我实在没分了,帮我看看这个winform绑定水晶报表的问题吧???跪求!!!
我建立了一个dataset,然后建立form在里面的界面添加了一个reportViewer1,并将其指向了Report1.rdl
下面是我的代码
SqlConnection con = new SqlConnection("server=192.168.1.212;database=BuDBA;uid=SA;pwd=tjsc;");
SqlCommand command1 = new SqlCommand("select top 1 HTH from BusinessInfo", con);
SqlDataAdapter ada1 = new SqlDataAdapter(command1);
DataSet1 myData = new DataSet1();
ada1.Fill(myData);
con.Close();
reportViewer1.LocalReport.DataSources.Clear();
reportViewer1.LocalReport.DataSources.Add(new ReportDataSource("BusinessInfo", myData.Tables["BusinessInfo"]));
this.reportViewer1.RefreshReport();
可是运行后报错说:尚未为数据源dataset1提供数据源实例,这个究竟是怎么回事啊?