迭代中的linq问题

Question

我在ASP.NET中使用LINQ并有一个这样的代码:

for (int i = 0; i <= 2; i++)
{
    IPost post = _postRepository.GetById(1);
    txtTest.Text = post.Title; 
    post.Title = "test" + i.ToString();
}

在每次迭代中,我都会跟踪post.Title,但它的值是先前的值而不是数据库中的值:

txtTest.Text:
    i=0 => what is in database
    i=1 => test0
    i=2 => test1

---

我想解释一下我的主要问题:我有一个帖子课:

public class Post
{
    Long Id { get; set; }

    long Author { get; set; }

    string Title { get;  set; }

    string Excerpt { get; set; }

    string Content { get; set; }        

    ICollection<ShareLink> ShareLinks
    {
        get
        {
            IShareLinkRepository _shareLinkRepository = null;
            _shareLinkRepository = ObjectFactory.GetInstance<IShareLinkRepository>();

            ICollection<ShareLink> shareLInks =_shareLinkRepository.Get();

            foreach (IShareLink shareLink in shareLInks)
            {
                System.Web.HttpContext context = System.Web.HttpContext.Current;
                string newUrl = context.Request.Url.Scheme +
                    "://" + context.Request.Url.Authority +
                    context.Request.ApplicationPath.TrimEnd('/') + "/posts.aspx?p="
                    + this.Id;

                url.Replace("{title}", this.Tilte).Replace("{url}", newUrl);

            }

            return shareLInks;
        }
    }
}

和ShareLink是:

public class ShareLink     
{
    long Id { get; set; }

    string Url { get; set; }

    string Name { get; set; }

    string Image { get; set; }
}

ShareLink.url的值如下所示:http://digg.com/submit？phase = 2&url = {url}&title = {title}在帖子类的ShareLinks字段中,ShareLinks.url的所有值都是第一个发布ShareLinks值

Answer 1

更改IPost post = _postRepository.GetById(1)

至

IPost post = _postRepository.GetById(1)

(根据以下评论添加)

IPost post = _postRepository.GetById(i+1);