You are using Form, so I am guessing your code is in Window Form.
So you can implement a
TIMER (Go to
TOOLBOX >> Click
COMPONENTS >> Drag
TIMER to the Form), You have to call your Constructor method to this function:
timer1_Tick(...)
Now right click your timer in
Form1.cs [Designer] and select property. Now you have to set the
Interval field to
120000 (Remember this interval is in milliseconds) and Set the
Enabled field to
True.
You are done.