When a GridViewRow has a validation error, a ToolTip with the error will appears on mouseover. If we scrolled the RadGridView, which has rows with errors, the tooltip starts to appear on valid rows. This behavior is reproducible when using the RowValidating event to validate the data.

We can implement drag-scroll behavior when dragging column across the headers section of the columns.

ArgumentOutOfRandeException in FlatLayoutStrategy.RealizeRows(). The exception occurs if RadGridView.GroupRenderMode="Flat"

New row in Bottom position is not visible in the child grid when the grid has no items

The GridViewNewRow is invalid when the edit is cancelled but the edited object has reported a validation error. 

In this scenario, we have two grids in different windows on different threads. When reordering columns in the first grid and reordered rows in the second will lead to an exception: System.InvalidOperationException: The calling thread cannot access this object because a different thread owns it.

Currently, the DistinctValuesDisplayMode="Tree" property of the columns supports only values of the type of DateTime and DateTime?, which the filtering control will display in a tree-like manner.

The DateOnly and DateOnly? types are not supported, however, we can try to add such support.

The UI is not updated when an item is replaced in the bound ListCollectionView. 

Workaround: Remove the item and add a new one.

I want to get ItemsSource by retrieving a list from a dictionary, so I need 2 parameters, but I can't use MultiBinding to do this!

The property changed of the property bound to IsExpandableBinding (property of RadGridView) is not reflected in the row. To reproduce this the IsPropertyChangedAggregationEnabled property of RadGridView should be set to True (which is the default value) and the view model property (bound to IsExpandableBinding) should be updated consequently with other properties of the view model. For example:

myRowModel.Name = "New name";
myRowModel.IsExpandable = false;

To work this around, use the IsExpandable property of GridViewRow. You can data bind it using the RowStyle property of RadGridView. Or alternatively, set the IsPropertyChangedAggregationEnabled property of RadGridView to False.

Add a method that allows you to start a cell animation when its content (the bound property of the underlying data item) changes. 

Column widths are not calculated correctly when star-width columns are added dynamically which leads to the appearance of a horizontal scrollbar when it is not required.

If you add a column with IsReorderable set to False and then drop another column over it, nothing should happen. However, sometimes the drop is executed and the not reorderable column is moved to another index.

To work this around, cancel the reordering in the ColumnReordering event if the drop target column cannot be reordered.

Currently, the range of the ScaleFactor property is between 0.1 and 4.0. We could include API to allow the user to set minimum and maximum boundaries that are between the default range (0.1 and 4.0).

For example:

• MinimumScaleFactor=0.8 
• MaximumScaleFactor = 1.5

Currently, the FilteringControl orders its filters in a StackPanel with a vertical orientation, which means that the distinct values list is placed above the field filters. Add an option to allow changing the position of the distinct values to the left or right (consider also bottom).

This is useful if you want a more compact view. Also, the feature will resolve several corner cases where the screen doesn't have enough vertical space for the Popup and its contents get clipped.

When a null or string.Empty value is set to a property, which is bound to the Text property of the HighlightTextBlock(placed in a DataTemplate for the CellTemplate property of a column) an exception is thrown upon clearing the search text.