Winform应用程序下调用App.config

http://hi.baidu.com/fxb%5Fhyb/blog/item/ec0248fa2a2f9c16a8d31180.html

 

新建一个winform应用程序,类似webfrom下有个web.config,winform下也有个App.config;不过App.config不是自动生成的需要手动添加，鼠标右健解决方案—〉添加—〉添加新项—〉添加App.config文件。

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <appSettings>
        <add key="myUrl" value=" http://www.comeday.com" />
    </appSettings>
</configuration>

Form1.cs文件,注意红色部分：

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;

using System.Data;
using System.Configuration;

namespace WindowsApplication1
{
    /// <summary>
    /// Form1 的摘要说明。
    /// </summary>
    public class Form1 : System.Windows.Forms.Form
    {
        private System.Windows.Forms.Button button1;
        /// <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.button1 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            //
            // button1
            //
            this.button1.Location = new System.Drawing.Point(128, 104);
            this.button1.Name = "button1";
            this.button1.TabIndex = 0;
            this.button1.Text = "button1";
            this.button1.Click += new System.EventHandler(this.button1_Click);
            //
            // Form1
            //
            this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
            this.ClientSize = new System.Drawing.Size(292, 273);
            this.Controls.Add(this.button1);
            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)
        {
            string message=ConfigurationSettings.AppSettings["myUrl"];
             MessageBox.Show(message);
         }
     }
}
来自：http://www.cnblogs.com/showna/articles/564532.html