ExecuteNonQuery返回值为0 请各位大侠帮帮忙 等ing

public int uploadCaseInfoC2S(StringBuilder sb, int colum)
        {
            OleDbConnection conn;
            //OleDbDataAdapter adapter;
            //string sqlstr;
            int result = 0;
            int count = 0;
            string[,] strField = str2Field(sb, colum);
            using (conn = new OleDbConnection(this.connstr))
            {
                //conn.Open();
                OleDbCommand comm = new OleDbCommand("updateCaseInfo", conn);
                comm.CommandType = CommandType.StoredProcedure;
                OleDbParameter[] para ={  
                           new OleDbParameter("@caseName",OleDbType.VarChar,50),
                           new OleDbParameter("@institutionName",OleDbType.VarChar,50),
                           new OleDbParameter("@institutionNature",OleDbType.VarChar,50),
                           new OleDbParameter("@province",OleDbType.VarChar,50),
                           new OleDbParameter("@happenTime",OleDbType.DBTimeStamp),
                           new OleDbParameter("@caseNature",OleDbType.VarChar,50),
                           new OleDbParameter("@leakForm",OleDbType.VarChar,50),
                           new OleDbParameter("@caseResource",OleDbType.VarChar,50),
                           new OleDbParameter("@treatment",OleDbType.VarChar,100),
                           new OleDbParameter("@exeName",OleDbType.VarChar,10),
                           new OleDbParameter("@caseState",OleDbType.VarChar,10),
                                     };
                int query = 0;
                for (int t = 0; t < para.Length; t++)
                {
                    comm.Parameters.Add(para[t]);
                }
                for (int i = 0; i < strField.GetLength(0); i++)
                {
                    for (int j = 0; j < strField.GetLength(1); j++)
                    {
                        para[j].Value = strField[i, j];
                    }
                    try
                    {
                        if (conn.State == ConnectionState.Closed)
                            conn.Open();
                        if ((query = comm.ExecuteNonQuery()) > 0)
                            count += 1;
                        else
                            count += 0;
                    }
                    catch (Exception e)
                    {
                        Console.WriteLine(e.ToString());
                    }
                }
                Console.WriteLine("update {0} query {1}", count,query);
                if (count == strField.GetLength(0))
                    result = 1;
                return result;
            }
        }

6 个解决方案

#1

updateCaseInfo里面设置
set nocount on

#2

ExecuteNonQuery只返回影响行数，你的存储过程return(默认return）的值是不会显示的

也就是说，你在数据库的查询界面里执行这个存储过程下面如果显示影响行数：n，那么你的ExecuteNonQuery才可以看到数字

#3

引用 1 楼 net_lover 的回复:

updateCaseInfo里面设置
set nocount on

顶!

#4

CREATE PROCEDURE [dbo].[updateCaseInfo]
(
@caseName nvarchar(50),
@institutionName nvarchar(50),
@institutionNature nvarchar(50),
@province nvarchar(50),
@happenTime datetime,
@caseNature nvarchar(50),
@leakForm nvarchar(50),
@caseResource nvarchar(20),
@treatment nvarchar(50),
@exeName nvarchar(10),
@caseState nvarchar(10)
)
AS
SET NOCOUNT ON
update tablename
set 
c1=@institutionName,
c2=@institutionNature,
c3=@province,
c4=@happenTime,
c5=@caseNature,
c6=@leakForm,
c7=@exeName,
c8=@caseState
where c0=@caseName
这样的存储过程是不是有错误呀？

#5

数据库也没有update内容

#6

where c0=@caseName

可能是 @caseName 的值没弄好，单步看看