Parse XML Result in Entity Framework 6.1.2

Question

I am trying to parse a result from a SQL Server that is returned as XML (using FOR XML in the query).

I have an .EDMX file that maps the stored procedure to a complex type (with one column: Name = XML_F52E2B61-18A1-11d1-B105-00805F49916B, EDMType = String, Db Type = ntext, Nullable = true, MaxLength = Max).

When I call the stored procedure the resulting type is:

ObjectResult<"ResultName">

When I try to write it out to the console I get an error message

The data reader is incompatible with the specified '"ResultName"'. A member of the type, 'XML_F52E2B61_18A1_11d1_B105_00805F49916B', does not have a corresponding column in the data reader with the same name.

So, because I was getting an error message using a complex type, I decided to try changing the result to a scalar: string.

What I get now in the Output Window (using System.Diagnostics.Debug.WriteLine("objectName") ) is:

(System.Data.Entity.Core.Objects.ObjectResult`1[System.String])

If I try to do anything with the result, I get error messages if I foreach or for over it I get an error

The specified cast from a materialized 'System.Int32' type to the 'System.String' type is not valid

What the hell does this mean? (In fact if I just do a .Count() on the returned object I get the same error message)

So I guess my most pressing question is: how am I supposed to get a XML result from SQL Server through a stored procedure?

NOTE : I am not talking about an XML column in the database, I am talking about returning a query result as XML.

Any help would be greatly appreciated.

Thank you,

Tim

Answer 1

For those interested, this issues is related to the fact that I have 4 different SQL Server instances that I am dealing with (Local, Dev, Stage, Prod) and I was using the incorrect instance to get this information.

I created a stored procedure that returned XML, I added that to the Local instance and then when I was running my test application, I was looking to Dev to get the information. Since the stored procedure wasn't there, I was getting errors. Sorry for the long question that ended up being noting but a mistake on my part.

Doh.

Thanks, T