after the last published version of telerik libraries I have a problem with the radmap control.
Before I was able to add providers by programming in behind code (radmap.providers.add ...), now I have a problem(nothing change in code only dlls telerik) and it crashes my applications. When adding provider to a control, radmap gets "Invalid input string format" error
I used this method because I change the url in the provider and in order to refresh the content of a given provider I had to delete it earlier and add it soon.
my provider base on UriImageProvider.
before last version of telerik i had and worked url of provider for example: "http://server:port/arcgis/rest/services/test/MapServer/export?bbox=23.4333229064942,52.1333826707921,23.8082803998675,52.0174907373669&size=2184.28571428571,1098.42857142857&imageSR=3857&format=png&transparent=true&dpi=96&dynamicLayers=%5b%7b%22source%22%3a%7b%22type%22%3a+%22mapLayer%22%2c%22mapLayerId%22%3a+44%7d%2c%22drawingInfo%22%3a%7b%22showLabels%22%3a+False%7d%7d%2c%5d&f=image"
now its problem
how to update my provider after add to radmap?
Is there currently another way to add provider and change the url in the provider and refresh on the map?
How to display image from arcgis server which provider i have to used ?tilemadsource,imagemapsource,UriImageProvider maybe another?
Hello!
Is it possible to collapse empty space in my RadRibbonBackstage?
<telerik:RadRibbonView.Backstage> <telerik:RadRibbonBackstage HorizontalContentAlignment="Left" ScrollViewer.VerticalScrollBarVisibility="Disabled" ScrollViewer.HorizontalScrollBarVisibility="Disabled"> <telerik:RadRibbonBackstageItem Header="..."> <controls:InventoryControl DataContext="{Binding Path=...}"/> </telerik:RadRibbonBackstageItem> ... </telerik:RadRibbonBackstage></telerik:RadRibbonView.Backstage>My version is 2021.1.325.45.

Hello.
In the grid view, the selection unit is set to 'FullRow' and the selection mode is set to 'Extended'.
I want to know how to make a checkbox column and do multi-check.(Refer to the image)
Using GridViewSelectColumn will do something similar.
However, It is immediately reflected when selecting a row and does not support binding.
And I have to keep the checkbox variable when I close or open the window.
So I try to use GridViewCheckBoxColumn.
Anotherway is to put CellTemplate in GridViewDataColumn and do EventBindings, but the logic is not correct.
<telerik:RadGridView Margin="10 0" Width="300" ItemsSource="{Binding Rooms}" behaviour:GridViewMultiSelection.SelectedItems = "{Binding RoomItems}" SelectionUnit="FullRow" SelectionMode="Extended" AutoGenerateColumns="False" ShowColumnHeaders="True" ShowGroupFooters="False" ShowGroupPanel="False" RowIndicatorVisibility="Collapsed" RowDetailsVisibilityMode="Visible" EnableColumnVirtualization="True" EnableRowVirtualization="True" VirtualizingPanel.IsVirtualizing="True" ScrollViewer.HorizontalScrollBarVisibility ="Auto" ScrollViewer.VerticalScrollBarVisibility ="Auto" FrozenColumnsSplitterVisibility="Collapsed" IsFilteringAllowed="False" AutoExpandGroups="False" > <telerik:RadGridView.Columns> <!--<telerik:GridViewSelectColumn/>--> <telerik:GridViewDataColumn Header="Name" Width="*" IsReadOnly="True" DataMemberBinding="{Binding Name}" /> <telerik:GridViewDataColumn Header="ID" Width="0.7*" IsReadOnly="True" DataMemberBinding="{Binding Id}" IsVisible="False"/> <!--<telerik:GridViewDataColumn DataMemberBinding="{Binding IsChecked}" Header="Verification" Width="75" > <telerik:GridViewDataColumn.CellTemplate> <DataTemplate> <CheckBox IsChecked="{Binding IsExcept}"> <telerik:EventToCommandBehavior.EventBindings> <telerik:EventBinding EventName="Checked" Command="{Binding RelativeSource={RelativeSource AncestorType=telerik:RadGridView}, Path=DataContext.OnCheckedCommand}" /> </telerik:EventToCommandBehavior.EventBindings> </CheckBox> </DataTemplate> </telerik:GridViewDataColumn.CellTemplate> </telerik:GridViewDataColumn>--> <telerik:GridViewCheckBoxColumn Header="Verification" Width="75" DataMemberBinding="{Binding IsChecked}" IsReadOnly="False" EditTriggers="CellClick" AutoSelectOnEdit="True" IsThreeState="False" > </telerik:GridViewCheckBoxColumn> </telerik:RadGridView.Columns></telerik:RadGridView>
If the above problem is not solved, is there a way to keep the variable when closing or opening the window using GridViewSelectColumn?
Thanks.

