本文实例讲述了asp.net中MVC借助Iframe实现无刷新上传文件的方法。分享给大家供大家参考。具体实现方法如下：

html:

复制代码 代码如下:<div id="uploadwindow" style="display: none;">

<form action="/ShopActivitys/ImportActivityItems" id="form1" name="form1" enctype="multipart/form-data" method="post" target="hidden_frame">

<table style="width: 300px;">

<tr>

<td style="width: 80px; display: block;">选择文件：</td>

<td>

<input type="file" id="file" name="activityitemsfile" />

</td>

</tr>

</table>

<input type="submit" value="上传文件" />

<iframe name='hidden_frame' id="hidden_frame" style='display: none'></iframe>

</form>

</div>

CallBack函数：

复制代码 代码如下:var UploadFun = {

CallBack: function (msg) {

$.messager.alert('上传文件', msg, 'info');

}

};

后台处理：

复制代码 代码如下:public void ImportActivityItems()

{

string error = "导入成功";

try

{

var f = Request.Files["activityitemsfile"];

var fpath = Server.MapPath("/Upload/活动链接数据/");

if (!Directory.Exists(fpath))

Directory.CreateDirectory(fpath);

string fullfilename = fpath + DateTime.Now.ToFileTime() + f.FileName;

f.SaveAs(fullfilename);

}

catch (Exception ex)

{

Logger.Error(ex.ToString());

error = "导入过程中发生错误，请重试";

}

Response.Write("<script type=\"text/javascript\"> parent.UploadFun.CallBack(\"" + error + "\")</script>");

}

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