public void OnClick()
 {
     if (this.hk == null)
     {
         return;
     }
     if (this.hk.MapControl.Map.LayerCount > 0)
     {
         GraduatedSymbols GraduatedSymbols = new GraduatedSymbols(this.hk);
         GraduatedSymbols.Show(this.hk as System.Windows.Forms.IWin32Window);
     }
 }
 public void OnClick()
 {
     if (this.hk == null) return;
     if (this.hk.MapControl.Map.LayerCount > 0)
     {
         GraduatedSymbols GraduatedSymbols = new GraduatedSymbols(this.hk);
         GraduatedSymbols.Show(this.hk as System.Windows.Forms.IWin32Window);
     }
 }