All - Simple

Query

public void Linq70()
{ 
    int[] numbers = { 1, 11, 3, 19, 41, 65, 19 };
  
    bool onlyOdd = numbers.All(n => n % 2 == 1);
  
    Console.WriteLine("The list contains only odd numbers: {0}", onlyOdd);
}

Lambda Expression

public void Linq70()
{
    int[] numbers = { 1, 11, 3, 19, 41, 65, 19 };
 
    bool onlyOdd = numbers.All(n => n % 2 == 1);
 
    Console.WriteLine("The list contains only odd numbers: {0}", onlyOdd);
}

Output

The list contains only odd numbers: True