📄 c++ builder 初学问与答 （九）.htm
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<td align="center" height=32 style="font-size: 12pt;color: #FF6600;">C++ Builder 初学问与答 （九）</td>
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<td align="center" height=25 bgcolor=#F7F7F7>作者：佚名 来源：不详 发布时间：25/09/2006 19:27:37 发布人：admin</td>
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<div id="NewaspContentLabel" style="display:block;padding:0px 10px;" class="ContentFont"><FONT id=font_word style="FONT-SIZE: 14px; FONT-FAMILY: 宋体, Verdana, Arial, Helvetica, sans-serif"><H3 style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"></H3><P class=MsoNormalIndent style="MARGIN: 0cm 0cm 0pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><B><SPAN lang=EN-US> 68</SPAN></B><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">）问：</SPAN></B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">我觉得</SPAN><SPAN lang=EN-US>C++Builder</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">的组件模板的管理方式很好，在这个模板中通过单击页就可以在各个页之间进行切换，在</SPAN><SPAN lang=EN-US>C++Builder</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">中我应该怎样来实现呢？</SPAN></FONT></P><P class=MsoNormalIndent style="MARGIN: 0cm 0cm 0pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''"> 答：</SPAN></B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">我们可以用多页组件来实现，它的好处就是可以在有限的空间中尽量多地存放信息，而且便于把信息分类。就拿组件模板来说吧，在那么小的屏幕中放置了上百个组件，而且并不显得凌乱，这都是多页组件的功劳。</SPAN></FONT></P><P class=MsoNormalIndent style="MARGIN: 0cm 0cm 0pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''"><FONT size=3>如果窗体上要放置大量的组件，而且这些组件又是分组使用的，那么可以考虑使用多页组件。这样做可以使窗体更加简洁明了。多页组件既有多页的特性，又是一个容器组件，它就像窗体一样可以包含其他的组件。</FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><SPAN lang=EN-US>C++Builder</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">提供了几种功能相似的多页组件，它们是：</SPAN><SPAN lang=EN-US>Win32</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">页中的</SPAN><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">，</SPAN><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件，</SPAN><SPAN lang=EN-US>Win31</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">页中的</SPAN><SPAN lang=EN-US>TabSet</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">和</SPAN><SPAN lang=EN-US>TabbedNoteBook</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件。从它们所在的页的不同就可以知道，<font id="nictqfsvwru">Mg的dA理+-软国提</font>前两个组件是应用在</SPAN><SPAN lang=EN-US>32</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">位系统中的组件，无论从性能还是风格上来看，这两个组件都更适合在</SPAN><SPAN lang=EN-US><a target="_blank" href="http://www.malegebide.com" class="wordstyle">Windows</a> 95</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">以上的板本中使用。后面两种组件是为喜爱</SPAN><SPAN lang=EN-US><a target="_blank" href="http://www.malegebide.com" class="wordstyle">Windows</a> 3.1</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">风格的用户保留的，其实我们完全可以只使用前两种组件。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><B><SPAN lang=EN-US><FONT size=3> <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></FONT></SPAN></B></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><B><SPAN lang=EN-US>69</SPAN></B><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">）问：</SPAN></B><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件和</SPAN><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件他们看起来简直是一模一样？</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">答：</SPAN></B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">初看起来这两种组件的确差不多，我们可以通过下面的操作可以说明这一点。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">（</SPAN><SPAN lang=EN-US>1</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">）在窗体上放置这两个组件，通过修改</SPAN><SPAN lang=EN-US>Height</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">和</SPAN><SPAN lang=EN-US>Width</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">属性把它们的尺寸设置成相同的。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">（</SPAN><SPAN lang=EN-US>2</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">）在对象编辑器中，单击</SPAN><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">的属性</SPAN><SPAN lang=EN-US>Tabs</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">中的省略号按钮，<p id="wgoarqudsf">i`教业iXy国Z+</p>这时会弹出一个字符串编辑器。在这个编辑器中分三行输入第一页，第二页和第三页。然后点击</SPAN><SPAN lang=EN-US>OK</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">按钮。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">（</SPAN><SPAN lang=EN-US>3</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">）在窗体中选取</SPAN><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件，用鼠标右键单击该组件，在弹出的快捷菜单中选择</SPAN><SPAN lang=EN-US>NewPage</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">命令，</SPAN><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件将生成一个缺省名为“</SPAN><SPAN lang=EN-US>TabSheetN</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">”的页，其中</SPAN><SPAN lang=EN-US>N</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">是从</SPAN><SPAN lang=EN-US>1</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">开始的整数。