也许这是一个愚蠢的问题,但我只是想知道如何设计这种布局:
首先,我有一个MenuList ObservableCollection。所以我必须将这些菜单放入stackPanel,如下所示:
<Window.Resources>
<DataTemplate x:Key="MenuItemTemplate">
<Button Content="{Binding ContentText}" Panel.ZIndex="{Binding PIndex}" Padding="10" FontSize="20"/>
</DataTemplate>
</Window.Resources>
<ItemsControl ItemsSource="{Binding Menus}" ItemTemplate="{StaticResource MenuItemTemplate}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
一段时间后,在此菜单下添加了一个新栏:
<ItemsControl ItemsSource="{Binding Menus}" ItemTemplate="{StaticResource MenuItemTemplate}">
.......
</ItemsControl>
<Border Background="Green" VerticalAlignment="Top" Panel.ZIndex="10" Height="30" Margin="0,81,0,0"/>
现在它看起来像这样:
要求是,如果选择了一个按钮,它应该在栏的顶部,其他未选择的按钮应该被栏覆盖:
但按钮&#39;在StackPanel中,所以它们都基于StackPanel的ZIndex。
我的问题是,如何在xaml中设计这样的布局?
答案 0 :(得分:0)
如果条形图只是一个绿色条形图,您也可以将它作为单独的Stackpanel放在DataTemplate上,然后在Button的stackpanel上放置一个Style.Trigger来增加ZIndex OnMouseOver。即使只是重复,酒吧也会看起来无缝。
所以而不是:
<DataTemplate x:Key="MenuItemTemplate">
<Button Content="{Binding ContentText}" Panel.ZIndex="{Binding PIndex}" Padding="10" FontSize="20"/>
</DataTemplate>
你将
<DataTemplate x:Key="MenuItemTemplate">
<Grid>
<StackPanel >
<StackPanel.Style>
<Style TargetType="StackPanel" >
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Panel.ZIndex" Value="3"></Setter>
</Trigger>
<Trigger Property="IsMouseOver" Value="False">
<Setter Property="Panel.ZIndex" Value="1"></Setter>
</Trigger>
</Style.Triggers>
</Style>
</StackPanel.Style>
<Button Width="100" Height="100" Content="{Binding ContentText}" Padding="10" FontSize="20" />
</StackPanel>
<StackPanel Panel.ZIndex="2">
<Border Background="Green" VerticalAlignment="Top" Height="30"/>
</StackPanel>
</Grid>
</DataTemplate>
(如果你运行它,这看起来并不完美,但你明白了)
答案 1 :(得分:0)
我认为使用renderTransform更好。无需在xaml中硬编码PIndex。见下文。
<DataTemplate x:Key="MenuItemTemplate">
<Button Content="{Binding}" Padding="10" FontSize="20" Height="30" Width="100">
<Button.Style>
<Style TargetType="Button">
<Style.Triggers>
<Trigger Property="IsFocused" Value="True">
<Setter Property="RenderTransform">
<Setter.Value>
<ScaleTransform CenterX="0.5" CenterY="0.5" ScaleX="1" ScaleY="1.2"></ScaleTransform>
</Setter.Value>
</Setter>
</Trigger>
</Style.Triggers>
</Style>
</Button.Style>
</Button>
</DataTemplate>
<Border Background="Green" VerticalAlignment="Top" Height="30" Margin="0,150,0,0"/>
<ItemsControl ItemsSource="{Binding Menus}" ItemTemplate="{StaticResource MenuItemTemplate}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
代码背后:
public ObservableCollection<string> Menus { get; set; }
编辑:
<DataTemplate x:Key="MenuItemTemplate">
<Button Content="{StaticResource image1}" Height="30" Width="100">
<Button.Style>
<Style TargetType="Button">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Grid>
<Border x:Name="Border" Height="{TemplateBinding Height}"
Width="{TemplateBinding Width}" Background="Orange">
</Border>
<ContentPresenter ContentSource="Content" HorizontalAlignment="Stretch" VerticalAlignment="Top"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsFocused" Value="True">
<Setter Property="RenderTransform" TargetName="Border">
<Setter.Value>
<ScaleTransform CenterX="0.5" CenterY="0.5" ScaleX="1" ScaleY="1.2"></ScaleTransform>
</Setter.Value>
</Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
</Style.Triggers>
</Style>
</Button.Style>
</Button>
</DataTemplate>
答案 2 :(得分:0)
Dockpanel作为我们的ItemPanelTemplate是正确的选择。
使用带有按钮和矩形的网格(用于底部边框)作为DataTemplate来显示菜单项。
在上面的第2步中,不要在DataTemplate的网格中应用保证金。而是使用Grid Padding,Button margin作为间距。
DataTemplate:
<DataTemplate x:Key="MenuItemTemplate">
<Grid Background="DodgerBlue">
<Button Margin="5 5 5 0" HorizontalAlignment="Left" Panel.ZIndex="1" Content="{Binding ContentText}" Padding="1" Width="75" GotKeyboardFocus="Button_GotKeyboardFocus" LostKeyboardFocus="Button_LostKeyboardFocus"/>
<Rectangle Panel.ZIndex="2" Fill="BurlyWood" Height="5" Margin="0 25 0 0"/>
</Grid>
</DataTemplate>
ItemPanelTemplate:
<ItemsPanelTemplate>
<DockPanel Height="30" LastChildFill="True"/>
</ItemsPanelTemplate>
按原样使用以下代码:
<ItemsControl Panel.ZIndex="10" VerticalAlignment="Top" ItemsSource="{Binding Menus}" ItemTemplate="{DynamicResource MenuItemTemplate}" Margin="0">
<ItemsControl.Resources>
<DataTemplate x:Key="MenuItemTemplate">
<Grid Background="DodgerBlue">
<Button Margin="0" HorizontalAlignment="Left" Panel.ZIndex="1" Content="{Binding ContentText}" Padding="1" Width="75" GotKeyboardFocus="Button_GotKeyboardFocus" LostKeyboardFocus="Button_LostKeyboardFocus"/>
<Rectangle Panel.ZIndex="2" Fill="BurlyWood" Height="5" Margin="0 25 0 0"/>
</Grid>
</DataTemplate>
</ItemsControl.Resources>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<DockPanel Height="30" LastChildFill="True"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
代码隐藏
public IList Menus { get; set; }
public Window1()
{
InitializeComponent();
Menus = new[] { new { ContentText = "Menu1" }, new { ContentText = "Menu2" }, new { ContentText = "Menu3" } };
this.DataContext = this;
}
private void Button_GotKeyboardFocus(object sender, KeyboardFocusChangedEventArgs e)
{
Panel.SetZIndex((Button)e.OriginalSource, 12);
}
private void Button_LostKeyboardFocus(object sender, KeyboardFocusChangedEventArgs e)
{
Panel.SetZIndex((Button)e.OriginalSource, 1);
}