I'm trying to write a text in the cell below.
                    <telerikGrid:DataGridTemplateColumn Header="Comentarios" SizeMode="Fixed" Width="400">
                        <telerikGrid:DataGridTemplateColumn.CellContentTemplate>
                            <DataTemplate>
                                <TextBox Text="{Binding Comment, Mode=TwoWay}" Style="{StaticResource DatagridCommentEditBox}" />
                            </DataTemplate>
                        </telerikGrid:DataGridTemplateColumn.CellContentTemplate>
                        <telerikGrid:DataGridTemplateColumn.SortDescriptor>
                            <telerikCore:PropertySortDescriptor PropertyName="Comment"/>
                        </telerikGrid:DataGridTemplateColumn.SortDescriptor>
                    </telerikGrid:DataGridTemplateColumn>

To reproduce the problema:
1- Select some Row by clicking inside the Table.
2- Select a "Comentarios" cell to edit.
3- Begin writting some text.
4- While wrtiing a comment and when clicking the "Space bar button" the cursor disappears. It's not possible text a complete Comment. I need to click inside the cell each time.

It will be a great to prevent this issue.