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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; } }

SQL

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.tempPRgoCREATE 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)--)goCREATE 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

调用

            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

调用时注意传入的参数必须与存储过程中 @User @pCode @gsdm @khdm @qy 的参数一致(见第一段代码)

 

重点:

1、就是传入存储过程的Datatable参数的字段先后顺序,必须与在存储过程中创建的表字段的先后顺序一致

2、调试:用一句select语句,返回一个DataSet到C#中看看,传入datatable是否正确

C# 将Datatable作为参数,传入存储过程