如何使用自动实现的属性访问类? [英] How to access class with auto implemented property?

问题描述

嗨盖兹，

为什么我的具有自动实现的属性的类获取空值?这是我所做的:

1.我使用自动实现的属性实例化该类，并设置以下值:

hi guyz,

why my class with auto implemented property gets null values? here''s what i did:

1. i instantiate the class with the auto-implemented property and set the values like:

class AIproperty
{
   public string CustomerName{ get; set; }

}

//Main class
AIproperty setvalues = new AIproperty();
setvalues.CustomerName = txtCustomer.text.ToString():


//other class
AIproperty setvalues = new AIproperty();
console.write(setvalues.CustomerName)

console.write(setvalues.CustomerName)
返回空值

我该怎么办?

首先，-thanks

console.write(setvalues.CustomerName)
returns null value

what should i do?

-thanks in advance

推荐答案

首先，应在类构造函数中使用string.Empty初始化属性，以解决空值问题.

First of all, you should initialize the property with string.Empty in the class constructor which will solve the null value problem.

class AIproperty
{
   public string CustomerName{ get; set; }

   public AIproperty()
   {
      this.CustomerName = string.Empty;
   }
}

如果有帮助，请将其标记为答案

Mark it as answer if it is helpful

类AIProperty的实现正确.如果CustomerName在分配后返回null，则唯一的原因是:分配的值为null.在您的代码中，分配的值是txtCustomer.text.ToString().检查一下:它必须是null.

顺便说一句，ToString是多余的，因为txtCustomer.text可能是字符串类型.

-SA

The class AIProperty is implemented correctly. If CustomerName returns null after assignment, the only reason is: assigned value was null. In your code the assigned value was txtCustomer.text.ToString(). Check it up: it must be null.

By the way, chances are, ToString is redundant as txtCustomer.text might be of the string type.

—SA

它仍然返回空值，txtCustomer.text具有值，但是当涉及到AIProperty时，它仍然返回空值，我也尝试过这个，

it still returns null value, txtCustomer.text has value, but when it comes to AIProperty it still returns null value, i also tried this,

class AIproperty
{
   public string CustomerName{ get; set; }
 
   public AIproperty()
   {
      this.CustomerName = string.Empty;
   }
}

当另一个类获得该值时，它仍返回空值，请帮助.

when the other class gets the value it still returns null value,, help pls.

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