ExpandAllHierarchyItems in three level hierarchy

[Orit]

Hello

I have a three level hierarchy grid
and I want to open all the expand buttons at once (by a button click)
If I use 

RadGridview1.ExpandAllHierarchyItems()
it opens only the first level
how can I open the second level?
I tried to do this

 

RadGridview1.ChildrenOfType<

RadGridView>().FirstOrDefault().ExpandAllHierarchyItems();
but only the children of the first child are open.

Thanks

 

[Vlad]

Hello,

Please check this thread for more info:
http://www.telerik.com/community/forums/silverlight/gridview/calling-expandallhierarchyitems-doesn-t-expand-all-child-tables.aspx

The same approach can be used with WPF.

Sincerely yours,
Vlad
the Telerik team

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[Orit]

Thank you!

[Orit]

Sorry but just now I notice
that also if I open a row by clicking on its expand button
all his children are also open

what I need is-
if I click a button, all the rows will be open
but if I click an expand button of a row
only the row will be opened and not all it children too
 I tried to do this

bool bExpand = false;
       private void btnExpand_Click(object sender, RoutedEventArgs e)
       {
           try
           {
               bExpand = true;
               gvAccount.ExpandAllHierarchyItems();
           }
           catch (Exception ex)
           {
               MessageBox.Show(ex.ToString());
           }
       }

       private void RadGridView1_DataLoading(object sender, Telerik.Windows.Controls.GridView.GridViewDataLoadingEventArgs e)
       {

               var dataControl = (GridViewDataControl)sender;
               if (dataControl.ParentRow != null)
               {
                   if (bExpand)
                   {
                       dataControl.Loaded -= dataControl_Loaded;
                       dataControl.Loaded += dataControl_Loaded;
                   }
                   else
                   {
                       dataControl.Loaded -= dataControl_Loaded;
                   }
               }
       }

       void dataControl_Loaded(object sender, RoutedEventArgs e)
       {
           if (bExpand)
           {
               ((GridViewDataControl)sender).ExpandAllHierarchyItems();
           }
       }

but it doesnot work good

any solution for this?

Thanks

[Vlad]

Hello,

You can find an example application attached.

Regards,
Vlad
the Telerik team

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[Orit]

Thank you for the example
but I still dont use Q3 so I dont have the  GridViewToggleButton
do you have any solution for Q2 ?

[Vlad]

Hi,

With Q2 you can use ToggleButton instead GridViewToggleButton.

Greetings,
Vlad
the Telerik team

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[Orit]

I try to do this
var toggleButton = row.ChildrenOfType<ToggleButton>().FirstOrDefault();
but I get an error
The type or namespace name 'ToggleButton' could not be found (are you missing a using directive or an assembly reference?) 

 

 

[Milan]

Hi Orit,

ToggleButton is in the System.Windows.Controls.Primitives namespace of the System.Windows assembly.

Regards,
Milan
the Telerik team

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[Orit]

Thank you

I still hvae one question
I have a button that has to collapse all the rows
how can I do it?
again, the CollapseAllHierarchyItems
collapse only the first level.

[Pavel Pavlov]

Hi Orit,

Please try the following code:

private void Button_Click(object sender, RoutedEventArgs e)
{
    foreach (var grid in this.RadGridView1.ChildrenOfType<GridViewDataControl>())
    {
        grid.CollapseAllHierarchyItems();
    }
    this.RadGridView1.CollapseAllHierarchyItems();
}

You will need to add a using Telerik.Windows.Controls in order to use the ChildrenOfType extension method.

Regards,
Pavel Pavlov
the Telerik team

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