Possible bug in HeaderContextMenu

[yerlan]

Hello.

I'm found issue on RadGrid HeaderContextMenu, when grid contains 40+ columns:

If i enable header contextmenu, and set :

1.<HeaderContextMenu>
2.    <DefaultGroupSettings RepeatColumns="2" RepeatDirection="Vertical"/>
3.</HeaderContextMenu>

context menu looks incorrect - columns selector contains 2 columns, but checkboxes appears only in first column (see screnshot in attach). In RadGrid with 30+ columns -  all works correctly. How possible resolve this issue?

ASP.NET AJAX Q2 2010, .NET4, VS2010.

[Tsvetoslav]

Hi yerlan,

I suppose you are experiencing the behavior only in the case in which the context menu gets a scroll on account of the large number of items in it. Unfortunately, RadMenu (which is used for the context menu of the grid) does not support the multicolumn option with scrolling. You need to set the RepeatColumns property to a number big enough to avoid the scrolling for the context menu.

Hope it helps.

Regards,
Tsvetoslav
the Telerik team

[yerlan]

Hello Tsvetoslav.

Thanks for help. I'm increased RepeatColumn value to 3, but columns in menu still placed incorrect - first column full, second column filled to half of height, third column is empty.

[Tsvetoslav]

Hi yerlan,

Could you try adding the following style to your page:

<style type="text/css">

      .RadMenu ul.rmMultiColumn .rmMultiGroup {
        background:none repeat scroll 0 0 transparent;
        border:0 none;
    }

</style>

and also set EnableAutoScroll=false for the header context menu:

<HeaderContextMenu EnableAutoScroll="false">
    <DefaultGroupSettings RepeatColumns="3"  RepeatDirection="Vertical" />
</HeaderContextMenu>

Regards,
Tsvetoslav
the Telerik team

[yerlan]

Tsvetoslav, i'm followed you recommendations, but same result (see attach.)

[Tsvetoslav]

Hello yerlan,

At this point, I'd ask you to open up a formal support ticket and send a runnable test project where the issues can be observed as I am not able to reproduce the problem on my side, not with the suggested fixes. Thanks for that.

Regards,
Tsvetoslav
the Telerik team