[在VS2015 / C＃中使用存储过程创建ADO只读SQL数据记录集

Question

我想在带有C＃的VS2015中使用存储过程创建ADO只读SQL数据记录集。有没有办法做到这一点？

我正在使用的代码是。问题是，当我尝试创建Command对象来设置要使用的存储过程时，会引发错误。我知道我遗漏了一些东西，但是我无法在MS帮助文件中找到任何提供有关如何执行此操作的示例的信息。我不想使用Linq！您能提供的任何帮助将不胜感激。我已经评论了MyCommand Lines。

try
{

  string connString = AdoHelper.ConnectionString;
  var myConnection = new SqlConnection(connString);
  CommandType myCommand = System.Data.CommandType.StoredProcedure;

  using (myConnection)
  {
   myConnection.Open();
   //myCommand. = myConnection;
   //myCommand.CommandType = CommandType.StoredProcedure;
   //myCommand.CommandTimeout = 540;
     if (this.optInStockOnly.Checked == true)
     {
      myCommand.CommandText = "InventoryGetLookupDataInStockOnly"; //Stored procedure Name
     }
     else
     {
      myCommand.CommandText = "InventoryGetLookupData";     //Stored procedure Name 
     }
     myCommand.Parameters.AddWithValue(parameterName: "@CurrentWareHouseCode", 
     value: MyGlobals.CurrentUsersInfo.CurrentUserWarehousecode);

     SqlDataReader reader = myCommand.ExecuteReader();
     if (reader.Read())
     {
      //set recordset here and do rest of the stuff I want
     }

Answer 1

如注释中所述，您没有将命令链接到连接对象。

查看此示例：

private static void CreateCommand(string queryString,
    string connectionString)
{
    using (SqlConnection connection = new SqlConnection(
               connectionString))
    {
        SqlCommand command = new SqlCommand();
        command.Connection = connection;
        command.CommandTimeout = 15;
        command.CommandType = CommandType.Text; // CommandType.StoredProcedure; in case this was a Proc
        command.CommandText = queryString; // Proc name

        connection.Open();
        SqlDataReader reader = command.ExecuteReader();
        while (reader.Read())
        {
            Console.WriteLine(String.Format("{0}, {1}",
                reader[0], reader[1]));
        }
    }
}

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