How do you Add Mouse Events to Child Grid in CodeBehind

[Doug]

So, I figured out how to create the Child grid int he code behind, but now I need to have a click event on the Child grid rows. With the following code I get a "Handler type is mismatched" on the order.AddHandler line.

Any help on how to get this to work?

Thanks,

Doug

    private void rgvPatientImages_DataLoading(object sender, Telerik.Windows.Controls.GridView.GridViewDataLoadingEventArgs e)
    {
        GridViewDataControl dataControl = (GridViewDataControl)sender;

        if (dataControl.ParentRow != null)
        {
            dataControl.BorderThickness = new Thickness(0, 1, 0, 1);
            dataControl.GridLinesVisibility = GridLinesVisibility.None;
            dataControl.CanUserFreezeColumns = false;
            dataControl.ShowGroupPanel = false;
            dataControl.AutoGenerateColumns = false;
            dataControl.ChildTableDefinitions.Clear();
            dataControl.IsReadOnly = true;
            dataControl.SelectionMode = SelectionMode.Single;
            dataControl.SelectionUnit = GridViewSelectionUnit.Cell;

            GridViewDataColumn customerId = new GridViewDataColumn();
            customerId.Header = "Customer Id";
            customerId.DataMemberBinding = new Binding("CustId");
            customerId.DataType = typeof(int);
            dataControl.Columns.Add(customerId);

            GridViewDataColumn order = new GridViewDataColumn();
            order.UniqueName = "OrderIdId";
            order.Header = "Order Id";
            order.DataType = typeof(int);

            order.AddHandler(MouseLeftButtonDownEvent, new EventHandler<MouseButtonEventArgs> (orderId_MouseLeftButtonUp));
            dataControl.Columns.Add(order);
     }
}

    private void orderId_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
    {
        object ID = ((Button)sender).CommandParameter;

        CustomerOrder NewWindow = new CustomerOrder();
        NewWindow.orderId = Convert.ToInt32(sender.ToString());
        NewWindow.Show();
        this.Close();
    }