Cant see HTMLPlaceHolder in RadWindow

[yohai]

Hi,

I've created a new silverlight project and add:

<UserControl xmlns:telerik="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls"  xmlns:telerikNavigation="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Navigation"  x:Class="SilverlightApplication2.Page"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Width="400" Height="300">
    <Grid x:Name="LayoutRoot" Background="White">
        <telerikNavigation:RadWindow Name="RadWindow1" Width="600" Height="600" Header="Test" >
            <telerik:RadHtmlPlaceholder Name="RadHtmlPlaceholder1" SourceUrl="http://www.google.com/"></telerik:RadHtmlPlaceholder>
        </telerikNavigation:RadWindow>
    </Grid>
</UserControl>

and in the code file i add:

public partial class Page : UserControl
    {
        public Page()
        {
            InitializeComponent();

            RadWindow1.Show();
            RadWindow1.LocationChanged += new RoutedEventHandler(RadWindow1_LocationChanged);
        }

        void RadWindow1_LocationChanged(object sender, RoutedEventArgs e)
        {
            RadHtmlPlaceholder1.InvalidateArrange();
        }
    }

when i run the application i see the window but i don't see the htmlplaceholder, why?
if i copy the htmlplaceholder markup outside the radwindow i see google web site.

what am i missing?

[Valentin.Stoychev]

Hi yohai,

You need to open the RadWindow after the page has been loaded. Here is the modified code:

public Page()
        {
            InitializeComponent();

            Loaded += new RoutedEventHandler(Page_Loaded);

        }

        void Page_Loaded(object sender, RoutedEventArgs e)
        {
            RadWindow1.Show();
            RadWindow1.LocationChanged += new RoutedEventHandler(RadWindow1_LocationChanged);
        }

All the best,
Valentin.Stoychev
the Telerik team

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[yohai]

Hi,

thanks for the quick replay...

I've done what you said and i am having VERY strange behavior with the controls,
this is my user control xaml file:

<UserControl xmlns:telerik="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls"  xmlns:telerikNavigation="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Navigation"  x:Class="SilverlightApplication2.Page"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Width="400" Height="300">
    <Grid x:Name="LayoutRoot">
        <telerik:RadHtmlPlaceholder Name="RadHtmlPlaceholder2" SourceUrl="WebForm1.aspx"></telerik:RadHtmlPlaceholder>
        <telerikNavigation:RadWindow Name="RadWindow1" Width="600" Height="600" Header="Test" >
            <telerik:RadHtmlPlaceholder Name="RadHtmlPlaceholder1" SourceUrl="http://www.google.com/" HorizontalAlignment="Stretch"></telerik:RadHtmlPlaceholder>
        </telerikNavigation:RadWindow>

    </Grid>
</UserControl>

and this is the code file:

using System;
using System.Windows;
using System.Windows.Controls;

namespace SilverlightApplication2
{
    public partial class Page : UserControl
    {
        public Page()
        {
            InitializeComponent();

            Loaded += new RoutedEventHandler(Page_Loaded);
        }

        void Page_Loaded(object sender, RoutedEventArgs e)
        {
            RadWindow1.Show();
            RadWindow1.LocationChanged += new RoutedEventHandler(RadWindow1_LocationChanged);
        }

        void RadWindow1_LocationChanged(object sender, RoutedEventArgs e)
        {
            RadHtmlPlaceholder1.InvalidateArrange();
        }
    }
}

 
Please look in this image:
Running Sample

you can see that i have 2 HtmlPlaceHoder, 1 outside (before) the RadWindow and 1 inside the RadWindow.
i only see the second HtmlPlaceHoder(Google site) in the boundaries of the first HtmlPlaceHolder even when i moving the window around.
if i put the first HtmlPlaceHoder AFTER the RadWindow, I can't see the second HtmlPlaceHoder just as i have in the beginning before i changed the code.

I am testing your product for our company,  we need to build a very BIG MDI environment website,
and we want to have sliverlight as our container for the MDI environment, and all the pages will by ASP.NET inside silvelight.
So this is the main feature that we need from your product.

Any help would be appreciate,

Thanks
Yohai

[Valentin.Stoychev]

Hello yohai,

The problem in this setup is that you can not overly the HtmlPlaceholder with a RadWindow. This is a limitation in the HtmlPlaceholder control. The reason for this is that the HTML placeholder needs be rendered _over_ the whole Silverlight application in order to display the HTML content. The only workaround is to hide the HTMLPlacehiolder that is not in the window when the window move over it.


Sincerely yours,
Valentin.Stoychev
the Telerik team

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