Currently to use a UserControl in RadGrid, it has to be in EditFormSettings defined as UserControlName. This functionallity requires filling all the controls of UserControl again on ItemDataBound event.
It should be possible to put the UserControl in FormTemplate when EditFormType is "Template" . Thank you.

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.

This is not a bug. In order to show the value into the GridDropDownColumn  the relation between fields from the GridDropDownColumn  data source and the grid datasource must be correct. Into the attached project in order to show the value in GridDropDownColumn the GridDropDownColumn's DataField needs to be "MyItemID":

<telerik:GridDropDownColumn DataField="MyItemID" DataSourceID="SqlDataSourceColors"  
                            FilterControlAltText="Filter Color column" HeaderText="GridDropDownColumn"
                            ListTextField="ColorName" ListValueField="ColorID" SortExpression="ColorName"
                            UniqueName="MyItemIDMyItemID">
                        </telerik:GridDropDownColumn>

Additionally the filtering also works as expected. More information here:

http://www.telerik.com/help/aspnet-ajax/grid-filtering-by-listtextfield-for-griddropdowncolumn.html