The exception is the following: "TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NotSupportedException: 'WpfApp4.MainWindow+MyClass'is not a valid metadata type for type filtering operations. Type filtering is only valid on entity types and complex types."
To work this around, you can call ToList() over the IQueryable object before pass it to RadGridView's ItemsSource.
Add a textbox which allow search and filter functionality for the distinct values in the FilteringControl of RadGridView.
In the meantime, you can check the attached project that shows one way to achieve this.
The new properties will be available with Q2 2016.
GridView ColumnGroup Header does not refresh when bound to view model
Currently the filters for the RadGridView only allows 2 filters. It would be very helpful for the default filter popout to have the option to add additional filters.
Current filter popout:
Filter popout with ability to add additional filters via an Add Filter button:
Competitor's GridView controls have this feature already and it would be very useful to have this feature on the RadGridView control.
Hello
I have often faced a scenarion where I have groups (GroupDescriptor), but those groups need to be ordered by a different property.
Usually, telerik column properties already provide a SortMemberPath.
<telerik:GridViewDataColumn DataMemberBinding="{Binding Name}" SortMemberPath="Id"However, the GroupDescriptor does not have that, it only has Member and SortDirection.
The only way to set the sort to refer another property is in code behind using a generic group descriptor. It is very flexible, but it has several drawbacks, since now I'd have to declare everything in C# (aggregate functions, templates, etc) and also lose the Design time feedback from Visual Studio.
My request is to just have the possibility to set a SortMember in XAML which will work for most scenarios, same way as others components already do.
<telerik:GroupDescriptor Member="OrderState" SortDirection="Ascending"
SortMember="OrderStateIndex" >
Thanks
At the moment the GridViewNewRow can be placed at the top or at the bottom. Placing it between the rows will require new virtualization mechanism.
When DragElementAction="ExtendedSelect" in GridView is set, there is a problem with the deselecting behaviour. Ctrl + click no longer deselects the row. The problem should be resolved with lib version 2015.3.1019.
IsReorderable of a column is not respected when ReorderColumnsMode is different than the default one Fixed with LIB version 2014.1.317.
The expanded state of the hierarchical item is not preserved when searching thought search panel for something that is not found and clearing search text.
When KeyboardNavigation.TabNavigation is set to Once, RadGridView does not lose the focus after the second time it's focused.
Available in LIB version 2017.1.213 , it will be also available in the R1 2017 SP1 Release.