In my gridview I want to prevent the user from deleting entire rows but allow to delete (multiple cells) by pressing the DEL-key. Works fine so far but how can I prevent that the user accidentally selectes multiple rows and presses delete. So far I just count the number of selected fields for delete and show a warning but there's got to be a nicer way.

Is there any property in the radgridview that tells me, if multiple rows are selected?

Row selection as such is needed for copy/paste so removing anything is not an option.

thanks for your help in advance!

Jan

I ran the demo called Resize Map Shapes with Mouse Dragging (https://docs.telerik.com/devtools/wpf/controls/radmap/how-to/howto-resize-map-shapes-with-mouse-dragging)

which I downloaded from the associated web page (https://www.telerik.com/blogs/radmap-for-silverlight-wpf-how-to-resize-map-shapes-with-mouse-dragging)

and it worked fine.

I updated the controls to WPF40 version 2018.3.1016.40 and it it now acts differently.  When dragging, it loses mouse capture.  If I release the left mouse button and move the cursor back over the draggable circle it then continues to drag (won't do anything if I don't release the left mouse button).

I also tried this using WPF45 version 2018.3.1016.45 and the same problem (and changing my app's .Net version to 4.6.1).

Attached are two animated gifs showing the original version working and the replaced dll version's odd behavior.

I tracked GotMouseCapture, IsMouseCaptureChanged and LostMouseCapture and recorded this:

12:39.122 IsMouseCaptureChanged
12:39.122 GotMouseCapture
12:39.122 IsMouseCaptureChanged
12:39.122 LostMouseCapture

I didn't change the MainWindow.xaml.cs at all.  I just removed the references to the 3 Telerik controls, removed the controls from the binaries folder, added the newer Telerik controls to the binaries folder, and added the references back.  I'm using Visual Studio 2017.

Below is my radcombobox with checkbox multi select dropdown. 

The issue is the empty text doesn't show. It's just blank. Is there anyway to get this to show? I suspect it has to do with the custom data templates. Can anyone help me with this?

Thanks.

I have a gridview with another gridview embedding in the detail.

When a row is opened and the detail is displayed the grid shows fine.

When the horizonal scroll bar is used the detail grid will disappear regardless to how many columns are still needed to display in the detail.

Please see bellow gridviews and screenshots attached

Hey,

is it possible to change just the font of the grouped rows? The default and cell fonts should not be changed.I want

to change the font to consolas (mono space font).

Hi,

I need to create new custom indicator for candlestick chart  (VWAP & Pivots). I found explanation here (http://docs.telerik.com/devtools/winforms/chartview/series-types/indicators/custom-indicators), but I can't compile the code. 

public class DisparityIndexIndicator: ExponentialMovingAverageIndicator

{

    public override double GetProcessedValue(int currentIndex){

double close = (this.DataPoints[currentIndex] as IndicatorValueDataPoint).BaseValue;double ema = base.GetProcessedValue(currentIndex);double result = ((close - ema) / ema) * 100;return result;}}

Hi,

After 9h 15min of trying to change the color of a f**king selected Tab of a Radpane I finally give up an post this thread.

I have created a copy of RadPane Control and Placed it in a style. Changed and added Values. Commented things out. And allways the same result.

Here is my code:

<Style TargetType="telerik:RadPane" BasedOn="{StaticResource RadPaneStyle}">
                <Setter Property="Background" Value="#121212"/>
                <Setter Property="Foreground" Value="#808080"/>
                <Setter Property="Template">
                    <Setter.Value>
                    <ControlTemplate>
                        <Grid x:Name="wrapper" Margin="0,0,0,-2" Background="Purple">
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="*"/>
                                <ColumnDefinition Width="Auto"/>
                            </Grid.ColumnDefinitions>
                            <VisualStateManager.VisualStateGroups>
                                <VisualStateGroup x:Name="CommonStates">
                                    <VisualState x:Name="Disabled">
                                        <Storyboard>
                                            <DoubleAnimation To="0.2" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="HeaderElement"/>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Normal"/>
                                    <VisualState x:Name="MouseOver">
                                        <Storyboard>
                                           
