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I am creating windows application using datagridview and chkbox, I am getting error from cell values calculation time.

rc = Convert.ToBoolean(frm.checkBox17.Checked = (bool)dataGridViewX1.CurrentRow.Cells[22].Value);

How to solve above error any one give me some ideas.

What I have tried:

System.InvalidCastException: 'Specified cast is not valid.'
Updated 22-Jun-22 7:47am

1 solution

That's an assignment, not a comparison - so the result that you are converting with ToBoolean is probably not what you expected. Probably, you meant "==" rather than "=".

But the problem is almost certainly the cast of the Value property to a bool - use the debugger to find out exactly what the cell contains, and then start look for what it should be. Chances are you are looking at the wrong column, or a empty row at the bottom of the DGV.

And your shouldn't really be using the DGV itself, but the DataSource from which it was filled; and not using "magic numbers" like "22" anyway.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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