/// <summary>
/// 导出Excel
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void btnExportExcel_Click(object sender, EventArgs e)
{
int count = 0;
var DataList = _logService.GetPagedList <DateTime?>(CtrPageIndex.CurrentPageIndex, CtrPageIndex.PageSize, ref count, null, c => c.LoginDate, false);
DataTable dt = ListToDataTable.ListToTable <sys_LoginLog>(DataList);
ExcelUtil.RenderToExcel(dt, Context, "日志.xls");
}