                                            <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="MouseOverVisual"/>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="PinnedVisual">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="#202020"/>
                                                   
                                            </ObjectAnimationUsingKeyFrames>
                                            
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Selected">
                                        <Storyboard>
                                            <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="(UIElement.Opacity)"  Storyboard.TargetName="SelectedVisual"/>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="HeaderElement">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="#202020"/>
                                                  
                                                </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>
                                <VisualStateGroup x:Name="PinnedStates">
                                    <VisualState x:Name="Unpinned">
                                        <Storyboard>
                                            <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="PinnedVisual"/>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Margin" Storyboard.TargetName="wrapper">
                                                <DiscreteObjectKeyFrame KeyTime="0">
                                                    <DiscreteObjectKeyFrame.Value>
                                                        <Thickness>1</Thickness>
                                                    </DiscreteObjectKeyFrame.Value>
                                                </DiscreteObjectKeyFrame>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Margin" Storyboard.TargetName="HeaderElement">
                                                <DiscreteObjectKeyFrame KeyTime="0">
                                                    <DiscreteObjectKeyFrame.Value>
                                                        <Thickness>0</Thickness>
                                                    </DiscreteObjectKeyFrame.Value>
                                                </DiscreteObjectKeyFrame>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="MouseOverVisual">
                                                <DiscreteObjectKeyFrame KeyTime="0">
                                                    <DiscreteObjectKeyFrame.Value>
                                                        <Visibility>Collapsed</Visibility>
                                                    </DiscreteObjectKeyFrame.Value>
                                                </DiscreteObjectKeyFrame>
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Pinned"/>
                                </VisualStateGroup>
                            </VisualStateManager.VisualStateGroups>
                            <Border x:Name="PinnedVisual" BorderBrush="Red" Background="Red" BorderThickness="0,0,0,4" Grid.ColumnSpan="2" Opacity="0"/>
                            <Border x:Name="MouseOverVisual"  Background="Red" Grid.ColumnSpan="2" Opacity="0"/>
                            <Border x:Name="SelectedVisual" BorderBrush="Red" BorderThickness="1,0,1,1" Background="Red" Margin="0,-1,0,0" Opacity="0"/>
                            <Primitives:TabItemContentPresenter x:Name="HeaderElement" Background="Red" Foreground="{TemplateBinding Foreground}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" MinHeight="16" Padding="{TemplateBinding Padding}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}">
                                <Primitives:TabItemContentPresenter.Style>
                                    <Style TargetType="{x:Type Primitives:TabItemContentPresenter}">
                                            <Setter Property="Background" Value="Blue"/>
                                            <Setter Property="Template">
                                            <Setter.Value>
                                                <ControlTemplate TargetType="{x:Type Primitives:TabItemContentPresenter}">
                                                    <Border BorderBrush="{TemplateBinding BorderBrush}" Background="OrangeRed" BorderThickness="{TemplateBinding BorderThickness}" >
                                                            <ContentPresenter  ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" ContentStringFormat="{TemplateBinding ContentStringFormat}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                                                    </Border>
                                                </ControlTemplate>
                                            </Setter.Value>
                                        </Setter>
                                        <Setter Property="IsTabStop" Value="False"/>
                                    </Style>
                                </Primitives:TabItemContentPresenter.Style>
                            </Primitives:TabItemContentPresenter>
                        </Grid>
                    </ControlTemplate>
                    </Setter.Value>
                </Setter>
            </Style>

Also tried to get some results by creating copy of all other raddocking components.

Why can't there be a simple TabItemHeaderTemplate which can easily be styled?

Btw. I don't want to use any predefined theme.

Regard

Currently when you highlight a row in the child GridView, the ParentRow becomes highlighted. It would be really nice to have an option so that the ParentRow would be selected when a row in the child GridView is selected. This should work recursively selecting the ParentRow all the way up the hierarchy.

I've written a workaround, but it isn't pretty.

Please add this functionality. :)

My case involves a three tier hierarchical GridView. If I select a row in a third tier GridView, then I want its ParentRow to become selected on the second tier and the second tier's ParentRow to become selected on the first tier. Hopefully that makes sense.