错误MongoDb无法隐式转换C＃类型

Question

我正在尝试在MONGODB中创建一个通用的“ GET”。但是它不会转换错误：

不能隐式转换类型

我的服务

namespace AdmissionAnonymousForm.Infrascructure.Services
{
    public class BankService: IBankService
    {
    private readonly IMongoCollection<Bank> _bank;

    public BankService(IConfiguration config)
    {
        var client = new MongoClient(config.GetConnectionString("AdmissionAnonymous"));
        var database = client.GetDatabase("AdmissionAnonymous");
        _bank = database.GetCollection<Bank>("Bank");
    }

    public  Task<Bank> Get()
    {
        return   _bank.Find(bank => true).ToListAsync();
    }
  }
}

我的模特

namespace AdmissionAnonymousForm.Infrascructure.Services.Core
{
    public interface IBankService
    {
        Task<Bank> Get();
        Task<Bank> Get(Guid id);
        Task<Bank> Post(Bank bank);
        void Update(Guid id, Bank addressIn);
        void Delete(Guid id);
    }
}

Answer 1

Get方法的返回类型应为Task<List<Bank>>

public  Task<List<Bank>> Get()
{
    return _bank.Find(bank => true).ToListAsync();
}