I've got a RadGridView specified like this:
<telerik:RadGridView
ItemsSource="{Binding MyDataSource}"
AutoGenerateColumns="True"
IsReadOnly="True"
CanUserSelect="False"
IsSynchronizedWithCurrentItem="False"
SelectionMode="Multiple">
<telerik:RadGridView.Columns>
<telerik:GridViewSelectColumn />
</telerik:RadGridView.Columns>
</telerik:RadGridView>
As you can see I have AutoGenerateColumns set to True but then I add a GridViewSelectColumn manually. Is it somehow possible using DisplayIndex attribute on columns or otherwise to specify the index of manually added columns when also having AutoGenerateColumns equal to True?
In this specific situation I would like to get the GridViewSelectColumn as the last column. I know I can manually add all the columns I want and then order them as I desire but as I'm using a special presentation entity class where I want all fields in that class to show up in the grid it would have been easy just to leave AutoGenerateColumns on.
Tomas
3 Answers, 1 is accepted
Of course you can influence the ordering of the columns by setting the DisplayIndex property. However, the columns defined in XAML are created before the auto-generated ones, so you won't be able to specify the DisplayIndex there, because the maximum value of the DisplayIndex property is always the number of columns and at that time you will have only one column.
The solution is to handle the GridView's DataLoaded event. It fires after columns have been created. In the handler you can create and add the GridViewSelectColumn to the GridView's Columns collection. In this case, you won't even need to set the DisplayIndex property, because the column will be the last in the list at this point, but you can if you want it to appear at a different position.
Yavor Georgiev
the Telerik team
Rank 1
I tried to add myGrid.Columns.Add(new Telerik.Windows.Controls.GridViewSelectColumn()); in DataLoaded event handler but that resulted in that I got as many selectcolumns as there was rows in the grid (at least I think so because there was lots of them)
I then tried the Loaded event instead and that seams to have done the trick. Is this the right approach?
Tomas
Of course, Loaded is the pen-ultimate loading event, so if it works for you, go ahead. I apologize for misleading you with the DataLoaded event.
Please don't hesitate to let me know if you have any further inquiries.
Yavor Georgiev
the Telerik team