破晓之阳原创『上传图片』之HtmlInputFile控件

 

cs代码：

 

using  System;
using  System.Data;
using  System.Configuration;
using  System.Collections;
using  System.Web;
using  System.Web.Security;
using  System.Web.UI;
using  System.Web.UI.WebControls;
using  System.Web.UI.WebControls.WebParts;
using  System.Web.UI.HtmlControls;
/**/ /// 

/// 破晓之阳
/// 2007/12/07
/// http://user.qzone.qq.com/113605767
///开发环境 vs2005
/// 

public   partial   class  inputfile_inputfile : System.Web.UI.Page
... {
    protected void Page_Load(object sender, EventArgs e)
    ...{

    }
    protected void ButUpload_Click(object sender, EventArgs e)
    ...{
        //string fillFileName = this.File1.PostedFile.FileName;
        string fillFileName = this.File1.Value;//最好用上面的，会比较好。
        //string fileName = fillFileName.Substring(fillFileName.LastIndexOf("/")+1);
        string type = fillFileName.Substring(fillFileName.LastIndexOf(".")+1);
        string typeS = type.ToLower();
        int length = this.File1.PostedFile.ContentLength;
        if (length > 100*1024)
        ...{
            Response.Write("alert('上传的文件不能大于100KB！！')");
            return;
        }
        else
        ...{
            if (typeS == "bmp" || typeS == "gif" || typeS == "jpg")
            ...{
                string time = System.DateTime.Now.ToString("yyyyMMddhhddssfff");
                //this.File1.PostedFile.SaveAs(Server.MapPath("up") + "/" + fileName);
                this.File1.PostedFile.SaveAs(Server.MapPath("up") + "/" + time + "." + type);
                //this.Image1.ImageUrl = "up/" + fileName;
                string str = Request.Url.AbsoluteUri;
                string url = str.Substring(0, str.LastIndexOf('/')) + "/up/" + time + "." + type;
                this.Image1.ImageUrl = url;//也可以用上面注释的一行替换下面的三行。
            }
            else
            ...{
                Response.Write("alert('你选择的图片格式错误！！')");
            }
        }
    }
}

 

aspx代码：

 

<% @ Page Language = " C# "  AutoEventWireup = " true "  CodeFile = " inputfile.aspx.cs "  Inherits = " inputfile_inputfile "   %>

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 " >
     < title > 上传文件 title >
head >
< body >
     < form id = " form1 "  runat = " server " >
     < div >         
         < input id = " File1 "  type = " file "  runat = " server "   />
         < asp:Button ID = " ButUpload "  runat = " server "  Text = " 上传 "  OnClick = " ButUpload_Click "   /> div >
         < div >< asp:Image ID = " Image1 "  runat = " server "  ImageUrl = " ~/inputfile/image/male.gif "   /> div >
     form >
body >
html >

源代码下载，请点击 http://download.csdn.net/source/302608这个页面。