Question

我有使用VisualStateManger的按钮样式。目前这些样式位于<Grid.Resources>并且没有任何错误。我试图将这些样式移动到资源字典，它给出了以下错误。任何人都知道为什么它在样式处于用户控制内部时工作，而在移动到资源字典时不起作用。

标签＆＃39; visualstatemanager.visualstategroups＆＃39;在XML中不存在名称空间http://schemas.microsoft.com/winfx/2006/xaml/presentation

我正在使用.Net 3.5

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:vsm="clr-namespace:System.Windows;assembly=wpftoolkit"
    xmlns:system="clr-namespace:System;assembly=mscorlib"
    >
    <Style x:Key="Home" BasedOn="{StaticResource PagingButton}" TargetType="{x:Type Button}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType='Button'>
                    <Border Name='border' Background='{StaticResource HomeButtonBackground}' CornerRadius='5,5,0,0'>
                        <VisualStateManager.VisualStateGroups>
                            <VisualStateGroup x:Name="CommonStates">
                                <VisualState x:Name="Normal" >
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(Border.Background)" Storyboard.TargetName="border">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource ButtonBackground}"/>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Pressed">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(Border.Background)" Storyboard.TargetName="border">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource ButtonBackgroundPressed}"/>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>    
</ResourceDictionary>

Answer 1

问题是你正在尝试使用未引用的程序集中的内容。你需要在根目录的Window / Page标签中添加它，其他名称空间为

xmlns:vsm="clr-namespace:System.Windows;assembly=System.Windows"

然后你可以用它作为

<vsm:VisualStateManager.VisualStateGroups>
  <vsm:VisualStateGroup x:Name="CommonStates">
    <vsm:VisualState x:Name="MouseOver">
      <Storyboard>
        <ColorAnimation Storyboard.TargetName="tickBox"
            Storyboard.TargetProperty="(Rectangle.Fill).
                                (SolidColorBrush.Color)"
            To="PaleGreen" Duration="0:0:0.5" />
      </Storyboard>
    </vsm:VisualState>
  </vsm:VisualStateGroup>
</vsm:VisualStateManager.VisualStateGroups>

无法将VisualStateManger.VisualStateGroup的按钮样式添加到资源字典

1 个答案: