Richard Koslik
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Richard Koslik
asked on 08 Nov 2010, 11:28 AM
Hello!
I have a Gridview and the selectedItem is displayed in some fields beside the GridView. Now I want to check the correctness of the data in the detail fields, before the user changes the selected row in the GridView. If the data is correct I want to save the data (SubmitChanges). The user can only change the data outside the grid (in the detail fields) not directly in the cells.
Which event can I use for this situation? I looked for "OnRowValidating", but it is never called. I searched for it in the online help and there is descriped that I have to set a property named "ValidationMode", but I am not able to find it? Does it exist or not?
http://www.telerik.com/help/silverlight/gridview-rowvalidating-event.html
Maybe somenone has an idea how to solve this problem. Thanks.
Best Regards, Richard
I have a Gridview and the selectedItem is displayed in some fields beside the GridView. Now I want to check the correctness of the data in the detail fields, before the user changes the selected row in the GridView. If the data is correct I want to save the data (SubmitChanges). The user can only change the data outside the grid (in the detail fields) not directly in the cells.
Which event can I use for this situation? I looked for "OnRowValidating", but it is never called. I searched for it in the online help and there is descriped that I have to set a property named "ValidationMode", but I am not able to find it? Does it exist or not?
http://www.telerik.com/help/silverlight/gridview-rowvalidating-event.html
Maybe somenone has an idea how to solve this problem. Thanks.
Best Regards, Richard
3 Answers, 1 is accepted
0
Hello Richard Koslik,
The RadGridView's validation logic will not get executed when the item is edited outside the gridview.
Basically, you need an event which fires before the selection is made in RadGridView. In Q3 2010 which will be released later this week, we are introducing a new event - SelectionChanging which can be canceled if you do not want to change the current selected item.
Hope this helps.
Kind regards,
Veselin Vasilev
the Telerik team
The RadGridView's validation logic will not get executed when the item is edited outside the gridview.
Basically, you need an event which fires before the selection is made in RadGridView. In Q3 2010 which will be released later this week, we are introducing a new event - SelectionChanging which can be canceled if you do not want to change the current selected item.
Hope this helps.
Kind regards,
Veselin Vasilev
the Telerik team
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Richard Koslik
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answered on 12 Nov 2010, 10:20 AM
Hello,
today I downloaded the newest version of the Silverlight components. I tried now the new event SelectionChanging and it doens't works how you said. During the debugging I found following out:
- the first row in my GridView is selected
- now I change some data in the detail fields (SelectedItem)
- then I click on the next row in my GridView
- the SelectedItem is changed
- AFTER that the SelectionChanging Event occured!!
Now I have the same problem as before, that I am not able to cancel the selection. Is there any other solution or something I missed?
Thanks for your answer,
regards Richard
today I downloaded the newest version of the Silverlight components. I tried now the new event SelectionChanging and it doens't works how you said. During the debugging I found following out:
- the first row in my GridView is selected
- now I change some data in the detail fields (SelectedItem)
- then I click on the next row in my GridView
- the SelectedItem is changed
- AFTER that the SelectionChanging Event occured!!
Now I have the same problem as before, that I am not able to cancel the selection. Is there any other solution or something I missed?
Thanks for your answer,
regards Richard
0
Hello Richard Koslik,
Greetings,
Milan
the Telerik team
That is very strange. Is the SelectedItem bound to some ViewModel property or is it purely changed from the UI?
I have attached a sample application that mimics your scenario and seems to work as expected.
Greetings,
Milan
the Telerik team
Browse the videos here>> to help you get started with RadControls for Silverlight