在Visual Studio设计器中隐藏WPF元素

• 如果还没有,请添加xmlns:d=“http://schemas.microsoft.com/expression/blend/2008"

不错的解决方案,我也遇到了类似的问题,我同意在某些情况下需要它。这是一个小更新,允许您在设计时编辑值以打开和关闭IsHidden。我还应用了ScaleTransform而不是设置Width和Height,以在显示控件夹点等时减少屏幕伪影,并在隐藏的控件已经设置了Width和Height属性时避免冲突(假设控件上还没有设置LayoutTransform)。

Public Class DesignModeTool

  Public Shared ReadOnly IsHiddenProperty As DependencyProperty = DependencyProperty.RegisterAttached( _
    "IsHidden", GetType(Boolean), GetType(DesignModeTool), _
    New FrameworkPropertyMetadata(False, New PropertyChangedCallback(AddressOf OnIsHiddenChanged)))

  Public Shared Sub SetIsHidden(ByVal element As FrameworkElement, ByVal value As Boolean)
    element.SetValue(IsHiddenProperty, value)
  End Sub

  Public Shared Function GetIsHidden(ByVal element As FrameworkElement) As Boolean
    Return DirectCast(element.GetValue(IsHiddenProperty), Boolean)
  End Function

  Private Shared Sub OnIsHiddenChanged(ByVal d As DependencyObject, ByVal e As DependencyPropertyChangedEventArgs)
    If System.ComponentModel.DesignerProperties.GetIsInDesignMode(d) AndAlso True.Equals(e.NewValue) Then
      With DirectCast(d, FrameworkElement)
        .LayoutTransform = New ScaleTransform(0.001, 0.001)
      End With
    ElseIf System.ComponentModel.DesignerProperties.GetIsInDesignMode(d) AndAlso False.Equals(e.NewValue) Then
      With DirectCast(d, FrameworkElement)
        .LayoutTransform = Nothing
      End With
    End If
  End Sub
End Class 

static class DesignModeTool
{
    public static readonly DependencyProperty IsHiddenProperty =
        DependencyProperty.RegisterAttached("IsHidden",
            typeof(bool),
            typeof(DesignModeTool),
            new FrameworkPropertyMetadata(false,
                new PropertyChangedCallback(OnIsHiddenChanged)));

    public static void SetIsHidden(FrameworkElement element, bool value)
    {
        element.SetValue(IsHiddenProperty, value);
    }

    public static bool GetIsHidden(FrameworkElement element)
    {
        return (bool)element.GetValue(IsHiddenProperty);
    }

    private static void OnIsHiddenChanged(DependencyObject d,
                                          DependencyPropertyChangedEventArgs e)
    {
        if (!DesignerProperties.GetIsInDesignMode(d)) return;
        var element = (FrameworkElement)d;
        element.RenderTransform = (bool)e.NewValue
           ? new ScaleTransform(0, 0)
           : null;
    }
}

由于没有内置的方法来实现这一点,我决定自己实现一个解决方案,使用附加属性可以非常容易地做到这一点:

Public Class DesignModeTool
    Public Shared ReadOnly IsHiddenProperty As DependencyProperty = DependencyProperty.RegisterAttached( _
        "IsHidden", GetType(Boolean), GetType(DesignModeTool), _
        New FrameworkPropertyMetadata(False, New PropertyChangedCallback(AddressOf OnIsHiddenChanged)))

    Public Shared Sub SetIsHidden(ByVal element As UIElement, ByVal value As Boolean)
        element.SetValue(IsHiddenProperty, value)
    End Sub

    Public Shared Function GetIsHidden(ByVal element As UIElement) As Boolean
        Return DirectCast(element.GetValue(IsHiddenProperty), Boolean)
    End Function

    Private Shared Sub OnIsHiddenChanged(ByVal d As DependencyObject, ByVal e As DependencyPropertyChangedEventArgs)
        If System.ComponentModel.DesignerProperties.GetIsInDesignMode(d) AndAlso True.Equals(e.NewValue) Then
            With DirectCast(d, FrameworkElement)
                .Width = 0
                .Height = 0
            End With
        End If
    End Sub
End Class

<Grid ... local:DesignModeTool.IsHidden="True">
[stuff I don't want to be shown in the designer]
</Grid>

除了不使用设计器(真的,考虑一下这个),您还可以将 Grid 变成一个单独的 UserControl 那样的话,你可以更新一下

我使用矩形在模态对话框执行期间遮挡主窗口。我绑定了可见性数据,但矩形使设计器无法使用。我将Z索引设置为一次性数据绑定,回退值低于我想要隐藏的窗口。当应用程序启动时,矩形的Z索引绑定到比窗口更高的值。

我在另一边。..讨厌VS 2012在设计器中隐藏隐藏的WPF控件。我需要看到它们,所以我将gregsdennis代码修改为:

public class DesignModeTool
{
    public static readonly DependencyProperty IsHiddenProperty = DependencyProperty.RegisterAttached("IsHidden",   typeof(bool),  typeof(DesignModeTool),   new FrameworkPropertyMetadata(false, new PropertyChangedCallback(OnIsHiddenChanged)));

    public static void SetIsHidden(FrameworkElement element, bool value)
    {
        element.SetValue(IsHiddenProperty, value);
    }

    public static bool GetIsHidden(FrameworkElement element)
    {
        return (bool)element.GetValue(IsHiddenProperty);
    }

    private static void OnIsHiddenChanged(DependencyObject d,
                                          DependencyPropertyChangedEventArgs e)
    {
        if (!DesignerProperties.GetIsInDesignMode(d)) return;
        var element = (FrameworkElement)d;
        element.Visibility=Visibility.Visible;

    }
}

wpfClasses2:DesignModeTool。IsHidden=“False”将在设计器模式下显示控件。