Hi,

I would like to customise the animation for the opening and navigate event/state of the radial menu. How can I do it? Thank you! 

I have an existing WPF application which uses Microsoft.Windows.controls.Datagrid. I want to add the RadDataPager to do the pagination, how can I do it? 

Here's my sample code. It displays the data but it doesn't do the pagination. All data is displayed in a single page.

<dg:DataGrid Name="dgRegistryDetails" FontSize="14" DockPanel.Dock="Bottom" Foreground="#FF07315B"

                         ItemsSource="{Binding}"   CanUserSortColumns="true"
IsReadOnly="True"    AutoGenerateColumns="False" >

<telerik:RadDataPager VerticalAlignment="Bottom" DisplayMode="FirstLastPreviousNextNumeric" Source="{Binding Items, ElementName=dgRegistryDetails}"  IsTotalItemCountFixed="True" x:Name="RadPager" PageSize="10" />

I have a C# WPF application using MVVM with a simple RadCartesianChart that shows a single ScatterLineSeries representing a surface profile.  It works well. 

Now I want to enable my user to mark out certain horizontal regions of the plot for use in my application.  The general idea is this

1. User clicks a button that adds a visual indicator representing the region. 
2. The indicator appears.  It looks like a big wide bar going from the bottom Y of the plot to the top Y and covering an arbitrary X width.
3. The user can then use the mouse (or their finger) to made the bar wider/narrower or move it left or right across the plot

(I have attached an image showing roughly what this should look like.  It is from a much older version of this application that doesn't use C#, WPF or Telerik.)

My problem is not in writing interaction/manipulation code.  It is in determining exactly what Telerik entity I should interact with.  That is I don't know how best to achieve this with the tools Telerik gives me.   

I can think of several approaches. 

• For example, I looked into using Chart Annotations.   They seem perfect for marking out chart regions and your examples are good.  But I can't find any examples that show me how the user might *interact* with them.    How do I add a mouse/touch handler for an annotation?   Is it possible?  Is that the best way?
• Or maybe I should add mouse/touch handlers for the RadCartesianChart object.  Then in code-behind I could try to figure out what annotation my mouse/finger is over and go from there, is that the way?  
• Or should I instead try to create my own buttons, completely separate from the cahrt that overlay the whole plot and match up exactly with chart plot area.  Is that the way to go?
• Is there some other, cleaner way to achieve this?

My Chart in XAML is like this:

   

My ProfileRegionVm class -- which represents an instance of this horizontal reagion is like this:

Hi:

    I recently encountered a problem when using Edit Collections. I want to save the database immediately after editing Edit Collections.Is it possible to customize the Edit Collections template and add save buttons other than add and remove to achieve this?

Hi Telerik-team,

Is it possible to select what columns should be shown in the dropdown from the GridViewMultiColumnComboBoxColumn, like it is possible in the RadMultiColumnComboBox? I could not find any documentation on that.

Thank you in advance!

Greetings, Mats

There are currently issues with RadWindow minimization after the latest version of the 2019 R3 SP1.

It works correctly when minimized by the Minimize button.
But, Click the icon on the Task Bar in Windows to minimize it, and then press the same button again to return it to its original state.
Almost the entire area behaves like a transparent state.

Test)
Set to RadWindowInteropHelper.AllowTransparency="False"

All but the left-top part of the title bar will be invisible to the screen.

The above issue is the same for WPF Demo Application.
With SP1 in place, is there a temporary solution to this issue?

Good day! 

I have a problem with determination of selected items when IsVirtualizing="True". In attached project I used two different ways to counting selected items: 1. With binding IsSelected property, 2. Just counting of treeview SelectedItems. And both are incorrect in situation when selecting some number of treeview items by clicking with Shift button (SelectionMode="Extended"). For example, I select more than 8000 items but received next: items with IsSelected = true property: 37, selected tree view items: 980

Link to download project sample: click

I have a exception when i try to filter the null value for the column, when having Null descriptor and other values as well.  The binding is a dynamic object, i am setting the column type as expected.

I am using the version 2019.2.618.45 of telerik dll