Hey. I already had a license. But I cannot find the Project Configuration Wizard in my VS 2019 Extensions. Here is the screenshot.
Hello.
I am trying to change a specific background color of a row in a GridView.
Here, I used rowstyle and RowStyleSelector to see that the color has changed. (Both apply)
(My function) Clicking the button checks the GridView Row and changes the background color of only the matching values.
Both work when you up or down the mouse wheel. I think this is not efficient for me.
I know that RowStyle uses Convert and RowSelector overrides Style SelectStyle.
Is this just the difference? Or what is the performance efficiency that is good when using my function?
Thanks.
Hi.
I think I have a problem with binding.
I use a RadGridView with 3 columns and binding. I set DataContext in code behind and use it in binding here.
I also use TextBlockWithSearchProperty. It's common TextBlock with my custom property SearchText, it works normally.
The problem is that GridView create a few TextBlockWithSearchProperty objects and view works normal. I can see a data that I show in view, but in code behind property Text (TextBlockWithSearchProperty) is equal to "" and DataContext is equal to null. I don't understand why?
How can I fix it? Or what I do wrong?
<telerik:RadGridView Name="GridView" Margin="5"
AutoGenerateColumns="False" ItemsSource="{Binding Path=SelecteDay.Items}">
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn Header="Time"
DataMemberBinding="{Binding Time, StringFormat=\{0:hh\\:mm\}}"
CellEditTemplate="{StaticResource TimePicker}" Width="100" />
<telerik:GridViewDataColumn Header="Text" x:Name="TextColumn"
DataMemberBinding="{Binding Text, UpdateSourceTrigger=PropertyChanged}"
Width="*" IsFilterable="True" FilterMemberPath="Text">
<telerik:GridViewDataColumn.CellTemplate>
<DataTemplate >
<infrastructure:TextBlockWithSearchProperty Text="{Binding Text, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
SearchText="{Binding RelativeSource={RelativeSource AncestorType={x:Type telerik:RadGridView}}, Path=DataContext.SearchText, Mode=OneWay}"
d:DataContext="{Binding}" />
</DataTemplate>
</telerik:GridViewDataColumn.CellTemplate>
</telerik:GridViewDataColumn>
</telerik:RadGridView.Columns>
</telerik:RadGridView>
Hello,
I'm using the Progress Telerik UI for WFP sample application (R1 2021 SP1) to review the capabilities of RadNotifyIcon.
Unfortunately, the balloon features are not working at all for me. For example, navigating to the "Notify Icon Configurator" sample app, the "Show balloon" and "Hide balloon" both do nothing.
Everything else seems fine - the icon is visible, and the popup features are working. Just the balloon messages are not.
I'm running the latest build of Windows 10 with two 4k monitors are 200% scaling.
Any thoughts on a fix or workaround would be appreciated.
- Mark R.


Hello Community.
Is it possible to use Telerik UI with ARIA for WPF / XAML / VB without using ASP.NET or Silverlight?
We're looking for a solution to read ARIA tags with JAWS Screen Reader from a Desktop Application.
Greetings
Jürgen