在windows应用程序里面如何使用cache？

Question

不是web，命名空间是哪个？
using System....????????
怎么用的？

Answer 1

using System.Web;
using System.Web.Caching;
Using Cache in Your WinForms Applications
<PRE lang=cs>using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Web.Caching;
using System.Data;namespace CacheSample
{
   public class Form1 : System.Windows.Forms.Form
   {
      private System.Windows.Forms.Label label1;
      private System.Windows.Forms.Label label2;
      private System.Windows.Forms.TextBox txtValueToPutInCache;
      private System.Windows.Forms.TextBox txtValueInCache;
      private System.Windows.Forms.Button btnPutInCache;
      private System.Windows.Forms.Button btnGetFromButton;
      
      private const string CACHE_KEY = "APPCACHEKEY";
      
      /// <summary>
      /// Required designer variable.
      /// </summary>
      private System.ComponentModel.Container components = null;
      
      public Form1()
      {
         //
         // 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.label1 = new System.Windows.Forms.Label();
         this.label2 = new System.Windows.Forms.Label();
         this.txtValueToPutInCache = new System.Windows.Forms.TextBox();
         this.txtValueInCache = new System.Windows.Forms.TextBox();
         this.btnPutInCache = new System.Windows.Forms.Button();
         this.btnGetFromButton = new System.Windows.Forms.Button();
         this.SuspendLayout();
         // 
         // label1
         // 
         this.label1.AutoSize = true;
         this.label1.Location = new System.Drawing.Point(8, 16);
         this.label1.Name = "label1";
         this.label1.Size = new System.Drawing.Size(113, 16);
         this.label1.TabIndex = 0;
         this.label1.Text = "Value to put in cache:";
         // 
         // label2
         // 
         this.label2.AutoSize = true;
         this.label2.Location = new System.Drawing.Point(8, 40);
         this.label2.Name = "label2";
         this.label2.Size = new System.Drawing.Size(95, 16);
         this.label2.TabIndex = 1;
         this.label2.Text = "Value from cache:";
         // 
         // txtValueToPutInCache
         // 
         this.txtValueToPutInCache.Location = new System.Drawing.Point(128, 16);
         this.txtValueToPutInCache.Name = "txtValueToPutInCache";
         this.txtValueToPutInCache.Size = new System.Drawing.Size(200, 20);
         this.txtValueToPutInCache.TabIndex = 2;
         this.txtValueToPutInCache.Text = "";
         // 
         // txtValueInCache
         // 
         this.txtValueInCache.Location = new System.Drawing.Point(128, 40);
         this.txtValueInCache.Name = "txtValueInCache";
         this.txtValueInCache.ReadOnly = true;
         this.txtValueInCache.Size = new System.Drawing.Size(200, 20);
         this.txtValueInCache.TabIndex = 3;
         this.txtValueInCache.Text = "";
         // 
         // btnPutInCache
         // 
         this.btnPutInCache.Location = new System.Drawing.Point(352, 16);
         this.btnPutInCache.Name = "btnPutInCache";
         this.btnPutInCache.Size = new System.Drawing.Size(104, 23);
         this.btnPutInCache.TabIndex = 4;
         this.btnPutInCache.Text = "Put in Cache";
         this.btnPutInCache.Click += 
              new System.EventHandler(this.btnPutInCache_Click);
         // 
         // btnGetFromButton
         // 
         this.btnGetFromButton.Location = new System.Drawing.Point(352, 40);
         this.btnGetFromButton.Name = "btnGetFromButton";
         this.btnGetFromButton.Size = new System.Drawing.Size(104, 23);
         this.btnGetFromButton.TabIndex = 5;
         this.btnGetFromButton.Text = "Get from Cache";
         this.btnGetFromButton.Click += 
              new System.EventHandler(this.btnGetFromButton_Click);
         // 
         // Form1
         // 
         this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
         this.ClientSize = new System.Drawing.Size(488, 133);
         this.Controls.Add(this.btnGetFromButton);
         this.Controls.Add(this.btnPutInCache);
         this.Controls.Add(this.txtValueInCache);
         this.Controls.Add(this.txtValueToPutInCache);
         this.Controls.Add(this.label2);
         this.Controls.Add(this.label1);
         this.Name = "Form1";
         this.Text = "Form1";
         this.ResumeLayout(false);
      }
      #endregion      private void btnPutInCache_Click(object sender, System.EventArgs e)
      {
         AppMain.Cache.Insert( 
            CACHE_KEY, 
            txtValueToPutInCache.Text, 
            null, 
            Cache.NoAbsoluteExpiration,
            TimeSpan.FromSeconds( 60 ) );
      }      private void btnGetFromButton_Click(object sender, System.EventArgs e)
      {
         string value;
         value = AppMain.Cache[ CACHE_KEY ] as string;
         if( null == value )
         {
            value = "[No value in the cache.]";
         }
         txtValueInCache.Text = value;
      }
    }
}</PRE>

Answer 2

http://www.codeproject.com/csharp/cacheinwinformapps.asp