.net中activex的替代技术:winform control（一）

   我想做用vc做一activex控件对初始编程的人来说可能不是一件容易的事吧，在.net出现之后，有更简单的技术来替代它，那就是winform control，它可以把做好的winform control直接嵌入到IE中，对于访问本地磁盘和注册表的winform control，可能要重新设置安全策略。我们就拿多文件上传为例，进行讲述。

（一）   做一winform control
上面的代码中,公布了Uri和ServerFolder属性:Uri指定上传的url地址,ServerFolder指定存放的上传文件的文件夹；这俩个属性都是可读可写的，可以在网页中通过javascript和用户交互。到此为止，上传的winform控件就完成了，非常简单。（未完待续）

using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Net;
using System.IO;
namespace MultiFileUpload
{
    /**//// <summary>
    /// UserControl1 的摘要说明。
    /// </summary>
    public class Demo : System.Windows.Forms.UserControl
    {
        private System.Windows.Forms.Panel panel1;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Splitter splitter1;
        private System.Windows.Forms.Panel panel2;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Splitter splitter2;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.OpenFileDialog openFileDialog1;
        public WebClient wc=new WebClient();
        private string filestr="";
        private string[] FileListArr;
        private System.Windows.Forms.Splitter splitter3;
        private System.Windows.Forms.ProgressBar progressBar1;
        private System.Windows.Forms.Splitter splitter4;
        private System.Windows.Forms.Panel panel3;
        private System.Windows.Forms.ListBox listBox1;
        private string uri="http://10.126.65.96/WebApplication2";//根据自己的情况设置
        private string serverfolder="usercontrols";//根据自己的情况设置
        /**//// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.Container components = null;

        public Demo()
        {
            // 该调用是 Windows.Forms 窗体设计器所必需的。
            InitializeComponent();

            // TODO: 在 InitComponent 调用后添加任何初始化

        }

        /**//// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if( components != null )
                    components.Dispose();
            }
            base.Dispose( disposing );
        }
        
