StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
primarykey
Id
2425698
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2010-03-11T14:29:55.363
FavoriteCount
0
LastActivityDate
2010-03-11T14:29:55.363
LastEditDate
LastEditorUserId
0
OwnerUserId
199157
ParentId
2425571
PostTypeId
2
Score
5
ViewCount
0
LastEditorDisplayName
text
Body
<p>Here's a sample. Hope it clarifies everything:</p> <pre><code>static void MethodRun() { List<Topping> testToppings = new List<Topping> { Topping.Cheese, Topping.Pepperoni, Topping.Sausage }; var firstLetterofToppings = testToppings.Select(top => top.ToString().First()); // returns "C, P, S" var singleToppingPizzas = testToppings.Select(top => new Pizza(top)).ToArray(); // returns "Pizza(Cheese), Pizza(Pepperoni), Pizza(Sausage)" List<Topping> firstPizza = new List<Topping> { Topping.Cheese, Topping.Anchovies }; List<Topping> secondPizza = new List<Topping> { Topping.Sausage, Topping.CanadianBacon, Topping.Pepperoni }; List<Topping> thirdPizza = new List<Topping> { Topping.Ham, Topping.Pepperoni }; List<IEnumerable<Topping>> toppingsPurchaseOrder = new List<IEnumerable<Topping>> { firstPizza, secondPizza, thirdPizza }; var toppingsToOrder = toppingsPurchaseOrder.SelectMany(order => order); //returns "Cheese, Anchovies, Sausage, CanadianBacon, Pepperoni, Ham, Pepperoni" } class Pizza { public List<Topping> Toppings { get; private set; } public Pizza(Topping topping) : this(new List<Topping> { topping }) { } public Pizza(IEnumerable<Topping> toppings) { this.Toppings = new List<Topping>(); this.Toppings.AddRange(toppings); } } enum Topping { Cheese, Pepperoni, Anchovies, Sausage, Ham, CanadianBacon } </code></pre> <p>The key is that Select() can select any type of object. It's true that you can select a property of whatever generic value is assigned to your collection, but you can select any other type of object also. SelectMany() just flattens your list.</p>
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POSelect and select many difference
  singulars
  PostTypePostTypeId
  PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USsidney.andrews
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
  singulars
  PostPostId
  PO
  UserUserId
  This table or related slice is empty.
  VoteTypeVoteTypeId
  VTUpMod
2. VO
  singulars
  PostPostId
  PO
  UserUserId
  This table or related slice is empty.
  VoteTypeVoteTypeId
  VTUpMod
3. VO
  singulars
  PostPostId
  PO
  UserUserId
  This table or related slice is empty.
  VoteTypeVoteTypeId
  VTUpMod
CommentsPostId
1. This table or related slice is empty.

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.