导出excel时,弹出的下载窗口一闪而过

在导出Excel数据时, 通过输出流导出, 但是弹出的下载窗口一闪而过. 问题代码如下:

<ext:GridPanel ID="SLGridPanel" runat="server" Title="查询结果" Margins="0 0 5 5" Height="600"

Icon="UserSuit" Region="Center" Frame="true" StripeRows="true" TrackMouseOver="true"

EnableHdMenu="true" EnableColumnHide="true">

<TopBar>

<ext:Toolbar ID="Toolbar2" runat="server">

<Items>

<ext:Button ID="Button5" runat="server" Text="To Excel" AutoPostBack="true" OnClick="btnToExcel_DirectClick"

Icon="PageExcel">

</ext:Button>

</Items>

</ext:Toolbar>

</TopBar>

<Store>

上面红色字体下载按钮控件的代码块, 必须放在GridPanel 控件中. 而GridPanel即是要到处的数据列表.

其次:

protected void btnToExcel_DirectClick(object sender,
EventArgs e)

{

string strWhere = String.Empty;

if (Session["strWhere"] != null)

{

strWhere = Session["strWhere"].ToString();

}

IList<项目信息Info> resultDt = 项目信息dal.GetAll(strWhere);

string json = JsonConvert.SerializeObject(resultDt);

StoreSubmitDataEventArgs eSubmit = new StoreSubmitDataEventArgs(json, null);

XmlNode xml = eSubmit.Xml;

this.Response.Clear();

this.Response.ContentType = "application/vnd.ms-excel";

this.Response.AddHeader("Content-Disposition", "attachment; filename=submittedData.xls");

XslCompiledTransform xtExcel = new XslCompiledTransform();

xtExcel.Load(Server.MapPath("Excel.xsl"));

xtExcel.Transform(xml, null, this.Response.OutputStream);

this.Response.End();

}

函数参数必须是EventArgs类型, 否则出错.