WPF功能区-隐藏选项卡标题（单个选项卡应用程序）

Question

我是WPF的新手，正在尝试使用功能区控件。

我在应用程序中只有一个选项卡，希望隐藏标题但仍显示选项卡本身。

我一直在尝试各种属性和样式，但是我只能隐藏整个选项卡。

我尝试过：ribbontab可见性，ribbontab.header可见性，隐藏在TabHeaderItemCollection中的设置，将样式xaml应用于ribbontab中的ribbontabheader元素，尝试使用tabheadertemplate属性，并且通常在api中进行筛选以寻找可能相关的任何内容。

Google只显示了如何隐藏整个标签。

还有其他想法吗？

Answer 1

我设法通过将控件向上移动 47 个像素来隐藏选项卡标题和应用程序菜单......

<r:Ribbon Margin="0,-47,0,0" DockPanel.Dock="Top" x:Name="ribbon">

注意：您可以通过执行此操作仅隐藏应用程序菜单而不隐藏选项卡...

<r:Ribbon DockPanel.Dock="Top" x:Name="ribbon">             
    <r:Ribbon.ApplicationMenu>
        <r:RibbonApplicationMenu Visibility="Collapsed" />
    </r:Ribbon.ApplicationMenu>

仅隐藏选项卡标题，我不能完全做到。通过如下覆盖功能区类，我确实非常接近......

class RibbonNoTab : Ribbon
{
    public override void OnApplyTemplate()
    {
        base.OnApplyTemplate();

        var ctrl = this.GetDescendants<Grid>().FirstOrDefault();
        if (ctrl != null)
        {
            ctrl.RowDefinitions[1].Height = new GridLength(0, System.Windows.GridUnitType.Pixel);
        }
    }
}

GetDescendants 扩展方法只是在可视化树中搜索指定类型的内容。取自这里：http : //blog.falafel.com/finding-controls-by-type-in​​-silverlight-and-wpf/

上述方法的唯一问题是看起来像剩余 1 像素高的条。你必须仔细观察才能看到它！

Answer 2

借助其他答案，有几种方法可以在不使用自定义派生类的情况下做到这一点

\n\n

public class RibbonBehavior\n{\n\n    public static bool GetHideRibbonTabs(DependencyObject obj)\n    {\n        return (bool)obj.GetValue(HideRibbonTabsProperty);\n    }\n\n    public static void SetHideRibbonTabs(DependencyObject obj, bool value)\n    {\n        obj.SetValue(HideRibbonTabsProperty, value);\n    }\n\n    // Using a DependencyProperty as the backing store for HideRibbonTabs.  This enables animation, styling, binding, etc...\n    public static readonly DependencyProperty HideRibbonTabsProperty =\n        DependencyProperty.RegisterAttached("HideRibbonTabs", typeof(bool), typeof(RibbonBehavior), new UIPropertyMetadata(false,OnHideRibbonTabsChanged));\n\n\n\n    public static void OnHideRibbonTabsChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)\n    {\n        if (d == null || d.GetType() != typeof(Ribbon)) return;\n\n        (d as Ribbon).Loaded += ctrl_Loaded;\n\n    }\n\n    static void ctrl_Loaded(object sender, RoutedEventArgs e)\n    {\n        if (sender == null || sender.GetType() != typeof(Ribbon)) return;\n\n        Ribbon _ribbon = (Ribbon)sender;\n\n        var tabGrid = _ribbon.GetDescendants<Grid>().FirstOrDefault();\n        tabGrid.RowDefinitions[1].Height = new GridLength(0, System.Windows.GridUnitType.Pixel);\n\n\n        foreach (Line line in _ribbon.GetDescendants<Line>())\n            line.Visibility = Visibility.Collapsed;\n\n    }\n}\n

\n\n

然后在你的xaml中：

\n\n

<Ribbon SelectedIndex="0" a:RibbonBehavior.HideRibbonTabs="true">\n

\n\n

这将为您提供一个漂亮的方形丝带盒，没有标签：

\n\n

\n\n

省略折叠行的代码会在选项卡原来所在的位置留下一点点，这让我很困扰。

\n\n

\n\n

如果您不使用 MVVM，您也可以将加载的代码直接放入后面的代码中，如果使用的话，也可以将其放入 EventToCommand 中。这种方式可重用性较差，但结果相同。

