Client side data from odata works great, filter and paging with no extra coding.  Surely grouping should be done client side, requesting the amount of data it requries from the odata source.  This can make sure when groups are closing, the javascript can request more data to fill up the paging.  

Add a new column type "AutoExpand", I have lots of grids where the number of columns changes dynamically but the width of each column is fixed, this means that the width of the grid data section changes and with only a few columns defined leave a big vertical space between the last data column and the grid right hand border.
It would be great to be able to add a AutoExpand column as the last column in the grid to fill any remaining space between the end of the last data column and the grid righthand border. This will give you a consistant look regardless of how many columns are added.

When the grid has no paging and all the groups are collapsed its good to have a paging defined within grouping to display all the groups in the same page as well can browse through the items within the group with paging defined.

For reproducing this you need to set: RadGrid1.DataSource = null;

Still when DataSource = new List<object>(); is set for DataSourse the RadGrid is successfully bound and does not throw errors.

For the time being you can use the JavaScript workaround provided in the attachment.

grid line are not showing here with i am attaching the my aspx page and the current output page screen shot. this issue are randomly generated may be generate on first page load or on page scroll some lines visible or invisible. But grid line are always shown in IE8.

Update: Items is marked as Won't Fix as the behavior is expected and is due to the nature of the batch mode. Changing it will result in a breaking change.

Currently it's not possible to overrule number of pages to be shown in page navigation, if EntityDataSource is used. There is the problem that always all rows from data source get queried, when GridGroupByExpression has been defined for RadGrid - and this is really a problem, if data source has hundreds of thousands of records (as in our case). The performance is really bad.

To overcome this issue I would like to control myself, which data gets returned by adapting query in OnQueryCreated event of EntityDataSource, basically by "injecting" skip / take expression to entity query. I am responsible myself about sorting and grouping should be done on page level only (so there is no need to query always ALL data).

In same event I want to set VirtualItemCount, which should control number of pages to be shown in page navigation (in combination with AllowCustomPaging). But unfortunately this setting is not taken into account by RadGrid for displaying pages in page navigation.

Is it possible to overrule this behavior that VirtualitemCount is always taken into account when AllowCustomPaging has been enabled? I would like to control myself.

Thanks,
Roger