[WPF] DataGrid and Refresh during AddNew o EditItem

Hi,

in my DataGrid, the user can add a new row with a button that add an empty item in collection that is in bind with DataGrid.

The first column of DataGrid is a CheckBox Column, if the user add a NewRow and click on CheckBox Column for select/deselect all items I have an error:

"'Refresh' non consentito durante una transazione AddNew o EditItem."

My code is:

private void HeadCheck(object sender, RoutedEventArgs e, bool IsChecked)

{

var items = dgPlan.Items.OfType();

foreach (var item in items)

{

item.IsChecked = IsChecked;

}

try

{

dgPlan.Items.Refresh();

}

catch (Exception ex)

{

dgPlan.CancelEdit(DataGridEditingUnit.Row);

dgPlan.Items.Refresh();

}

I added a try-catch but the error there is still.

Thanks.