C# Array TrueForAll

Description

Array TrueForAll determines whether every element in the array matches the conditions defined by the specified predicate.

Syntax

Array.TrueForAll<T> has the following syntax.

public static bool TrueForAll<T>(
  T[] array,
  Predicate<T> match
)

Parameters

Array.TrueForAll<T> has the following parameters.

• T - The type of the elements of the array.
• array - The one-dimensional, zero-based Array to check against the conditions
• match - The Predicate that defines the conditions to check against the elements.

Returns

Array.TrueForAll<T> method returns true if every element in array matches the conditions defined by the specified predicate; otherwise, false. If there are no elements in the array, the return value is true.

Example

//  w  w w .j  a  va 2s.  co m
using System;

public class MainClass
{
    public static void Main()
    {
        string[] myValues ={
            "1234", "19", "3456",
            "3456", "200","5678",
            "6543", "9876"
        };

        Predicate<string> myPredicate = LenCheck;
        Console.WriteLine(Array.TrueForAll(myValues, myPredicate));


    }
    private static bool LenCheck(String s)
    {
        if (s.Length > 3)
        {
            return true;
        }
        else
        {
            return false;
        }
    }
}

The code above generates the following result.