Check inside method whether some optional argument was passed

Question

How do I check if an optional argument was passed to a method?

public void ExampleMethod(int required, string optionalstr = \"default string\",
    int optio         


        

Answer 1

you can not check directly but you can check it by default value. for example:

public void ExampleMethod(int required, string optionalstr = "default string",
    int optionalint = 10)
{

    if (optionalint == 10)
       return;
}

or

public void ExampleMethod(int required, string optionalstr = "default string",
    int? optionalint)
{

    if (required.HasValue==false)
       return;
}

Approach 2:

Also you can use override methods:

public void ExampleMethod(int required, string optionalstr = "default string")
{
     //When this method called, means optionalint was NOT passed
}

public void ExampleMethod(int required, string optionalstr = "default string",
    int optionalint)
{
    //When this method called, means optionalint was passed
}