WPF接受tab/TabIndex的ItemsControl的中

Question

我动态地添加WPF组合框，我希望能够选择添加的组合框用“Tab”键。 （动态生成的TabIndex或东西）

由于它实际上是：

alt text http://i50.tinypic.com/25jig6p.png

我想要什么：

alt text http://i48.tinypic.com/sb6gc5.png

你会如何做呢？

这是代码：

<ItemsControl ItemsSource="{Binding}" Name="myItemsControl"> 
    <ItemsControl.ItemTemplate> 
     <DataTemplate> 
      <Grid> 
       <Grid.ColumnDefinitions> 
        <ColumnDefinition Width="3*"/> 
        <ColumnDefinition Width="*"/> 
        <ColumnDefinition Width="Auto"/> 
       </Grid.ColumnDefinitions> 

       <Grid.RowDefinitions> 
        <RowDefinition Height="Auto"/> 
       </Grid.RowDefinitions> 

       <ComboBox Grid.Column="0" ItemsSource="{Binding Source={StaticResource SomeItems}}" IsSynchronizedWithCurrentItem="False" SelectedItem="{Binding Path=SomeValue, Mode=TwoWay}" DisplayMemberPath="Name" TabIndex="20"/> 
       <ComboBox Grid.Column="1" ItemsSource="{Binding Source={StaticResource SomeOtherItems}}" IsSynchronizedWithCurrentItem="False" SelectedItem="{Binding Path=SomeOtherValue, Mode=TwoWay}" DisplayMemberPath="Value" TabIndex="21"/> 
       <TextBox HorizontalContentAlignment="Stretch" Grid.Column="2" TabIndex="22" LostKeyboardFocus="TextBox_FormatAfterLostFocus"> 
        <TextBox.Text> 
         <Binding Path="Wert" Mode="TwoWay" /> 
        </TextBox.Text> 
       </TextBox> 

      </Grid> 
     </DataTemplate> 
    </ItemsControl.ItemTemplate> 
</ItemsControl> 

提前感谢！

Answer 1

这是一个小例子。我在Silverlight中这样做了，所以我想你必须修改它才能在WPF中工作。它并不完整，但它是一个起点。您可能想要在控件上使用Tag属性来确定哪些需要Tab键修复。

XAML：

<UserControl x:Class="SilverlightApplication6.MainPage" 
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
      mc:Ignorable="d" 
      d:DesignWidth="640" 
      d:DesignHeight="480"> 
    <Grid x:Name="LayoutRoot"> 

     <StackPanel> 
      <ItemsControl ItemsSource="{Binding}" 
          Name="myItemsControl"> 
       <ItemsControl.ItemTemplate> 
        <DataTemplate> 
         <Grid> 
          <Grid.ColumnDefinitions> 
           <ColumnDefinition Width="3*" /> 
           <ColumnDefinition Width="*" /> 
           <ColumnDefinition Width="Auto" /> 
          </Grid.ColumnDefinitions> 

          <Grid.RowDefinitions> 
           <RowDefinition Height="Auto" /> 
          </Grid.RowDefinitions> 

          <ComboBox Grid.Column="0" 
             ItemsSource="{Binding Source={StaticResource SomeItems}}" 
             IsSynchronizedWithCurrentItem="False" 
             SelectedItem="{Binding Path=SomeValue, Mode=TwoWay}" 
             DisplayMemberPath="Name" 
             TabIndex="20" /> 
          <ComboBox Grid.Column="1" 
             ItemsSource="{Binding Source={StaticResource SomeOtherItems}}" 
             IsSynchronizedWithCurrentItem="False" 
             SelectedItem="{Binding Path=SomeOtherValue, Mode=TwoWay}" 
             DisplayMemberPath="Value" 
             TabIndex="21" /> 
          <TextBox HorizontalContentAlignment="Stretch" 
            Grid.Column="2" 
            TabIndex="22"> 
           <TextBox.Text> 
            <Binding Path="Wert" 
              Mode="TwoWay" /> 
           </TextBox.Text> 
          </TextBox> 

         </Grid> 
        </DataTemplate> 
       </ItemsControl.ItemTemplate> 
      </ItemsControl> 
      <Button Content="Fix Tab indexes" Click="Button_Click" 
        TabIndex="999" 
        ></Button> 
     </StackPanel> 
    </Grid> 
</UserControl> 

和C＃：

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Net; 
using System.Windows; 
using System.Windows.Controls; 
using System.Windows.Documents; 
using System.Windows.Input; 
using System.Windows.Media; 
using System.Windows.Media.Animation; 
using System.Windows.Shapes; 
using System.Windows.Controls.Primitives; 

namespace SilverlightApplication6 
{ 
    public partial class MainPage : UserControl 
    { 
     public MainPage() 
     { 
      InitializeComponent(); 

      this.DataContext = new List<int>() { 1, 2, 3, 4, 5 }; 


     } 

     private void Button_Click(object sender, RoutedEventArgs e) 
     { 
      var controls = new List<Control>(); 
      GetChildrenOfSpecificType<Control>(this, ref controls, false); 

      var index = 1; 
      controls.ForEach(control => 
       { 
        if (control is ComboBox || control is TextBox) 
        { 
         control.TabIndex = index; 
         index++; 
        } 
       }); 
     } 

     private static void GetChildrenOfSpecificType<T>(DependencyObject parent, ref List<T> resultList, bool getSingle) where T : class 
     { 
      if (parent == null) 
       return; 
      else 
      { 
       int cnt = VisualTreeHelper.GetChildrenCount(parent); 

       if (cnt > 0) 
       { 
        for (int i = 0; i < cnt; i++) 
        { 
         var d = VisualTreeHelper.GetChild(parent, i); 
         if (d is T) 
         { 
          resultList.Add(d as T); 
          if (getSingle) 
           return; 
         } 

         GetChildrenOfSpecificType<T>(d, ref resultList, getSingle); 
        } 
       } 

      } 
     } 
    } 
}