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如何在运行时更改 TabControl 的 TabItem 索引？

发布于 2024-12-26 04:40:57 字数 138 浏览 4 评论 0原文

我的 TabControl 中有五个 TabItem，我需要在运行时连续移动每个选项卡的位置。谁能告诉我如何在运行时将选项卡索引从一个位置更改为另一个位置。

谢谢，
@nagaraju。

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挽袖吟 2025-01-02 04:40:57

使用以下解决方案：

TabItem tempTab = new TabItem();
            tempTab = control.Items[0] as TabItem;
            control.Items[0] = control.Items[1];
            control.Items[1] = tempTab;

这肯定会起作用，并且您必须从代码后面执行此操作。

Use the below solution:

TabItem tempTab = new TabItem();
            tempTab = control.Items[0] as TabItem;
            control.Items[0] = control.Items[1];
            control.Items[1] = tempTab;

This will definitely work and you have to do from code behind.

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冰之心 2025-01-02 04:40:57

如果您使用 ObservableCollection ，您只需更改集合中项目的位置，它将反映在视图中......

例如......

<TabControl ContentTemplate="{StaticResource ResourceKey=listView}"
            ItemContainerStyle="{StaticResource ResourceKey=myTabItem}"
            ItemsSource="{Binding Path=Persons}"
            SelectedItem="{Binding Path=SelectedPerson}"
            Style="{StaticResource ResourceKey=myTab}"
            TabStripPlacement="Bottom">
    <TabControl.ItemTemplate>
        <DataTemplate>
            <StackPanel Orientation="Horizontal">
                <Image Width="16"
                       Height="16"
                       Margin="0,0,2,0"
                       Source="Themes\Water lilies.jpg" />
                <TextBlock Margin="0,4,0,0"
                           VerticalAlignment="Center"
                           FontWeight="Bold"
                           Text="{Binding Path=Name}" />
            </StackPanel>
        </DataTemplate>
    </TabControl.ItemTemplate>
</TabControl>
<Button Grid.Row="1" Width="50" Command="{Binding Path=ChangePositionCommand}"> ClickMe </Button>

在这里，您只需更改 < 中项目的位置ViewModel 中的 code>TabList ，该位置将相应更改...

在您的 ViewModel 中，

如果获取数据和设置命令，我有实现...这取决于您如何执行

public ICommand ChangePositionCommand { get; private set; }

public Person SelectedPerson
{
    get { return selectedPerson; }
    set
    {
        selectedPerson = value;
        InvokePropertyChanged(new PropertyChangedEventArgs("SelectedPerson"));
    }
}

private void ChangePosition(object obj)
{
    int index = Persons.IndexOf(SelectedPerson);

    if (index <= (Persons.Count-1))
    {
        Persons.Move(index,index+1);
    }
    else
    {
        Persons.Move(index,0);
    }
}

上面的代码我给出 <代码>索引超出范围但是我离 IDE 还很远，所以无法测试你可以根据你的情况重新启动它。

If you are using ObservableCollection the you Just have to change the position of the Item in your collection it will be refelected in View...

For Example..

<TabControl ContentTemplate="{StaticResource ResourceKey=listView}"
            ItemContainerStyle="{StaticResource ResourceKey=myTabItem}"
            ItemsSource="{Binding Path=Persons}"
            SelectedItem="{Binding Path=SelectedPerson}"
            Style="{StaticResource ResourceKey=myTab}"
            TabStripPlacement="Bottom">
    <TabControl.ItemTemplate>
        <DataTemplate>
            <StackPanel Orientation="Horizontal">
                <Image Width="16"
                       Height="16"
                       Margin="0,0,2,0"
                       Source="Themes\Water lilies.jpg" />
                <TextBlock Margin="0,4,0,0"
                           VerticalAlignment="Center"
                           FontWeight="Bold"
                           Text="{Binding Path=Name}" />
            </StackPanel>
        </DataTemplate>
    </TabControl.ItemTemplate>
</TabControl>
<Button Grid.Row="1" Width="50" Command="{Binding Path=ChangePositionCommand}"> ClickMe </Button>

Here you just Change the Position of the item in TabList in ViewModel and that Position will be changed accordingly...

In Your ViewModel

I have the implementation if getting Data and Setting Up Commands... that up to you how you Do it

public ICommand ChangePositionCommand { get; private set; }

public Person SelectedPerson
{
    get { return selectedPerson; }
    set
    {
        selectedPerson = value;
        InvokePropertyChanged(new PropertyChangedEventArgs("SelectedPerson"));
    }
}

private void ChangePosition(object obj)
{
    int index = Persons.IndexOf(SelectedPerson);

    if (index <= (Persons.Count-1))
    {
        Persons.Move(index,index+1);
    }
    else
    {
        Persons.Move(index,0);
    }
}

The above code my give INdex out of bound but I am no where near an IDE so cant test that you could reapir it according to you.

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