When implementing the RadComboBox, the items list (which, in my case, is a few hundred items) opens slowly. How do I use a virtualized control like DataGrid or Grid view to improve the performance? Any other suggestions are welcome also.
Thanks,
mhenderson
Thanks,
mhenderson
5 Answers, 1 is accepted
0
Hello Michael,
Several months ago, I wrote a blog post about replacing the RadComboBox ItemsPresenter with RadTreeView. If your data is hierarchical or can be groupped, you could use a treeview with load-on-demand inside RadComboBox, otherwise you could try the same approach and replace the ItemsPresenter with RadGridView or other virtualized Grid control:
http://blogs.telerik.com/valerihristov/posts/08-11-08/treeview_in_a_combobox_dropdown_using_radcontrols_for_silverlight.aspx
Regards,
Valeri Hristov
the Telerik team
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Several months ago, I wrote a blog post about replacing the RadComboBox ItemsPresenter with RadTreeView. If your data is hierarchical or can be groupped, you could use a treeview with load-on-demand inside RadComboBox, otherwise you could try the same approach and replace the ItemsPresenter with RadGridView or other virtualized Grid control:
http://blogs.telerik.com/valerihristov/posts/08-11-08/treeview_in_a_combobox_dropdown_using_radcontrols_for_silverlight.aspx
Regards,
Valeri Hristov
the Telerik team
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Michael
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answered on 30 Apr 2009, 02:47 PM
Thanks for your reply. I downloaded the treeview-in-a-combobox sample and swapped the treeview with a datagrid. Then I added a thousand records to the sample datasource. However, this is much slower than the same datagrid by itself with the same amount of data. Is there something I am missing?
0
Hi Michael,
We are work hard to implement horizontal (cells) virtualization. Could you send us simple project so that we can investigate your scenario?
Thanks.
Kind regards,
Hristo
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We are work hard to implement horizontal (cells) virtualization. Could you send us simple project so that we can investigate your scenario?
Thanks.
Kind regards,
Hristo
the Telerik team
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Michael
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answered on 11 May 2009, 01:19 PM
I'd be happy to send in a sample project illustrating the issue. What's the method for submitting one?
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Hello Michael,
You can submit private support ticket attaching your sample there. Thank you in advance for helping us investigate the problem!
Kind regards,
Konstantin Petkov
the Telerik team
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You can submit private support ticket attaching your sample there. Thank you in advance for helping us investigate the problem!
Kind regards,
Konstantin Petkov
the Telerik team
Instantly find answers to your questions on the new Telerik Support Portal.
Check out the tips for optimizing your support resource searches.