从datagridview显示数据到reportviewer C#

Question

我有一个datagridview，我想将数据传递给reportviewer，这样我就可以轻松地打印和导出到pdf/excel。 请问我该怎么做？还是有其他解决方案可以实现我的目标？谢谢！ :)

Answer 1

既然你想把GridView的数据传给ReportViewer，你要做的第一件事就是检索gridview的数据源，如下所示：

BindingSource bs = (BindingSource)GridView1.DataSource;//You should first convert DataSourse into Binding Sourse
DataTable dt = (DataTable) bs.DataSource; //Get GridView data source to Data table

现在你在DataTable dt中获得了你的GridView数据，你可以将ReportViewer绑定到DataTable，如下所示：

ReportViewer ReportViewer1 = new ReportViewer(); //Your ReportViewer Control
ReportDataSource rds = new ReportDataSource("DataSet1_Customers_DataTable1",dt); // ReportViewerDataSource : ReportViewer is to be bind to this DataSource
ReportViewer1.LocalReport.DataSources.Clear(); // Clear the Previous DataSource of ReportViewer
ReportViewer1.LocalReport.DataSources.Add(rds); //bind ReportViewer1 to the new datasource(Which you wish)
ReportViewer1.LocalReport.Refresh(); // Refresh the ReportViewer Control, ReportViewer1 in this case

就是这样，你完成了！