        public string Uri
        {
            set
            {
            this.uri=value;
            }
            get
            {
            return this.uri;
            }
        }
        public string ServerFolder
        {
            set
            {
            this.serverfolder=value;
            }
            get
            {
            return this.serverfolder;
            }
        }
        组件设计器生成的代码#region 组件设计器生成的代码
        /**//// <summary>
        /// 设计器支持所需的方法 - 不要使用代码编辑器 
        /// 修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Demo));
            this.panel1 = new System.Windows.Forms.Panel();
            this.splitter3 = new System.Windows.Forms.Splitter();
            this.panel2 = new System.Windows.Forms.Panel();
            this.button2 = new System.Windows.Forms.Button();
            this.splitter2 = new System.Windows.Forms.Splitter();
            this.button1 = new System.Windows.Forms.Button();
            this.splitter1 = new System.Windows.Forms.Splitter();
            this.label1 = new System.Windows.Forms.Label();
            this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
            this.progressBar1 = new System.Windows.Forms.ProgressBar();
            this.splitter4 = new System.Windows.Forms.Splitter();
            this.panel3 = new System.Windows.Forms.Panel();
            this.listBox1 = new System.Windows.Forms.ListBox();
            this.panel1.SuspendLayout();
            this.panel2.SuspendLayout();
            this.panel3.SuspendLayout();
            this.SuspendLayout();
            // 
            // panel1
            // 
            this.panel1.BackgroundImage = ((System.Drawing.Image)(resources.GetObject("panel1.BackgroundImage")));
            this.panel1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.panel1.Controls.Add(this.panel3);
            this.panel1.Controls.Add(this.splitter4);
            this.panel1.Controls.Add(this.progressBar1);
            this.panel1.Controls.Add(this.splitter3);
            this.panel1.Controls.Add(this.panel2);
            this.panel1.Controls.Add(this.splitter1);
            this.panel1.Controls.Add(this.label1);
            this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.panel1.Location = new System.Drawing.Point(0, 0);
            this.panel1.Name = "panel1";
            this.panel1.Size = new System.Drawing.Size(568, 376);
            this.panel1.TabIndex = 0;
            // 
            // splitter3
            // 
            this.splitter3.Dock = System.Windows.Forms.DockStyle.Top;
            this.splitter3.Location = new System.Drawing.Point(72, 43);
            this.splitter3.Name = "splitter3";
            this.splitter3.Size = new System.Drawing.Size(494, 3);
            this.splitter3.TabIndex = 4;
            this.splitter3.TabStop = false;
            // 
            // panel2
            // 
            this.panel2.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.panel2.Controls.Add(this.button2);
            this.panel2.Controls.Add(this.splitter2);
            this.panel2.Controls.Add(this.button1);
            this.panel2.Dock = System.Windows.Forms.DockStyle.Left;
            this.panel2.Location = new System.Drawing.Point(0, 43);
            this.panel2.Name = "panel2";
            this.panel2.Size = new System.Drawing.Size(72, 331);
            this.panel2.TabIndex = 2;
            // 
            // button2
            // 
            this.button2.Dock = System.Windows.Forms.DockStyle.Fill;
            this.button2.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
            this.button2.Location = new System.Drawing.Point(0, 155);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(70, 174);
            this.button2.TabIndex = 2;
            this.button2.Text = "上传文件";
            this.button2.Click += new System.EventHandler(this.button2_Click);
            // 
            // splitter2
            // 
            this.splitter2.Dock = System.Windows.Forms.DockStyle.Top;
            this.splitter2.Location = new System.Drawing.Point(0, 152);
            this.splitter2.Name = "splitter2";
            this.splitter2.Size = new System.Drawing.Size(70, 3);
            this.splitter2.TabIndex = 1;
            this.splitter2.TabStop = false;
            // 
            // button1
            // 
            this.button1.Dock = System.Windows.Forms.DockStyle.Top;
            this.button1.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
            this.button1.Location = new System.Drawing.Point(0, 0);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(70, 152);
            this.button1.TabIndex = 0;
            this.button1.Text = "选择文件";
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // splitter1
            // 
            this.splitter1.Dock = System.Windows.Forms.DockStyle.Top;
            this.splitter1.Location = new System.Drawing.Point(0, 40);
            this.splitter1.Name = "splitter1";
            this.splitter1.Size = new System.Drawing.Size(566, 3);
            this.splitter1.TabIndex = 1;
            this.splitter1.TabStop = false;
            // 
            // label1
            // 
            this.label1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.label1.Dock = System.Windows.Forms.DockStyle.Top;
            this.label1.Location = new System.Drawing.Point(0, 0);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(566, 40);
            this.label1.TabIndex = 0;
            this.label1.Text = "多文件上传";
            this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
            // 
            // progressBar1
            // 
            this.progressBar1.Dock = System.Windows.Forms.DockStyle.Bottom;
            this.progressBar1.Location = new System.Drawing.Point(72, 351);
            this.progressBar1.Name = "progressBar1";
            this.progressBar1.Size = new System.Drawing.Size(494, 23);
            this.progressBar1.TabIndex = 5;
            // 
            // splitter4
            // 
            this.splitter4.Dock = System.Windows.Forms.DockStyle.Bottom;
            this.splitter4.Location = new System.Drawing.Point(72, 349);
            this.splitter4.Name = "splitter4";
            this.splitter4.Size = new System.Drawing.Size(494, 2);
            this.splitter4.TabIndex = 6;
            this.splitter4.TabStop = false;
            // 
            // panel3
            // 
            this.panel3.Controls.Add(this.listBox1);
            this.panel3.Dock = System.Windows.Forms.DockStyle.Fill;
            this.panel3.Location = new System.Drawing.Point(72, 46);
            this.panel3.Name = "panel3";
            this.panel3.Size = new System.Drawing.Size(494, 303);
            this.panel3.TabIndex = 7;
            // 
            // listBox1
            // 
            this.listBox1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.listBox1.ItemHeight = 12;
            this.listBox1.Location = new System.Drawing.Point(0, 0);
            this.listBox1.Name = "listBox1";
            this.listBox1.Size = new System.Drawing.Size(494, 292);
            this.listBox1.TabIndex = 0;
            // 
            // Demo
            // 
            this.Controls.Add(this.panel1);
            this.Name = "Demo";
            this.Size = new System.Drawing.Size(568, 376);
            this.panel1.ResumeLayout(false);
            this.panel2.ResumeLayout(false);
            this.panel3.ResumeLayout(false);
            this.ResumeLayout(false);