\n\n

编辑：这是 GetDescendant 方法的代码

\n\n

 public static class VisualTreeExtensions\n{\n    /// <summary>\n    /// Gets children, children\xe2\x80\x99s children, etc. from \n    /// the visual tree that match the specified type\n    /// </summary>\n    public static List<T> GetDescendants<T>(this DependencyObject parent)\n        where T : UIElement\n    {\n        List<T> children = new List<T>();\n        int count = VisualTreeHelper.GetChildrenCount(parent);\n        if (count > 0)\n        {\n            for (int i = 0; i < count; i++)\n            {\n                UIElement child = (UIElement)VisualTreeHelper.GetChild(parent, i);\n                if (child is T)\n                {\n                    children.Add((T)child);\n                }\n                children.AddRange(child.GetDescendants<T>());\n            }\n            return children;\n        }\n        else\n        {\n            return new List<T> { };\n        }\n    }\n    /// <summary>\n    /// Gets children, children\xe2\x80\x99s children, etc. from \n    /// the visual tree that match the specified type and elementName\n    /// </summary>\n    public static List<T> GetDescendants<T>(this DependencyObject parent, string elementName)\n        where T : UIElement\n    {\n        List<T> children = new List<T>();\n        int count = VisualTreeHelper.GetChildrenCount(parent);\n        if (count > 0)\n        {\n            for (int i = 0; i < count; i++)\n            {\n                UIElement child = (UIElement)VisualTreeHelper.GetChild(parent, i);\n                if (child is T && (child is FrameworkElement)\n                    && (child as FrameworkElement).Name == elementName)\n                {\n                    children.Add((T)child);\n                }\n                children.AddRange(child.GetDescendants<T>(elementName));\n            }\n            return children;\n        }\n        else\n        {\n            return new List<T> { };\n        }\n    }\n    /// <summary>\n    /// Gets the first child, child\xe2\x80\x99s child, etc. \n    /// from the visual tree that matches the specified type\n    /// </summary>\n    public static T GetDescendant<T>(this DependencyObject parent)\n        where T : UIElement\n    {\n        List<T> descendants = parent.GetDescendants<T>();\n        if (descendants.Count > 0)\n        {\n            return descendants[0];\n        }\n        else\n        {\n            return null;\n        }\n    }\n    /// <summary>\n    /// Gets the first child, child\xe2\x80\x99s child, etc. from \n    /// the visual tree that matches the specified type and elementName\n    /// </summary>\n    public static T GetDescendant<T>(this DependencyObject parent, string elementName)\n        where T : UIElement\n    {\n        List<T> descendants = parent.GetDescendants<T>(elementName);\n        if (descendants.Count > 0)\n        {\n            return descendants[0];\n        }\n        else\n        {\n            return null;\n        }\n    }\n    /// <summary>\n    /// Gets the first parent, parent\xe2\x80\x99s parent, etc. from the \n    /// visual tree that matches the specified type\n    /// </summary>\n    public static T GetAntecedent<T>(this DependencyObject root)\n        where T : UIElement\n    {\n        if (root == null)\n        {\n            return null;\n        }\n        if (root is T)\n        {\n            return (T)root;\n        }\n        else\n        {\n            DependencyObject parent = VisualTreeHelper.GetParent(root);\n            if (parent == null)\n            {\n                return null;\n            }\n            else\n            {\n                return parent.GetAntecedent<T>();\n            }\n        }\n    }\n    /// <summary>\n    /// Gets the first parent, parent\xe2\x80\x99s parent, etc. from the \n    /// visual tree that matches the specified type and elementName\n    /// </summary>\n    public static T GetAntecedent<T>(this DependencyObject root, string elementName)\n        where T : UIElement\n    {\n        if (root == null)\n        {\n            return null;\n        }\n        if (root is T && (root is FrameworkElement)\n            && (root as FrameworkElement).Name == elementName)\n        {\n            return (T)root;\n        }\n        else\n        {\n            DependencyObject parent = VisualTreeHelper.GetParent(root);\n            if (parent == null)\n            {\n                return null;\n            }\n            else\n            {\n                return parent.GetAntecedent<T>(elementName);\n            }\n        }\n    }\n}\n

\n