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using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.IO;
using Microsoft.Win32;
namespace mv
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            DialogResult result = MessageBox.Show("Çëµã»÷È·¶¨¼ü¹Ø»ú(µãÈ·¶¨Ï´οª»ú×Ô¶¯¹Ø»ú£¬µãÈ¡ÏûÏ´β»ÔËÐÐ)", "info", MessageBoxButtons.YesNo, MessageBoxIcon.Information, MessageBoxDefaultButton.Button1);
            if (result == DialogResult.Yes)
            {
                string path = System.Windows.Forms.Application.ExecutablePath;
                int ab=path.Length;
                int a = path.LastIndexOf(@"\");
                int b = path.LastIndexOf(".");
                string mess = path.Substring(a+1, b - a - 1);
                MessageBox.Show(mess);
      &nb


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C#ÖÐʹÓÃDataTableÏÔʾAccessÊý¾Ý¿âÖÐÎļþÁбí


private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
             this.comboBox2.Items.Clear();
            switch(this.comboBox1.SelectedIndex)
       ......

C# Active¿Ø¼þ£¬²¢´¥·¢javascriptʼþ

´´½¨Ò»¸öWinformÓû§¿Ø¼þ UserControl1
 using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Reflection;
namespace MyActiveT ......

C# ¸ñʽ»¯Êä³öXML

ºÜ¶àʱºòÓÐÒ»¸öxml×Ö·û´®£¬Ã»Óл»ÐУ¬Ã»ÓÐËõ½ø£¬ÒªÉú³ÉxmlÎļþ²»Ò×ÔĶÁ¡£ÏÂÃæµÄ´úÂë¾ÍÊÇÔõô½«Ò»¸öÁ¬ÐøµÄxml×Ö·û´®¸ñʽ»¯Êä³ö
// a demo string
string xml = "<Root><Eles><Ele>abc</Ele><Ele>123</Ele></Eles></Root>";
System.Xml.XmlDocument doc = new System.Xml ......

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public sealed class DbOper
{
     ///<summary>
     /// DbOperÀàµÄ¹¹Ô캯Êý
     ///</summary>
     private DbOper()
     {
     }
     ......

c#²Ù×÷Excel һЩÎÊÌâ ×Ö·û±äΪnull½â¾ö·½·¨


C#¶ÁÈ¡ExcelÓöµ½ÎÞ·¨¶ÁÈ¡µÄ½â¾ö·½·¨£º
1.ÔÚµ¼ÈëÊý¾ÝÁ¬½Ó×Ö·û´®ÖУ¬½«IMEX=1¼ÓÈ룬“Provider=Microsoft.Jet.OLEDB.4.0;Data Source="C:\Data.xls";Extended Properties="Excel 8.0;HDR=Yes;IMEX=1; ”£¬ÕâÑù¾Í¿ÉÒÔ¡£
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IMEX=1£º»ìºÏģʽ
HDR=Yes; ÊÇ·ñÈõÚÒ»ÐÐ×÷ΪÁÐÍ·
Á½Õß±ØÐëÒ»Æ ......
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