There is no point in providing a default value for a parameter if callers are required to provide a value for it anyway. Thus,
[DefaultParameterValue] should always be used in conjunction with [Optional].
Noncompliant code example
public void MyMethod([DefaultParameterValue(5)] int j) //Noncompliant, useless
{
Console.WriteLine(j);
}
Compliant solution
public void MyMethod(int j = 5)
{
Console.WriteLine(j);
}
or
public void MyMethod([DefaultParameterValue(5)][Optional] int j)
{
Console.WriteLine(j);
}
