windows 10 WPF .Net Core 3.1 Telerik 2020 R3 Sp1:

<Window x:Class="DemoAll.Modules.Telerik.MainWindow"
                xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
                Title="MainWindow" Height="350" Width="525">
        <Grid>
                <telerik:RadButton x:Name="btTest" Content="test" Height="60" Width="120"></telerik:RadButton>
        </Grid>
</Window>

error:

SeverityCodeDescriptionProjectFileLineSuppression State
ErrorCS0234The type or namespace name 'Windows' does not exist in the namespace 'XXXXX' (are you missing an assembly reference?)

==========================================================================

no  x:Name="btTest"

        <Grid>
                <telerik:RadButton  Content="test" Height="60" Width="120"></telerik:RadButton>
        </Grid>

is ok!!!

add x:Name="xxxx" show error "" error CS0234: The type or namespace name 'Windows' does not exist in the namespace '' (are you missing an assembly reference?)

source：https://share.dmca.gripe/EUqiplofuPzhN3Kv.rar

I have the following WPF code

and as you can see on the attached screenshot it is not rendered properly (i.e. the spinning circles are cut on top and bottom). I have tried to use various sizes and alignment but none of them are working so I guess there is an extra property I need to tweak (or there is a bug).

FYI I am using the fluent theme.

Reading the article here, it seems to indicate that setting of the font via control reference will not change the font on an imported document. 

https://docs.telerik.com/devtools/wpf/controls/radrichtextbox/frequently-asked-questions

What that article suggests is the TxtFormatProvider strips the content of all formatting ... but it seems to assign a very large default font size.  How do I go about changing that font size when using TxtFormatProvider.Import ... I couldn't find any examples?

Cheers, Rob.

Hello

I have upgraded my version from 2019 R3 to 2020 R3 and have found that the GridView layouts saved in the old version will not longer load in the new version.

Here is my existing code:

When trying to load the layout it fails with:

Exception thrown: 'System.NullReferenceException' in Telerik.Windows.PersistenceFramework.dll Object reference not set to an instance of an object.

If have tried enabling AllowCrossVersion, but this then fails with:

Exception thrown: 'System.ArgumentOutOfRangeException' in mscorlib.dll

The only way I can get it to work is by following the recommendation in this post Here, it then loads as expected and without any errors:

This isn't a satisfactory fix in the long run. Could you please advise how I should be handling this?

Thanks

Dave

Hi,

I want to modify the RadImageEditorUI controls placement and remove some icons form controls. can you any one tell me how to remove File open and save control ?

Regards

Hema

Reading this article ...

Palette Font Size

Assume I have my Font Sizes setup as in the sample:

Suppose I want to set the FontSize for a specific control:

I'd like to add to the RadRadioButton something like 

Which is not valid, but that's essentially my objective.

Any ideas?

Cheers, Rob.

After reading the documentation on the ImageEditor I find a significant lack of documentation on how to use the many "commands".  In my case the HueShiftTool?

Image Editor Docs

I'd love to see code samples contained in the documentation rather than links to generic projects that need to be installed.  I usually just need the basic "idea" behind how to implement, but I see nothing on "HueShiftTool".  There is an "Effect" property but no idea what I need to do beyond that?

My objective is to simply apply a Hue Shift to the loaded image in the Image Editor.  I don't need all the UI aspects, just execute a hue shift on the loaded image.

Any suggestions welcome.

Cheers, Rob.

Have a project that uses Telerik UI for WPF libraries.

Researching an up coming customer request: they want to submit a request from the current project to SQL and write the output directly to Excel without UI component.

Question using the current Telerik.Windows.Controls.GridView.SpreadsheetStreamingExport.for.Wpf or Telerik.Windows.Documents.SpreadsheetStreaming. Can I  do SQL query take the result/data store object and write the output directly to Excel or must I use a UI like RadGridView then export to Excel?

I will need to set the Excel worksheet format before import data.

Hello,

we're currently updating our application to use Telerik components in order to make use of implicit styling.
I'm making good progress so far but am stuck at this one.

We're currently using the Office2019 theme in the Light color variation.
The problem I'm facing is with the selection of a TreeViewItem and the involved change of the Foreground color that goes along with it.

For TreeViewItems that use a string as a header this works just fine. The item i selected, the Background changes to blue and the Foreground to white. Perfetly readable.

However if I use a grid (containing a TextBlock) as the Header the foreground of the TextBlock remains black and does not change to white.

I tried binding the Foreground color of the TextBlock to the Foreground color of the parent TreeViewItem like so:

However this does not work. Possible because the Foreground property of the TreeViewItem is never changed, but only the Foreground property of the header:

I tried to add another setter to this trigger and set the Foreground property of the TreeViewItem. This kind of works, but unfortunately propagates through all child items of a TreeViewItem.

Any suggestions on how my desired behaviour could be implemented?