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. 

I'm using the fluent theme in my app. When I load ColorVariation.Dark, everything is dark except a sub-window. This is a window created by my main window. Its main control is TabControl with most of the tabs items being ListBoxes using data templates. The Listboxes display dark but the window itself is light along with the first tab item which is just a grid with TextBoxes. I don't specify background color on any of these controls so I assumed they would come from the theme. Do I have to do something to pass the info th a sub-window?

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?

Non-breaking spaces are converted to plain spaces when importing docx documents. While non-breaking spaces are not fully supported by RadRichTextBox, this behavior is inconsistent with the behavior of all other formats, which preserve the nbsps on import and on export.

Enable clients to set custom HelpText for the controls from the suite.

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. 

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.

When importing documents with destinations defined with zero-based page index, an invalid page is displayed when the destination is activated.

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

We have a WCF service that continuously polls a database for new/updated items and sends them to WPF clients.  The client will process the update, decide what to do and then add/update an item that is displayed in a RadGridView.  We use an IEditableCollectionView on top of an ICollectionView.  Exception detail is below.

App just crashed while sitting idle on Zarate,

No mention of MSCORLIB so I think its a different error.

Application: ReView.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.ArgumentOutOfRangeException
   at System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument, System.ExceptionResource)
   at Telerik.Windows.Data.KeyedCollection.IndexOf(System.Object)
   at Telerik.Windows.Controls.DataControl.ItemCoerce(System.Windows.DependencyObject, System.Object)
   at System.Windows.DependencyObject.ProcessCoerceValue(System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EntryIndex ByRef, Int32 ByRef, System.Windows.EffectiveValueEntry ByRef, System.Windows.EffectiveValueEntry ByRef, System.Object ByRef, System.Object, System.Object, System.Windows.CoerceValueCallback, Boolean, Boolean, Boolean)
   at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
   at System.Windows.DependencyObject.SetValueCommon(System.Windows.DependencyProperty, System.Object, System.Windows.PropertyMetadata, Boolean, Boolean, System.Windows.OperationType, Boolean)
   at System.Windows.DependencyObject.SetValue(System.Windows.DependencyProperty, System.Object)
   at Telerik.Windows.Controls.DataControl.Telerik.Windows.Data.Selection.ISelectorInternal.set_CurrentItem(System.Object)
   at Telerik.Windows.Data.Selection.ItemSelectionHandler.SynchronizePublicCurrentItem()
   at Telerik.Windows.Data.Selection.ItemSelectionHandler.HandleCurrentItemChanged()
   at Telerik.Windows.Controls.GridView.Selection.CompositeSelectionHandler+<>c__DisplayClass6.<OnOwnerItemsCurrentChangedDispatch>b__4()
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
   at System.Windows.Threading.DispatcherOperation.InvokeImpl()
   at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at MS.Internal.CulturePreservingExecutionContext.Run(MS.Internal.CulturePreservingExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Windows.Threading.DispatcherOperation.Invoke()
   at System.Windows.Threading.Dispatcher.ProcessQueue()
   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
   at MS.Win32.HwndWrapper.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(System.Object)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority, System.TimeSpan, System.Delegate, System.Object, Int32)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(System.Windows.Interop.MSG ByRef)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame)
   at System.Windows.Application.RunDispatcher(System.Object)
   at System.Windows.Application.RunInternal(System.Windows.Window)
   at ReView.App.Main()


Event Type:	Error
Event Source:	.NET Runtime
Event Category:	None
Event ID:	1026
Date:		10/12/2018
Time:		10:10:15 AM
User:		N/A
Computer:	NRAD-NE-RAPAC.ratc.com
Description:
Application: ReView.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.ArgumentOutOfRangeException
   at System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument, System.ExceptionResource)
   at System.Collections.Generic.List`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].get_Item(Int32)
   at Telerik.Windows.Data.ListExtensions.BinarySearch[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]](System.Collections.Generic.IList`1<System.__Canon>, System.__Canon, System.Func`3<System.__Canon,System.__Canon,Int32>)
   at Telerik.Windows.Data.KeyedCollection.IndexOf(System.Object)
   at Telerik.Windows.Controls.DataControl.ItemCoerce(System.Windows.DependencyObject, System.Object)
   at System.Windows.DependencyObject.ProcessCoerceValue(System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EntryIndex ByRef, Int32 ByRef, System.Windows.EffectiveValueEntry ByRef, System.Windows.EffectiveValueEntry ByRef, System.Object ByRef, System.Object, System.Object, System.Windows.CoerceValueCallback, Boolean, Boolean, Boolean)
   at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
   at System.Windows.DependencyObject.SetValueCommon(System.Windows.DependencyProperty, System.Object, System.Windows.PropertyMetadata, Boolean, Boolean, System.Windows.OperationType, Boolean)
   at System.Windows.DependencyObject.SetValue(System.Windows.DependencyProperty, System.Object)
   at Telerik.Windows.Controls.DataControl.Telerik.Windows.Data.Selection.ISelectorInternal.set_CurrentItem(System.Object)
   at Telerik.Windows.Data.Selection.ItemSelectionHandler.SynchronizePublicCurrentItem()
   at Telerik.Windows.Data.Selection.ItemSelectionHandler.HandleCurrentItemChanged()
   at Telerik.Windows.Controls.GridView.Selection.CompositeSelectionHandler+<>c__DisplayClass6.<OnOwnerItemsCurrentChangedDispatch>b__4()
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
   at System.Windows.Threading.DispatcherOperation.InvokeImpl()
   at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at MS.Internal.CulturePreservingExecutionContext.Run(MS.Internal.CulturePreservingExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Windows.Threading.DispatcherOperation.Invoke()
   at System.Windows.Threading.Dispatcher.ProcessQueue()
   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
   at MS.Win32.HwndWrapper.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(System.Object)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority, System.TimeSpan, System.Delegate, System.Object, Int32)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(System.Windows.Interop.MSG ByRef)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame)
   at System.Windows.Application.RunDispatcher(System.Object)
   at System.Windows.Application.RunInternal(System.Windows.Window)
   at ReView.App.Main()

 

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Data:

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 control should be customizable so you can place also a content different than an image as in the WPF native splash screen support (https://docs.microsoft.com/en-us/dotnet/framework/wpf/app-development/how-to-add-a-splash-screen-to-a-wpf-application).

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.

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

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.

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.