[C#] Generate a Randomized Int Arrray with custom variables

public static int[] GenerateRandomizedIntArray(int size, int MinValue, int MaxValue)
{
    size = Math.Abs(size);
    if (MinValue > MaxValue) //Incase of trolls
    {
        int temp = MinValue;
        MinValue = MaxValue;
        MaxValue = temp;
    }
    int[] output = new int[size];
    Random r = new Random();
    for (int i = 0; i < output.Length; i++)
        output[i] = r.Next(MinValue, MaxValue+1);
    return output;
}