[UWP] [C＃] VisualStateManager不会恢复到原始状态 [英] [UWP][C#]VisualStateManager does not revert to original state

问题描述

以下定义用作GridView的ItemContainer样式，SelectionMode ="Single"。当选择一个元素时，一个特定的字形变得可见以表示选择。



它适用于8.1，但是使用UWP它接受改变的状态： Selected 使字形显示，但不会恢复到原始状态：字形保持选择已更改（状态
未选择），即使SelectionChanged事件将旧选择作为已删除项目。



其他州存在类似问题（如按下和聚焦），我只是不显示完整的VisualStateManager以简化。



 

The following definition is used as ItemContainer style for a GridView, SelectionMode="Single". When an element is selected, a particular glyph becomes visible to indicate selection.

It works right with 8.1, but with UWP it accepts changed state: Selected makes the glyph to appear, but does not revert to the original state: glyph stays with selection changed (state Unselected), even though SelectionChanged event brings the old selection as removed item.

Similar problems exist for other states (like Pressed and Focused), I just don't show the full VisualStateManager for simplicity.

 

 <Style x:Key="MyItemContainerStyle" TargetType="SelectorItem">
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="SelectorItem">
        <Border>
        <Grid >
          <!-- Layout of the grid -->
        </Grid>
        <VisualStateManager.VisualStateGroups>
         <VisualStateGroup x:Name="SelectionStates">
           <VisualState x:Name="Unselected" />
           <VisualState x:Name="SelectedUnfocused">
             <Storyboard>
              <DoubleAnimation Storyboard.TargetName="SelectingGlyph"
                Storyboard.TargetProperty="Opacity"
                Duration="0" To="1" />
             </Storyboard>
            </VisualState>
            <VisualState x:Name="Selected">
              <Storyboard>
                <DoubleAnimation Storyboard.TargetName="SelectingGlyph"
                  Storyboard.TargetProperty="Opacity"
                  Duration="0" To="1" />
              </Storyboard>
            </VisualState>
          </VisualStateGroup>
        </VisualStateManager.VisualStateGroups>
      </Border>
    </ControlTemplate>
  </Setter.Value>
 </Setter>
</Style>

也试过了

Tried also

   <VisualState x:Name="Unselected">
    <Storyboard>
      <DoubleAnimation Storyboard.TargetName="SelectingGlyph"
         Storyboard.TargetProperty="Opacity"
         Duration="0" To="0" />
    </Storyboard>
  </VisualState>

$
没有帮助

Didn't help

推荐答案

您好pcyanide，

尝试使用"正常"和"正常"而不是"取消选择"。

Hi pcyanide,
Try using "Normal" instead of "Unselected".

  <VisualState x:Name="Normal">
    <Storyboard>
      <DoubleAnimation Storyboard.TargetName="SelectingGlyph"
         Storyboard.TargetProperty="Opacity"
         Duration="0" To="0" />
    </Storyboard>
  </VisualState>

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