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ArcEngine ͼÀýC#Ô´Âë:

private void MakeLegend(IActiveView activeView,IPageLayout pageLayout)
      {
          //¶¨ÒåͼÀýUID¶ÔÏó
          UID uid = new UIDClass();
          uid.Value="esriCore.Legend";       
          //ÉèÖÃͼÀý´æ·ÅµÄ×ø±êλÖà               
          //¶¨Ò嵥λ
          pageLayout.Page.Units = esriUnits.esriCentimeters;
          //µÃµ½²ÝͼÈÝÆ÷¶ÔÏó
          IGraphicsContainer container = pageLayout as IGraphicsContainer;
          //µÃµ½µ±Ç°µØÍ¼µÄ¿ò¼Ü
          IMapFrame frameElement = container.FindFrame(activeView.FocusMap) as IMapFrame;
          IElement mapElement = frameElement as IElement;
 
          IEnvelope mapEnv = mapElement.Geometry.Envelope;   
          IEnvelope envelope = new EnvelopeClass();
          //ͨ¹ýµ±Ç°µØÍ¼¿ò¼ÜµÃµ½Ïà¶ÔλÖÃ
          envelope.PutCoords(mapEnv.XMin, mapEnv.YMin, mapEnv.XMin + 6.5, mapEnv.YMin + 0.8);
          IMapSurroundFrame frame = frameElement.CreateSurroundFrame(uid, null);            
          ILegend legend = frame.MapSurroun


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ÈçºÎ¼ÆËãMS SQLÓï¾äÖ´ÐеÄʱ¼ä»¹ÓÐc#


MSSQL:
declare @begin datetime
declare @End datetime
set @begin=getdate()
   --Ö´ÐеÄÓï¾äдÔÚÕâÀï
set @End=getdate()
select datediff(millisecond,@begin,@End) as Ö´ÐеÄʱ¼ä
--millisecond±íʾºÁÃë Èç¹û¿´Ãë¿ÉÒÔʹÓÃss
C#:
ºÜ¶àʱº ......

C#ÖÐ¶Ô XML½Úµã½øÐÐÔö¡¢É¾¡¢¸Ä¡¢²é

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Xml;
namespace WebApplication2
{
    /// <summary>
    /// XMLHelper XMLÎĵµ²Ù×÷¹ÜÀíÆ÷
  &nb ......

C#¿ª»ú×Ô¶¯Æô¶¯Ó¦ÓóÌÐò

//ÃüÃû¿Õ¼ä using Microsoft.Win32;
private void checkBox2_CheckedChanged(object sender, System.EventArgs e)
{
if (checkBox2.Checked) //ÉèÖÿª»ú×ÔÆô¶¯
{
//MessageBox.Show ("ÉèÖÿª»ú×ÔÆô¶¯ÐèÒªÐÞ¸Ä×¢²á±í","Ìáʾ");
string path = Application.ExecutablePath;
RegistryKey rk = Registry.LocalMac ......

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// Õâ¸ö½á¹¹Ì彫»á´«µÝ¸øAPI¡£Ê¹ÓÃStructLayout
[StructLayout(LayoutKind.Sequential, Pack = 1)]
internal struct TokPriv1Luid
{
public int Count;
public ......
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