WPF 文本块文本绑定

本文关键字:文本 绑定 WPF | 更新日期: 2023-09-27 17:57:01

文本块绑定不起作用,我不知道为什么...

(此代码有效,但文本块未更新)

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));
        }
}

WPF 文本块文本绑定

试试这个:

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

并像这样设置您的DataContext

filterAllText.DataContext = LogSession.test;
<TextBlock x:Name="filterAllText" Text="{Binding Path=., UpdateSourceTrigger=PropertyChanged}" />

这应该有效,但这不是通常的方式

编辑:更好的方法是来自Goanne的anwser