在本地报告处理过程中出现错误 - C＃Windows窗体VS2010

Question

我想在客户端模式下使用SQL Server Reporting Services，但有些事情会发飙。 我有两个表在数据库“IEPL_Attendance_DB”： 员工（EmployeeID，EmployeeName）和EmployeeTimeIn（EID，Time_In，Date_Ref，StateFlag） 我想在Windows窗体（Visual Studio 2010中的C＃）中显示报表。该报告应该是下面的查询结果：

select e1.EID,e.EmployeeName,convert(varchar(5),SUM(e1.HoursConsumed)/3600)+':'+convert(varchar(5),SUM(e1.HoursConsumed)%3600/60)+':'+convert(varchar(5),(SUM(e1.HoursConsumed)%60)) as workingtime, CONVERT(VARCHAR(10),e1.Date_Ref,111) as Date_Ref 
from Employee as e, EmployeeTimeIn as e1 
where e.EmployeeID = e1.EID 
group by e1.Date_Ref,e1.EID,e.EmployeeName; 

我发现这篇文章：http://arcanecode.com/2009/03/23/using-sql-server-reporting-services-in-client-mode/，这一步的过程说明步创建的报告，但是当我运行我的项目，我看到下面的报告窗口错误：
一种数据源实例尚未针对该数据源提供EmployeeAttendanceReport

这是我的代码：

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Windows.Forms; 
//Add these to the standard list above 
using System.Data.Sql; 
using System.Data.SqlClient; 
using Microsoft.Reporting.WinForms; 

namespace EmployeeManager 
{ 
public partial class Form1 : Form 
{ 

    public Form1() 
    { 
     InitializeComponent(); 
    } 

    private void Form1_Load(object sender, EventArgs e) 
    { 

     //this.reportViewer1.RefreshReport(); 

     // Set the processing mode for the ReportViewer to Local 
     reportViewer1.ProcessingMode = ProcessingMode.Local; 

     LocalReport localReport = reportViewer1.LocalReport; 
     localReport.ReportPath = @"F:\Muhammad Anees\Time In\WpfApplication1\EmployeeManager\AttendanceReport.rdlc"; 

     DataSet dataset = new DataSet("EmployeeAttendanceReport"); 

     // Get the sales order data 
     GetCustomerOrders(ref dataset); 

     // Create a report data source for the sales order data 
     ReportDataSource dsCustomers = new ReportDataSource(); 
     dsCustomers.Name = "EmployeeAttendanceReport_EmployeeAttendanceReport"; 
     dsCustomers.Value = dataset.Tables["Employee"]; 

     localReport.DataSources.Add(dsCustomers); 

     // Refresh the report 
     reportViewer1.RefreshReport(); 
    } 

    private void GetCustomerOrders(ref DataSet dsNorthwind) 
    { 
     string sqlCustomerOrders = "SELECT e1.EID" 
      + " ,e.EmployeeName" 
      + " ,CONVERT(VARCHAR(10),e1.Date_Ref,111) as Date_Ref" 
      + " ,convert(varchar(5),SUM(e1.HoursConsumed)/3600)+':'+convert(varchar(5),SUM(e1.HoursConsumed)%3600/60)+':'+convert(varchar(5),(SUM(e1.HoursConsumed)%60)) as workingtime" 
      + " FROM Employee as e, EmployeeTimeIn as e1" 
      + " WHERE e.EmployeeID=e1.EID" 
      + " GROUP BY e1.Date_Ref,e1.EID,e.EmployeeName"; 

     SqlConnection connection = new 
      SqlConnection("Data Source=AZEEMPC; " + 
         "Initial Catalog=IEPL_Attendance_DB; " + 
         "Trusted_Connection = true;"); 

     SqlCommand command = 
      new SqlCommand(sqlCustomerOrders, connection); 

     SqlDataAdapter EmployeeAttendanceReportAdapter = new 
      SqlDataAdapter(command); 

     EmployeeAttendanceReportAdapter.Fill(dsNorthwind, "EmployeeAttendanceReport"); 

    } 
} 
} 

说明：
1. SQL查询工作正常，我可以在sql server management studio中看到输出这个查询。
2.以下是DataSet的属性：

请指教！

Answer 1

看起来您的报告数据源名称与您在ReportDataSource类的Name属性中提供的名称不匹配。该报告期望EmployeeAttendanceReport。你可能想尝试在你的代码改变Name属性设置为：

dsCustomers.Name = "EmployeeAttendanceReport"; 

Answer 2

我知道这是晚两年，但我希望这可以帮助别人

期间有同样的问题（发生我的错误本地报告处理，报告处理期间发生错误，数据集名称），我发现连接字符串有问题;我不得不从使用Windows身份验证切换到SQL身份验证，然后我的报告工作。

显然报表数据源名称必须与您通过ReportDataSource对象提供布赖恩骑士建议的名称相匹配