private void ExportToExcel(object sender, RoutedEventArgs e)
{
///弹出文件保存框，选择路径和Excel文件
///将Datagrid或Query 导出至Excel
///
System.Windows.Controls.DataGrid DataGrid = datagridinbound;
//ExportExcel.Export(DataGrid);
// DataTable dt = ((DataView)datagridinbound.ItemsSource).Table;
ExportExcel.DataTableToExcel(ExportExcel.Returntable(DataGrid));
}