C# Update Function. Where AND Where Not Working.

Can someone please tell me why in the bloody hell this isnt working? It ignores the WHERE VENDORID match portion and marks all instances of USERID match to TRUE. I've been banging my head for an hour... have I really forgotten basic sql???!!!!public static void UpdateVendor(VendorEvaluationEntity VEE)

{int vendorid = Convert.ToInt32(VEE.VendorevalVendor);

int userid = Convert.ToInt32(VEE.VendorevalUser);SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["VendorEvaluationConnectionString"].ConnectionString);

SqlCommand cmd = new SqlCommand("Update tblVendorUser set vendoruser_vendor_evaluated = 'true' where (vendoruser_vendor_id = @vendorid) and (vendoruser_user_id=@userid)", conn);SqlParameter pmvendorid = new SqlParameter();

SqlParameter pmuserid = new SqlParameter();pmvendorid.ParameterName = "@vendorid";pmvendorid.SqlDbType = SqlDbType.Int;

pmvendorid.Value = vendorid;

pmuserid.ParameterName = "@userid";pmuserid.SqlDbType = SqlDbType.Int;

pmuserid.Value = userid;

cmd.Parameters.Add(pmvendorid);

cmd.Parameters.Add(pmuserid);

conn.Open();

cmd.ExecuteNonQuery();

conn.Close();

 

}