I have a radgrid that takes about a second to scroll from page to page. This is without a page control. Only a 150 records, which are already in the grid, I am not experiencing a delay from the database.
What the problem seems to be is when I add custom columns. The last column I added was a custom column that had a radrating control in it. This made paging 200% worse.
Should I not use the RadRating control in a grid?
Is there a setting to make the perfromance better?
Maybe I am make the column in the grid wrong?
At this time, I am most likely going to remove the column as the users are complaining.
<telerik:GridViewDataColumn DataMemberBinding="{Binding Path=Rating}" Header="Rating" MinWidth="60" Width="SizeToCells"> <telerik:GridViewColumn.CellTemplate> <DataTemplate> <telerikInput:RadRating Name="_leadRating" Value="{Binding Path=Rating,Mode=TwoWay}" UseLayoutRounding="True"> <i:Interaction.Triggers> <i:EventTrigger EventName="ValueChanged"> <cmd:EventToCommand Command="{Binding Path=DataContext.ChangeRatingCommand, RelativeSource={RelativeSource FindAncestor, AncestorType=UserControl, AncestorLevel=1}}" CommandParameter="{Binding}" /> </i:EventTrigger> </i:Interaction.Triggers> </telerikInput:RadRating> </DataTemplate> </telerik:GridViewColumn.CellTemplate> </telerik:GridViewDataColumn>
3 Answers, 1 is accepted
Possible solution will be to create your own column and cache the UI element (RadRating in this case). I've attached small example application to illustrate you this.
Best wishes,Vlad
the Telerik team
Rank 1
If you reuse the control how does it know what value to show?
How would 2 way databinding work when its the same control?
I will try it.
Bryan
The value will be changed because of the Binding - I believe that you will not have any problems with TwoWay binding in this case.
Regards,Vlad
the Telerik team