.aspx
<table>
<tr>
<td>
<input id="txtUrl" name="txtUrl" runat="server" type="file"/>
</td>
</tr>
</table>
<table><tr>
<td> </td>
<td><asp:UpdatePanel ID="UpdatePanel1" runat="server"><ContentTemplate><input name="Submit2" id="Submit2" type="button" class="anniu01" value="提交" onserverclick="btnSubmit_Click" runat="server"/></ContentTemplate><Triggers>
<asp:AsyncPostBackTrigger ControlID="Submit2" >
</asp:AsyncPostBackTrigger>
</Triggers>
</asp:UpdatePanel></td>
</tr>
</table>
.aspx.cs
用了.
Request.Form["txtUrl"] 不好使呀.
在后台应该用什么方法取得 input type=file 值呢
------解决方案--------------------------------------------------------
直接hidden1.value=document.getElementById("file1").value
隐藏域
------解决方案--------------------------------------------------------
txtUrl.PostedFile.SaveAs("d:\name.jpg")
------解决方案--------------------------------------------------------
this.txtUrl.Value
------解决方案--------------------------------------------------------
- C# code
HttpFileCollection files = HttpContext.Current.Request.Files;try { for(int iFile = 0; iFile < files.Count; iFile++) { ///'检查文件扩展名字 HttpPostedFile postedFile = files[iFile]; string fileName, fileExtension; fileName = System.IO.Path.GetFileName(postedFile.FileName); if (fileName != "") { fileExtension = System.IO.Path.GetExtension(fileName); strMsg.Append("上传的文件类型：" + postedFile.ContentType.ToString() + "<br>"); strMsg.Append("客户端文件地址：" + postedFile.FileName + "<br>"); strMsg.Append("上传文件的文件名：" + fileName + "<br>"); strMsg.Append("上传文件的扩展名：" + fileExtension + "<br><hr>"); ///'可根据扩展名字的不同保存到不同的文件夹 ///注意：可能要修改你的文件夹的匿名写入权限。 postedFile.SaveAs(System.Web.HttpContext.Current.Request.MapPath("images/") + fileName); } } strStatus.Text = strMsg.ToString(); return true; } catch(System.Exception Ex) { strStatus.Text = Ex.Message; return false; }
------解决方案--------------------------------------------------------
HttpPostedFile xx=request.Files["前台控件名"]
------解决方案--------------------------------------------------------
或
HttpFileCollection xx = Request.Files
HttpPostedFile yy=xx[0]
------解决方案--------------------------------------------------------
- HTML code
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server"> </head><body> <form id="form1" runat="server"> <input id="File1" runat="server" type="file" /> <asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="Button" /> </form></body></html>