I would like to add a Table of Contents from code, is there documentation on how to do this?

Hi,

how to find a DataFormField  <telerik:DataFormComboxField> on EditEnded?
I have to Change the value by code and have to find this field!

Thanks
Best Regards
Rene

I have a solution where I am using the implicit themes and have a pallete switchers similar to what your Executive Dashboard is using. I have set up different gauge properties to switch when I click the theme toggle button. But i can not get the GaugeRange backgrounds to change. In fact they don't even display. Here is some sample code


You will see I have set up DynamicResources for all of the Tick Backgrounds and they work perfectly. But the GaugeRange backgrounds do not work at all. In fact they do not show up at all. Is there something special I need to do to set DynamicResources on these?

I'd like to have two top-level TreeView items, which are not related to bindings. Simple hard coded top-level items. However, those items will have children. And those children will be from my VM.

Something like this:


However, this doesn't seem to be allowed. How can I accomplish this? Essentially, my VM has two collections of stuff, and I want to show both in a single tree view, but without introducing a bunch of stuff into my view model.

Hi,

I have a MVVM application which showed a strange behavior.
To reproduce it I "switched to event mode" which has:


In code behind I do nothing more than:



When I hit ESC twice - editing is ended and the "old values" are displayed - but the row still displays "invalid" (red exclamation mark, red background).

What I expect is that the row becomes valid since it has the original (valid) values after "CancelEdit" (Hitting ESC twice).

The second problem (in debug) I get a "ArgumentNullException" (Parameter instance must not be null) when I add a row without entering anything hit ESC twice.

Manfred

Hi,
My gridview sort works great on mouse click but there is no response on touch input. Can you please tell me how to enable it for touch input?

Thanks.

Hello,

I'm trying to export my GridView to csv and I'm getting the following error: Please provide writable stream for export!

   bei Telerik.Windows.Controls.GridView.GridViewDataControl.Export(Stream stream, GridViewExportOptions options) in c:\TB\221\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\Exporting\GridViewDataControl.Exporting.cs:Zeile 17.
   bei Data_Transfer_GUI.GridViewExportProvider.<>c__DisplayClass6.<Export>b__0()
   bei System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   bei MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)


This is my code:



The error occurs at this line:


When I hover the stream and open the tooltip I see that
stream.Length' threw an exception of type 'System.ObjectDisposedException'

Second thing is, that I can't understand why the InvalidOperationException is raised. The GridView is on the UI-Thread. It should be not necessary to invoke here. The export is called from a simple command which is called from the UI--Thread.

Do you have an idea why this all happens?

Thank you very much!
Kind regards

Hi,

I do have radautocompletebox with the dropdown button.

On clicking the button and on focus of the radautocomplete box, the dropdown is supposed to open.
The issue is when I select an item from the dropdown opened by button click and select an item from it, the selected item automatically sets to the text box inside the radautocompletebox thereby focusing on the same and the onFocus method gets called which is opening dropdown again which is not required.
This process happens so rapidly that two values (one from each dropdown) gets selected on a single click.
Kindly let me know in case if I am going wrong somewhere.

Below is the xaml code:
<ScrollViewer VerticalAlignment="Top" HorizontalScrollBarVisibility="Disabled" Grid.Column="0" VerticalScrollBarVisibility="Auto" Height="40" Width="186"  >
                        <telerik:RadAutoCompleteBox WatermarkContent="{Binding Path=WatermarkContent}"  HorizontalAlignment="Left" Name="radDeseaseCategoryAutoCompleteBox" Width="186"
                                    SelectionMode="Multiple"
                                    FilteringBehavior="{StaticResource EmptyTextFilteringBehavior}"
            TextSearchMode="Contains"
            TextSearchPath="Name" MinHeight="35"
                                     AutoCompleteMode="Suggest"
                                     ItemsSource="{Binding Path=DiseaseCategoryCollection, Source={StaticResource reportDropdownInfo}}"
                                     SelectedItems="{Binding Path=SelectedDiseaseCategoryCollection, Mode=TwoWay, ValidatesOnDataErrors=True, NotifyOnValidationError=True}"
                                     GotFocus="DeseaseCompleteBoxGotFocus" LostFocus="DeseaseCompleteBoxLostFocus"
                                    >
                            <telerik:RadAutoCompleteBox.DropDownItemTemplate>
                                <DataTemplate>
                                    <TextBlock Text="{Binding Name}" Width="190"/>
                                </DataTemplate>
                            </telerik:RadAutoCompleteBox.DropDownItemTemplate>
                            <telerik:RadAutoCompleteBox.BoxesItemTemplate>
                                <DataTemplate>
                                    <TextBox Text="{Binding Name}" IsEnabled="False" TextWrapping="Wrap" Width="140" MaxWidth="140"  Background="White" />
                                </DataTemplate>
                            </telerik:RadAutoCompleteBox.BoxesItemTemplate>
                        </telerik:RadAutoCompleteBox>
                    </ScrollViewer>
                    <telerik:RadButton Grid.Column="1" IsTabStop="False"
                               Click="DeseaseRadButtonClick"
                               VerticalAlignment="Top" HorizontalAlignment="Right"
                               Width="15"
                               Height="40" Grid.Row="1">
                        <Path Data="M0,0 L4,0 L4,4 z" Fill="Black" HorizontalAlignment="Right" Height="5" Stretch="Fill" VerticalAlignment="Center" Width="5" UseLayoutRounding="False" RenderTransformOrigin="0.5,0.5">
                            <Path.RenderTransform>
                                <RotateTransform Angle="135" />
                            </Path.RenderTransform>
                        </Path>
                    </telerik:RadButton>

Here is the method in code behind. .

 private void MechOfActRadButtonClick(object sender, RoutedEventArgs e)
        {
            radMecofActionAutoCompleteBox.Focus();
        }

        private void RadMecofActionAutoCompleteBoxGotFocus(object sender, RoutedEventArgs e)
        {
            radMecofActionAutoCompleteBox.WatermarkContent = "";
            radMecofActionAutoCompleteBox.Populate(radMecofActionAutoCompleteBox.SearchText);
        }

I'm using Expression Blend and I'm editing my ApplicationButtonStyle.  I cannot figure out how to change the color of the text inside the Grid that contains the ContentPresenter, TextBlock, and Image.  Changing the Background/Foreground colors in TextBlock or ContentPresenter doesn't work.  What I'm trying to do is have my ApplicationButton tab look the same as a RadRibbonTab, but I can't figure out the Context (or text) color part.