Context: I have a Master Grid and each row has its detail with a tabstrip and tabs with others grid (untyped datatable as source).
When i try to filter a column of type string, i got a exception.
I come along and try to fix the code and realize that the parameter 'memberType' in ExpressionBuilderFactory.MemberAccessExpressionBuilderBase is getting object and not string.
So for me the following code fix the issue.
I hope telerik add a fix to that in the following versions of this wonderfull product.
//DataRow (from a dynamic datatable)
if (memberType is object)
memberType = typeof(string);