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I am creating a WPF window with a DataGrid , and I want to show the blank "new item" row at the bottom of the grid that allows me to add a new item to the grid. For some reason, the blank row is not shown on the grid on my window. Here is the markup I used to create the DataGrid : <toolkit:DataGrid x:Name="ProjectTasksDataGrid" DockPanel.Dock="Top" Style="{DynamicResource {x:Static res:SharedResources.FsBlueGridKey}}" AutoGenerateColumns="False" ItemsSource="{Binding SelectedProject.Tasks}" RowHeaderWidth="0" MouseMove="OnStartDrag" DragEnter="OnCheckDropTarget" DragOver="OnCheckDropTarget" DragLeave="OnCheckDropTarget" Drop="OnDrop" InitializingNewItem="ProjectTasksDataGrid_InitializingNewItem"> <toolkit:DataGrid.Columns> <toolkit:DataGridCheckBoxColumn HeaderTemplate="{DynamicResource {x:Static res:SharedResources.CheckmarkHeaderKey}}" Width="25" Binding="{Binding Completed}" IsReadOnly="false"/> <toolkit:DataGridTextColumn Header="Days" Width="75" Binding="{Binding NumDays}" IsReadOnly="false"/> <toolkit:DataGridTextColumn Header="Due Date" Width="75" Binding="{Binding DueDate, Converter={StaticResource standardDateConverter}}" IsReadOnly="false"/> <toolkit:DataGridTextColumn Header="Description" Width="*" Binding="{Binding Description}" IsReadOnly="false"/> </toolkit:DataGrid.Columns> </toolkit:DataGrid> I can't figure out why the blank row isn't showing. I have tried the obvious stuff ( IsReadOnly="false" , CanUserAddRows="True" ), with no luck. Any idea why the blank row is disabled? Thanks for your help.

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