C# WPF 数据绑定到字符串属性
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WPF Data Binding to a string property
提问by James
I have a question about data binding which I am struggling with.
我有一个关于数据绑定的问题，我正在努力解决这个问题。
I have the following property in my xaml.cs file:
我的 xaml.cs 文件中有以下属性：
private string _stationIdInstruction;
public event PropertyChangedEventHandler PropertyChanged;
public string StationIdInstruction
{
get { return _stationIdInstruction; }
set
{
_stationIdInstruction = value;
OnPropertyChanged("StationIdInstruction");
}
}
protected void OnPropertyChanged(string name)
{
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(name));
}
}
How can I bind a TextBlock to StationIdInstructions so it picks up the string property as its Text and update the TextBlock.Text when I update StationIdInstructions.
如何将 TextBlock 绑定到 StationIdInstructions，以便它在我更新 StationIdInstructions 时选择字符串属性作为其文本并更新 TextBlock.Text。
Any help is appreciated.
任何帮助表示赞赏。
采纳答案by Dmitri Nesteruk
Yes, and don't forget to specify the binding context. E.g.,
是的，不要忘记指定绑定上下文。例如，
<Window ... Name="MyWindow">
<Grid DataContext="{Binding ElementName=MyWindow, Path=.}">
<TextBlock Text="{Binding Path=StationIdInstruction}" />
回答by Arcturus
Set your StationIdInstructions object on the DataContext of your control, and your TextBlock like so:
在控件的 DataContext 和 TextBlock 上设置 StationIdInstructions 对象，如下所示：
<TextBlock Text="{Binding StationIdInstruction}" />
