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Hierarchical child grid not refresh after programmatically add new row

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GridView
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CQT
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CQT asked on 13 Nov 2013, 03:17 PM

Hello, I have a problem with a Hierarchical GridView.
Both my father grid and child one have dataset as datasource.
When I'm going to add a new row in child gridview i should populate the fields with a value taken from a textbox.
To populate cells of the new row I used the sub SubGrids_AddingNewDataItem or SubGrids_BeginningEdit to assign values to each cell.
The process seems to work, I can see the new added row but i can't see assigned values of each gridview cells immediatly, I have to click 2 times over each cell to see the values.
Once the new row is added to my gridview i don't see any value even if the item contains the value in code behind. The second time I enter the cell I can see the value I set in code behind.
I need your help to know how to add a new row in my child gridview, setting values from code behind and get them immediately visible when creating new row process ends.


Best Regards

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Dimitrina
Telerik team
answered on 18 Nov 2013, 02:01 PM
Hi,

Would you please try assigning values for the newly added row like this:

void MainWindow_AddingNewDataItem(object sender, Telerik.Windows.Controls.GridView.GridViewAddingNewEventArgs e)
 {
     e.NewObject = new Player("Name 1", 6, Position.DF, "Spain");
 }
 

Regards,
Didie
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CQT
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answered on 19 Nov 2013, 09:39 AM
Hy Didie,
I tried your solution but the application gives me this error: "Unable to add external objects to the list" after I assign the value to e.NewObject.
Did you have any suggestion to solve this problem?

Thanks.
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Dimitrina
Telerik team
answered on 19 Nov 2013, 11:42 AM
Hi,

I am not able to reproduce such an error.
Is your details GridView bound to a collection of Player objects? If so, then may I ask you to isolate the issue a demo project and send it to us?

Regards,
Didie
Telerik
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Dimitrina
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