WPF中Datagrid控件添加行号

　　　　　/// <summary>
        /// 导入Excel文件按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void InputExcelFile_Click(object sender, RoutedEventArgs e)
        {
            //将数据绑定到datagird控件中
            DataGridSheet.ItemsSource = readbynpoi.InputWorkbookFromExcel(GetExcelFilePath());
            DataGridSheet.HeadersVisibility = DataGridHeadersVisibility.Row;
            DataGridSheet.RowHeaderWidth = 30;
            //LoadingRow事件
            DataGridSheet.LoadingRow += DataGridSheet_LoadingRow;
        }

        private void DataGridSheet_LoadingRow(object sender, DataGridRowEventArgs e)
        {
            e.Row.Header = e.Row.GetIndex() + 1;//递增行号
        }