internal override void OnBeginningEdit(DataGridItemCancelEventArgs e)
{
object item = e.Item;
// We throw instead of setting e.Cancel to True because we do not want to give the developer the chance to set it back to False.
if (item is EmptyDataItem)
{
throw new DataGridException("Cannot begin edit on an empty data item or on an item that has a pending commit async operation.");
}
DataGridPageManagerBase pageManager = this.RootGroup.GetVirtualPageManager();
if (pageManager.IsAsyncCommitQueuedForItem(item))
{
throw new DataGridException("Cannot begin edit on an empty data item or on an item that has a pending commit async operation.");
}
base.OnBeginningEdit(e);
}
