WPF 精修篇 数据绑定到对象

Posted 2021-03-21 lonelyxmas

原文:WPF 精修篇 数据绑定到对象

 

数据绑定到对象 

首先 我们需要一个对象

 public class Preson
    {
        private string name;
 
        public string Name
        {
            get { return name; }
            set { name = value; }
        }
        private string address;
 
        public string Address
        {
            get { return address; }
            set { address = value; }
        }
        private int  age;
 
        public int Age
        {
            get { return age; }
            set { age = value; }
        }
    }

设置依赖属性绑定数据上下文

        public MainWindow()
        {
            InitializeComponent();
            Preson = new Preson() { Name = "慧哥", Address = "大连", Age = 30 };
            DataContext = Preson;
        }
 
 
 
        public Preson Preson
        {
            get { return (Preson)GetValue(PresonProperty); }
            set { SetValue(PresonProperty, value); }
        }
 
        // Using a DependencyProperty as the backing store for Preson.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty PresonProperty =
            DependencyProperty.Register("Preson", typeof(Preson), typeof(MainWindow), new PropertyMetadata(null));
 

 

   <Grid HorizontalAlignment="Right" Width="517">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="109*"/>
            <ColumnDefinition Width="112*"/>
            <ColumnDefinition Width="94*"/>
            <ColumnDefinition Width="202*"/>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="24*"/>
            <RowDefinition Height="25*"/>
            <RowDefinition Height="25*"/>
            <RowDefinition Height="86*"/>
        </Grid.RowDefinitions>
        <TextBox HorizontalAlignment="Left" Height="23" Margin="101,27,0,0" Grid.Row="1" TextWrapping="Wrap" Text="{Binding Age,Mode=TwoWay}" VerticalAlignment="Top" Width="120" Grid.ColumnSpan="2" />
        <TextBlock HorizontalAlignment="Left" Margin="41,22,0,0" TextWrapping="Wrap" Text="名字" VerticalAlignment="Top"/>
        <TextBlock HorizontalAlignment="Left" Margin="79,22,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Text="{Binding Name}" Width="30"/>
        <TextBlock HorizontalAlignment="Left" Margin="10,22,0,0" TextWrapping="Wrap" Text="address" VerticalAlignment="Top" Grid.Column="1"/>
        <TextBlock Margin="63.667,22,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Text="{Binding Address}" Grid.Column="1"/>
        <TextBlock HorizontalAlignment="Left" Margin="20,22,0,0" TextWrapping="Wrap" Text="age" VerticalAlignment="Top" Grid.Column="2"/>
        <TextBlock Margin="57,22,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Text="{Binding Age}" Grid.Column="2"/>
        <TextBox HorizontalAlignment="Left" Height="23" Margin="0,17,0,0" Grid.Row="1" TextWrapping="Wrap" VerticalAlignment="Top" Width="120" Grid.ColumnSpan="2" Grid.Column="2" />
    </Grid>

前台WPF绑定 

这里也可以用 INotifyPropertyChanged 也可以

 

集合使用ObservableCollenction<对象>