[mrark]

How can I use a single textbox
In my Simple calculator

i use there text box 1st for a 2nd for B and 3rd for answer

i assign 1st text box for 1,3,5,7,9
2nd text box for 2,4,6,8
i cant not and 1 and 3 when i give 3 it over rides 3 can u help me