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How can I find the document in DocumentHost programmatically ?

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Docking
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Massimiliano Sorce
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Massimiliano Sorce asked on 04 Feb 2010, 03:57 PM
The RadDocking control has properties and methods for working with Tabbed Documents quickly ?
Close/Open etc... Document programmatically.
I would like to perform a LINQ query (or for/foreach) to find the document that implements a particular interface, this is possible?

Example :

private IDebugEditor GetDebugEditor() {  
    var res = from w in radDocking.Documents where w is IDebugEditor select w;  
    if (res.Count() != 0)  
        return (IDebugEditor)res.First();  
    return null;  
}

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Miroslav Nedyalkov
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answered on 04 Feb 2010, 04:49 PM
Hello Massimiliano,

 There is no particular functionality for the DocumentPanes, but you could get all the panes and filter only the panes in the DocumentHost. Here is an example:

dock.Panes.Where(pane => pane.IsInDocumentHost)
will yield all the panes in the DocumentHost.

Hope this helps.

Sincerely yours,
Miroslav Nedyalkov
the Telerik team

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Massimiliano Sorce
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answered on 05 Feb 2010, 08:23 AM
Hi Miroslav,

thanks for you help, how do I remove a pane at runtime ?

To add I used this method : (DebugEditor is a RadDocumentPane)

((DocumentHost)dock.DocumentHost).AddPane(new DebugEditor()); 

it's correct ?
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Miroslav Nedyalkov
Telerik team
answered on 05 Feb 2010, 01:33 PM
Hello Massimiliano,

 Is this code working correctly? In my opinion the DocumentHost property is expected to of type RadSplitContainer, so it should always throw InvalidCastException. (If you added a DocumentHost control into the DocumentHost property, you shouldn't do that - the Docking control has one in its ControlTemplate and it expects a SplitContainer in this property).

You might us the following code for adding panes:

var dhContainer = dock.DocumentHost as RadSplitContainer;
var documentHost = dhContainer.Parent as DocumentHost;
documentHost.AddPane(new DebugEditor());
You could use the method of the RadPane RemoveFromParent. It removes the pane wherever it is at this time.

Hope this helps.

All the best,
Miroslav Nedyalkov
the Telerik team

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Massimiliano Sorce
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answered on 05 Feb 2010, 04:53 PM
Hi Miroslav,

I tried using your code but I get this ArgumentException :

This pane cannot be removed from parent, because it doesn't have one! 

then I thought it was wrong inherit the RadPane and I tried to add a new RadPane

var dhContainer = dockSite.DocumentHost as RadSplitContainer; 
var documentHost = dhContainer.Parent as DocumentHost; 
//documentHost.AddPane(new DebugEditor()); 
documentHost.AddPane(new RadPane()); 

but has the same ArgumentException.

Thank you in advance.
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Miroslav Nedyalkov
Telerik team
answered on 08 Feb 2010, 11:59 AM
Hi Massimiliano,

 I'm sorry, but the AddPane method of the DocumentHost is meant to be used when you need to move a pane from one place to the DocumentHost - not for adding new panes. I would suggest you to put a Name to a group in the DocumetHost and add the panes to it. Please refer to the attached example project.

Greetings,
Miroslav Nedyalkov
the Telerik team

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Massimiliano Sorce
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answered on 12 Feb 2010, 12:58 AM
Hi Miroslav,

thanks for your example, but I still have a problem :-)
I have a control that inherits from RadDocumentPane or RadPane and I have been added in the Docking when saving and loading the layout, the docking throwing an error.
Any idea to solve the problem ?

Yours sincerely,
Massimiliano

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Miroslav Nedyalkov
Telerik team
answered on 12 Feb 2010, 09:55 AM
Hi Massimiliano,

Set the SerializationTag attached property to all the panes should resolve the problem. If it doesn't help, please provide us with a sample project that reproduces the problem - this will help us find out what the problem is and provide you an appropriate solution.

Kind regards,
Miroslav Nedyalkov
the Telerik team

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Massimiliano Sorce
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