So something like:

public static class StaticClass {}

public class InstanceClass
{
    static StaticClass StaticProperty {get;set;}

    public InstanceClass()
    {
        InstanceClass.StaticProperty = StaticClass;
    }
}

I thought one could do this but the compiler returns these errors:

static types cannot be used as parameters

static types cannot be used as return types

EDIT: I know that this doesn't work, but why? I imagine StaticClass is stored somewhere in memory, so other variables could be allowed to refer to it at the same memory, right?

EDIT2: One of the use cases would be something like this:

Say you have 5 different static classes you have collected with no source code, and they do generic stuff, so you want to have convenient access to them through a single static class. You could do it like:

public static class GenericStuff
{
    public LinearAlgebra LinearAlgebra {get;set;}
    public StringUtilities String {get;set;}
    public GeometryOps Geometry {get;set;}
}

And use it like:

GenericStuff.LinearAlgebra.GetAngleBetweenVectors(v0, v1);

Some other use cases you could think of.

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