Question

I am trying to pass bulk values to my stored procedure using a data table as follows:

 var idlist = new DataTable();
        idlist.Columns.Add("sid", typeof(int));
        idlist.Columns.Add("suid", typeof(int));
        idlist.Rows.Add(new object[] {1, 1});
        idlist.Rows.Add(new object[] {1, 2});
        cmd.Parameters.Add(new SqlParameter("@SID", Convert.ToString(idlist)));

In SQL Server the stored procedure looks like this:

ALTER  PROCEDURE [dbo].[SUBNETTEMP]
(
@SID as IDLISTS READONLY
 )

AS
BEGIN

Create table [tempIDTable] (sid int, suid int)

Insert into [tempIDTable]

select * from @SID

END

IDLISTS is defined as table type as follows:

CREATE TYPE IDLISTS AS TABLE (
SID int, SUID int )
go

After running the program I am not sure why my stored procedure does not create temIDTable. I am not sure whether the stored procedure executed successfully or not? Can anyone pls help.

Thanks.

Answer 1

In your C# code, you must specify the sqlDBType to use a table-value parameter.

So try this:

SqlParameter myParam = cmd.Parameters.Add(new SqlParameter("@SID", idlist));
myParam.SqlDbType = SqlDbType.Structured;

See this MSDN page for more info and examples.