How to change the committing value in dataGridView?

I have a dataGridView that has a column with checkb开发者_如何学运维oxes. Whenever the user clicks on a checkbox I use the event CellContentClick where I process the necessary action.

But now, in some cases, I would like the value not to be committed (the checkbox to be unchecked). Any idea how to do this?

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You might want to look at the CellValidating event. So something like this:

void dataGridView1_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
{
   object new_value = e.FormattedValue;
   // Do something
   // If you dont like what you did, cancel the update
   if(nope_didnt_like_it)
   {
      e.Cancel = true;
   }
}