A data item was not found in the container. The container must either implement IDataItemContainer, or have a property named DataItem.
I'm working on a GridView and I'm databinding a List<BusinessObject> to it. All is well until I tweaked some code and suddenly, I got this System.Web.HttpException with message
A data item was not found in the container. The container must either implement IDataItemContainer, or have a property named DataItem.
I haven't been programming with ASP.NET for a while and I haven't encountered the said exception. Turned out that I have a null item in the list due to some filtering of data that I have included (transformation from array types to list type is involved).
The first sentence tells it all "A data item was not found in the container" but I got confused with the second sentence.