What is Quantifiers in reference linq to Dataset?

What is Quantifiers in reference linq to Dataset?

- Quantifier Operators return the Boolean value (either True or false) if some or all the elements in a sequence satisfy a condition.
- Mainly two Quantifiers in linq –

1. Any
2. All

- Examples (vb) :
“Any” to determine if any of the words in the array contain the substring.
Public Sub ExampleAny()

Dim words() = {"believe", "relief", "receipt", "field"}

Dim iAfterE = words.Any(Function(w) w.Contains("ei"))

Console.WriteLine("There is a word that contains in the list that contains 'ei': {0}", iAfterE)
End Sub

Result :
- There is a word that contains in the list that contains 'ei': True.
- “All “to return a grouped a list of products only for categories that have all of their products in stock.
Public Sub Quantifier_All_Exam()

Dim products = GetProductList()

Dim productGroups = From p In products _
Group p By p.Category Into Group _
Where (Group.All(Function(p) p.UnitsInStock > 0)) _
Select Category, ProductGroup = Group

ObjectDumper.Write(productGroups, 1)
End Sub
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