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
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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?
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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
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