第一次运行</SPAN><SPAN lang=EN-US>New Page</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">命令生成的页名为</SPAN><SPAN lang=EN-US>TabSheet1</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">，第二次生成的名为</SPAN><SPAN lang=EN-US>TabSheet2</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">，以此类推。我们使用这个命令生成三个页。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: center; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt" align=center><SPAN lang=EN-US style="mso-font-kerning: 0pt"><FONT size=3> <o:p></o:p></FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: center; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt" align=center><SPAN lang=EN-US style="mso-font-kerning: 0pt"><?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" /><v:shapetype id=_x0000_t75 stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600"><v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path o:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype><v:shape id=_x0000_i1025 style="WIDTH: 339pt; HEIGHT: 234pt" type="#_x0000_t75"><img o:title="多页组件" src="http://www.tongyi.net:80/Develop/ArticleImages/20/20637/CSDN_Dev_Image_2003-8-241900480.png" onload="return imgzoom(this,550)"><FONT size=3></FONT></v:shape><o:p></o:p></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: center; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt" align=center><SPAN lang=EN-US><FONT size=3> <o:p></o:p></FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">与</SPAN><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件不同的是，你可以直接单击页来切换页面。单击页在切换页面的同时也选中了整个</SPAN><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件。如果要选择某个页，可以先单击页切换到该页，然后再单击页面就可以了。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">（</SPAN><SPAN lang=EN-US>4</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">）在对象编辑器中，选择</SPAN><SPAN lang=EN-US>TabSheet1</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">，</SPAN><SPAN lang=EN-US>TabSheet2</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">和</SPAN><SPAN lang=EN-US>TabSheet3</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">的</SPAN><SPAN lang=EN-US>Caption</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">属性，把它分别修改为第一页，第二页和第三页。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''"><FONT size=3>这样看起来他们就完全一样。</FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=3> <o:p></o:p></FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><B><SPAN lang=EN-US>70</SPAN></B><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">）问：</SPAN></B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">但要是一样，为什么有两个不同的组件呢，用一个不就行了，好象他们并不真的完全一样？</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">答：</SPAN></B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">你说的对，千万不要被他们的外表假象所蒙蔽，实际上它们并不一样。</SPAN><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">是一种“假”多页组件，而</SPAN><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">才是“真”多页组件。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">我们知道多页组件把所要显示的信息放在不同的页中，实际上每个页都是一个窗体，并可以通过页来进行页的切换。</SPAN><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件虽然有多个页，但是实际上只有一个页的模板，也就是说，每次用户单击页时，这个页都要根据页模板更新一次，以便对用户的选择作出响应。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">很显然，如果需要在每个页上显示不同的组件，那么</SPAN><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">肯定无法胜任这种工作。因为你每次换页时，必须用代码更新页模板，这在</SPAN><SPAN lang=EN-US>C++Builder</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">中实在不是一个好办法。如果每个页所显示的组件相同只是内容有变化，那么使用</SPAN><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">会更加合适，因为它消耗的系统资源比较少。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 23.5pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">而</SPAN><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">则是每页对应一个页模板。所以，它适宜于每页都不同的情况。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=3> <o:p></o:p></FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><B><SPAN lang=EN-US>71</SPAN></B><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">）问：</SPAN></B><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件有哪些常用的属性？</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">答：</SPAN></B><SPAN lang=EN-US>HotTrack</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">属性用来确定当鼠标指向页时，<div id="bqndevcpkdvngqeoibc">'b的I2VL中rEi供网NI~=lb</div>页上的标签是否自动被加亮显示。缺省值为</SPAN><SPAN lang=EN-US>False</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><SPAN lang=EN-US>MultiLine</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">属性用来确定当页一行显示不下时是否显示到下一行。缺省值</SPAN><SPAN lang=EN-US>False</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">表示在一行无法显示完时，在行的右边自动出现一个双向箭头，可以用来移动页。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><SPAN lang=EN-US>TabHeight</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">属性用来设置页的高度。