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response 后刷新页面

2024-07-10 06:38:34   231人阅读

response 后刷新页面

先要求点按钮生成文件，同时按钮变灰，文件生成好直接打开该文件，按钮可用。

一，给按钮增加点击后变灰，页面刷新变可用属性。

打开文件代码如下：

 //写出文件        System.Text.Encoding encoding = System.Text.Encoding.GetEncoding("gb2312");        HttpResponse response = HttpContext.Current.Response;        response.HeaderEncoding = encoding;        response.Charset = encoding.HeaderName;        response.Clear();        response.ContentEncoding = encoding;        response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(pdfFile.Name));        response.AddHeader("Content-Length", pdfFile.Length.ToString());        response.ContentType = "application/pdf";        response.WriteFile(pdfFile.FullName);        HttpContext.Current.ApplicationInstance.CompleteRequest();
打开文件

要弹出文件，页面请求会立刻结束。所以这时你把按钮的任何控制都不会执行。

二，aspx页面：增加一个iframe

 

 <iframe id="ifrm_popMessage" src="" frameborder="0" scrolling="no" align="middle"        style="position: absolute; z-index: 100; display: none; border: 1px #62A3D2 solid;">    </iframe>

三，aspx页面：增加JS脚本：

////打开文件        function OpenPdfFile() {            document.getElementById(‘ifrm_popMessage‘).src = "http://www.mamicode.com/OpenPdfFile.aspx?Rnd" + Math.random();        }

 四，生成文件结束后增加如下代码:

   

 ScriptManager.RegisterStartupScript(this.Page, ClientScript.GetType(), "myscript", "<script>OpenPdfFile();</script>", false);

五，OpenPdfFile 页面代码：

/// <summary>/// 用来生成PDF文件/// </summary>public partial class Admin_IEData_OpenPdfFile : System.Web.UI.Page{    /// <summary>    /// 页面加载    /// </summary>       protected void Page_Load(object sender, EventArgs e)    {                 DirectoryInfo di = new DirectoryInfo(Server.MapPath("~/File/"));            string strFileName = string.Format("{0}({1}){2}.pdf", di.FullName, SessionOperate.getLoginName(), "ddpdf");                        FileInfo pdfFile = new System.IO.FileInfo(strFileName);            WriteOutFile(pdfFile);            }    #region 写出文件    /// <summary>    /// 写出文件    /// </summary>    /// <param name="pdfFile">文件对象</param>    /// <returns>返回是否成功</returns>    protected bool WriteOutFile(FileInfo pdfFile)    {        //写出文件        System.Text.Encoding encoding = System.Text.Encoding.GetEncoding("gb2312");        HttpResponse response = HttpContext.Current.Response;        response.HeaderEncoding = encoding;        response.Charset = encoding.HeaderName;        response.Clear();        response.ContentEncoding = encoding;        response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(pdfFile.Name));        response.AddHeader("Content-Length", pdfFile.Length.ToString());        response.ContentType = "application/pdf";        response.WriteFile(pdfFile.FullName);        HttpContext.Current.ApplicationInstance.CompleteRequest();        return true;    }    #endregion}
Iframe页面代码

 

 

 


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