CODEWITHSUNDEEP
.netdatagridview
rabejens
rabejens

Reputation: 8142

Is there an event on a DataGridView that fires when multiple rows are deleted?

I have a DataGridView in my application where the user is allowed to select multiple rows. The user can also delete them by pressing Del. Now, the DataGridView represents entries from a database and I want to show a confirmation dialog box before actually deleting the rows.

The catch is: I only found a UserDeletingRow event that fires on each separate row to be deleted, so when the user selects 100 rows, I get 100 events. Displaying the confirmation there would then mean that the user has to confirm 100 single deletions.

The only thing I can think of now is to prevent deleting in the UserDeletingRow event as per e.Cancel = true and set up a separate one that fires when the user presses the Del key and figures out what is selected then.

Did I just not hit the correct keywords when searching for this issue, or is there really no event in .net that fires when deleting multiple rows?

Upvotes: 0

Views: 606

Answers (1)

Morris
Morris

Reputation: 156

You can intercept the pressing of the Del key, and handle it yourself. When you set up the DataGridView, you need to assign an event handler for key presses:

grid.KeyDown += new Forms.KeyEventHandler(grid_KeyDown);

The handler can get confirmation from the user:

private void grid_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyCode != Keys.Delete)
        return;

    e.Handled = true; // Very important to prevent the Del key being handled elsewhere!

    // Ask user to confirm here; return if they back down...

    DeleteSelectedRecords(); // this is your own method
}

Upvotes: 2

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