I would like to suggest that a more intuitive clear filter option be used on the Filtering columns in the RadGrid.  Currently, I have to select "No Filter" from the Filter list of options.

Instead, I believe the Filter should be provided to be more intuitive similar to other applications such as Microsoft Access, Excel or Google Search.

In Microsoft Access or Excel, I simply unselect the Filter icon to remove the Filter.
In Google Search, I simply click the X icon next to my search criteria to remove my search text.

Either of these methods should be adopted so that the overall end user experience is more pleasant and comparable to filter capabilities in other tools and products.

1.  create a rad grid with clientside binding and a clientdeletecolumn.  clientdelete column is buttontype=linkbutton and the linkbutton has a class for a background image
2.  set allowpaging="false" but don't set a page size
3.  populate grid so that it has 10 records
4.  all client delete buttons are visible
5.  add more records so that there are > 10 records
6.  records from 11>n will not show the clientdeletecolumn
7.  now, up the page size to something greater than your record count
8.  problem fixed

on viewing source you can see that the rgNoRecords tr is inserted after record 10 (default page size), which seems to affect the rendering below. the actual links for the client side delete columns are not rendered

RadGrid client events OnRowDropping and OnRowDropped do not fire if item is dropped onto itself.

I would like to suggest the ability to turn on/off a plus/minus icon that can appear in the grid header in order to expand all or collapse all.  This is one of those things that is not very difficult for people to code on their own, but it seems like a basic feature of a grid that can have child detail data.  I'd rather be able to set a boolean property through code or in my theme .skin file for the grid, and have it turned on for me.  It should function no matter what the HierarchyLoadMode is set to, but when set to "Client", the expand/collapse should all happen on the client.  Thanks!

When Grouping on an Integer value, the groups are not ordering correctly. i.e. if you group on values {864, 1455, 1494}, the actual order comes out as {1455, 1494, 864}.

Ordering on the same data, but converted to a string and padded to the left with zeros resolves this issue.

We have to bind a Grid to a SQLDataSource with several columns that should be displayed and edited as a CheckBox column.

We've seen in your manuals that a GridCheckBoxColumn can be binded to a datafield with 'True' or 'False', but what about the fields that contains numerics 1 or 0 ?   

(SQLDataSource does not have a True/False column, so, the GridCheckBoxColumn is useless)

We've also seen a workarround with Templates, but when in edit mode, it is very tedious. 

In our opinion, it's a very common procedure to display numeric columns with Checkboxes. Do you plan to add this feature in new versions?

Thank you in advance.

Additional improvements for the MultiColumn Headers can be considered if needed:
1. Support for Header context menu
2. Client-side show / hide operations with the columns

RadGrid row height is not calculated correctly after postback

Using Web.UI v2011.1.315.35
How can I count only non-blank items in the group

Screenshots attached using the built-in and custom aggregates, also the custom-aggregation event handler code attached.