C#

<font color=blue>if</font>(<code>button1</code>.click!=null){
   <font color=green>//so there is some event handler associated with click</font>
}
<font color=blue>else</font>{
   <font color=green>//there is no event handler associated with click event</font>
}

<configuration>
  <configSections>
    <section name="ApplicationData" type="Support.ConfigSettingsSectionHandler, Support" />
  </configSections>
  <ApplicationData>
    <add key="Height" value="618" />
    <add key="Width" value="968" />
    <add key="Top" value="116" />
    <add key="Left" value="138" />
  </ApplicationData>
</configuration>

-Nick Parker
DeveloperNotes.com

public class PWColumn : DataGridTextBoxColumn
{
    protected override void Paint(Graphics g, Rectangle bounds, CurrencyManager source, int rowNum, Brush backBrush, Brush foreBrush, bool alignToRight)
    {
        MyClass thisObj = (MyClass) source.Current;
        string orig = thisObj.Password;
        orig = Regex.Replace(orig,".","*");
        this.PaintText(g,bounds,orig,alignToRight);
    }
}