Determine what was clicked

Andy Webster

I have a form with a data bound DataGridView control, an OK button and a Cancel button. The data source for the grid is a dataset which I load from an XML file when the form loads and save back to the XML file when the user clicks OK.
Everything works fine unless the user is adding a new row and has not completed some mandatory columns but then attempts to click cancel.
Before the click event for the cancel button is fired the datagridview attempts to validate the row being added and fires the datagridview data error event due to the missing mandatory fields.
How can I determine that the user is trying to cancel before the click event for the cancel button has fired? I want to add an if statement into the datagridview dataerror event handler that determines if the user is trying to cancel and if so ignores the error.
How can I determine which control, ie the cancel button, was clicked before the click event has fired?
Thanks in advance for any offers of help with this
Regards
Andy

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Nilanka Dharmadasa16y ago
Accepted answer
Hi Andy,

You can check whether the cancel button has got the focus. Following code will help to check that.

        private void dataGridView1_RowValidating(object sender, DataGridViewCellCancelEventArgs e)
        {
            if (this.ActiveControl.Name.Equals("button1"))
            {
                //Do something.
            }
            else
            {
            }
        }

Replace 'button1' with the name of your Cancel button.

I hope my code will help you.

If you find my answer helpful, please do not forget to tick 'Do you like this answer' checkbox.
0
Nilanka Dharmadasa16y ago
Hi Andy,

Then can you please spend a few seconds to tick 'Do you like this answer' checkbox.It helps me friend.
0
Andy Webster16y ago
Niki
Thank you very much, exactly what I needed
Regards
Andy
0
Sam Hobbs16y ago
I don't know but I have a guess. Try handling the MouseClick Event for the cancel button. When I try it, the handler executes only after the left button is up, but that might be soon enough. If not, then the next thing I would try is to handle the mouse down event. I don't see the mouse down event in the properties of the button control, but you can probably add a handler by coding the setting of the handler yourself. If you need help with that, first try handling the MouseClick Event for the cancel button.
0