I can't get this to work. I have a RadGridView with following properties set:
In code behind, the DataContext and ItemsSource are set to a new ObservableCollection<object>() which is populated when the data is retrieved from a WCF service. The Data object is populated in the callback function of the asyncronous call to the service like this:
Now, the grid displays the data, that is not an issue. The problem is that the DataLoadMode="Asynchronous" EnableRowVirtualization="True" bit does not seem to kick in. The browser hangs with large amounts of data going over the wire and I'm not sure if there is anything in particular I should do in the data contracts or otherwise to get this to load asynchronously.
Any help would be greatly appreciated.
Thank you
| <telerik:RadGridView x:Name="answers" ShowGroupPanel="False" AllowDrop="False" CanUserReorderColumns="False" CanUserSortColumns="False" DataLoadMode="Asynchronous" AutoGenerateColumns="True" ScrollMode="Deferred" EnableRowVirtualization="True" SelectionMode="Extended" /> |
| ServiceResult.AnswerList.ToList().ForEach(Data.Add); |
Any help would be greatly appreciated.
Thank you
3 Answers, 1 is accepted
0
Hi,
I'm not sure about your scenario and what is desired result however you can safely remove DataLoadMode="Asynchronous" since your service is asynchronous itself. The grid will get chunk of data only if you use paging - DataLoadMode="Asynchronous" is not related to this.
All the best,
Vlad
the Telerik team
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I'm not sure about your scenario and what is desired result however you can safely remove DataLoadMode="Asynchronous" since your service is asynchronous itself. The grid will get chunk of data only if you use paging - DataLoadMode="Asynchronous" is not related to this.
All the best,
Vlad
the Telerik team
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0
danijels
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answered on 27 May 2010, 11:50 AM
Thanks, Vlad
So, is there no possibility to get chunks of data using a service and only fetching a little more than it is visible in the grid? I'm thinking maybe OnRowLoading or something similar invoking new calls to the service and providing the range of data to fetch?
So, is there no possibility to get chunks of data using a service and only fetching a little more than it is visible in the grid? I'm thinking maybe OnRowLoading or something similar invoking new calls to the service and providing the range of data to fetch?
0
Hi,
If you want to do this on scroll please check my blog post for more info:
http://blogs.telerik.com/vladimirenchev/posts/09-12-21/how_to_custom_scrolling_with_radgridview_for_silverlight_and_wcf_ria_services.aspx
All the best,
Vlad
the Telerik team
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If you want to do this on scroll please check my blog post for more info:
http://blogs.telerik.com/vladimirenchev/posts/09-12-21/how_to_custom_scrolling_with_radgridview_for_silverlight_and_wcf_ria_services.aspx
All the best,
Vlad
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.