100165752.htm
来自「C#高级编程(第三版),顶死你们。。 。up」· HTM 代码 · 共 163 行
HTM
163 行
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>
29.2.3 创建组件
</title></head>
<body>
<div class="area">
<div class="col1">
<div class="lineBlue">
</div>
<!-- title -->
<div class="arcTitle">
<h1>
<a href="../16">
C#高级编程（第3版）【全文连载】
</a>
</h1>
<div style="text-align: center; font-size: 15px">
<a href="100165752.htm">
29.2.3 创建组件
</a>
</div>
<div style="text-align: center; font-size: 15px">
<a class="url" href="../../default.htm">http://book.csdn.net/</a>
2006-10-13 14:41:00
</div>
<div style="margin: 0px auto; width: 700px; border: solid 1px #0b5f98;">
<div style="float: left; width: 16px; background-color: #0b5f98; color: White; padding: 1px;">
图书导读
</div>
<div style="float: right; width: 670px; text-align: left; line-height: 16pt; padding-left: 2px">
<!--导读-->
<h1 id="divCurrentNode" style="color: #b83507; width: 100%; text-align: left; font-size: 12px; padding-left: 2px">当前章节:<a href='100165752.htm'><font color='red'>29.2.3 创建组件</font></a></h1>
<div id="divRelateNode" style="padding-left: 2px">
<div style='float:left;width:49%'>·<a href='100165749.htm'>29.2 创建简单的COM+应用程序</a></div><div style='float:right;width:49%'>·<a href='100165750.htm'>29.2.1 类ServicedComponent</a></div><div style='float:left;width:49%'>·<a href='100165751.htm'>29.2.2 应用程序属性</a></div><div style='float:right;width:49%'>·<a href='100165753.htm'>29.3 部署</a></div><div style='float:left;width:49%'>·<a href='100165754.htm'>29.3.1 自动部署</a></div><div style='float:right;width:49%'>·<a href='100165755.htm'>29.3.2 手工部署</a></div></div>
</div>
</div>
</div>
<!-- main -->
<div id="main">
<div id="text"> <link href="css.css" rel="stylesheet" type="text/css" /><h3 style='margin-top:8.15pt;margin-right:0cm;FTEL:8.15pt;margin-left:
0cm'><span lang=EN-US>29.2.3 </span><span style='font-family:黑体'>创建组件</span></h3>
<p class=MsoNormal><span style='font-family:宋体'>在文件</span><span lang=EN-US>class1.cs</span><span
style='font-family:宋体'>中，可以创建服务组件类。有了服务组件，最好定义一个接口作为客户程序和组件之间的契约。这不是一个苛刻的要求，但一些</span><span
lang=EN-US>Enterprise Services</span><span style='font-family:宋体'>特性</span><span
lang=EN-US>(</span><span style='font-family:宋体'>例如在方法或接口级别上设置基于角色的安全性</span><span
lang=EN-US>)</span><span style='font-family:宋体'>需要接口。用方法</span><span
lang=EN-US>Welcome()</span><span style='font-family:宋体'>创建接口</span><span
lang=EN-US>IGreeting</span><span style='font-family:宋体'>：</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US>using
System;</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US>using
System.EnterpriseServices;</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US> </span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US>namespace
Wrox.ProCSharp.EnterpriseServices</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US>{</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US>
public interface IGreeting</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US>
{</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US>
string Welcome(string name);</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US>
}</span></p>
<p class=MsoNormal><span style='font-family:宋体'>类</span><span lang=EN-US>SimpleComponent</span><span
style='font-family:宋体'>派生于基类</span><span lang=EN-US>SercivedComponent</span><span
style='font-family:宋体'>，实现接口</span><span lang=EN-US>IGreeting</span><span
style='font-family:宋体'>。类</span><span lang=EN-US>SercivedComponent</span><span
style='font-family:宋体'>作为所有服务组件类的基类，为激活和构造过程提供了一些方法。把属性</span><span lang=EN-US>[EventTrackingEnabled]</span><span
style='font-family:宋体'>应用于这个类，使之能用管理工具监视对象。在默认情况下是禁止监视对象的，因为使用这个功能会降低性能。属性</span><span
