轉載自:https://blog.csdn.net/ceasadan/article/details/61414879
模板使用方式:首先定義模板,然後在把對應的key應用到控件對應的屬性中;
屬性對應:
控件模板,對應控件的Template;
數據模板,對應控件的ItemTemplate屬性;
面板模板,對應控件的ItemsPanel屬性。
控件模板:如果控件的樣式不能滿足,可自定義控件模板來設計樣式。
數據模板:內容控件通過ContentTemplate屬性支持數據模板;列表控件(即繼承自ItemsControl類的控件),通過ItemTemplate屬性支持數據模板,該模板用於顯示由ItemSource提供集合中的每一項。
面板模板:ItemsPanelTemplate用於指定項的佈局。 ItemsControl 類型具有一個類型爲ItemsPanelTemplate 的 ItemsPanel 屬性。
一、控件模板:如果控件的樣式不能滿足,可自定義控件模板來設計樣式.
<Window.Resources>
<ControlTemplate x:Key="roundBtnTemplte">
<Grid>
<Ellipse Name="roundBtn" Width="100" Height="100" Fill="AliceBlue">
</Ellipse>
<ContentPresenter Content="{TemplateBinding Button.Content}" VerticalAlignment="Center">
</ContentPresenter>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter TargetName="roundBtn" Property="Fill" Value="Yellow">
</Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Window.Resources>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="1*"></ColumnDefinition>
<ColumnDefinition Width="1*"></ColumnDefinition>
</Grid.ColumnDefinitions>
<StackPanel Margin="10" Grid.Column="0" Orientation="Horizontal">
<Button Padding="5" Margin="5" Content="Round Button" Template="{StaticResource
roundBtnTemplte}"></Button>
<Button Padding="5" Margin="5">nomal button</Button>
</StackPanel>
</Grid>
2.數據模板:內容控件通過ContentTemplate屬性支持數據模板;列表控件(即繼承自ItemsControl類的控件),通過ItemTemplate屬性支持數據模板,該模板用於顯示由ItemSource提供集合中的每一項。
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<!--創建數據模板-->
<HierarchicalDataTemplate x:Key="NavDataTem" ItemsSource="{Binding Children}">
<Border Name="myborder" BorderBrush="AliceBlue" BorderThickness="2" Margin="3">
<StackPanel Orientation="Horizontal" Margin="0,3">
<CheckBox IsChecked="{Binding IsChecked}" Content=""/>
<Image Source="{Binding Icon}" Width="16" Height="16"></Image>
<TextBlock Name="txtOne" Margin="5" FontWeight="Bold" Text="{Binding ItemName}" ></TextBlock>
<TextBlock Name="txtTwo" Margin="5" Text="{Binding ItemProperty}" ></TextBlock>
</StackPanel>
</Border>
<HierarchicalDataTemplate.Triggers>
<Trigger SourceName="myborder" Property="IsMouseOver" Value="True">
<Setter TargetName="txtOne" Property="Background" Value="LightGray"></Setter>
<Setter TargetName="txtTwo" Property="FontSize" Value="20"></Setter>
</Trigger>
</HierarchicalDataTemplate.Triggers>
</HierarchicalDataTemplate>
</Window.Resources>
<StackPanel Margin="5">
<TreeView Name="treeTest" ScrollViewer.VerticalScrollBarVisibility="Visible"
ItemTemplate="{StaticResource NavDataTem}">
</TreeView>
</StackPanel>
</Window>
public class NavBarItem : INotifyPropertyChanged
{
public string ID { get { return Guid.NewGuid().ToString(); } }
public string ItemName { get; set; }
public string ItemProperty { get; set; }
public List<NavBarItem> Children { get; set; }
public NavBarItem()
{
Children = new List<NavBarItem>();
}
public event PropertyChangedEventHandler PropertyChanged;
public void OnPropertyChanged(PropertyChangedEventArgs e)
{
if (PropertyChanged != null)
PropertyChanged(this, e);
}
}
