ColumnGroup right border hidden when reorder the column

[Guy]

hi,
Right now , I am try to add the new ColumnGroup feature in my project, Everything works fine, but I found there is a tiny issue if the header column's header text is shorter than the column group header text, when you reorder the header column, the right border of it's colum group is hidden unless you enlarge the header column size, is there any solution can avoid the issue? thanks.

[Pavel Pavlov]

Hi Guy,

Thanks for reporting this bug. I was able to reproduce it and it is already scheduled for a fix .
I am uprating your Telerik points. One more time thank you for the feedback !

Kind regards,
Pavel Pavlov
the Telerik team

[Guy]

Hi Pavel,
Do you know when you will fix this issue ? thanks

[Pavel Pavlov]

Hi Guy ,

The fix is scheduled for our next official release (at the end of February) . I strongly believe it will be also available in one of our very next Monday internal builds as well.

Regards,
Pavel Pavlov
the Telerik team

[Guy]

thanks

[Guy]

Hi Pavel,

The proble still exists,  test version  Silverlight4_2012_1_0221_DEV_hotfix.

Also I found that it really lower the performance when I include the ColumnsGroups in the grid. In my case, I have 3 level of Column Groups, the last level has 1000 columns.when i loaded the data, the loading time is around 10-12sec compare with without columngroups only take 2-4 sec.

regards,

guy

[Pavel Pavlov]

Hello Guy,

I have asked our QA engineers to check again the behaviour with the missing right border. According to them - everything works fine with the new version. Maybe we are missing something. Can you share some details e.g. steps to reproduce as we are no more able to expose this bug after the latest fixes.

Regarding the performance: Indeed with large amounts of columns we have a known issue of degraded performance with the merged column headers. This section of RadGridView does not implement virtualization( yet) . We are working on this and are going to include some improvements on this matter  for the service pack  coming in less than a month.

Regards,
Pavel Pavlov
the Telerik team

[Guy]

Hi Pavel,

thanks for your reply. the right border is correctly display, but it cause another problem which cannot auto width the column correctly.
I have attached a image shown the issue.

thanks,

Guy

[Pavel Pavlov]

Hi Guy,

RadGridView does not implement auto width for the merged column headers. The reason is that in the most common case a merged header would contain at least two columns and if we have some intelligent logic to auto-size it , it will not know how to distribute that width to the child columns.

Regards,
Pavel Pavlov
the Telerik team

[Guy]

Hi Pavel,

I am still waiting for the improvment for the known issue of degraded performance with the merged column header. I tried the version Silverlight5_2012_1_0319_DEV_hotfix, but still didn't solve the problem. Do you know when you will improve it?

thanks,

Guy

[Pavel Pavlov]

Hello Guy Girouard,

This is a known issue and we are already working on improving the performance of RadGridView when multiple column groups are present. So far we have managed boost the performance twice. This improvement will be present in our very next internal build. In your scenario I believe this would mean reducing the load time to about 4 seconds. I am aware that this is still beyond the acceptable time so we are going on with our efforts to further optimize the merged headers performance. Meanwhile I encourage you to download our LIB (the next Monday) and share the results with me.

Greetings,
Pavel Pavlov
the Telerik team