Assuming the following view model. How do I bind the VisibleItems collection to the RadGridView? One-Way binding would be sufficient, as I would deactivate any filtering from the UI side. Performance is important.

​Cheers,

Jan

Hello,

I've written a custom selection behavior in order to support un-selecting points when clicking on an empty (non-Data Point) area of the chart. This behavior works pretty nicely. However, as soon as the chart is zoomed or panned in any direction, the click ends up selecting a point to the upper-left of where I actually clicked. The main algorithm of the click selection is below. Is there a specific pan/zoom offset that I'm supposed to take into account?

var rect = new Rect((myMouseButtonEventArgs.GetPosition(this.Chart as IInputElement), new Size(myHitTestMargin));
if(this.Chart is RadCartesianChart)
{
    var chart = this.Chart as RadCartesianChart;
    var points = chart.Series.SelectMany(s => s.HitTestDataPoints(rect)); //-- this returns the wrong set of points when zoomed or panned
    //-- Create a new arguments object with these points and invoke a custom event with those args
}

I have a couple questions regarding the use of RadPivotFieldList with a LocalDataSourceProvider:

1) When I try to add a CalculatedField to the LocalDataSourceProvider at runtime, RadPivotFieldList does not refresh unless I change the ItemsSource (by setting it to null and back to the previous items source). Is there any other way to refresh the list?

2) Is there a way to automatically expand Container Nodes in RadPivotFieldList? I tried using an implicit style targeting TreeGridRowGroupHeader but it is not working.

Thanks,

Gian Paolo

Hello ,

             I am new to telerik tool and upgrading the old asp.net application to WPF browser application which extensively uses the grid view control.

             I am trying to replicate following functionality from old application to new application and not sure what is the best approach and how to do it .

             1.Grid view is binded to database object and  based on the certain value present in particular field I need to show the edit button in each row, If that value    is not present then I need to hide the button.

             2. On click of this edit button, I need to show the update and cancel button in place of edit button as well as show the combo box with selections in different column (only this column need to be editable).

Thanks

Andy

Hi,

I'm trying to pass the window object of a window type RadWindow as command parameter to the code behind - however not RadWindow will be passed, but some helper windows classes of type WindowHostWindow.

The XML look like this:

<telerik:RadRibbonButton Text="Speichern"
                                             AllowDrop="True"
                                             LargeImage="..\Images\save.png"
                                             Size="Large"
                                             telerik:ScreenTip.Title="Speichern"
                                             telerik:ScreenTip.Description="Einen neuen Task anlegen."
                                             telerik:KeyTipService.AccessText="S"
                                             IsEnabled="{Binding CanSave}"
                                             Command="{Binding SaveCommand}"
                                             CommandParameter="{x:Reference Name=taskwindow}"
                                             IsDefault="True"/>

The Code behind(implementation of the command):

private void SaveProcess(object obj)
{

...

RadWindow wnd = (RadWindow)obj; <= this cast already fails as some helper class will be passed instaed of the expected RadWindow

Using the "normal" Window class instaed of the Telerik one, the code runs without any issues.

Looking forward to your answer.

Thanks,

Joachim

Hello,

I have a situation where I will have a collection of multiple RadDocuments that I would like to merge together into one document (and eventually create a PDF). I am able to accomplish this, but any lists that may be contained in those documents do not come out properly. Is there something I have to do other than using CreateDeepCopy to retain those liststyles? My code is doing something like this:

    Dim mergedDocument As Telerik.Windows.Documents.Model.RadDocument = New Telerik.Windows.Documents.Model.RadDocument()

                For Each section As Section In document.Sections             

                    Dim copySection As Section = TryCast(section.CreateDeepCopy(), Section)
                    copySection.PageMargin = section.PageMargin
                    copySection.PageSize = section.PageSize
                    copySection.CopyPropertiesFrom(section)

                    mergedDocument.Sections.Add(copySection)
                Next

            Return mergedDocument

Hi , 

I am facing an issue of SelectionChangeEvent when customizing the RadTabItem Header using Header Template in Style . Following Style for HeaderTemplate 
 <Setter Property="HeaderTemplate" >
                             <Setter.Value>
                                 <DataTemplate>
                                          <StackPanel Orientation="Horizontal" VerticalAlignment="Center" >
                                         <TextBlock Text="{Binding   TabHeader}" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="5,0,5,0"></TextBlock>
                                         <Button Content="x" BorderThickness="0"  Background="Transparent" HorizontalAlignment="Center" Margin="0,0,5,0" V ></Button>
                                     </StackPanel>
                                 </DataTemplate>
                             </Setter.Value>
                        </Setter>

Using Following Template Style

<Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="{x:Type telerik:RadTabItem}">
                                <Grid>
                                    <Border Name="Border" Background="#FF6E6C67"
                                            
                                            BorderThickness="1,1,1,1" 
                                            CornerRadius="5"
                                            >
                                        <ContentPresenter
                                            x:Name="ContentSite" 
                                            ContentSource="Header"
                                            VerticalAlignment="Center"
                                            HorizontalAlignment="Center" 
                                            RecognizesAccessKey="True"/>
                                    </Border>
                                 
                                </Grid>
                                <ControlTemplate.Triggers>
                                    <Trigger Property="IsSelected" Value="True">
                                        <Setter TargetName="Border" Property="BorderThickness" Value="2,2,2,0"></Setter>
                                        <Setter TargetName="Border" Property="Margin" Value="0,-3,0,0"></Setter>
                                        <Setter TargetName="Border" Property="Background" Value="Red" />
                                    </Trigger>
                                    <Trigger Property="IsEnabled" Value="False">
                                        <Setter TargetName="Border" Property="Background" Value="Green" />
                                    </Trigger>
                                </ControlTemplate.Triggers>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>

Please answer me if there is any issue in the above given Style 
Thanks 

I came across a strange issue with the RadGridView and the message queue.  When my application first starts it displays a model dialog box (for licensing).  After leaving this dialog box displayed for a couple of minutes I closed the dialog box.  I then got a trap with the "not enough quota" error and the application crashed.

Running Spy++ shows that there are thousands of events being generated even when the application is sitting idle. 

The events are: ...[Registered: "DispatcherProcessQueue"] wParam:00000000 lParam:00000000

I can reproduce this in my application by including 1 RadGridView.  if I remove all RadGridViews the issue disappears.

The demo WPF application version R2 2018 also demonstrates the issue when you open up the GridView demo. 

The really strange part is that I an only reproduce this on a brand new computer running windows version 1803 (OS Build 17134.112).  

My old PC running windows version 1703 (OS Build 15063.1029) does not exhibit this issue at all.  There are some of the events shown above but not a flood of them.  Both my application and the WPF demo application run just fine. 

Attached is an image of the demo and the output of Spy++ running on the new PC.

Thanks,
Phil Young