缺省值</SPAN><SPAN lang=EN-US>0</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">表示页的高度将自动适应页上文本的高度。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><SPAN lang=EN-US>TabWidth</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">属性用来设置页的宽度。缺省值</SPAN><SPAN lang=EN-US>0</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">表示页的宽度将自动适应页上文本的宽度。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><SPAN lang=EN-US>TabPosition</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">属性为</SPAN><SPAN lang=EN-US>tpTop</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">时，表示将页放在</SPAN><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件的上面，为</SPAN><SPAN lang=EN-US>tpBottom</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">时则表示放在下面。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件上的每一个页都有自己的索引，最左边的页的索引为</SPAN><SPAN lang=EN-US>0</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">，紧接着的页的索引为</SPAN><SPAN lang=EN-US>1</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">，以此类推。</SPAN><SPAN lang=EN-US>TabIndex</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">属性返回当前被按下的页。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><SPAN lang=EN-US>Tabs</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">属性用来设置页的个数及其标题，在设计时是使用一个字符串编辑器来实现的。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=3> <o:p></o:p></FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><B><SPAN lang=EN-US>72</SPAN></B><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">）问：</SPAN></B><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">控件有哪些比较重要的事件呢？</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">答：</SPAN></B><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">有两个比较重要的事件</SPAN><SPAN lang=EN-US>OnChange</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">和</SPAN><SPAN lang=EN-US>OnChanging</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">。每当页被选中后就会发生</SPAN><SPAN lang=EN-US>OnChange</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">事件，<div id="argmumcgiigpprvwgr">中供络He_-网X6@K育理@_@E</div>这时可以根据属性</SPAN><SPAN lang=EN-US>TabIndex</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">判断哪个页被选中，然后再采取响应的动作。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><SPAN lang=EN-US>OnChanging</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">事件正好发生在页被选中之前，也就是正好在一个页切换到另一个页之前。这个事件使得我们可以在页切换之前采取某些行动，例如在某些条件没有设置之前不准离开这一页。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''"><FONT size=3>其实这两个事件以前我们已经详细的研究过，这里就不再举例说明了。</FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=3> <o:p></o:p></FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><B><SPAN lang=EN-US>73</SPAN></B><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">）问：</SPAN></B><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件好像比</SPAN><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件功能更强大，<span id="uetrtjidtdujv">中管|Z[C}`提国专'7</span>它是怎样使用的？</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">答：</SPAN></B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">与</SPAN><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">相比，</SPAN><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件的功能确实更加强大，但是却并不复杂。</SPAN><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">中的每一个页都是一个</SPAN><SPAN lang=EN-US>TTabSheet</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件，<span id="jqaqvaahqth">网A(教件]0m^CF</span>这个组件实际上是一个容器，你可以在上面放置各种控件。每个</SPAN><SPAN lang=EN-US>TTabSheet</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件都有自己的属性。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">实际上这里有两层关系。最顶层的是</SPAN><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件，它负责管理多个</SPAN><SPAN lang=EN-US>TTabSheet</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件，而每个</SPAN><SPAN lang=EN-US>TTabSheet</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件也管理着放在它上面的组件。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=3> <o:p></o:p></FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><B><SPAN lang=EN-US>74</SPAN></B><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">）问：</SPAN></B><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件有哪些比较重要的属性呢？</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">答：</SPAN></B><SPAN lang=EN-US>ActivePage</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">这个属性显示当前被选中的页，它也可以用来切换页。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><SPAN lang=EN-US>MultiLine</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">属性用来确定当页一行显示不下时是否显示到下一行。缺省值</SPAN><SPAN lang=EN-US>False</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">表示在一行无法显示完时，在行的右边自动出现一个双向箭头，可以用来移动页。缺省值为</SPAN><SPAN lang=EN-US>False</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><SPAN lang=EN-US>TabHeight</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">属性用来设置页的高度。缺省值</SPAN><SPAN lang=EN-US>0</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">表示页的高度将自动适应页上文本的高度。