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何时从属性getter或setter中抛出异常是否合适？什么时候不合适？为什么？关于这个主题的外部文件的链接将是有帮助的...谷歌出乎意料地少了.

var result =
    (from bd in context.tblBasicDetails
     from pd in context.tblPersonalDetails.Where(x => x.UserId == bd.UserId).DefaultIfEmpty()
     from opd in context.tblOtherPersonalDetails.Where(x => x.UserId == bd.UserId).DefaultIfEmpty()
     select new clsProfileDate()
     {
         DOB = pd.DOB
     });

foreach (clsProfileDate prod in result)
{
    prod.dtDOB = !string.IsNullOrEmpty(prod.DOB) ? Convert.ToDateTime(prod.DOB) : DateTime.Today;
    int now = int.Parse(DateTime.Today.ToString("yyyyMMdd"));
    int dob = int.Parse(prod.dtDOB.ToString("yyyyMMdd"));
    string dif = (now - dob).ToString();
    string age = "0";
    if (dif.Length > 4)
    age = dif.Substring(0, dif.Length - 4);
    prod.Age = Convert.ToInt32(age);
}

GetFinalResult(result);

protected void GetFinalResult(IQueryable<clsProfileDate> …