甲字段初始不能引用非静态字段，方法或属性(A field initializer cannot re

以下是我的代码：

private BitsManager manager;
private const string DisplayName = "Test Job";       

public SyncHelper()
{
    manager = new BitsManager();
}        

BitsJob uploadBitsJob = manager.CreateJob(DisplayName, JobType.Upload);

我收到以下错误：

A field initializer cannot reference the non-static field, method, or property 'BITSIntegrationModule.SyncService.SyncHelper.manager'

Answer 1:

该生产线

BitsJob uploadBitsJob = manager.CreateJob(DisplayName, JobType.Upload);

因为它没有被设置为任何事情不能访问管理器 - 你可以分配进入构造 -

private readonly BitsManager manager;
private const string DisplayName = "Test Job";       
BitsJob readonly uploadBitsJob;

public SyncHelper()
{
  manager = new BitsManager();
  uploadBitsJob = manager.CreateJob(DisplayName, JobType.Upload);
}   

Answer 2:

uploadBitsJob是在一流水平，这使得它的字段声明。 现场实例无法用于初始化等领域。

相反，你可以声明栏没有初始化它：

BitsJob uploadBitsJob;

然后初始化在构造函数中的字段：

public SyncHelper()
{
  manager = new BitsManager();
  uploadBitsJob = manager.CreateJob(DisplayName, JobType.Upload);//here.  Now manager is initialized
}  

Answer 3:

，试图从静态方法访问非静态属性时，通常会发生。 请提供更多的代码。

文章来源: A field initializer cannot reference the non-static field, method, or property