Hi,

I have populated the MultiColumnComboBox DropDown Items using a DataTable

I would like to preselect the SelectedItems onload, so that they are hilited in the DropDown Box, and the corresponding Display-values are shown in the select textbox.

Adding DataRows to the SelectedItems property seams to do the trick for the DropDown List, but the values are not shown in the select textbox.

How do I trigger the select textbox to be filled (with multible values)? 

/Brian

 

 

 

 

Hello.

 

I found something unknown while using the hierarchical menu.

Click the hierarchical menu and click the ESC or menu to hide the hierarchical menu.

I made it short as a gif, but I hope it helps you understand.

Attach the source. What is the problem.

Xaml

 

ViewModel

 

Model

 

 

Thanks.

 

Hi,

Below is my code snippet for RadComboBox that I am using:

<telerik:RadComboBox ItemsSource="{Binding xyz}"
                                                     IsEnabled="False"
                                                     IsEditable="False"
                                                     HorizontalAlignment="Stretch"
                                                     SelectedIndex="1" 
                                                     Width="Auto">

When I apply the below style to change foreground color when disabled, it is not working:

<telerik:RadComboBox.TextBoxStyle>
                                                        <Style TargetType="TextBox">
                                                            <Style.Triggers>
                                                                <Trigger Property="IsEnabled" Value="False">
                                                                    <Setter Property="Foreground" Value="Gray" />
                                                                </Trigger>
                                                            </Style.Triggers>
                                                        </Style>
                                                    </telerik:RadComboBox.TextBoxStyle>

 

This trigger only works when I set IsEditable-"True" and IsFilteringEnabled="True"

 

Is there any way that I can change the font color even when IsEditable-"False"?

 

Thanks,

Aanchal

In order to make the Slider handles "active" I have to click on a selection Thumb (start or end) then the handles become active and I can user them to increase/decrease incrementally.

Is this "by design"?  If so, is there a way to prevent this default behavior and always have the Handles "active" (clickable)?

Cheers, Rob.

I've been trying to use the ImageEditor's Hue and Saturation to accomplish the same task as Adobe's Color Channel Mixer but the operations are color channel specific and I was getting nowhere with it as I could potentially have Luminosity values above 1 which would cause issues with Saturation calculations.

Does anyone know if there is a .NET control or color management library that can be purchased or free that could accomplish the task of increasing/decrease individual color channels on an image?  I really only need the image as a "preview", and then use then save the R G B for use in another application.  RGB values are decimal but 0-100% but can be overdriven just like Adobe's Color Channel Mixer up to 500%  (adobe only goes up to 200%).

I've seen some sample code all C++ and "unsafe" code so wasn't too helpful ... either a .NET library or .NET control ... can anyone point me in a direction? 

Cheers, Rob.

 

 

I am trying to customize Insert hyperlink dialog. My goal is to apply hyperlink (navigationUri) from predefined list i.e. link to users available in system.

I am using WPF 5.0. I am not sure should I follow MEF approach or create usercontrol and implement functionality.

I found one old thread

Can I customize the default "Insert Hyperlink" dialog window. But I am facing following error

Cannot resolve dependency to assembly 'Telerik.Windows.Documents.Core, Version=2020.3.1019.40

 

Can you please guide me how to achieve this task.  

Hi,

I have some RadListbox inside a ScrollViewer and I would like to be able to scroll with the mouse wheel anywhere inside the scrollviewer.
I'm aware that the RadListBox has a ScrollViewer in his template that capture the MouseWheelEvent so I changed the template by the following.

<Style x:Key="UnscrollableRadListBoxStyle" TargetType="telerik:RadListBox" BasedOn="{StaticResource RadListBoxStyle}">
        <Setter Property="telerik:ScrollingSettingsBehavior.IsEnabled" Value="False"/>
        <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Disabled"/>
        <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Disabled"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="telerik:RadListBox">
                    <Grid>
                        <Border Padding="{TemplateBinding Padding}"
                                Background="{TemplateBinding Background}"
                                BorderBrush="{TemplateBinding BorderBrush}"
                                Margin="0"
                                BorderThickness="{TemplateBinding BorderThickness}">
                            <Border.InputBindings>
                                <KeyBinding Command="telerik:ListControl.SelectAllCommand" Key="A" Modifiers="Control"/>
                            </Border.InputBindings>
                            <ItemsPresenter/>
                        </Border>
                        <ContentPresenter x:Name="PART_DropVisualPlaceholder" Visibility="Collapsed" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

Now, the scroll works great, I can scroll with the mouse wheel everywhere. The problem is that when I drop an item inside one of the RadListBox, the DropVisualPlaceHolder appear at wrong place.

Do you have any idea of what I've done wrong ?

Thank you,

Etienne

Hi All,

Any Idea to dig More information on RadCartesianChart control. I have attached a sample graph(sampleBarGraphs.jpeg) snap for reference. As you can see in the snap it is a bar graph which different Activities like planned-131,completed-45 etc. So when I click on Planned Activity in the bar I need to dig more information on it  like a pop up which displayed some rad list items the count of these list is the Planned activity count in the bar graph.

Any samples solutions or documentation for reference to implement the sample graph using telerik controls/behavior's.

Thanks in Advance.

 

Hello. 
We have a need to execute some command when the window is fully loaded. In order to do that we want to be able to bind event ContentRendered to the command in view model.

What would be the best way to achieve this? As I understood there are three approaches:

- resolving view model from the condebehind and invoking the command

- interactivity library (additional dependancy)

- a combination of attached property and attached behavior

 

What is a recommended way to bind to the window event in MVVM style? Is there a code sample somewhere to take a look at?

 

Thank you.

Hi All,

Is there any possible for changing the content of ChartTrackBallBehavior. I have attached a sample image(sample.jpg).I want to modify content of the track ball Behaviour.

Thanks in Advance!