C＃中类成员声明中的标记'='无效[关闭](Invalid token '=' in class member declaration in C# [close

C＃中类成员声明中的标记'='无效[关闭](Invalid token '=' in class member declaration in C# [closed])

我有这个代码：

public class Probna1 : INotifyPropertyChanged { Person person = new Person(); person.FirstName = "Joseph"; person.LastName = "Samuel"; FirstNameTextBox.DataContext = person; }

符号=有这个错误消息：类成员声明中的令牌'='无效。

我有公共字段FirstName和LastName的Class Person {get; 组;}

I have this code:

public class Probna1 : INotifyPropertyChanged { Person person = new Person(); person.FirstName = "Joseph"; person.LastName = "Samuel"; FirstNameTextBox.DataContext = person; }

The signs = have this error mesage: Invalid token '=' in class member declaration.

I have Class Person with public fields FirstName and LastName with {get; set;}

最满意答案

您不能直接在类中设置属性，必须将声明放在方法中。

尝试在构造函数中执行此操作：

public class Probna1 : INotifyPropertyChanged { Person person; public Probna1() { person = new Person(); person.FirstName = "Joseph"; person.LastName = "Samuel"; FirstNameTextBox.DataContext = person; } }

You can't set your properties directly in the class, you have to put your declarations in a method.

Try to do it in the constructor like this:

public class Probna1 : INotifyPropertyChanged { Person person; public Probna1() { person = new Person(); person.FirstName = "Joseph"; person.LastName = "Samuel"; FirstNameTextBox.DataContext = person; } }