标签：style blog http color 文件 os
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();
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 = "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 }
标签：style blog http color 文件 os
原文地址：http://www.cnblogs.com/xbding/p/3816968.html
