系列文章目录

前言

The following few are familiar enough.
好好学习,落到实处.

参考链接：

• 官方文档
• WPF从零到1教程详解
• 系列文章（I have gained、Understanding data binding）
• https://www.cnblogs.com/cdaniu/category/2167439.html
• 触发器

参考代码

//导航
<TextBlock  HorizontalAlignment="Left"
            Margin="10,10,10,10">
    <Hyperlink  NavigateUri="Page2.xaml">Go To Page 2</Hyperlink>
</TextBlock>
// 导航
ExpenseReportPage expenseReportPage = new ExpenseReportPage(this.peopleListBox.SelectedItem);
this.NavigationService.Navigate(expenseReportPage);
//get control element
var srcButton = e.Source as Button;
var fe = (FrameworkElement) sender;
var fe2 = (FrameworkElement) args.Source;
//Simple binding of data
xmlns:local="clr-namespace:WpfApp2"
 <local:User x:Key="myData" Name="zhouyi"/>
<TextBox>
<TextBox.Text>
    <Binding Source="{StaticResource myData}" Path="Name"
                UpdateSourceTrigger="PropertyChanged"/>
</TextBox.Text>
</TextBox>
<TextBlock Text="{Binding Source={StaticResource myData}, Path=Name}"/>

public class User:INotifyPropertyChanged
{
    
    private string _name;

    public string? Name
    {
    
        get {
     return _name; }
        set
        {
    
            _name = value;
            OnPropertyChanged("Name");
        }
    }

    public event PropertyChangedEventHandler PropertyChanged;
    protected void OnPropertyChanged(string name)
    {
    
        var handler = PropertyChanged;
        handler?.Invoke(this, new PropertyChangedEventArgs(name));
    }
}

//------------
<Border Margin="10" BorderBrush="Silver" BorderThickness="3" Padding="8">
<DockPanel>
    <TextBlock>Choose a Color:</TextBlock>
    <ComboBox Name="myComboBo" SelectedIndex="0">
        <ComboBoxItem>Green</ComboBoxItem>
        <ComboBoxItem>Blue</ComboBoxItem>
        <ComboBoxItem>Red</ComboBoxItem>
    </ComboBox>
    <Canvas>
        <Canvas.Background>
            <Binding ElementName="myComboBo" Path="SelectedItem.Content"/>
        </Canvas.Background>
    </Canvas>
</DockPanel>
</Border>