c# call function with optional parameters code example

Example 1: optional arguments c#

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

Example 2: optional parameter get request c#

public string GetFindBooks(string author="", string title="", string isbn="", string  somethingelse="", DateTime? date= null) 
{
    // ...
}