        }
        #endregion
        public string GetUri()
        {
        return this.uri;
        }
        public void SendFiles()
        {
            
            char[] ch=new char[1];
            ch[0]='/';
            string[] arrstr=this.filestr.Split(ch);
            
            WebClient myWebClient = new WebClient(); 
            做一存取凭据#region 做一存取凭据
            //NetworkCredential myCred = new NetworkCredential("Administrator","11");//
             //CredentialCache myCache = new CredentialCache();
           //myCache.Add(new Uri(this.uri), "Basic", myCred);
            //myWebClient.Credentials =myCache; 
            #endregion
            //使用默认的权限              
            myWebClient.Credentials =CredentialCache.DefaultCredentials; 
            int count=this.listBox1.Items.Count;
            this.progressBar1.Maximum=10*count;
            for(int i=0;i<arrstr.Length;i++)
            {
                try 
                { 
                
                    string fileNamePath=arrstr[i];
                    string fileName = fileNamePath.Substring(fileNamePath.LastIndexOf("\\") + 1); 
                    string uriString = this.uri+"/"+this.serverfolder+"/" + fileName;//指定上传得路径 
                    // 要上传的文件 
                    FileStream fs = new FileStream(fileNamePath, FileMode.Open, FileAccess.Read); 
                    //FileStream fs = OpenFile(); 
                    BinaryReader r = new BinaryReader(fs); 
            
                    //使用UploadFile方法可以用下面的格式 
                    //                    myWebClient.UploadFile(uriString,"PUT",fileNamePath); 
                    //                    MessageBox.Show(uriString);
                    byte[] postArray = r.ReadBytes((int)fs.Length); 
                    Stream postStream = myWebClient.OpenWrite(uriString,"PUT"); 
                    if(postStream.CanWrite) 
                    { 
                        postStream.Write(postArray,0,postArray.Length); 
                        this.progressBar1.Value=(i+1)*10;
                    } 
                    else 
                    { 
                        
                        MessageBox.Show( "文件目前不可写！"); 
                    } 
                    postStream.Close(); 
                 
                
                } 
                catch(WebException errMsg) 
                { 
                    
                    MessageBox.Show("上传失败：" + errMsg.Message); 
                    break;
                } 
            }
            if(this.progressBar1.Value==this.progressBar1.Maximum)
            {
                MessageBox.Show("成功");
            }
            else
            {
            MessageBox.Show("传送中出现错误！");
            }
        }
        private void button1_Click(object sender, System.EventArgs e)
        {
            OpenFileDialog    openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
            openFileDialog1.Multiselect = true;
            openFileDialog1.RestoreDirectory = true;
            openFileDialog1.Filter="dwg文件|*.dwg";
            openFileDialog1.ShowDialog();
            this.FileListArr=openFileDialog1.FileNames;
            this.listBox1.Items.Clear();
            for(int i=0;i<this.FileListArr.Length;i++)
            {
                this.listBox1.Items.Add(this.FileListArr[i]);
            }
            this.filestr="";
            for(int i=0;i<this.FileListArr.Length;i++)
            {
                if(this.filestr=="")
                {
                    this.filestr=this.FileListArr[i];

                }
                else
                {
                    this.filestr=this.filestr+"/"+this.FileListArr[i];
                }
            }
        }

        private void button2_Click(object sender, System.EventArgs e)
        {
            this.SendFiles();
        }
    }
}

 
URL:http://blog.csdn.net/xdfwsl/archive/2006/10/23/1347003.aspx