I would like the fluent theme to support spacing option like it does fonts. The Mail app added a new setting "Folder and message spacing" in which you can pick spacious , medium, or compact. I would like the fluent theme to support something similar.  The fluent theme was defined for "finger" access but we still have desktop apps that want dense information with mouse access.  I would normally just pick a different theme but because of Windows 10, I can't. Windows 10 no longer supports specifying a default font and WPF no longer defaults to the OS font. This means that all my Windows apps must support picking a font. So I'm stuck with the fluent theme. But I don't always want the "spacious" spacing that the theme uses.

Would it be possible to support picking "spacious", "medium" or "compact" spacing?

I have downloaded the SDKSampleBrowser application from link but when I open application I am getting error attached in log file.

This is similar to AutoCompleteBox. However, you can write text freely and the suggestions popup should appear only when you enter a special character like '@' for example. This behavior is observed in the facebook, slack and ms teams chats. You can mention someone in the chat.

With the release of the Fluent theme, it would be nice to have a Hamburger Menu control similar to the NavigationView for UWP (https://docs.microsoft.com/en-us/windows/uwp/design/controls-and-patterns/navigationview).

NavigationView is available with our latest official version - R1 2019.

.Net Core 3.0 (https://github.com/dotnet/core/blob/master/roadmap.md) is now activly developed. It will support WPF on Windows. How are your plans to support it?

Any roadmap?

An exception is thrown when the ItemsSource of the ItemsSourceProvider is bound to a DataTable and an item is select in the drop-down.

The fix for this issue will be available with our next official version – R1 2019 expected in the middle of January. 

Introduce a property to close the dropdown upon selection (when in Single mode).


*** CloseDropDownAfterSelectionInput property will be available with Q1 2019 expected in the middle of January. When set to True, the dropdown will be closed only with SelectionMode Single. 

The current workaround is to handle the Loaded event like so:

        private void RadMultiColumnComboBox_Loaded(object sender, RoutedEventArgs e)
        {
            this.combo.DropDownWidth = this.combo.DropDownMinWidth;
        }

The fix for this issue will be available with the next LIB (version 2018.3.1224) expected on Monday, December 24.

UI can still accept more inputs  even if item has been selected in SelectionMode="Single"
Please check the screenshot.

SelectionBoxesVisibility property will be introduced with Q1 2019 expected in the middle of January. When set to Hidden/Collapsed, SearchAutoCompleteBox contains the selected item as text only.

Would be useful for setting timezone offsets and for more control to the user

Currently, the DefaultVisualStyleSelector doesn't kick-in when the Direct2D or the Bitmap render options are used and their DefaultVisualRenderMode property is set to Batch.

Note that DefaultVisualRenderMode=Separate works.

Telerik.Windows.Controls.SpreadsheetUI.for.Wpf NuGet package is not uploaded on the Telerik NuGet server.

Fix available in LIB Version 2018.3.1029.

The underline types are compared by reference, causing mismatch and incorrect results.

Workaround: Use the UnderlineTypes static class to apply underlines.

Fix available in R3 2018 SP1 release.

The issue is also observable in the Outlook project template as well - in the NewEmailWindow. As a workaround, the ScreenTip can be removed by deleting the following code:
telerik:ScreenTip.Icon="{telerik:IconResource IconRelativePath=FontDialog.png,IconSources={StaticResource IconSources}}"  

Fix available in R3 2018 SP1 release.

     if the pie chart area's size is auto,when adjust the area's  vertical size,the pie's radius  will change in order to fit the label display,it is ok,but when adjust the area's horizontal size,the pie's radius don't  change,looking the attachment file,the label move above the pie.

Short version of feature request: 
It would be nice to be able to enforce unique value in a column in an MVVM environment?

Long version of request:
To enforce a unique value in a column I ended up with a custom ValidationAttribute in the data model. Very much like the last example in the old thread 
https://www.telerik.com/forums/force-validation-on-new-record-insert

Direct link to the example provided by Telerik:
https://www.telerik.com/clientsfiles/375715_328546-TestApp-new.zip 

At a first glance, the solution seems to work, but if you edit a value in a cell and the new value is the same as another cell in the same column, BOTH these cells would have an error. Not just the cell you edited. I understand that not all cells can be validated whenever a single cell is edited, but it would nice if there was way to configure the RadGridView to “refresh” validations of all visible cells when a validation error is either set or removed?

I do not know if a solution like this would fit the internal design of the RadGridView, but it might give you some inspiration :-)

Add an attribute to the column definitions in the GridView:
ValidationTransitionMode= Default | ForceValidationOfAllVisibleCellsInColumn | ForceValidationOfAllVisibleCells

Default: 
No change from existing functionality.

ForceValidationOfAllVisibleCellsInColumn: 
Whenever a validation result of a cell changes (from no_error to error OR from error to no_error) all the visible cells in the column will be re-validated. This would do the trick to enforce uniqness in a column with a custom ValidationAttribute.

ForceValidationOfAllVisibleCells: 
Whenever a validation result of a cell changes (from no_error to error OR from error to no_error) all the visible cells of the complete grid will be re-validated. To be used by people with more complex validation algorithms depending on values in other columns as well.


Steps to visualize the current problem.
◦Run the example (https://www.telerik.com/clientsfiles/375715_328546-TestApp-new.zip )
◦When the application is running, reduce the window height (from the bottom) so that the scroll bar is visible and the top visible row shows “last name”=”Rockhead 0” and the bottom visible row shows “Rockhead 4”.
◦Change last name “Smith 3” to “Smith 1”.
◦Now there is a red border around the cell we edited (as expected) but nothing happens to row 2 (First name=Jane1).
◦Scroll to the bottom and back up to the top.
◦Now there is also an error on row 2 (First name = Jane1).
◦Change “Smith 1” back to “Smith 3” (on the row where First name=Jane 3).
◦The error on the cell edited is now removed, BUT the error on row 2 (Jane 1) is still visible even as all values in the Last name column is now unique.

I got some very good support and a suggestion to modify the control template, but it would still be nice to be able to control the validation execution of cells, other than the current cell.

Complete information can be found in the forum thread:
https://www.telerik.com/forums/enforce-unique-content-in-a-column-using-mvvm#4qSllj_EKkecS6ZtctdwAw 

Regards
/Stefan

I would like to do a Backstage design without writing code, the syntax of XAML is confusing and I do not understand it well, besides being slow, the development of software at design time is always much faster.