如何在WPF中创建可折叠面板

Question

我正在创建一个Windows应用程序(WPF)和C#.在我看来,我必须添加一些布局,如浏览文件夹,在列表视图中显示文件夹中的文件等

我的要求是:上面提到的面板应该是可折叠的面板,我想,我们在wpf中没有可折叠面板的选项.

我必须为此创建一个自定义控件？如果是这样,请建议我怎么做？

Answer 1

扩展器控件可能正是您正在寻找的.来自MSDN:

扩展器类

表示显示标题的控件,该标题具有显示内容的可折叠窗口.

Answer 2

可能喜欢这个？

 <Grid>
    <Grid.RowDefinitions>
        <RowDefinition Height="auto"/>
        <RowDefinition Height="2*"/>
    </Grid.RowDefinitions>
    <Border  Background="Red" Height="12" VerticalAlignment="Top" MouseEnter="StackPanel_MouseEnter" MouseLeave="StackPanel_MouseLeave"></Border>
</Grid>    

C#代码落后

 private void StackPanel_MouseEnter(object sender, MouseEventArgs e)
    {
        Border sp = sender as Border;
        DoubleAnimation db = new DoubleAnimation();
        //db.From = 12;
        db.To = 150;
        db.Duration = TimeSpan.FromSeconds(0.5);
        db.AutoReverse = false;
        db.RepeatBehavior = new RepeatBehavior(1);
        sp.BeginAnimation(StackPanel.HeightProperty, db);
    }

    private void StackPanel_MouseLeave(object sender, MouseEventArgs e)
    {
        Border sp = sender as Border;
        DoubleAnimation db = new DoubleAnimation();
        //db.From = 12;
        db.To = 12;
        db.Duration = TimeSpan.FromSeconds(0.5);
        db.AutoReverse = false;
        db.RepeatBehavior = new RepeatBehavior(1);
        sp.BeginAnimation(StackPanel.HeightProperty, db);
    }
}

您可以使用任何元素控件,如网格,堆栈,停靠,边框......