System.Windows.Forms.Timer GetBoardTypeConnected;

Hello,

I  have problems with the following code.
I wanted to enter the "GetBoardTypeFunc" only once, therefore in this function I stop the timer.
Although I stopped the timer I see that I continue to enter the "GetBoardTypeFunc" function.
Why?
Should I unsubscribe from the event EventHandler(GetBoardTypeFunc)?
If yes, what is a sintax?

THANKS
Margarit

System.Windows.Forms.Timer GetBoardTypeConnected;
//////////////////////////////////////////////////////////////////////////////////////////////////////
private void GetBoardType()
        {
            GetBoardTypeConnected = new System.Windows.Forms.Timer();
            GetBoardTypeConnected.Interval = 400;// 250;
            GetBoardTypeConnected.Start();
            GetBoardTypeConnected.Tick += new EventHandler(GetBoardTypeFunc);
        }
 
 private void GetBoardTypeFunc(Object state, EventArgs eArgs)
        {
            a++;
            GetBoardTypeConnected.Stop();
            GetBoardTypeConnected.Dispose();
        }
///////////////////////////////////////////////////////////////////////////////////////////////////////////

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