[求助]请问如何在自定义的工具栏中使用engine提供的内建命令(c#)

<P>代码如下  </P>
<P>private void Form1_Load(object sender, System.EventArgs e)<BR>  {<BR>   ToolbarControlClass axToolbarControl1 = new ToolbarControlClass();<BR>   IToolbarControl toolBar1;<BR>   toolBar1 = axToolbarControl1;<BR>   toolBar1.SetBuddyControl(axMapControl1);<BR>  <BR>  } <BR>  private void toolBar1_ButtonClick(object sender, System.Windows.Forms.ToolBarButtonClickEventArgs e)<BR>  {<BR>   <BR>   if (e.Button == toolBarButton1)<BR>   {<BR>    ICommand command = new ControlsMapPanToolClass();<BR>    command.OnCreate(axMapControl1.Object);<BR>    axMapControl1.CurrentTool = command as ITool;<BR>      }</P>
<P>   if (e.Button == toolBarButton2)<BR>   { <BR>    ICommand command = new ControlsMapFullExtentCommandClass();<BR>    command.OnCreate(axMapControl1.Object);<BR>    axMapControl1.CurrentTool = command as ITool;<BR>     }<BR>现在只有button1可用，button2不行，不知是何原因，请指教，谢谢</P>

俺是用VB滴！~

<P>当然不行啊！</P>
<P>要注意Tool和Command的区别</P>
<P>通俗的说：</P>
<P>Command是在工具栏一点击，就出效果。如FullExtent，Refresh；</P>
<P>而Tool在工具栏点击后并无直接反映，而是等到你在地图上点击或移动后，产生效果，如Zoomin，Zoomout，Pan，Identify等等</P>
<P>具体哪些是Tool，哪些是Command，可以参照相关OMD。</P>
<P>Tool使用类似你的Button1；</P>
<P>而Command应该： </P>
<P>if (e.Button == toolBarButton2)<br>   { <br>    ICommand command = new ControlsMapFullExtentCommandClass();<br>    command.OnCreate(axMapControl1.Object);<br>    command.OnClick();<br>     }</P><br>

<P>两者的区别也是最近刚搞明白</P>

<P>谢谢<STRONG><FONT face=Verdana color=#da2549>kisssy，我是没搞清楚tool和command的区别，另外我想问问commandpool和hookhelp,我看了help,有些例子是vb的，我不懂vb</FONT></STRONG></P>
<P><STRONG><FONT face=Verdana color=#da2549>谢谢！！</FONT></STRONG></P><img src="images/post/smile/dvbbs/em12.gif" />

<P>commandpool:说白了就是Command Collection</P>
<P>hookhelper:一般在你自己写一个Command类模块的时候用，用法可以看例子，概括的讲：</P>
<P>1、Class_Initialize中：<FONT color=#0000ff>Set</FONT> m_pHookHelper = <CODE><FONT color=#0000ff>New</FONT></CODE> HookHelper<BR>2、ICommand_OnCreate(<CODE><FONT color=#0000ff>ByVal</FONT></CODE> hook <CODE><FONT color=#0000ff>As Object</FONT></CODE>)中：<FONT color=#0000ff>Set</FONT> m_pHookHelper.hook = hook<BR>3、ICommand_OnClick()中就可以通过m_pHookHelper得到：<a href="ms-its:E:\ArcGIS\DeveloperKit\Help\COM\VB\esriControls.chm::/ctrl_IHookHelper_ActiveView.htm" target="_blank" ><STRONG>ActiveView</STRONG></A>、<a href="ms-its:E:\ArcGIS\DeveloperKit\Help\COM\VB\esriControls.chm::/ctrl_IHookHelper_FocusMap.htm" target="_blank" ><STRONG>FocusMap</STRONG></A>、<a href="ms-its:E:\ArcGIS\DeveloperKit\Help\COM\VB\esriControls.chm::/ctrl_IHookHelper_PageLayout.htm" target="_blank" ><STRONG>PageLayout</STRONG></A>（如在OnCreate中传入PageLayoutControl）。<BR><BR></P>

谢谢<STRONG><FONT face=Verdana color=#da2549>kisssy</FONT></STRONG><img src="images/post/smile/dvbbs/em02.gif" />