how to calculate in textbox how many asp.net checkboxes are checked ?

Sumit

New member
i have 3 asp.net standard checkbox control and textbox id i chck 1 and 3 then in textbox how to calculate how many checkboxes are checked if i checked 1 then textbox result is 1 if i check 1,2 the textbox result is 2 if i check all checkboxes then the result id 3

how to do this in vb.net .....
 
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