实例介绍
【实例简介】
【实例截图】
【核心代码】
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Net;
namespace Network
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.GroupBox groupBox1;
private System.Windows.Forms.TextBox textBox2;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.GroupBox groupBox2;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.Button button4;
private System.Windows.Forms.TextBox textBox3;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.TextBox textBox4;
private System.Windows.Forms.Label label4;
private System.Windows.Forms.OpenFileDialog openFileDialog1;
private System.Windows.Forms.SaveFileDialog saveFileDialog1;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/// <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 );
}
#region Windows 窗体设计器生成的代码
/// <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()
{
this.groupBox1 = new System.Windows.Forms.GroupBox();
this.textBox2 = new System.Windows.Forms.TextBox();
this.label2 = new System.Windows.Forms.Label();
this.textBox1 = new System.Windows.Forms.TextBox();
this.label1 = new System.Windows.Forms.Label();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.groupBox2 = new System.Windows.Forms.GroupBox();
this.button3 = new System.Windows.Forms.Button();
this.button4 = new System.Windows.Forms.Button();
this.textBox3 = new System.Windows.Forms.TextBox();
this.label3 = new System.Windows.Forms.Label();
this.textBox4 = new System.Windows.Forms.TextBox();
this.label4 = new System.Windows.Forms.Label();
this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();
this.groupBox1.SuspendLayout();
this.groupBox2.SuspendLayout();
this.SuspendLayout();
//
// groupBox1
//
this.groupBox1.Controls.Add(this.button2);
this.groupBox1.Controls.Add(this.button1);
this.groupBox1.Controls.Add(this.textBox2);
this.groupBox1.Controls.Add(this.label2);
this.groupBox1.Controls.Add(this.textBox1);
this.groupBox1.Controls.Add(this.label1);
this.groupBox1.Location = new System.Drawing.Point(8, 8);
this.groupBox1.Name = "groupBox1";
this.groupBox1.Size = new System.Drawing.Size(328, 120);
this.groupBox1.TabIndex = 0;
this.groupBox1.TabStop = false;
this.groupBox1.Text = "下载文件";
//
// textBox2
//
this.textBox2.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
this.textBox2.Location = new System.Drawing.Point(16, 88);
this.textBox2.Name = "textBox2";
this.textBox2.Size = new System.Drawing.Size(296, 21);
this.textBox2.TabIndex = 7;
this.textBox2.Text = "";
//
// label2
//
this.label2.Location = new System.Drawing.Point(16, 64);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(72, 16);
this.label2.TabIndex = 6;
this.label2.Text = "下载网址：";
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(16, 40);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(296, 21);
this.textBox1.TabIndex = 5;
this.textBox1.Text = "";
//
// label1
//
this.label1.Location = new System.Drawing.Point(16, 24);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(80, 16);
this.label1.TabIndex = 4;
this.label1.Text = "保存文件名：";
//
// button1
//
this.button1.Location = new System.Drawing.Point(232, 16);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(80, 23);
this.button1.TabIndex = 8;
this.button1.Text = "浏览";
this.button1.Click = new System.EventHandler(this.button1_Click_1);
//
// button2
//
this.button2.Location = new System.Drawing.Point(232, 64);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(80, 23);
this.button2.TabIndex = 9;
this.button2.Text = "下载";
this.button2.Click = new System.EventHandler(this.button2_Click);
//
// groupBox2
//
this.groupBox2.Controls.Add(this.button3);
this.groupBox2.Controls.Add(this.button4);
this.groupBox2.Controls.Add(this.textBox3);
this.groupBox2.Controls.Add(this.label3);
this.groupBox2.Controls.Add(this.textBox4);
this.groupBox2.Controls.Add(this.label4);
this.groupBox2.Location = new System.Drawing.Point(8, 136);
this.groupBox2.Name = "groupBox2";
this.groupBox2.Size = new System.Drawing.Size(328, 120);
this.groupBox2.TabIndex = 1;
this.groupBox2.TabStop = false;
this.groupBox2.Text = "上载文件";
//
// button3
//
this.button3.Location = new System.Drawing.Point(232, 64);
this.button3.Name = "button3";
this.button3.Size = new System.Drawing.Size(80, 23);
this.button3.TabIndex = 9;
this.button3.Text = "上载";
this.button3.Click = new System.EventHandler(this.button3_Click);
//
// button4
//
this.button4.Location = new System.Drawing.Point(232, 16);
this.button4.Name = "button4";
this.button4.Size = new System.Drawing.Size(80, 23);
this.button4.TabIndex = 8;
this.button4.Text = "浏览";
this.button4.Click = new System.EventHandler(this.button4_Click);
//
// textBox3
//
this.textBox3.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
this.textBox3.Location = new System.Drawing.Point(16, 40);
this.textBox3.Name = "textBox3";
this.textBox3.Size = new System.Drawing.Size(296, 21);
this.textBox3.TabIndex = 7;
this.textBox3.Text = "";
//
// label3
//
this.label3.Location = new System.Drawing.Point(16, 64);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(72, 16);
this.label3.TabIndex = 6;
this.label3.Text = "上载网址：";
//
// textBox4
//
this.textBox4.Location = new System.Drawing.Point(16, 88);
this.textBox4.Name = "textBox4";
this.textBox4.Size = new System.Drawing.Size(296, 21);
this.textBox4.TabIndex = 5;
this.textBox4.Text = "";
//
// label4
//
this.label4.Location = new System.Drawing.Point(16, 24);
this.label4.Name = "label4";
this.label4.Size = new System.Drawing.Size(80, 16);
this.label4.TabIndex = 4;
this.label4.Text = "上载文件名：";
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(344, 262);
this.Controls.Add(this.groupBox2);
this.Controls.Add(this.groupBox1);
this.MaximizeBox = false;
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "演示上下载文件";
this.groupBox1.ResumeLayout(false);
this.groupBox2.ResumeLayout(false);
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void button1_Click_1(object sender, System.EventArgs e)
{//浏览保存文件
if(this.saveFileDialog1.ShowDialog()==DialogResult.OK)
{
this.textBox1.Text=this.saveFileDialog1.FileName;
}
}
private void button4_Click(object sender, System.EventArgs e)
{//浏览上载文件
if(this.openFileDialog1.ShowDialog()==DialogResult.OK)
{
this.textBox3.Text=this.openFileDialog1.FileName;
}
}
private void button2_Click(object sender, System.EventArgs e)
{//下载文件
if(this.textBox1.Text==""|this.textBox2.Text=="")
return;
WebClient MyClient=new WebClient();
string URL=this.textBox2.Text;
string SaveFileName=this.textBox1.Text;
try
{
MyClient.DownloadFile(URL , SaveFileName);
MessageBox.Show("文件下载成功！","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
}
catch(Exception Err)
{
MessageBox.Show("文件下载失败！错误是：" Err.Message,"信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
}
}
private void button3_Click(object sender, System.EventArgs e)
{//上载文件
if(this.textBox3.Text==""|this.textBox4.Text=="")
return;
WebClient MyClient=new WebClient();
string URL=this.textBox3.Text;
string FileName=this.textBox4.Text;
byte[] MyResponseArray=null;
try
{
MyResponseArray = MyClient.UploadFile(URL,FileName);
MessageBox.Show("文件上载成功！","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
}
catch(Exception Err)
{
MessageBox.Show("文件上载失败！错误是：" Err.Message,"信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
}
finally
{
MessageBox.Show("\n服务器的回复为: \n" System.Text.Encoding.ASCII.GetString(MyResponseArray));
}
}
}
}
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