We recently upgraded our solution to the Q2 2010 Sp1 version and now whenever the SelectedItem or SelectedIndex of our combo boxes is changed we recieve a null reference exception with the following call stack:

i need to set binding of itemmapping columns using converter for radchart..how would i do that?

Hi,

I'am a UX Designer (very lil or no coding experience ) using Expression Blend. I have a WPF GridView and trying to databind with some sample data . I need to embed images in one of the columns, have "image" has one of the data objects and pointing to a image folder in the solution. The images show up in the data binding dialog box (please see attachment) but do not appear in the Gird.

Don't know if it's the path to the images or something else is wrong, Appreciate any help.

Here's the code:
<telerik:RadGridView x:Name="radGridView" Margin="0,-2,0,0" VerticalAlignment="Top" ItemsSource="{Binding Collection, Mode=OneTime}" AreRowDetailsFrozen="{Binding Collection[0].Collection[0].Collection[0].Collection, Mode=OneTime}" RowDetailsVisibilityMode="VisibleWhenSelected" Height="380.337" ContextMenu="{Binding Collection, Source={StaticResource ContextMenu}}" telerik:Theming.Theme="Transparent" telerik:StyleManager.Theme="Transparent" ShowGroupPanel="False" ActionOnLostFocus="None" EditTriggers="None" EnableRowVirtualization="False" IsSynchronizedWithCurrentItem="False" Background="Transparent"  GridLinesVisibility="None">
                                <telerik:RadContextMenu.ContextMenu>
                                    <telerik:RadContextMenu DataContext="{Binding Source={StaticResource ContextMenu}}" ItemsSource="{Binding Collection}"/>
                                </telerik:RadContextMenu.ContextMenu>
                                <telerik:RadGridView.RowDetailsTemplate>
                                    <DataTemplate>
                                        <telerik:RadTabControl Background="#FF3E444A">
                                            <telerik:RadTabItem Header="Composition">
                                                <Grid>
                                                    <Image HorizontalAlignment="Left" Width="950.5" Source="Images/Composition.jpg" Stretch="Fill" Height="167" Margin="3,3,3,3" ToolTip="loremipsum"/>
                                                </Grid>
                                            </telerik:RadTabItem>
                                            <telerik:RadTabItem Header="Attribute Detail">
                                                <Grid>
                                                    <Image HorizontalAlignment="Left" Width="950.5" Source="Images/Composition.jpg" Stretch="Fill" Height="167" Margin="3,3,3,3" ToolTip="loremipsum"/>
                                                </Grid>
                                                </telerik:RadTabItem>
                                               <telerik:RadTabItem Header="Account Detail">
                                                <Grid>
                                                    <Image HorizontalAlignment="Left" Width="950.5" Source="Images/Composition.jpg" Stretch="Fill" Height="167" Margin="3,3,3,3" ToolTip="loremipsum"/>
                                                </Grid>
                                            </telerik:RadTabItem>
                                            <telerik:RadTabItem Header="Location Detail">
                                                <Grid>
                                                    <Image HorizontalAlignment="Left" Width="950.5" Source="Images/Composition.jpg" Stretch="Fill" Height="167" Margin="3,3,3,3" ToolTip="loremipsum"/>
                                                </Grid>
                                            </telerik:RadTabItem>
                                        </telerik:RadTabControl>
                                    </DataTemplate>
                                </telerik:RadGridView.RowDetailsTemplate>                      
                            </telerik:RadGridView>

Hello!
I need an event for changing the docking orientation of a RadPane.
The purpose of it is that I need to have a layout if the RadPane is docked left or right and a different layout if it is docked on top or bottom, and I want to rearrange it (or at least change the orientation of the content)  whenever the user feels to modify the position of the pane.
How can I achieve this?

