如何在Windows Form中实现URL Encoding/Decoding？2006-08-31 14:22:00
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本文链接：http://blog.pfan.cn/Csharpsky/18048.html
如果你想在Windows Forms中实现URL Encoding，HttpUtility类有一个shared (static)方法实现对字符串的URL 编码。下面就是一个例子：【注意要在工程的引用里添加引用System.Web】
<![CDATA[using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Web;
namespace WindowsApplication1
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.TextBox textBox2;
private System.Windows.Forms.TextBox textBox3;
private System.Windows.Forms.Button button2;
/// <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.textBox1 = new System.Windows.Forms.TextBox();
this.button1 = new System.Windows.Forms.Button();
this.textBox2 = new System.Windows.Forms.TextBox();
this.textBox3 = new System.Windows.Forms.TextBox();
this.button2 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(72, 40);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(528, 21);
this.textBox1.TabIndex = 0;
this.textBox1.Text = "我是中文";
//
// button1
//
this.button1.Location = new System.Drawing.Point(168, 168);
this.button1.Name = "button1";
this.button1.TabIndex = 1;
this.button1.Text = "Url编码";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// textBox2
//
this.textBox2.Location = new System.Drawing.Point(72, 72);
this.textBox2.Name = "textBox2";
this.textBox2.Size = new System.Drawing.Size(528, 21);
this.textBox2.TabIndex = 2;
this.textBox2.Text = "";
//
// textBox3
//
this.textBox3.Location = new System.Drawing.Point(72, 112);
this.textBox3.Name = "textBox3";
this.textBox3.Size = new System.Drawing.Size(528, 21);
this.textBox3.TabIndex = 3;
this.textBox3.Text = "";
//
// button2
//
this.button2.Location = new System.Drawing.Point(392, 168);
this.button2.Name = "button2";
this.button2.TabIndex = 4;
this.button2.Text = "Url解码";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(672, 273);
this.Controls.Add(this.button2);
this.Controls.Add(this.textBox3);
this.Controls.Add(this.textBox2);
this.Controls.Add(this.button1);
this.Controls.Add(this.textBox1);
this.Name = "Form1";
this.Text = "Form1";
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(object sender, System.EventArgs e)
{
textBox2.Text = System.Web.HttpUtility.UrlEncode(textBox1.Text);
}
private void button2_Click(object sender, System.EventArgs e)
{
textBox3.Text = System.Web.HttpUtility.UrlDecode(textBox2.Text);
}
}
}
]]>
注意：如果发送URL到页面，会出现不能正确解析的情况，有时候会出现汉字为奇数个时会少一个汉字，为偶数个时则正常，这种情况是使用了System.Web.HttpUtility.UrlEncode(strArg, System.Text.Encoding.UTF8)造成的，用System.Web.HttpUtility.UrlEncode(strArg, System.Text.UnicodeEncoding.GetEncoding("GB2312"))即可正确传递。
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