我有 2 个对象列表。一个有价值观,另一个有名字和价值观。我想在另一个列表中查找值并将结果写入 pref.Name。我知道我可以用 foreach 做到这一点,但我认为在 LINQ 中有一个很好的方法。想法?
public class Preference
{
public string Category { get; set; }
public string Name { get; set; }
public string ItemValue { get; set; }
public int SortOrder { get; set; }
}
public class SAPReadOnlyItem
{
public string Category { get; set; }
public string Name { get; set; }
public string ItemValue { get; set; }
}
List<Preference> preferences = getExistingUserPreferences(UserID, ddlCategory.SelectedValue); //this list is just keys
List<SAPReadOnlyItem> sapReadOnlyItems = getSAPReadOnlyItems(ddlCategory.SelectedValue); //this list is names and keys
//i want to look up the name from sapReadOnly using the ID from preferences and write it into preferences[n].Name
//this works, but I want to write it into preferences[n].Name
var foobar = (from sap in sapReadOnlyItems
join pref in preferences
on sap.ItemValue equals pref.ItemValue
select new { asdf = sap.Name }).FirstOrDefault(); //instead of "select new" I want to write it into preferences[n].Name