Filtering using FilterDescriptor opens All the Nodes

[gans]

I have a problem where after applying the Filter, it opens up all the nodes. 

I am using FilterDescriptor.

We have a Huge Tree and we don't want the Tree and its children  to open after applying the Filter. Any idea how to stop it from opening after applying the Filter?

I am not able to attach the project, but will attach the screen shot. 

Here is code snippet. 

private void RadContextMenu_ItemClick(object sender, Telerik.Windows.RadRoutedEventArgs e)

        {

            if ((e.OriginalSource as RadMenuItem).Header.Equals("Show Spain"))

            {

                FilterDescriptor descriptor = new FilterDescriptor();

                descriptor.Member = "Country";

                descriptor.Operator = FilterOperator.IsEqualTo;

                descriptor.Value = "Spain";

                this.RadTreeListView1.FilterDescriptors.Add(descriptor);

            }

 

            CompositeFilterDescriptor mainFilter = new CompositeFilterDescriptor();

 

            if ((e.OriginalSource as RadMenuItem).Header.Equals("Show England"))

            {

                FilterDescriptor descriptor = new FilterDescriptor();

                descriptor.Member = "Country";

                descriptor.Operator = FilterOperator.IsEqualTo;

                descriptor.Value = "England";

                mainFilter.FilterDescriptors.Add(descriptor);

                this.RadTreeListView1.FilterDescriptors.Add(mainFilter);

            }

            if ((e.OriginalSource as RadMenuItem).Header.Equals("Show England - France"))

            {

                mainFilter = new CompositeFilterDescriptor();

                mainFilter.LogicalOperator = FilterCompositionLogicalOperator.Or;

                FilterDescriptor descriptor = new FilterDescriptor();

                descriptor.Member = "Country";

                descriptor.Operator = FilterOperator.IsEqualTo;

                descriptor.Value = "England";

 

                mainFilter.FilterDescriptors.Add(descriptor);

                descriptor = new FilterDescriptor();

                descriptor.Member = "Country";

                descriptor.Operator = FilterOperator.IsEqualTo;

                descriptor.Value = "France";

 

                mainFilter.FilterDescriptors.Add(descriptor);

 

                this.RadTreeListView1.FilterDescriptors.Add(mainFilter);

            }

 

            if ((e.OriginalSource as RadMenuItem).Header.Equals("Clear Filter"))

            {

                this.RadTreeListView1.FilterDescriptors.RemoveAt(0);

            }

             

        }




[Yoan]

Hello,

We have already answered to the forum thread you started on the same topic.

Regards,
Yoan
Telerik