asp.net框架代码下载（aspnet web框架）

今天给各位分享asp.net框架代码下载的知识，其中也会对aspnet web框架进行解释，如果能碰巧解决你现在面临的问题，别忘了关注本站，现在开始吧！

本文目录一览：

• 1、asp.net如何使用框架
• 2、ASP.NET 中，实现download下载，弹出打开和保存对话框，不限制文件大小，跪求实现代码，谢谢了
• 3、asp.net 如何实现将服务器上的文件下载到本地？
• 4、ASP.NET下载功能代码
• 5、我用的是winxp系统,想装ASP.net但不知道怎样下载那个框架!急于求助!!!

asp.net如何使用框架

在一个页面中设置右边的框架iframe id="Right" name="Right" src="123.aspx"/iframe

点击左边框架的查询按钮，加入javascript代码： parent.document.getElementById("Right").src="123.aspx?"+parameters;

ASP.NET 中，实现download下载，弹出打开和保存对话框，不限制文件大小，跪求实现代码，谢谢了

思路很简单，读取服务器文件路径，然后再保存数据流，下面是实现代码：

（ps:因为要上班，来不及写很多注释，关键的地方加了几句注释哈）

using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using YTLib.Basic;

using YTLib.YTDBC;

using System.IO;

using System.Threading;

namespace siteadmin.admin

{

public partial class downfile : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

string strSQL = "";

YTNDBObject dbo = new YTNDBObject();

dbo.DataName = "Main";

Page.EnableViewState = false;

if(!IsPostBack)

{

string sid=Request["id"];

if(!YTLib.publicOP.IsNumString(sid)||sid==null)

sid="0";

strSQL = "select * from FileSource where ID=@ID";

dbo.PrepareCommand(strSQL);

dbo.SetCmdIntValue("@ID",int.Parse(sid));

DataTable dt=dbo.QueryData().Tables[0];

string sourceName = (string)dt.Rows[0]["FilePath"];

sourceName.Trim();//消除空格

string filesnames = sourceName.Substring(7, sourceName.Length - 8);

int index= sourceName.LastIndexOf(".");

string extend = sourceName.Substring(index+1);//扩展名

string fullPath = "~/uploaded/" + sourceName;

fullPath = Server.MapPath(fullPath);

//读出该资源的下载次数

int downloadtimes = 0;

downloadtimes = int.Parse(dt.Rows[0]["downloadCounts"].ToString());

Page.Response.Clear();

bool success = ResponseFile(Page.Request, Page.Response, filesnames, fullPath, 1024000);

if (!success) Response.Write("script language=\"javascript\"alert(\"Download file error\");window.location.href=\"../Download.aspx\"/script");

else

{

//记录下载次数

downloadtimes++;

string sqlStr = "update FileSource set downloadCounts=" + downloadtimes + " where ID=@IID";

dbo.PrepareCommand(sqlStr);

dbo.SetCmdIntValue("@IID",int.Parse(sid));

dbo.ExecuteNoQuery();

}

Response.Write("script language=\"javascript\"window.location.href=\"../Download.aspx\"/script");

}

}

public static bool ResponseFile(HttpRequest _Request, HttpResponse _Response, string _fileName, string _fullPath, long _speed)

{

try

{

FileStream myFile = new FileStream(_fullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);

BinaryReader br = new BinaryReader(myFile);

try

{

_Response.AddHeader("Accept-Ranges", "bytes");

_Response.Buffer = false;//不缓冲

long fileLength = myFile.Length;

long startBytes = 0;

double pack = 10240;

//10K bytes

int sleep = 200;

//每秒5次 即5*10K bytes每秒 int sleep = (int)Math.Floor(1000 * pack / _speed) + 1;

if (_Request.Headers["Range"] != null)

{

_Response.StatusCode = 206;

string[] range = _Request.Headers["Range"].Split(new char[] { '=', '-' });

startBytes = Convert.ToInt64(range[1]);

}

_Response.AddHeader("Content-Length", (fileLength - startBytes).ToString());

if (startBytes != 0)

{

//Response.AddHeader("Content-Range", string.Format(" bytes {0}-{1}/{2}", startBytes, fileLength-1, fileLength));

}

_Response.AddHeader("Connection", "Keep-Alive");

_Response.ContentType = "application/octet-stream";

_Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(_fileName, System.Text.Encoding.UTF8));

br.BaseStream.Seek(startBytes, SeekOrigin.Begin);

int maxCount = (int)Math.Floor((fileLength - startBytes) / pack) + 1;

for (int i = 0; i maxCount; i++)

{

if (_Response.IsClientConnected)

{

_Response.BinaryWrite(br.ReadBytes(int.Parse(pack.ToString())));

Thread.Sleep(sleep);

}

else

{

i = maxCount;

}

}

}

catch

{

return false;

}

finally

{

br.Close();

myFile.Close();

}

}

catch

{

return false;

}

return true;

}

}

}

asp.net 如何实现将服务器上的文件下载到本地？

给你提供一点代码：

string fileURL = this.Server.MapPath("你要下载的文件路径");//文件路径，可用相对路径

FileInfo fileInfo = new FileInfo(fileURL);

Response.Clear();

Response.AddHeader("content-disposition", "attachment;filename=" +

Server.UrlEncode(fileInfo.Name.ToString()));//文件名

Response.AddHeader("content-length", fileInfo.Length.ToString());//文件大小

Response.ContentType = "application/octet-stream";

Response.ContentEncoding = System.Text.Encoding.Default;

Response.WriteFile(fileURL);

ASP.NET下载功能代码

给你写个方法,你直接调用一下就可以了

public void DownLoad( )

{

string filePath = Server.MapPath( @"\UserFile\" );//这里注意了,你得指明要下载文件的路径.

if ( System.IO.File.Exists( filePath ) )

{

FileInfo file = new FileInfo( filePath );

Response.ContentEncoding = System.Text.Encoding.GetEncoding( "UTF-8" ); //解决中文乱码

Response.AddHeader( "Content-Disposition", "attachment; filename=" + Server.UrlEncode( file.Name ) ); //解决中文文件名乱码

Response.AddHeader( "Content-length", file.Length.ToString() );

Response.ContentType = "appliction/octet-stream";

Response.WriteFile( file.FullName );

Response.End();

}

}

希能给你带来帮助

我用的是winxp系统,想装ASP.net但不知道怎样下载那个框架!急于求助!!!

去microsoft 下载中心，搜寻Freamworks的下载。有1.0，2.0，3.0和3.5四个版本。每个版本都有SP更新包。

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