WPF / c＃ - 从UI绑定到静态属性 [英] WPF / c# - Binding from UI to static property

问题描述

我很难将我在TextBox中输入的文本绑定到非静态类中的静态属性。以下是具体细节：



UI位于主窗口中，文本框名称为 tb 。

该类（名为 c ）是非静态和公共的。

属性（名为 p ）是静态的 - 如 public static string p {get;设置;}

所需的方向是从UI到属性;另一个方向不是必需的，但没有区别。

我已经尝试了很多语法示例，但无法设法这样做。



请帮忙！

解决方案

我不确定我是否理解你（因为：所需的方向是从UI到物业;另一个方向不是必需的，但没有区别），但是......



我建议读这个： 静态类和静态类成员（C＃编程指南） [ ^ ] - 静态成员部分：

MSDN写道：

非静态类可以包含静态方法，字段，属性或事件。即使没有创建类的实例，静态成员也可以在类上调用。 静态成员始终由类名访问，而不是实例名。

这也许有帮助：静态构造函数（C＃编程指南） [ ^ ]



所以，你必须重新考虑你的类定义。

你试过x：static吗？

见http://stackoverflow.com/questions/32395/accessing-static-fields-in-xaml [ ^ ]

< blockquote>你不能绑定到那样的静态。由于没有涉及的DependencyObject（或实现INotifyPropertyChanged的对象实例），绑定无法获得更新通知。

I am having a hard time binding the text I enter in a TextBox to a static property in a non-static class. Here are the specifics:

UI is in the main window, the textbox is names tb.
The class (named c) is non-static and public.
the property (named p) is static - as in public static string p { get; set;}
the required direction is from the UI to the property; The other direction is not required, but doesn't make a difference.
I have tried lots of examples of syntax, but cannot manage to do so.

Please help!

解决方案

Not sure i understand you well (because of this: "the required direction is from the UI to the property; The other direction is not required, but doesn't make a difference"), but...

I'd suggest to read this: Static Classes and Static Class Members (C# Programming Guide)[^] - Static Members part:

MSDN wrote:

A non-static class can contain static methods, fields, properties, or events. The static member is callable on a class even when no instance of the class has been created. The static member is always accessed by the class name, not the instance name.

This might be helpful too: Static Constructors (C# Programming Guide)[^]

So, you have to re-think your class definition.

Did you tried x:static?
See http://stackoverflow.com/questions/32395/accessing-static-fields-in-xaml[^]

You can't bind to a static like that. There's no way for the binding to get notified of updates since there's no DependencyObject (or object instance that implement INotifyPropertyChanged) involved.

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