C# 将Datatable作为参数，传入存储过程

//创建一个静态方法 
public static DataSet fnInsertSingleUser(DataTable v_dt, params string[] param)
        {
            try
            {
                SqlConnection cn = new SqlConnection(connectionString);//connertionString链接数据库字符串
                SqlCommand cmd = cn.CreateCommand();
                cmd.CommandType = CommandType.StoredProcedure;
                cmd.CommandText = @"" + param[0];
                SqlParameter p = cmd.Parameters.AddWithValue("@User", v_dt);
　　　　　　　　　　//参数可以随意增加
                SqlParameter pCode = cmd.Parameters.AddWithValue("@pCode", param[1]);
                SqlParameter gsdm = cmd.Parameters.AddWithValue("@gsdm", param[2]);
                SqlParameter khdm = cmd.Parameters.AddWithValue("@khdm", param[3]);
                SqlParameter qy = cmd.Parameters.AddWithValue("@qy", param[4]);

                DataSet ds = new DataSet();
                SqlDataAdapter da = new SqlDataAdapter(cmd);
                da.Fill(ds);
                return ds;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

IF EXISTS ( SELECT  A = 1
            FROM    sys.objects
            WHERE   name = ‘PRCreate ‘
                    AND type = ‘P‘ ) 
    DROP PROCEDURE dbo.PRCreate
 
go
 
IF EXISTS ( SELECT  A = 1
            FROM    sys.table_types
            WHERE   name = ‘tempPR ‘
                    AND is_user_defined = 1 ) 
    DROP TYPE dbo.tempPR


go

CREATE TYPE dbo.tempPR AS TABLE
(
PT_PCURR  decimal(15, 2), --这2个字段必须与传入的C# datatable中 字段的先后顺序一致
MATNR   varchar(18)--
)


go


CREATE PROCEDURE dbo.PRCreate
    (
      @User AS dbo.tempPR READONLY, --C# datatable参数
      @pCode varchar(50),
      @gsdm varchar(50),
      @khdm varchar(50),
      @qy varchar(50)
    )
AS 
    BEGIN
　　SELECT * FROM @User 
　　END

            DataSet ds = new DataSet();
            ds = SqlHelper.fnInsertSingleUser(dt, "PRCreate", param[0], param[2], param[3], param[4]);//在存储过程中处理，返回结果集