How to Collapse magnifyingGlass

Question

Scenario Desription: 
1) Created MagifyingGlass.xaml and loaded ESRI's sample code in http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#MagnifyingGlass
2) Created a button on the toolbar for the MagnifyingGlass tool
   if (btn == btnMagnifyingGlass) {
         // if it is collapsed
         _Parent.ShowMagnifyingGlass();
   }
   and 
        public void ShowMagnifyingGlass()  {
            MyMagnifyingGlass.Visibility = Visibility.Visible;
        }

Questions:
1) How to check whether the tool is collapsed or not (can't do like that: MyMagnifyingGlass.Visibility.Collapsed )?
2) How to set the tool Collapsed or Visible?

Thanks.

ShaningYu · Answer

Thanks!  Jenniffer.  You are very helpful!!!

JenniferNery · Answer

The MagnifyingGlass is just like any other Control. It's Visibility can be checked and set just as you would any other Control.
Questions:
1) How to check whether the tool is collapsed or not (can't do like that: MyMagnifyingGlass.Visibility.Collapsed )?

if (this.MyMagnifyingGlass.Visibility == System.Windows.Visibility.Collapsed)

2) How to set the tool Collapsed or Visible?

this.MyMagnifyingGlass.Visibility = System.Windows.Visibility.Visible;