RadDock and RadHtmlPlaceHolder

[Robbe Morris]

I am seeing strange drawing and lock up issues when attempting to move a pane that contains a RadHtmlPlaceHolder loaded with a url.  The url loads fine works properly until you try to dock the tab elsewhere.  Here is some of the relevant code:

 

<radDock:RadDocking.DocumentHost>

 

 

<radDock:RadSplitContainer>

 

 

<radDock:RadPaneGroup x:Name="MainDocumentGroup">

 

 

<radDock:RadDocumentPane Title="Topic Areas" Header="Topic Areas">

 

 

<radDock:RadDocumentPane.Content>

 

 

<TextBlock Text="Stuff"/>

 

 

</radDock:RadDocumentPane.Content>

 

 

</radDock:RadDocumentPane>

 

 

</radDock:RadPaneGroup>

 

 

</radDock:RadSplitContainer>

 

 

</radDock:RadDocking.DocumentHost>

 

#region

ArticleListControl Article Selected

void ArticleListControl_ArticleSelected(object sender, DataEventArgs<Article> e)

{

if (e.Item == null) return;

var window = new WebPageViewer(http://www.google.com); //sets private variable in WebPageViewer.

window.Name = "WebPageViewer" + Guid.NewGuid().ToString();

var pane = new RadDocumentPane();

pane.Name = "DocumentPane" + Guid.NewGuid().ToString();

pane.Title = e.Item.Description;

pane.Header = e.Item.Description;

pane.Content = window;

 

this.MainDocumentGroup.AddItem(pane,DockPosition.Center);

 

}

#endregion

<

UserControl x:Class="MyNamespace.WebPageViewer"

 

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

 

xmlns:telerik="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls"

 

xmlns:input="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Input">

 

 

<telerik:RadHtmlPlaceholder x:Name="HtmlViewer" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />

 

</

UserControl>

 

[Valentin.Stoychev]

Hi Robbe Morris,

RadHtmlPlacelohder is using the browser HTML engine to render itself, thus there maybe some flickering or parasite drawing when using with the docking control (or any other control that tries to update its location).

Unfortunately there is no workaround to this.

Greetings,
Valentin.Stoychev
the Telerik team

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