C# 字段初始值设定项不能引用非静态字段、方法或属性
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A field initializer cannot reference the non-static field, method, or property
提问by Madurika Welivita
Following is my code :
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);
I am getting following error :
我收到以下错误：
A field initializer cannot reference the non-static field, method, or property 'BITSIntegrationModule.SyncService.SyncHelper.manager'
A field initializer cannot reference the non-static field, method, or property 'BITSIntegrationModule.SyncService.SyncHelper.manager'
采纳答案by NDJ
The line
线
BitsJob uploadBitsJob = manager.CreateJob(DisplayName, JobType.Upload);
can't access manager because it hasn't been set to anything yet - you could move the allocation into the constructor -
无法访问管理器，因为它还没有被设置为任何东西 - 您可以将分配移动到构造函数中 -
private readonly BitsManager manager;
private const string DisplayName = "Test Job";
BitsJob readonly uploadBitsJob;
public SyncHelper()
{
manager = new BitsManager();
uploadBitsJob = manager.CreateJob(DisplayName, JobType.Upload);
}
回答by Russki
That usually happens when trying to access non-static property from static method. Please provide a bit more code.
这通常发生在尝试从静态方法访问非静态属性时。请提供更多代码。
回答by P.Brian.Mackey
uploadBitsJobis declared at the class level which makes it a field. Field instances can't be used to initialize other fields.
uploadBitsJob在类级别声明，使其成为一个字段。字段实例不能用于初始化其他字段。
Instead, you can declare the field without initializing it:
相反，您可以在不初始化的情况下声明该字段：
BitsJob uploadBitsJob;
BitsJob uploadBitsJob;
Then initialize the field in the constructor:
然后在构造函数中初始化字段：
public SyncHelper()
{
manager = new BitsManager();
uploadBitsJob = manager.CreateJob(DisplayName, JobType.Upload);//here. Now manager is initialized
}
