Question

我正在尝试修复这个旧的asp.net页面并且我不断获得'过程或函数Top100指定了太多参数。这个错误只发生在你点击网站的“前10名”按钮我不知道该怎么做，因为我对c＃很新。我还不知道我的方式。

public SqlDataReader ExecuteQuery(string strSql)
{
    MsSqlConnection = OpenConnection();
    SqlCommand command = new SqlCommand();
    command.CommandType = CommandType.Text;
    command.CommandText = strSql;
    command.Connection = MsSqlConnection;
    MsSqlConnection.Open();
    SqlDataReader reader = command.ExecuteReader();
    return reader;
}

Top100代码：

public DataTable Top100(int nation, int class_)
{

    string strSql = "exec DragonRajaDB.dbo.Top100 " + Convert.ToInt32(nation) + "," + Convert.ToInt32(class_);

    DataTable dt = new DataTable();
    dt.Columns.Add(new DataColumn("Rank", typeof(int)));
    dt.Columns.Add(new DataColumn("Name", typeof(String)));
    dt.Columns.Add(new DataColumn("Lev", typeof(int)));
    dt.Columns.Add(new DataColumn("Class", typeof(String)));
    dt.Columns.Add(new DataColumn("Nation", typeof(String)));
    dt.Columns.Add(new DataColumn("Guild", typeof(String)));
    dt.Columns.Add(new DataColumn("GuildLogoURL", typeof(String)));
    using (SqlDataReader reader = ExecuteQuery(strSql))
    {
        int i = 1;
        while (reader.Read())
        {
            DataRow dr = dt.NewRow();
            dr[0] = i;
            dr[1] = reader.GetSqlString(0).Value;
            dr[2] = reader.GetSqlInt32(1).Value;
            int playerClass = reader.GetSqlInt32(2).Value;
            switch (playerClass)
            {
                case 0:
                    dr[3] = "Warrior";
                    break;
                case 1:
                    dr[3] = "Thief";
                    break;
                case 2:
                    dr[3] = "Archer";
                    break;
                case 3:
                    dr[3] = "Wizard";
                    break;
                case 4:
                    dr[3] = "Priest";
                    break;
                default:
                    dr[3] = "Unknown";
                    break;
            }
            dr[4] = reader.GetSqlString(3).Value;
            if (reader.GetSqlString(4).IsNull)
            {
                dr[5] = "";
                dr[6] = "";
            }
            else
            {
                dr[5] = reader.GetSqlString(4).Value;
                int guildCode = reader.GetSqlInt32(5).Value;
                dr[6] = "guildlogos/guild" + guildCode.ToString() + ".gif";
            }

            dt.Rows.Add(dr);
            i++;
        }
    }

    return dt;
}

这是存储过程：

USE [Dragonrajadb]
GO
/****** Object:  StoredProcedure [dbo].[Top100]    Script Date: 10/21/2014 11:02:26 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER Procedure [dbo].[Top100]              
@nation int = 0


AS              
 DECLARE @SQLString NVARCHAR(500)              

 SET @SQLString = N'SELECT top 100 name, lev, exp, nation from chr_info where name not in (''GM01'') '              
 if @nation <> 0        
 begin              
  if @nation = 6        
  begin        
   set @SQLString = @SQLString + ' and nation in (6,22,38,14,30,38)'           
  end        
  else if @nation = 3        
  begin        
   set @SQLString = @SQLString + ' and nation not in (4,20,12,28,36,6,22,38,14,30,38)'           
  end          
  else if @nation = 4        
  begin        
   set @SQLString = @SQLString + ' and nation in (4,20,12,28,36)'           
  end          
 end        
 set @SQLString = @SQLString + ' order by lev desc, exp desc'              
 EXECUTE sp_executesql @SQLString

Answer 1

程序Top100只有一个参数，即：nation：

ALTER Procedure [dbo].[Top100]              
@nation int = 0 -- just one parameter
AS
...

您正在尝试指定第二个参数：class：

string strSql = "exec DragonRajaDB.dbo.Top100 " + nation + "," + class_;

因此，删除class参数：

string strSql = "exec DragonRajaDB.dbo.Top100 " + nation

过程或函数Top100指定了太多参数

1 个答案: