RDLC报表---自定义数据集

  
    

   
     
   
     //
   
     连接字符串
   
     

   
      
   
     string
   
      connstr 
   
     =
   
      
   
     "
   
     Data Source=.;Initial Catalog=WWALMDB;User ID=sa;Password=sqlsql
   
     "
   
     ;

 
   
     //
   
     新建连接
   
     

   
      SqlConnection connection 
   
     =
   
      
   
     new
   
      SqlConnection(connstr);

 
   
     //
   
     查询命令
   
     

   
      SqlCommand command 
   
     =
   
      
   
     new
   
      SqlCommand(textBoxSQL.Text, connection);

 
   
     //
   
     适配器
   
     

   
      SqlDataAdapter adapter 
   
     =
   
      
   
     new
   
      SqlDataAdapter(command);

 
   
     //
   
     数据集
   
     

   
      DataSet ds 
   
     =
   
      
   
     new
   
      DataSet();

 
   
     //
   
     查询并填充
   
     

   
      
   
     try
   
     
 {
 connection.Open();
 adapter.Fill(ds);
 }
 
   
     catch
   
      (Exception ex)
 {
 MessageBox.Show(ex.Message);
 }
 
   
     finally
   
     
 {
 connection.Close();
 command.Dispose();
 connection.Dispose();
 }

 
   
     //
   
     指定rdlc报表
   
     

   
      
   
     this
   
     .reportViewer1.LocalReport.ReportEmbeddedResource 
   
     =
   
      
   
     "
   
     FormReport.EventReport.rdlc
   
     "
   
     ;

 
   
     //
   
     清空reportviewer先前的数据源
   
     

   
      
   
     this
   
     .reportViewer1.LocalReport.DataSources.Clear();

 
   
     //
   
     新建数据源
   
     

   
      ReportDataSource rs 
   
     =
   
      
   
     new
   
      ReportDataSource();
 rs.Name 
   
     =
   
      
   
     "
   
     EventHistory
   
     "
   
     ;
   
     //
   
     "EventHistory"是rdlc报表Tablib属性下的数据集名称
   
     

   
      rs.Value 
   
     =
   
      ds.Tables[
   
     0
   
     ];

 
   
     //
   
     添加数据源
   
     

   
      
   
     this
   
     .reportViewer1.LocalReport.DataSources.Add(rs);

 
   
     //
   
     显示数据
   
     

   
      
   
     this
   
     .reportViewer1.RefreshReport();