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   源码介绍

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using ConnectionDial;

namespace 断网拨号
{
    public partial class Form1 : Form
    {
        private Ras ras;

        public Form1()
        {
            InitializeComponent();
            this.ras = new Ras(new Ras.ConnectionNotify(RasConnectNotify), 1000.0);
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            string[] strs;
            string str;
            this.ras.GetEntries(out strs, out str);
            foreach (string s in strs)
            {
                comboBox1.Items.Add(s);
            }
            comboBox1.SelectedIndex = 0;
            showAttr();
        }

        private void showAttr()
        {
            int index = comboBox1.SelectedIndex;
            if (index >= 0)
            {
                string str;
                string str2;
                string str3;
                string str4;
                bool flag;
                this.ras.GetEntryParams((string)comboBox1.SelectedItem, out str, out str2, out str3, out flag, out str4);

                this.textBox1.Text = str2;
                this.textBox2.Text = str3;
            }
        }  


        private void button1_Click(object sender, EventArgs e)
        {
            string str;
            ras.DialUp((string)comboBox1.SelectedItem, out str);  
        }

        private void button2_Click(object sender, EventArgs e)
        {
            string str;
            ras.HangUp(out str);
        }

        public void RasConnectNotify(string strNotify, int Connect)
        {
            msgListBox.Items.Add(strNotify);
        }

        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            showAttr();
        }

    }
}