// This method handles the "Launch Url Builder UI" menu command.
// Invokes the BuildUrl method of the System.Web.UI.Design.UrlBuilder.
private void launchUrlBuilder(object sender, EventArgs e)
{
    // Create a parent control.
    System.Windows.Forms.Control c = new System.Windows.Forms.Control();            
    c.CreateControl();            
                
    // Launch the Url Builder using the specified control
    // parent, initial URL, empty relative base URL path,
    // window caption, filter string and URLBuilderOptions value.
    UrlBuilder.BuildUrl(
        this.Component, 
        c, 
        "http://www.example.com", 
        "Select a URL", 
        "", 
        UrlBuilderOptions.None);                      
}