c# – WPF TextBlock文本绑定

TextBlock绑定不起作用,我不知道为什么……

(此代码有效,但TextBlock未更新)

XAML

<TextBlock x:Name="filterallText"
 Text="{Binding UpdateSourceTrigger=PropertyChanged}" />

代码隐藏

filterallText.DataContext = LogSession.test.MyCoynt;

C#

public class Test : INotifyPropertyChanged {
 public int myCoynt;

     public int MyCoynt {
        get { return myCoynt; }
        set {
            myCoynt = value;
            NotifyPropertyChanged();
        }
    }

     public event PropertyChangedEventHandler PropertyChanged;

     protected virtual void NotifyPropertyChanged(
        [CallerMemberName] String propertyName = "") {
        PropertyChangedEventHandler handler = PropertyChanged;
        if (handler != null) {
            handler(this,new PropertyChangedEventArgs(propertyName));
        }
}

解决方法

试试这个：

<TextBlock x:Name="filterallText" 
    Text="{Binding UpdateSourceTrigger=PropertyChanged,Path=MyCoynt}" />

并将您的DataContext设置为：

filterallText.DataContext = LogSession.test;

原文地址：https://www.jb51.cc/csharp/91607.html