IList<Item> Collection Class accessing database
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by Mike
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Published on 2010-03-23T14:19:38Z
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2010/03/23
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Hi,
I have a database with Users. Users have Items.
These Items can change actively. How do you access the items in a collection type format? For the user, I fill all the user properties at the time of instantiation. If I load the user's items at the time of the instantiation, and the items change, they will have old data.
I was thinking, maybe I need an ItemCollection class and have that a field/property apart of the user class, that way to traverse all the user's items I could use a foreach loop.
So, my question is, what is the best practice/best way of accessing the items from a database using some sort of collection? On accessing the particular Item, it needs to get the latest database information, and when the user does do a foreach loop, the latest item information must be available.
I.e. What I'm trying to do
Console.WriteLine(User.Items[3].ID); returns 5.
//this updates the item information and saves it to the database.
User.Items[3].ID = 13;
//Add a new item to the database.
User.Items.Add(new Item { id = 17});
foreach (Item item in User.Items) {
//this would traverse all items in the database.
//not some cached copy at the time of instantiation of the user.
}
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