asp.net - How do I insert values into BIT datatype? -

we have checkbox on 1 of our forms.

if user checks box , clicks save button, have value of 1 or true inserted table.

if however, box not checked, rather inserting null, insert 0 or false.

any idea how solve this?

thanks alot in advance

how checking non null input:

insert mytable (mybitfield) values (case     when @mycheckboxparameter null     0     else 1)