Prevent cell from being edited twice.

[Charles]

I have a grid where the first column is "Region"

When I create a new row I want to ensure that the user can specify the value for "Region" only once. After that I want the cell to be readonly. The region is selected from a control which is specified in the CellEditTemplate. The CellTemplate simply contains a TextBlock

The GridViewDataColumn has the IsReadOnlyBinding property bound to a property on the row object called "RegionIsDefined". I set this to true once the region is selected. Unfortunately this does not make the cell readonly (it still has focus and is in edit mode).

How should I inform the view that I have finished selecting the Region with the CellEditTemplate control?
- should I lose focus on the column?
- is there a cell editing ended event I can call?

<telerik:GridViewDataColumn IsReadOnlyBinding="{Binding RegionIsDefined}">
    <telerik:GridViewDataColumn.CellTemplate>
        <DataTemplate>
            <TextBlock Text="{Binding Name}" />
        </DataTemplate>
    </telerik:GridViewDataColumn.CellTemplate>
    <telerik:GridViewDataColumn.CellEditTemplate>
        <DataTemplate>
            <myRegionControl>
...
            </myRegionControl>
        </DataTemplate>
    </telerik:GridViewDataColumn.CellEditTemplate>
</telerik:GridViewDataColumn>

Many thanks

[Dimitrina]

Hi,

As I understand you have a cell into edit mode. Then you edit its value and you also update the "RegionIsDefined" property.

This property will take effect and the cell will become ReadOnly after you commit the edit. You should press Enter, click outside of the edited cell or invoke the CommitEdit GridView's command.

How does this work for you?

Regards,
Didie
Telerik

[Charles]

Yep it was the grid CommitEdit I was after. I had been looking on the Cell for it. Works perfectly thanks.