How do you make a parameter optional in C#?

By Params Keyword : You can implement optional parameters by using the params keyword. It allows you to pass any variable number of parameters to a method. But you can use the params keyword for only one parameter and that parameter is the last parameter of the method.

By Params Keyword : You can implement optional parameters by using the params keyword. It allows you to pass any variable number of parameters to a method. But you can use the params keyword for only one parameter and that parameter is the last parameter of the method.

However, you can greatly simplify the call to AutoFormat by using named and optional arguments , introduced in C# 4.0. Named and optional arguments enable you to omit the argument for an optional parameter if you don’t want to change the parameter’s default value.

However, you can greatly simplify the call to AutoFormat by using named and optional arguments , introduced in C# 4.0. Named and optional arguments enable you to omit the argument for an optional parameter if you don’t want to change the parameter’s default value.