Silverlight DataGrid：使用 VisualStateManager 隐藏列
是否可以在不使用代码隐藏的情况下隐藏数据网格的列？ 例如通过使用VisualStateManager？
<UserControl
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:data="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data"
x:Class="Buttons.MainPage"
Width="640" Height="480">
<StackPanel x:Name="LayoutRoot" Width="624" HorizontalAlignment="Right" Margin="0,0,8,0" >
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="EditStates">
<VisualState x:Name="ReadOnly" />
<VisualState x:Name="Edit">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ShownInEditMode" Storyboard.TargetProperty="(UIElement.Visibility)" BeginTime="00:00:00" Duration="00:00:00.0010000">
<DiscreteObjectKeyFrame KeyTime="00:00:00">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<data:DataGrid AutoGenerateColumns="False" ItemsSource="{Binding BBRNumbers}">
<data:DataGrid.Columns>
<data:DataGridTextColumn Header="AlwaysShown" Width="80" Binding="{Binding Municipality}" />
<data:DataGridTextColumn Header="ShownInEditMode" Width="73" Binding="{Binding Estate}" Visibility="Collapsed" />
</data:DataGrid.Columns>
</data:DataGrid>
</StackPanel>
调用以下命令应该会隐藏该列，但这不起作用。
VisualStateManager.GoToState(this, "Edit", false);
有什么想法吗？
Is it possible to hide a column of a datagrid, without using codebehind?
E.g. by using the VisualStateManager?
<UserControl
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:data="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data"
x:Class="Buttons.MainPage"
Width="640" Height="480">
<StackPanel x:Name="LayoutRoot" Width="624" HorizontalAlignment="Right" Margin="0,0,8,0" >
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="EditStates">
<VisualState x:Name="ReadOnly" />
<VisualState x:Name="Edit">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ShownInEditMode" Storyboard.TargetProperty="(UIElement.Visibility)" BeginTime="00:00:00" Duration="00:00:00.0010000">
<DiscreteObjectKeyFrame KeyTime="00:00:00">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<data:DataGrid AutoGenerateColumns="False" ItemsSource="{Binding BBRNumbers}">
<data:DataGrid.Columns>
<data:DataGridTextColumn Header="AlwaysShown" Width="80" Binding="{Binding Municipality}" />
<data:DataGridTextColumn Header="ShownInEditMode" Width="73" Binding="{Binding Estate}" Visibility="Collapsed" />
</data:DataGrid.Columns>
</data:DataGrid>
</StackPanel>
Calling the following should then hide the column, but this doesnt work.
VisualStateManager.GoToState(this, "Edit", false);
Any ideas?
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到目前为止我还无法想出一个简单的解决方案。然而，公平的是，我至少告诉你为什么这不起作用。为了对属性进行动画处理，该属性需要是
DependencyProperty。DataGridColumn的Visibility属性不是DependencyProperty，因此它不会产生动画。I haven't been able to come up with a simple solution to this as yet. However its only fair that I at least tell you why this isn't working. In order to animate a property the property needs to be
DependencyProperty. TheVisibilityproperty of theDataGridColumnis not aDependencyProperty, hence it does not animate.您可以尝试设置列宽=0
You can try setting column width = 0
您可以子类化 DataGrid 或创建附加属性来切换可见性。但是，与不透明度不同，除非在 VisualStateManager 中启用 FluidLayout，否则您无法真正为可见性“设置动画”。
有关流畅 UI 的更多信息，请查看 http://www.microsoft .com/design/toolbox/tutorials/fluidui/
You can either subclass DataGrid or create an attached property to toggle Visibility. However, unlike Opacity, you can't really 'animate' Visibility unless you enable FluidLayout in the VisualStateManager.
For more info regarding the fluid UI, please take a look at http://www.microsoft.com/design/toolbox/tutorials/fluidui/