使用企业库将数据表从ASP.NET传递到SQL Server [英] Pass (Data Table) to SQL Server From ASP.NET using Enterprise Library

问题描述

     public void updateSkills(DataTable candidateSkillSets)
     {
         string sqlCommand = "Sp_Candidate";
         DbCommand dbCommand = db.GetStoredProcCommand(sqlCommand);
         db.AddInParameter(dbCommand, "candidateSkillSets",DbType.Object, candidateSkillSets);
         db.ExecuteNonQuery(dbCommand);
     }

我有类似上面的方法，这里我将数据表传递给通过添加参数存储过程。 DbType.Object不采用数据表类型。我知道在ADO中我们可以使用 SqlDbType.Structured，但是对于企业libray来说，它是行不通的。我必须改用什么？

I have a method like the above, here i am passing the datatable to the stored procedure by adding the parameter."DbType.Object" is not taking the datatable type. I know in ADO we can use "SqlDbType.Structured", but for enterprise libray it is not working. What i have to use instead?

执行命令时出现以下错误

I am getting the following error while executing the command

传入的表格格式数据流（TDS）远程过程调用（RPC）
协议流不正确。参数1（ @candidateSkillSets）：
数据类型0x62（sql_variant）无效类型特定的
元数据的类型。

"The incoming tabular data stream (TDS) remote procedure call (RPC) protocol stream is incorrect. Parameter 1 ("@candidateSkillSets"): Data type 0x62 (sql_variant) has an invalid type for type-specific metadata."

推荐答案

我必须修改@ eduardo的代码，可让我在企业库中工作：

I have to modify @eduardo's code to make me work in my case with Enterprise Library:

    public int Insert(int id, DTO mnemonics)
    {
        DatabaseProviderFactory factory = new DatabaseProviderFactory();
        Database Db = factory.CreateDefault();

        using (var dbCommand = Db.GetStoredProcCommand("spINSERT"))
        {
            using (var table = new DataTable())
            {
                table.Columns.Add("Key", typeof(string));
                table.Columns.Add("Value", typeof(string));
                foreach (KeyValuePair<string, string> item in mnemonics.data)
                {
                     var row = table.NewRow();
                     row["Key"] = item.Key;
                     row["Value"] = item.Value;
                     table.Rows.Add(row);
                }

                Db.AddInParameter(dbCommand, "id", DbType.int, id);
                SqlParameter p = new SqlParameter("MNEMONICS", table);
                p.SqlDbType = SqlDbType.Structured;
                dbCommand.Parameters.Add(p);

                Db.ExecuteNonQuery(dbCommand);
            }
        }
    }

我在SQL Server中的类型：

My type in SQL Server:

CREATE TYPE [dbo].[StringDict] AS TABLE(
    [Key] [varchar](max) NULL,
    [Value] [varchar](max) NULL
)

I希望能帮助到某人

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