How To Capture RadPane Closing?

[RoadWarrior]

What is the appropriate event to use to determine when a RadPane has been closed?  I have some very resource intensive content that needs to be cleaned up immediately whenever its RadPane container is closed.  So far I have been disappointed to find that none of the following events are triggered when the Pane is closed from either the RadPaneGroup or ToolWindow:

• Docking.PaneStateChange
• Docking.ItemContainerGenerator.ItemsChanged
• Docking.ElementCleaned
• Docking.ElementCleaning

Please advise on how to accomplish this.

[Miroslav Nedyalkov]

Hi Rick,

 The following events are called during the load layout process:

• Docking.ElementCleaned
• Docking.ElementCleaning

The Docking.PaneStateChange event is fired when the state of the pane is changed - this doesn't include when closed (but you are right that it should be called as this is a change of the state).

In order to find out that a pane was closed you could hook-up to the Close event of the Docking control. It is fired when a was closed.

Hope this helps!

Greetings,
Miroslav Nedyalkov
the Telerik team

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[Clinton]

Hi,

How do I detect the Pane that was closed or PreviewClosed before it is destroyed?

private

 

 

void RadMainDockClose(object sender, Telerik.Windows.Controls.Docking.StateChangeEventArgs e)

This sender comes back as a RadDocking and not a RadPanel.

Cheers

Clinton

 

[Yana]

Hi Clinton,

You should check Panes property of the StateChangeEventArgs object to find which pane is closed.

Kind regards,
Yana
the Telerik team