Workflow Foundation中自定义活动的可选参数

Question

Is there a way to have an optional argument for a custom activity within Workflow Designer in C#, .NET environment. I know that for Required Arguments here is the syntax:

[RequiredArgument]
[Description("The status to query.")]
public InArgument<StatusValues> Status { get; set; }

But I am wondering how do I define an input argument that could be optional?

Thank you for your help.

Answer 1

Actually, the default for all arguments is to be optional. So, without the [RequiredArgument] attribute, your argument is optional without anything else you must do.

(I hope I did not miss your point, as this seems to be so obvious...?)