lang=EN-US>[Description]</span><span style='font-family:宋体'>仅指定显示在管理工具上的文本：</span></p>
<p class=2 style='margin-top:8.15pt;margin-right:0cm;FTEL:0cm;
margin-left:21.45pt;FTEL:.0001pt;FTEL:18.45pt'><span
lang=EN-US>[EventTrackingEnabled(true)]</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US>[Description("Simple
Serviced Component Sample")]</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US>public
class SimpleComponent : SercivedComponent. IGreeting</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US>{</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US>
public SimpleComponent()</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US>
{</span></p>
<p class=2 style='margin-top:0cm;margin-right:0cm;FTEL:8.15pt;
margin-left:21.45pt;FTEL:27.65pt'><span lang=EN-US>}</span></p>
<p class=MsoNormal><span style='font-family:宋体'>方法</span><span lang=EN-US>Welcome()</span><span
style='font-family:宋体'>仅返回“</span><span lang=EN-US>Hello, </span><span
style='font-family:宋体'>”和传送给参数的名称。要查看在管理工具中运行的组件，</span><span lang=EN-US>Thread.Sleep()</span><span
style='font-family:宋体'>模拟了一些处理时间：</span></p>
<p class=2 style='margin-top:8.15pt;margin-right:0cm;FTEL:0cm;
margin-left:21.45pt;FTEL:.0001pt;FTEL:46.2pt'><span lang=EN-US>public
string Welcome(string name)</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:46.2pt'><span lang=EN-US>{</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:46.2pt'><span lang=EN-US>
//simulate some processing time</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:46.35pt'><span lang=EN-US>
System.Threading.Thread.Sleep(1000);</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:46.2pt'><span lang=EN-US>
return "Hello, " + name;</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:46.2pt'><span lang=EN-US>}</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:36.85pt'><span lang=EN-US>}</span></p>
<p class=2 style='margin-top:0cm;margin-right:0cm;FTEL:8.15pt;
margin-left:21.45pt;FTEL:27.65pt'><span lang=EN-US>}</span></p>
<p class=MsoNormal><span style='font-family:宋体'>除了应用一些属性，使类派生于</span><span
lang=EN-US>SercivedComponent</span><span style='font-family:宋体'>之外，不需要对使用</span><span
lang=EN-US>Enterprise Services</span><span style='font-family:宋体'>特性的类做什么特别的工作。剩下的就是创建和部署客户应用程序了。</span></p>
</div>
<!-- page -->
<div class="page" style="text-align: center">
<a href="100165751.htm">上一页</a> <a href="index.html">首页</a> <a href="100165753.htm">下一页</a>
</div>
<div style="margin: 0px auto; width: 700px; border: solid 1px #0b5f98;">
<div style="float: left; width: 16px; background-color: #0b5f98; color: White; padding: 1px;">
图书导读
</div>
<div style="float: right; width: 670px; text-align: left; line-height: 16pt; padding-left: 2px">
<!--导读-->
<h1 id="divCurrentNode2" style="color: #b83507; width: 100%; text-align: left; font-size: 12px; padding-left: 2px">当前章节:<a href='100165752.htm'><font color='red'>29.2.3 创建组件</font></a></h1>
<div id="divRealteNod2" style="padding-left: 2px">
<div style='float:left;width:49%'>·<a href='100165749.htm'>29.2 创建简单的COM+应用程序</a></div><div style='float:right;width:49%'>·<a href='100165750.htm'>29.2.1 类ServicedComponent</a></div><div style='float:left;width:49%'>·<a href='100165751.htm'>29.2.2 应用程序属性</a></div><div style='float:right;width:49%'>·<a href='100165753.htm'>29.3 部署</a></div><div style='float:left;width:49%'>·<a href='100165754.htm'>29.3.1 自动部署</a></div><div style='float:right;width:49%'>·<a href='100165755.htm'>29.3.2 手工部署</a></div></div>
</div>
</div>
</div>
</div>
</body>
</html>
⌨️ 快捷键说明
复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?