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
List<NavBarItem> _NavBarItems = new List<NavBarItem>();
List<NavBarItem> NavBarItems
{
get { return _NavBarItems; }
set { _NavBarItems = value; }
}
public MainWindow()
{
InitializeComponent();
treeTest.ItemsSource = NavBarItems;
List<NavBarItem> childrenOne = new List<NavBarItem>();
childrenOne.Add(new NavBarItem()
{
ItemName = "C++",
ItemProperty = "C++語言"
});
childrenOne.Add(new NavBarItem()
{
ItemName = "C",
ItemProperty = "C語言"
});
childrenOne.Add(new NavBarItem()
{
ItemName = "C#",
ItemProperty = "C#語言"
});
childrenOne.Add(new NavBarItem()
{
ItemName = "Java",
ItemProperty = "Java語言"
});
List<NavBarItem> childrenTwo = new List<NavBarItem>();
childrenTwo.Add(new NavBarItem()
{
ItemName = "Windows",
ItemProperty = "微軟"
});
childrenTwo.Add(new NavBarItem()
{
ItemName = "Linux",
ItemProperty = "開源"
});
childrenTwo.Add(new NavBarItem()
{
ItemName = "MacOS",
ItemProperty = "蘋果"
});
NavBarItems.Add(new NavBarItem()
{
ItemName = "編程語言",
Children = childrenOne
});
NavBarItems.Add(new NavBarItem()
{
ItemName = "操作系統",
Children = childrenTwo
});
}
}
說明:控件模板和數據模板的關係
控件只是數據和行爲的載體,至於它本身長什麼樣子和數據長什麼樣子都是靠Template決定的。決定控件外觀的是ControlTemplate,決定數據外觀的是DataTemplate,它們正是Control類的Template和ContentTemplate兩個屬性的值。
一般來說,ControlTemplate內都有一個ContentPresenter,這個ContentPresenter的ContentTemplate就是DataTemplate類型。所以數據模板和控件模板的關係如下圖所示:
Control類型
- Template屬性 (ControlTemplate類型)
- ContentPresenter
- ContentTemplate (DataTemplate類型)
ContentControl類型
- Template屬性 (ControlTemplate類型) 繼承自Control
- ContentTemplate (DataTemplate類型)
ItemsControl類型
- Template屬性 (ControlTemplate類型) 繼承自Control
- ItemsPanel屬性 (ItemsPanelTemplate類型) 指定佈局容器
- ItemTemplate屬性 (DateTemplate類型) 每個Item的Template
3.面板模板
增加ItemsPanelTemplate調整面板佈局
<Window.Resources>
<!--創建數據模板-->
<HierarchicalDataTemplate x:Key="NavDataTem" ItemsSource="{Binding Children}">
<Border Name="myborder" BorderBrush="AliceBlue" BorderThickness="2" Margin="3">
<StackPanel Orientation="Horizontal" Margin="0,3">
<CheckBox IsChecked="{Binding IsChecked}" Content=""/>
<Image Source="{Binding Icon}" Width="16" Height="16"></Image>
<TextBlock Name="txtOne" Margin="5" FontWeight="Bold" Text="{Binding ItemName}" ></TextBlock>
<TextBlock Name="txtTwo" Margin="5" Text="{Binding ItemProperty}" ></TextBlock>
</StackPanel>
</Border>
<HierarchicalDataTemplate.Triggers>
<Trigger SourceName="myborder" Property="IsMouseOver" Value="True">
<Setter TargetName="txtOne" Property="Background" Value="LightGray"></Setter>
<Setter TargetName="txtTwo" Property="FontSize" Value="20"></Setter>
</Trigger>
</HierarchicalDataTemplate.Triggers>
</HierarchicalDataTemplate>
<ItemsPanelTemplate x:Key="ItemsPanelTem">
<StackPanel Orientation="Horizontal"
VerticalAlignment="Center"
HorizontalAlignment="Left"/>
</ItemsPanelTemplate>
</Window.Resources>
<StackPanel Margin="5">
<TreeView Name="treeTest" ScrollViewer.VerticalScrollBarVisibility="Visible"
ItemTemplate="{StaticResource NavDataTem}" ItemsPanel="{StaticResource ItemsPanelTem}">
</TreeView>
</StackPanel>
</Window>