slowness tabbing between cells

[Alex]

I have a RadGridView and DataGrid implementation of a grid with with about 20 columns. A large number of the columns use cell templates and some of them use converters as well. I've noticed that when I edit and then tab between columns the RadGrid's performance has a noticeable lag compared to the DataGrid. Any ideas as to what might cause this and ways to alleviate?

Thanks,
Alex

[Nedyalko Nikolov]

Hi,

Could you please send me a little bit more info about your project - kind of the grid's data source, kind of columns, templates and so on (a sample project will be great)?

Kind regards,
Nedyalko Nikolov
the Telerik team

[Alex]

Through some investigation I've determined that this slowness seems to be caused by column width resizing. I have columnWidth set to "Auto" and when a column goes into editing mode it seems to get slightly bigger (if there's a lot of data in it). So, when I tab between columns while in editing mode columns keep slightly resizing causing for degraded performance. Is there a way to prevent columns from resizing when going into editing mode? Is there something else you would suggest? Thank you

[Nedyalko Nikolov]

Hello,

There is no way to stop "resizing" with Column.Width set to "Auto", since this is what "Auto" means - column width is adjusted due to the content. The only way to stop this is to set some fixed value for width (e.g. 100 pixels). You can set Column.Width to "*" for some column in order to fill the empty space.
Keep in mind that setting all columns to a fixed value width will enhance the overall performance of RadGridView (for more information you can take a look at this online help topic).

Regards,
Nedyalko Nikolov
the Telerik team