WPF中,如何从Toolbar中跳出Tab循环

<script language='javascript' src='http://www.shiqiaotou.com/donetk/Header.js'></script>                                        WPF中,如何从Toolbar中跳出Tab循环
                                                                                         周银辉

WPF中. 在Toolbar中连续使用Tab键时,其会循环与其中.你可以运行以下代码并发现该问题:

< Window  xmlns ="http://schemas.microsoft.com/winfx/2006/xaml/presentation"  xmlns:sys ="clr-namespace:System;assembly=mscorlib"  xmlns:x ="http://schemas.microsoft.com/winfx/2006/xaml"   >

  < DockPanel >
    < ToolBar  DockPanel.Dock ="Top"   >
           
     < Button  Content ="B"  
            Command ="EditingCommands.ToggleBold"   />
     < Button  Content ="U"  
            Command ="EditingCommands.ToggleUnderline"   />
     < Button  Content ="I"  
            Command ="EditingCommands.ToggleItalic"   />
    </ ToolBar >
    < RichTextBox  />
  </ DockPanel >  

</ Window >

如何跳出该循环呢, 很简单, 将TabBar的 TabNavigation 属性设置为Continue就可以了 : )
运行以下代码你会发现, Tab键焦点可以从按钮"I"跳转到RichTextBox

< Window  xmlns ="http://schemas.microsoft.com/winfx/2006/xaml/presentation"  xmlns:sys ="clr-namespace:System;assembly=mscorlib"  xmlns:x ="http://schemas.microsoft.com/winfx/2006/xaml"   >

  < DockPanel >
    < ToolBar  DockPanel.Dock ="Top"  
           KeyboardNavigation.TabNavigation ="Continue" >
     < Button  Content ="B"  
            Command ="EditingCommands.ToggleBold"   />
     < Button  Content ="U"  
            Command ="EditingCommands.ToggleUnderline"   />
     < Button  Content ="I"  
            Command ="EditingCommands.ToggleItalic"   />
    </ ToolBar >
    < RichTextBox  />
  </ DockPanel >  

</ Window >

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