asp:CheckBox two-way binding problem

[FlorianS]

Hi I have a problem with binding parameters to an update command for an asp:SqlDataSource. The problem is when I am trying to bind a ASP:CheckBox field. I have this definition …………….

--------- I am getting this error; Cannot insert the value NULL into column 'PrivateLivingArea', table 'RentalProperty.dbo.HomeListing'; column does not allow nulls. UPDATE fails. The statement has been terminated. I know what it means but I can not figure out how to bind this checkbox field to the query parameters

[minhpc_bk]

Hi there, The Eval method supports one-way (read-only) binding, here there are two options: + You can use the Bind method which supports two-way databinding instead of the Eval, you can read more about this in MSDN[^]. + You can create a handler for the Updating event of the SqlDataSource control, in the method you can query the value of the check box and pass it to the input paramaters of the command.