*^_^*怎么获得远程网络上文件的大小(还有进来看吧!)*^_^*

Question

不太清楚,不过一定跟System.IO这个命名空间有关，祝你好运！

Answer 1

下载文件的时候显示当前已经下载的字节数?read the stream and show the byte[]

Answer 2

就是像flashget里那样，文件总的大小，目前完成数。

Answer 3

下面的代码可能对你会有用，这时所有的代码，你帖到vs.net里试试。
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;using Westwind.Tools.Http;
using System.Threading;namespace wwHTTP
{
/// <summary>
/// Summary description for wwHttpMultiThread.
/// </summary>
public class wwHttpMultiThread : System.Windows.Forms.Form
{
private System.Windows.Forms.Button cmdGo;
private System.Windows.Forms.TextBox txtUrl;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.TextBox txtUrl2;
public System.Windows.Forms.Label lblResult;
public System.Windows.Forms.Label lblResult2;
public System.Windows.Forms.ProgressBar oProgress;
public System.Windows.Forms.ProgressBar oProgress2;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null; public wwHttpMultiThread()
{
//
// Required for Windows Form Designer support
//
InitializeComponent(); //
// TODO: Add any constructor code after InitializeComponent call
//
} /// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.cmdGo = new System.Windows.Forms.Button();
this.txtUrl = new System.Windows.Forms.TextBox();
this.label1 = new System.Windows.Forms.Label();
this.label2 = new System.Windows.Forms.Label();
this.txtUrl2 = new System.Windows.Forms.TextBox();
this.lblResult = new System.Windows.Forms.Label();
this.lblResult2 = new System.Windows.Forms.Label();
this.oProgress = new System.Windows.Forms.ProgressBar();
this.oProgress2 = new System.Windows.Forms.ProgressBar();
this.SuspendLayout();
// 
// cmdGo
// 
this.cmdGo.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.cmdGo.Location = new System.Drawing.Point(403, 195);
this.cmdGo.Name = "cmdGo";
this.cmdGo.Size = new System.Drawing.Size(89, 25);
this.cmdGo.TabIndex = 12;
this.cmdGo.Text = "&Go";
this.cmdGo.Click += new System.EventHandler(this.cmdGo_Click);
// 
// txtUrl
// 
this.txtUrl.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.txtUrl.Location = new System.Drawing.Point(16, 33);
this.txtUrl.Name = "txtUrl";
this.txtUrl.Size = new System.Drawing.Size(475, 21);
this.txtUrl.TabIndex = 11;
this.txtUrl.Text = "http://www.west-wind.com/presentations/dotnetwebservices/DotNetWebServices.asp";
// 
// label1
// 
this.label1.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.label1.Location = new System.Drawing.Point(16, 17);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(88, 13);
this.label1.TabIndex = 13;
this.label1.Text = "First site Url:";
// 
// label2
// 
this.label2.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.label2.Location = new System.Drawing.Point(16, 115);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(88, 13);
this.label2.TabIndex = 14;
this.label2.Text = "Second site Url:";
// 
// txtUrl2
// 
this.txtUrl2.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.txtUrl2.Location = new System.Drawing.Point(16, 131);
this.txtUrl2.Name = "txtUrl2";
this.txtUrl2.Size = new System.Drawing.Size(475, 21);
this.txtUrl2.TabIndex = 15;
this.txtUrl2.Text = "http://www.west-wind.com/presentations/dotnetwebservices/DotNetWebServicesData.as" +
"p";
// 
// lblResult
// 
this.lblResult.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.lblResult.Location = new System.Drawing.Point(16, 73);
this.lblResult.Name = "lblResult";
this.lblResult.Size = new System.Drawing.Size(475, 22);
this.lblResult.TabIndex = 16;
// 
// lblResult2
// 
this.lblResult2.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.lblResult2.Location = new System.Drawing.Point(16, 171);
this.lblResult2.Name = "lblResult2";
this.lblResult2.Size = new System.Drawing.Size(475, 12);
this.lblResult2.TabIndex = 17;
// 
// oProgress
// 
this.oProgress.Location = new System.Drawing.Point(16, 58);
this.oProgress.Name = "oProgress";
this.oProgress.Size = new System.Drawing.Size(475, 14);
this.oProgress.Step = 5;
this.oProgress.TabIndex = 18;
// 
// oProgress2
// 
this.oProgress2.Location = new System.Drawing.Point(16, 156);
this.oProgress2.Name = "oProgress2";
this.oProgress2.Size = new System.Drawing.Size(475, 14);
this.oProgress2.Step = 5;
this.oProgress2.TabIndex = 19;
// 
// wwHttpMultiThread
// 
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(506, 226);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
  this.oProgress2,
  this.oProgress,
  this.lblResult2,
  this.lblResult,
  this.txtUrl2,
  this.label2,
  this.label1,
  this.cmdGo,
  this.txtUrl});
this.Name = "wwHttpMultiThread";
this.Text = "Multi Threaded wwHttp Requests";
this.ResumeLayout(false); }
#endregion

Answer 4

接上面
private void cmdGo_Click(object sender, System.EventArgs e)
{
GetUrls oGetUrls = new GetUrls();
oGetUrls.Url = this.txtUrl.Text;
oGetUrls.ParentForm = this;

ThreadStart oDelegate = new ThreadStart(oGetUrls.FireUrls);
Thread myThread = new Thread(oDelegate);
myThread.Start(); GetUrls oGetUrls2 = new GetUrls();
oGetUrls2.ParentForm = this;
oGetUrls2.Url = this.txtUrl2.Text;
oGetUrls2.Instance = 2;

ThreadStart oDelegate2 = new ThreadStart(oGetUrls2.FireUrls);
Thread myThread2 = new Thread(oDelegate2);
myThread2.Start();
}
} public class GetUrls 
{
public string Url = "";
public wwHttpMultiThread ParentForm = null;
public int Instance = 1; public void FireUrls() 
{
wwHttp oHttp = new wwHttp();
oHttp.OnReceiveData += new wwHttp.OnReceiveDataHandler(this.OnReceiveData);
oHttp.Timeout=5;
string lcHTML = oHttp.GetUrlEvents(this.Url,4096);
if (oHttp.Error)
this.ParentForm.lblResult.Text = oHttp.ErrorMsg;
} public void OnReceiveData(object sender, wwHttp.OnReceiveDataEventArgs e) 
{
if (this.Instance == 1) 
{
this.ParentForm.lblResult.Text = e.CurrentByteCount.ToString() + " of " + 
e.TotalBytes.ToString() + " bytes";
if (e.TotalBytes > 0) 
{
this.ParentForm.oProgress.Value = Convert.ToInt32((double) e.CurrentByteCount/(double) e.TotalBytes * 100 );
} }
else 
{
this.ParentForm.lblResult2.Text = e.CurrentByteCount.ToString() + " of " + 
e.TotalBytes.ToString() + " bytes";
if (e.TotalBytes > 0) 
{
this.ParentForm.oProgress2.Value = Convert.ToInt32((double) e.CurrentByteCount/(double) e.TotalBytes * 100 );
}
}
}
}}

Answer 5

上面的老兄，你写那么长的代码我怎么看不懂啊。
using Westwind.Tools.Http;这个是什么东东啊!