首先, 类的声明需要做一些手脚
using System.ComponetModel;
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public class Status : INotifyPropertyChanged
{
private string _status;
public string status
{
get { return _status;}
set {
_status = value;
OnPropertyChanged("status");
}
}
public event PropertyChangedEventHandler PropertyChanged;
private void OnPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
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基本上是固定的设置
只要在
setter
部分执行OnPropertyChanged(属性名)
即可正确地讲当次改动通知到对应的binding, 准确的说是通知到DataContext
窗口处理 (*.xaml.cs)
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private Status status = new Status();
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设置组件的数据
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this.DataContext = status;
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或者
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label.DataContext = status;
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都可以
界面(*.xaml)
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<Label x:Name="label" Content="{Binding Path=status}" HorizontalAlignment="Left" FontSize="50" Height="75" Margin="90,93,0,0" VerticalAlignment="Top" Width="317"/>
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