Improving the performance of a virtual grid
We are using a virtual grid to display a 40 column, variable row Grid Control. The entire grid is refreshed every second. If the number of rows is more then the refresh takes ip 100% CPU and is very slow. Can you tell me what steps i can take to reduce the CPU usage and improve performance?
SIGN IN To post a reply.
3 Replies
AD
Administrator
Syncfusion Team
November 7, 2006 04:29 AM UTC
Hi Thales,
Please refer to the TraderGridTest browser ( \Syncfusion\Essential Studio\4.3.0.25\windows\Grid.Windows\Samples\Performance\TraderGridTest ) sample which demonstrates the frequent updates in random cells across the grid while keeping the CPU usage at a minimum level. A timer changes cells in short intervals, inserts and removes rows.
Also refer to the below forum thread for resovling the filckering issue in a grid.
http://www.syncfusion.com/support/forums/message.aspx?&MessageID=51230
Best Regards,
Haneef
Please refer to the TraderGridTest browser ( \Syncfusion\Essential Studio\4.3.0.25\windows\Grid.Windows\Samples\Performance\TraderGridTest ) sample which demonstrates the frequent updates in random cells across the grid while keeping the CPU usage at a minimum level. A timer changes cells in short intervals, inserts and removes rows.
Also refer to the below forum thread for resovling the filckering issue in a grid.
http://www.syncfusion.com/support/forums/message.aspx?&MessageID=51230
Best Regards,
Haneef
VG
Vijayarajan Govindarajan
November 7, 2006 04:21 PM UTC
Hi Haneef,
I tried the sample, it works fine. But in my application, i do not know whether the data in the virtual grid has changed or not. So i loop through all the rows and display the data for all the row/col combinations. This is again taking 100 % CPU. Is there any other solution?
Thanks,
Thales
>Hi Thales,
Please refer to the TraderGridTest browser ( \Syncfusion\Essential Studio\4.3.0.25\windows\Grid.Windows\Samples\Performance\TraderGridTest ) sample which demonstrates the frequent updates in random cells across the grid while keeping the CPU usage at a minimum level. A timer changes cells in short intervals, inserts and removes rows.
Also refer to the below forum thread for resovling the filckering issue in a grid.
http://www.syncfusion.com/support/forums/message.aspx?&MessageID=51230
Best Regards,
Haneef
I tried the sample, it works fine. But in my application, i do not know whether the data in the virtual grid has changed or not. So i loop through all the rows and display the data for all the row/col combinations. This is again taking 100 % CPU. Is there any other solution?
Thanks,
Thales
>Hi Thales,
Please refer to the TraderGridTest browser ( \Syncfusion\Essential Studio\4.3.0.25\windows\Grid.Windows\Samples\Performance\TraderGridTest ) sample which demonstrates the frequent updates in random cells across the grid while keeping the CPU usage at a minimum level. A timer changes cells in short intervals, inserts and removes rows.
Also refer to the below forum thread for resovling the filckering issue in a grid.
http://www.syncfusion.com/support/forums/message.aspx?&MessageID=51230
Best Regards,
Haneef
AD
Administrator
Syncfusion Team
November 8, 2006 09:53 AM UTC
Hi Thales,
You can use the Grid.Invalidate method to refresh the grid Or You can have a hashtable to maintain the changed cell information in a grid and can refresh the changed cell using the Grid.InvalidateRange method. Please try the suggestion and let me know if this helps.
Best Regards,
Haneef
You can use the Grid.Invalidate method to refresh the grid Or You can have a hashtable to maintain the changed cell information in a grid and can refresh the changed cell using the Grid.InvalidateRange method. Please try the suggestion and let me know if this helps.
Best Regards,
Haneef
SIGN IN To post a reply.
- 3 Replies
- 2 Participants
-
VG Vijayarajan Govindarajan
- Nov 6, 2006 08:45 PM UTC
- Nov 8, 2006 09:53 AM UTC
