.Buttons.IndexOf(e.Button) )
{
case( 0 ):
{
richTextBox1.Clear();
break;
}
case( 1 ):
{
if( openFileDialog1.ShowDialog() == DialogResult.Cancel )
return;
richTextBox1.Clear();
richTextBox1.LoadFile( openFileDialog1.FileName );
break;
}
case( 2 ):
{
richTextBox1.Cut();
break;
}
case( 3 ):
{
richTextBox1.Copy();
break;
}
case( 4 ):
{
richTextBox1.Paste();
break;
}
default:
{
break;
}
}
}