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Delete Row from Child Table

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GridView
This is a migrated thread and some comments may be shown as answers.
Richard Harrigan
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Richard Harrigan asked on 07 Jul 2010, 09:35 PM
Hi,

I am using the following code to Delete a row from  the RadGridView. This works for the first level in the hiarchy.  However, on the second level the SelectedItem == null. 

==================================

this

 

 

.AddHandler(UIElement.KeyDownEvent, new KeyEventHandler(MouseDownOnCell), true);

 

private

 

 

void MouseDownOnCell(object sender, KeyEventArgs args)

 

 

  

 

    if

 

 

(args.Key == Key.Delete && this.RadGridView1.SelectedItem != null)

 

    {

 

 

        MyDataContext.DomainContext.Customers.Remove(RadGridView1.SelectedItem as Customer);

 

    }

 

 

 

 

 

}

 

========================================

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Milan
Telerik team
answered on 13 Jul 2010, 07:54 AM
Hi Richard Harrigan,

RadGridView has a built-in support for record deletion - when the Delete key is pressed all selected items will be deleted. Depending on your scenario this functionality might not work - if the hierarchy items are items that are retrieved using an Ria Services associations the built-in functionality will not work since the list of associations does not support remove operations ( it is not IList).

Fortunately one of my colleagues has created a sample where with a little bit of tweaking the deleted operation is enabled for child grids as well.

Could you please take a look at the attached sample and determine if the proposed solution can be used in your scenario.


Sincerely yours,
Milan
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Richard Harrigan
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answered on 13 Jul 2010, 09:45 PM
Hi Milan,

I'm sorry but I could't get it to compile.  Is it possible that you point out the specific changes made to enable delete and insert child row from the Insert and Delete keys.

Thanks
Rich
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Milan
Telerik team
answered on 14 Jul 2010, 02:43 PM
Hi Richard Harrigan,

Unfortunately the changes are not trivial. Could you please paste some of errors? 


Greetings,
Milan
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Richard Harrigan
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Milan
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Richard Harrigan
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