Thank you!
Roxana

Hi,

as I noticed RadDataPager now supports "Unbound Mode".
This in Fact means that is initially bound to Telerik.Windows.Controls.RadDataPager.UnboundPagerSource

And this broke my app - before I checked if I have to bind via
if(rdpMyPager.Source == null) //needs to bind

But now the Source is never null. A check with
if(rdpMyPager.Source is Telerik.Windows.Controls.RadDataPager.UnboundPagerSource)
also fails - Protection level doesn't allow access.
I also found no property like "IsBound / IsUnbound".

I could (in this case) work around the problems since I know what it is bound to.
But this is not always possible.

So is there a way to check if the pager is bound in a way like i did before with ...Source==null?

Manfred

Hello,

I have a RadGridView for which the columns are generated dynamically at run-time.

I need to have the columns be as wide as they need to be for the cell's content but wrap on the column headers so the header text does not define the column width.

I have seen a similar post on these forums but the columns were defined in the Xaml, and the headers contained TextBlock.

In my case, the columns are created during the AutoGeneratingColumn event. As for the headers they are created this way:


Where GetHeaderName returns a string.

Hi..
I'm trying to use the Transition Control with the RadPanel.. but I get this error

Specified element is already the logical child of another element. Disconnect it first.

Any ideas what I'm doing wrong?

thanks

 

 

 

<Grid VerticalAlignment="Stretch" Grid.Row="1" Margin="3,10,3,3">

 

 

 

 

 

<telerik:RadTransitionControl x:Name="TransitionControl"

 

 

 

Grid.RowSpan="2" Grid.ColumnSpan="2" Grid.Row="1" Grid.Column="0"

 

 

 

HorizontalAlignment="Stretch" VerticalAlignment="Stretch"

 

 

 

Content="{Binding SelectedItem, ElementName=radPanelBar}"

 

 

 

 

Duration="10">

 

 

 

 

</telerik:RadTransitionControl>

 

 

 

 

 

 

<Border BorderBrush="#000000" BorderThickness="1" Background="#d5d8dc" Margin="0 0 0 0">

 

 

 

 

 

<telerik:RadPanelBar VerticalAlignment="Stretch" x:Name="radPanelBar" telerikControls:StyleManager.Theme="Windows7" ExpandMode="Multiple">

 

 

 

 

<telerik:RadPanelBarItem IsExpanded="True" BorderBrush="#FF000019">

 

　

　

 

 

 

<telerik:RadPanelBarItem.Header>

 

 

 

 

<StackPanel Orientation="Horizontal" Margin="0 ,-3,0,0">

 

 

 

 

<Image Source="/CRM;component/Images/clipboard.png" Margin="0,2,0,0" Height="32" Width="32" />

 

 

 

 

<TextBlock Text="Training Sheet" FontFamily="Verdana" Foreground="Blue" FontSize="14" Margin="5 4 5 5" />

 

 

 

 

</StackPanel>

 

 

 

 

</telerik:RadPanelBarItem.Header>

 

We are using a telerik radgrid and would like to be able to expand - and then load - the details for each row on demand. On the radgridView, we added a ToggleDetailsColum, like this:

        <telerik:RadGridView.Columns>
              <telerik:GridViewToggleRowDetailsColumn />

Then we try to capture the IsExpandedChanged Event on the gridviewRow. I.e. this event:
IsExpandedChanged (Occurs when GridViewRow changes its GridViewRow.IsExpanded state)


But what happens is that everytime we click on the rowdetailsexpander (+), the system throws an exception:
A first chance exception of type 'System.ArgumentException' occurred in Telerik.Windows.Data.dll
And the event never seems to occur.

Is this a bug in 2010.2.812.40?

hi!,

I would like to know if it's possible to show a radWindow Dialog into page (xbap)? also is it possible to show window alert?

thanks

i need to set tooltip for radialrange in radialscale ...right now i am doing it by setting property like

 rs.Ranges.Add(New RadialRange With {.Background = Brushes.Blue, .Min = 0, .Max = 200, 
.StartWidth = 0.1, .EndWidth = 0.1, .TooltipFormat = "critical {0:F0}", .Tooltip = "critical"}})

but couldnt get to show tooltip with this..please help me out

Thanks,

Kapil Garg