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C#ʵÏÖWindows FormµÄ͸Ã÷±³¾°ÓÃÏÂÃæÕâ¶Î´úÂëÄÜʵÏַdz£ÓÐÒâË¼ÕæÕýµÄ͸Ã÷±³¾°£¬Í¸Ã÷µÄµØ·½²»½öÄÜÏÔʾÆäÏÂÒ»²ãµÄͼ°¸£¬¶øÇÒÄÜÈÃÊó±ê´©Ô½¹ýÈ¥£¬³ÉÎªÕæÕýµÄ͸Ã÷»¯¡£
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µÚÈý¸öÉèÖÃOpacityµÄ·½·¨Êǽ«Õû¸öClientWindowÉϵÄËùÓж«Î÷È«²¿Í¸Ã÷»¯£¬¶ø²»½ö½öÊDZ³¾°£¬Èç¹ûÉèÖÃΪ0£¬ÔòÊÇÍêȫ͸Ã÷£¬µ«Õû¸ö³ÌÐò¸ÃÏÔʾµÄ²¿·ÖÒ²¶¼Í¸Ã÷ÁË£¬Òâζ×ųÌÐò±äµÃÕÒ²»×ÅÁË¡£
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namespace DesktopClock
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
//SetStyle(ControlStyles.SupportsTransparentBackColor, true);
//this.BackColor=Color.Transparent;
this.BackColor = Color.White;
this.TransparencyKey = Color.White;
//this.Opacity = 0.5; ......

C# »Ø¹ö

 private void save_db(){
    SqlConnection conn = new SqlConnection(ConfigurationSettings.AppSettings[""].ToString());
    SqlCommand comm = new SqlCommand();
    conn.Open();
    SqlTransaction rollbk2= conn.BeginTransaction();
    comm.Connection=conn;
    comm.Transaction=rollbk2;
    try
    {
    for(i){
    comm.CommandText="insert into ";
    comm.ExecuteNonQuery();
    }
    rollbk2.Commit();
    }
    catch(Exception exp)
    {
    rollbk2.Rollback();
    Response.Write("save_fail");
    return;
    }
    finally
    {
    conn.Close();
    }
    Response.Write("save_ok");
  ......

c#¼òµ¥²Ù×÷×¢²á±í

Ò»¡¢Ê×ÏÈÏÈÌí¼ÓÒýÓà   using Microsoft.Win32;     
//ÒòΪ²Ù×÷×¢²á±íµÄÁ½¸öÀàRegistryKeyºÍRegistry¶¼°üº¬ÔÚ´ËÒýÓÃÖУ»
 
¶þ¡¢±àд´úÂ뿪ʼ²Ù×÷×¢²á±í
1¡¢ #region      ÏÞÖÆÈí¼þµÄʹÓôÎÊý
        private void BtnTimes_Click(object sender, EventArgs e)
        {
            try
            {
                 //ÔÚ×¢²á±íÖд´½¨×Ó¼ü
                RegistryKey rk = Registry.LocalMachine.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\Currentversion\\Run\\nums"); //CreateSubKey´ò¿ªºÍ´´½¨Á½ÖÖ¹¦ÄÜ
                int numscou ......

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Code
public void UpdateContactTableByDataSet(DataSet ds,string strTblName) 

    try 
    { 
        string strConnection ="server = ;database = ;uid = ;pwd = ;Connec Timeout = 60 ";
        SqlDataAdapter myAdapter = new SqlDataAdapter(); 
        SqlConnection  conn = new SqlConnection(strConnection); 
        SqlCommand myCommand = new SqlCommand("select * from strTblName",conn); 
    &nb ......

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