将数据集作为参数从C＃传递到T-SQL存储过程

Question

I am attempting to pass a populated dataset from C# to a SQL Server stored procedure parameter, but I'm having trouble.

Here is my C# code:

if (tblNoMatch.Rows.Count > 0)
{
    pge.dbconn.ExecuteNonQuery("dbo.MySproc",
                               new SqlParameter("@MyTableParam", tblNoMatch),
                               new SqlParameter("@IsProcessed", "2")
                              );

    pge.dbconn.ShutDown();
}

where tblNoMatch is type DataSet , and populated with a column ID . The dataset variable is filled with 40 rows of ID values.

Here is my SQL end:

IF TYPE_ID(N'MyTable') IS NULL
    CREATE TYPE dbo.MyTable AS TABLE(BatchID INT);
GO

ALTER PROCEDURE [dbo].[MySproc] 
    @MyTableParam AS dbo.MyTable READONLY,
    @IsProcessed [smallint] = 0
AS
    IF (SELECT COUNT(*) FROM @MyTableParam) > 0
        --Process Records from Batch 
    BEGIN
        UPDATE [dbo].[MyTable]
        SET [IsProcessed] = ISNULL(@IsProcessed, IsProcessed)
        WHERE [ID] IN (SELECT ID FROM @MyTableParam)
    END

When I sniff the throughput with SQL Server Profiler tool, I don't even see @MyTableParam getting passed, and on the SQL Server end, it's getting ignored entirely.

What am I doing wrong here?

Many thanks in advance!

EDIT:

I made this alteration as I know the parameter needs to be of type Structured , but this unfortunately did not do the trick for me either:

if (tblNoMatch.Rows.Count > 0)
{
    var tblParameter = new SqlParameter
                           {
                                ParameterName = "@MyTableParam",
                                SqlDbType = SqlDbType.Structured,
                                Value = tblNoMatch
                           };

    pge.dbconn.ExecuteNonQuery("dbo.MySproc", tblParameter,
                               new SqlParameter("@IsProcessed", "2"));

    pge.dbconn.ShutDown();
}

What else am I missing here?

Answer 1

尝试按以下方式指定TypeName ...

tblParameter.TypeName = "dbo.MyTable";