Question

What SqlDbType enumeration should I use when my column is the Geography type? I’m using MS SQL Server 2008 R2.

This is what I’m looking for specifically:

// ADO.net - what do I use for the SqlDbType when it's defined 
// as Geography in the stored proc
SqlCommand command = new SqlCommand();
command.CommandText = "dbo.up_Foobar_Insert";
command.CommandType = CommandType.StoredProcedure;

command.Parameters.Add("@SomeGeographyType", SqlDbType.????);

Answer 1

Update

Try this:

//define parameter
command.Parameters.Add("@shape", SqlDbType.NVarChar);
//
//code in between omitted
//
//set value of parameter
command.Parameters["@shape"].Value = feature.Geometry.AsText();

Taken from Inserting SQL 2008 Geometry With a SqlCommand