The issue reproduces in the following situation.

• The selection mode is Extended and the selection unit is Mixed.
  
• Multiple rows are selected.
  
• Cells of the selected rows are updated.
  
• The column of the updated cells is previously sorted (before the update of the cell values).
  
• DataTable is used to populate the RadGridView control.

To work this around set the SelectionUnit property of RadGridView to FullRow or use a collection type like ObservableCollection<T> instead of a DataTable.

When only single cells have been selected and the grid is sorted/grouped, the selection of these cells is cleared. However, the SelectedCellsChanged event is not fired.

If the DisplayIndex of the columns is set when they are initialized, ColumnGroups are not displayed.

As a workaround, you can set the DisplayIndex after the columns are initialized. 

 

In this case, the business object has properties with similar names "A" and "a". The default binding does not respect upper and lower cases for similar naming.

Hello, 

I believe that I have found a bug with the delete keyboard functionality using the delete key. Below are the steps to reproduce:

1. Click on any row of the grid view.
2. Observe the row is selected.
3. Click any cell in the selected row to enter into edit mode.
4. Exit edit mode using escape.
5. Observe the row is still selected.
6. Now click the delete button.
7. Observe the delete operation doesn't work.

 

Note that if the user selects a new row and then selects the previous row the delete works. 

Demo to illustrate is in SDK sample browser.

Grid View Examples - Custom Keyboard Command Provider

Please let me know if you need any additional information.

Thank you.

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.

For example, we can create the SUM() function for the cells in the ViewPort.

Currently, when setting ShowToolTipOnTrimmedText, the duration of the displayed tooltip is hardcoded to 5 seconds. Add an API to change the duration.

The row arrangement is implemented correctly, but because of rounding errors, gaps and rows overlapping may appear during the WPF render phrase. This happens if the boundaries of the row containers use too high precision for its values (top, left, bottom, right). Consider improving this by rounding the boundary values before calling the Arrange() method of the row's container.

The class Telerik.Windows.Data.QueryableExtensions has a static dictionary "providerIsEntityFrameworkCore"

That dictionary will hold a reference (forever) to a collection that is set as Source for the GridView.

Reason is that non IQueryable-types will be wrapped in a EnumerableQuery<T> that will return itself as the provider (https://referencesource.microsoft.com/#System.Core/System/Linq/SequenceQuery.cs,44), encapsulating the reference.

This must be something introduced recently.

Currently, the splitter is drawn with few pixels and a background color based on the current Telerik theme. Add an API like a Style or another type of property that allows you to change the default color and width of the splitter.

In this particular case, the DisplayIndex properties of the parent and child grid are bound to property from our ViewModel. When the parent grid columns are reordered runtime, the columns of the child grid are also reordered. But when sorting is performed by clicking on a column header, an exception is thrown.

Replacing all Columns, Group, and Sort descriptors while keeping the same ItemsSource causes the grid rows to have the wrong heights.

When the items in the bound collection are replaced while the RadGridView is sort and group, ArgumentOutOfRangeException is thrown.

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. 

ArgumentException: ''' is not a valid value for property 'Name'.' Such an exception is thrown when clicking on the Add New Row button when the RadGridView is populated with objects that return null in their ToString method. 

The RadGridView's is bound to an empty DataView and grouped by a GridViewComboBoxColumn. When adding items during runtime, setting the SelectedItem in code or selecting through the UI -> the SelectedItem remains null. 

 An error is thrown while exporting RadGridView using the SpreadStreamExport and a GroupDescriptor is added.