In my Grid, i have 4 textboxes in item template.
Now i want apply one calculation formula on these textboxes.
I need to auto calculate txt4 value, when values in txt1, txt2, txt3 changed.
My formula is:
txt4 = txt1 + txt2 - txt3
How can i do this, on which event of grid, or on each textbox ontextchanged event.
Any sample code is helpful.
Thanks in advance.