hi, my command button sets its function to get the sum of my daily income. And when i click it again the sum will become double (EVERY CLICK) so i want to my command button to WORK by only 1 CLICK.
example
10 + 10 = 20
when i click again my command button the
answer in the textbox becomes 40 and 60 and 80 and 100 ...
i want to limit it to 1 so that i will stay only on 20.
it is possible? help me please