Question

I have constructor

Foo(IColor c , int someNumber)

and I know the some number only during the run time, and I want to call this constructor during the resolving and to pass someNumber value and the IColor to be resolved autocratically.

Something like this:

container.Resolve<IFoo>(someNumber);

Is it possible to be done ?

Answer 1

Yes, pass the constructor arguments in an instance of an anonymous type; the property names must match the constructor parameter names:

IColor desiredColor = //whatever
int desiredNumber = //whatever else
IFoo foo = container.Resolve<IFoo>(new { c = desiredColor, somenumber = desiredArgumentValue });

If you are using an older version of C# that does not support anonymous types (or even if you’re not), you can do the same with a dictionary:

IColor desiredColor = //whatever
int desiredNumber = //whatever
Dictionary<string, object> arguments = new Dictionary<string, object>();
arguments.Add("c", desiredColor);
arguments.Add("somenumber", desiredNumber);
IFoo foo = container.Resolve<IFoo>(arguments);