目录
前言
这次主要是UI界面的学习和复习
数据模板,ListBox
ListBox算是最常用的数据模板了
- ListBox
- ListBox.ItemsPanel:布局容器申明
- ListBox.ItemContainerStyle:
- Style,Property=Template:
- ControlTemplate TargetType="ListBoxItem":子项样式
- ContentPresenter:子项展示内容
- TemplateBinding:绑定模板控件对应属性
- ContentPresenter:子项展示内容
- ControlTemplate TargetType="ListBoxItem":子项样式
- Style,Property=Template:
- ListBox.ItemTemplate:
- DataTemplate:子项数据
举例
<!--ItemsSource,声明数据源-->
<ListBox ItemsSource="{Binding NavigationMenuService.Items}"
x:Name="listMenuBox"
Grid.Column="1">
<!--ItemsPanel,设置容器-->
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal" />
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
<!--ItemContainerStyle,设置子项样式-->
<ListBox.ItemContainerStyle>
<Style TargetType="ListBoxItem">
<Setter Property="FocusVisualStyle"
Value="{x:Null}" />
<!--ItemContainerStyle,设置子项样式模板-->
<Setter Property="Template">
<Setter.Value>
<!--ControlTemplate,确定设置的是ListBoxItem-->
<ControlTemplate TargetType="ListBoxItem">
<Grid>
<Border x:Name="border" />
<Border x:Name="borderHeader"
Background="{TemplateBinding Background}" />
<!--ContentPresenter,就是ListItem的代称-->
<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
TextBlock.Foreground="{TemplateBinding Foreground}" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListBox.ItemContainerStyle>
<!--数据源,其实就是上面的ContentPresenter -->
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<!--<md:PackIcon Kind="{Binding IconStr}"
Width="20"
Height="20" />-->
<TextBlock Text="{Binding Title}"
Margin="10,0"
FontSize="16" />
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
触发器
触发器又好几种,但是最简单的就是Trigger。Wpf哪里都好,就是太罗嗦了。注意,使用TargetName的时候,就没有智能提示了,只能手撸。要么就在对应的地方触发智能提示然后复制粘贴过来
<ListBox.ItemContainerStyle>
<Style TargetType="ListBoxItem">
<Setter Property="FocusVisualStyle"
Value="{x:Null}" />
<!--ItemContainerStyle,设置子项样式模板-->
<Setter Property="Template">
<Setter.Value>
<!--ControlTemplate,确定设置的是ListBoxItem-->
<ControlTemplate TargetType="ListBoxItem">
<Grid>
<Border x:Name="border" />
<Border x:Name="borderHeader"
Background="{TemplateBinding Background}" />
<!--ContentPresenter,就是ListItem的代称-->
<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
TextBlock.Foreground="{TemplateBinding Foreground}" />
</Grid>
<!--这里使用TargetName 就没有智能提示了-->
<ControlTemplate.Triggers>
<Trigger Property="IsSelected"
Value="True">
<Setter TargetName="border"
Property="BorderBrush"
Value="#fff" />
<Setter TargetName="border"
Property="BorderThickness"
Value="0,0,0,3" />
<Setter TargetName="borderHeader"
Property="Background"
Value="#fff" />
<Setter TargetName="borderHeader"
Property="Opacity"
Value="0.1" />
</Trigger>
<Trigger Property="IsMouseOver"
Value="True">
<Setter TargetName="border"
Property="BorderBrush"
Value="#fff" />
<Setter TargetName="border"
Property="BorderThickness"
Value="0,0,0,3" />
<Setter TargetName="borderHeader"
Property="Background"
Value="#fff" />
<Setter TargetName="borderHeader"
Property="Opacity"
Value="0.1" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListBox.ItemContainerStyle>
</ListBox>
行为
我个人认为行为是相当于给event绑定触发事件。他的用处就是方便Binding导入CommandParameter。
<i:Interaction.Triggers>
<i:EventTrigger EventName="SelectionChanged">
<i:InvokeCommandAction Command="{Binding NavigateCommand}"
CommandParameter="{Binding ElementName=listMenuBox,Path=SelectedItem}" />
</i:EventTrigger>
</i:Interaction.Triggers>
regoin使用
注册regoin命名空间,比如MainViewRegion
<!--注册MainViewRegion-->
<ContentControl prism:RegionManager.RegionName="MainViewRegion"
x:Name="MainViewContentControl" Grid.Row="1" />
Ioc获取Resion管理器
private readonly IRegionManager regionManager;
public MainViewModel(IRegionManager regionManager)
{
this.regionManager = regionManager;
}
添加跳转命令
/// <summary>
/// 跳转Regoin
/// </summary>
/// <param name="pageName">跳转的pageName的名称</param>
private void NavigatePage(string pageName)
{
regionManager.Regions[regoin对应的名称,比如之前我们定义的MainViewRegion]
.RequestNavigate(pageName, callBack =>
{
//打印回调函数,判断region是否跳转成功
var result = callBack.Result;
if (result == null) {
Debug.WriteLine(callBack.Error.Message);
}else if (!(bool)result)
{
Debug.WriteLine(callBack.Error.Message);
}
});
}
简单逻辑
声明:region,触发regionManager跳转功能,带入regionName和跳转对应的view。注意,我们这个必须提前Ioc注册了才行
/// <summary>
/// Ioc注入
/// </summary>
/// <param name="services"></param>
protected override void RegisterTypes(IContainerRegistry services)
{
services.RegisterForNavigation<MainView, MainViewModel>();
services.RegisterForNavigation<DashboardView, DashboardViewModel>();
services.RegisterSingleton<NavigationMenuService>();
}
标签:regionManager,regoin,笔记,Halcon,callBack,首页,跳转,services,ListBox
From: https://www.cnblogs.com/gclove2000/p/18294964