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><SPAN lang=EN-US>TabWidth</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">属性用来设置页的宽度。缺省值</SPAN><SPAN lang=EN-US>0</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">表示页的宽度将自动适应页上文本的宽度。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><SPAN lang=EN-US>TabPosition</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">这个属性的值为</SPAN><SPAN lang=EN-US>tpTop</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">时，页将放在</SPAN><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件的上面，而为</SPAN><SPAN lang=EN-US>tpBottom</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">时将显示在下面。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''"><FONT size=3>此外，还有运行时态属性：</FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><SPAN lang=EN-US>Pages</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">这个只读属性是</SPAN><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件上所有的页组成的数组。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><SPAN lang=EN-US>PageCount</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">这个属性返回</SPAN><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件上的页数。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><B><SPAN lang=EN-US><FONT size=3> <o:p></o:p></FONT></SPAN></B></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><B><SPAN lang=EN-US>75</SPAN></B><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">）问：</SPAN></B><SPAN lang=EN-US> PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">的每一页都是一个</SPAN><SPAN lang=EN-US>TTabSheet</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件，那</SPAN><SPAN lang=EN-US>TTabSheet</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">有些什么属性呢？</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">答：</SPAN></B><SPAN lang=EN-US>TabVisible </SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">这个属性用来屏蔽某一页的显示。也说是说，它的值为</SPAN><SPAN lang=EN-US>False</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">的时候</SPAN><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件将不显示这个页了，但是这个页还存在，你还可以把这个属性设置为</SPAN><SPAN lang=EN-US>True</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">来恢复它的显示。在程序运行期间不能删除页，只能屏蔽页的显示。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><SPAN lang=EN-US>PageIndex</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">是页的索引号，</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''"><FONT size=3>此外，还有运行时态属性。</FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">属性返回该页所在的</SPAN><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><SPAN lang=EN-US>TabIndex</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">属性返回该页在所有可见页中的索引号。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">因为在程序运行时是不能删除页的，所以</SPAN><SPAN lang=EN-US>PageIndex</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">索引号是固定不变的。但是页可以被屏蔽，当没有页被屏蔽时，</SPAN><SPAN lang=EN-US>TabIndex</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">与</SPAN><SPAN lang=EN-US>PageIndex</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">完全相同；当有页被屏蔽时，</SPAN><SPAN lang=EN-US>TabIndex</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">就与</SPAN><SPAN lang=EN-US>PageIndex</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">就不同了。</SPAN><SPAN lang=EN-US>TabIndex</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">是这一页在所有可见页中的索引号，也就是说，第一个可见页的</SPAN><SPAN lang=EN-US>TabIndex</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">是</SPAN><SPAN lang=EN-US>0</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">，第二个可见页的</SPAN><SPAN lang=EN-US>TabIndex</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">是</SPAN><SPAN lang=EN-US>1</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">，<font id="svracwhvlfakg">;Bb0jh教I9}Z网@</font>以此类推。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><SPAN lang=EN-US><FONT size=3> <o:p></o:p></FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; tab-stops: 86.4pt 176.4pt 426.1pt" align=left><FONT size=3><B><SPAN lang=EN-US>76</SPAN></B><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">）问：</SPAN></B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">能设计一个例子让我更好的理解一下它们吗？</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">答：</SPAN></B><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">好的</SPAN> <SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">，首先在</SPAN><SPAN lang=EN-US>TabControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件的页面上放置一个编辑框组件。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">然后在</SPAN><SPAN lang=EN-US>PageControl</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">组件的</SPAN><SPAN lang=EN-US>Tab1</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: ''''Times New Roman''''; mso-hansi-font-family: ''''Times New Roman''''">页中放置一个编辑框组件。</SPAN></FONT></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-asc⌨️ 快捷键说明
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