vs2005里面做.net workthrough遇到的问题：（

vs2005里面做.net workthrough遇到的问题：（<BR><BR>
<DIV >在vs05里面我做.net help里面的workthrough2，可是遇到了一下问题（先装的2005,然后.net1.1，然后ae9.0，应该没有什么问题的）：<BR>里面有一步就是从继承basecommand，<FONT color=navy><B>Inherit the <I>BaseCommand</I>  abstract class，</B> In the FullExtent.cs code window, specify that the <I>FullExtent</I>  class inherits from the <I>BaseCommand</I>  abstract class as shown below. Also add the <I>sealed</I>  class modifier.<BR><B><FONT color=blue>public</FONT> <FONT color=blue>sealed</FONT> <FONT color=blue>class</FONT> FullExtent : BaseCommand</B><B>我照改了，</B>namespace Walkthrough2CS<BR>{<BR>    public sealed class FullExtent : BaseCommand<BR>    {<BR>    }<BR>}下来一步问题就出现了，2.   Display the Class View window. To open the Class View window, either press Ctrl+Shift+C or choose Class View on the View menu.<BR>3.   Navigate to the <I>BaseCommand</I>  of the <I>FullExtent</I> class, and select the <I>OnCreate</I>  method.<BR>4.   Right-click <I>OnCreate</I> , click Add, then click Override.<BR>理想的情况在vs2003里应该是图1<IMG src="http://bbs.esrichina-bj.cn/ESRI/attachments/forumid_26/zt6x6szi_YyI9wD6ji5X5.jpg" border=0>的样子，可是我在05里面就是找不到里面说的add->override，见图2<IMG src="http://bbs.esrichina-bj.cn/ESRI/attachments/forumid_26/Clipboard_sqxOwGaBkxkg.jpg" border=0>，这是怎么回事呢？？？？小弟初学，还请各位多多指教阿！！十分郁闷……</FONT></DIV>