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破晓之阳原创『上传图片』之HtmlInputFile控件

2007-12-07 23:27 627 查看


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;




/**//// <summary>


/// 破晓之阳


/// 2007/12/07


/// http://user.qzone.qq.com/113605767

///开发环境 vs2005


/// </summary>




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("<script language='javascript'>alert('上传的文件不能大于100KB！！')</script>");


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("<script language='javascript'>alert('你选择的图片格式错误！！')</script>");


}


}


}


}



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。
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