Context menu strip event handler

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C#3.0

C#

i have one user control design form1 it's have contextmenustrip items are Load customer,Zoom in,Zoom Out,Exit

the user control use to another form2 so i want to contextmenustrip in mouse right click event and i click Customer Load = it call to form2 Load customer()method

same Zoom in,Zoom Out,Exit

if (e.Button == MouseButtons.Right)
           {
               int x = Cursor.Position.X;
               int y = Cursor.Position.Y;
               contextMenuStrip1.Show(x,y);
           }

it will show context menu strip mouse right click event

how to call Events

1.Customer Load= ?
2.Zoom IN= ?
3.Zoom Out= ?


from another form methods like zoomin(),Zoomout(),LoadCuastomer()