BLToolkit – 是否能够进行异步数据库操作？

2019年7月21日 183次阅读

我想通过慢速数据库读取来避免阻塞执行线程,我非常喜欢BLToolkit DataAccessor

public abstract class PersonAccessor : DataAccessor
{
    [SqlText(@"SELECT * FROM Person WHERE FirstName = @firstName")]
    public abstract List<Person> GetPersonListByFirstName(string @firstName);

    [SprocName("sp_GetPersonListByLastName")]
    public abstract List<Person> GetPersonListByLastName(string @lastName);
}

是否可以对BLToolkit DataAccessor使用异步操作？

希望它能够返回任务< T>我可以使用C#5.0中的等待

BR.

最佳答案 您可以组合提供Begin End模式的
Async属性和这样的
turn it into Task(未测试)：

public abstract class PersonAccessor : DataAccessor
{
    [SqlText(@"SELECT * FROM Person WHERE FirstName = @firstName")]
    public abstract List<Person> GetPersonListByFirstName(string @firstName);

    [Async]
    public abstract IAsyncResult BeginGetPersonListByFirstName(string @firstName, AsyncCallback callback, object state);

    [Async]
    public abstract List<Person> EndGetPersonListByFirstName(IAsyncResult asyncResult);

    public Task<List<Person>> GetPersonListByFirstNameAsync(string @firstName)
    {
        return Task.Factory.FromAsync(
            BeginGetPersonListByFirstName(),
            EndGetPersonListByFirstName,
            @firstName, 
            null);
    }
}

public class TestClass 
{
    public List<Person> AwaitTest(PersonAccessor personAccessor, string @firstName)
    {
        return await personAccessor.GetPersonListByFirstNameAsync(@firstName);
    }
}
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