XAML:
<Button Name="MyButton" Content="Update" Click="MyButton_Click" Width="65" Height="41"></Button>
<TextBlock Height="23" Name="tbtitle" Text="{Binding Title,Mode=OneTime}" />
<TextBlock Height="23" Name="tbtitles" Text="{Binding Title,Mode=OneWay}" />
<TextBlock Height="23" Name="tbprice" Text="{Binding Price,Mode=TwoWay}" />
XAML.CS:
public partial class MainPage : UserControl
{
Book book = new Book();
public MainPage()
{
InitializeComponent();
book.Title = "CCTV-5频道";
book.Price = 12;
tbtitles.DataContext = book;
tbtitle.DataContext = book;
tbprice.DataContext = book;
}
private void MyButton_Click(object sender, RoutedEventArgs e)
{
book.Price = 44;
book.Title = "中华电台-5频道";
}
Bool.CS:
public class Book : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
private string _Title;
public string Title
{
get { return _Title; }
set
{
_Title=value;
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs("Title"));
}
}
}
private decimal _price;
public decimal Price
{
get
{
return _price;
}
set
{
_price = value;
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs("Price"));
}
}
}
}
代码很简单,重点在于实体类要实现INotifyPropertyChanged