how to select a method based on a variable?

[SteveyD]

Not sure if I am explaining this correctly but here goes..

I am working on a .dll that depending on a value determined at startup, will select which method to use next.

At the very beginning of this dll,

private string _Ver = Application.ProductVersion;

Now if _Ver < 2 then use

public List<System.Windows.Forms.Form> Startup()
{
//code here
}

If _Ver > 2 then use

public void Startup()
{
//code here
}

Can this be done?
if so, how?

Steve

[hericles]

It can be done, unfortunately I'm not an expert on it so my help is limited. You need to use the .Net reflection class. You can use this to examine a dll or class at runtime and from there call the right method.
I'm sure Google can supply tutorials now that you know what to look for.

I hope that helps,

[SteveyD]

Ok, I missed a small detail in this..

You can't have two instances of the method "Startup" in the same class.

Is there a way to rename the Method itself?

If _Ver > 2
then rename

public void Startup()

to

public List<Form> Startup()

and vice versa?

[Fruit Alchemist]

Hmm i not to sure i get what your trying to do...

You will Create a new method.You will pass the _Ver to that Method. Inside the method your logic will check the _Ver and call the correct Startup(). But yes you cannot have the same instances of the method twice.

public class Version
    {
       protected string _version;
       public Version()
       {
           _version = Application.ProductVersion;

           if (_version != "")
           {
               AssignStartUp();
           }
       }

       protected void AssignStartUp()
       {
           if (_version == "2")
           {
               StartUp();
           }
           else
           {
               StatupList();
           }
       }

       protected void StartUp()
       {

       }

       protected List<Form> StatupList()
       {

           return new List<Form>();
       }
    }

[SteveyD]

Sorry for the late reply.

I have not had a chance to test this yet, but I am still wondering about renaming the Method based on the results of _version? Can this be done?

[thines01]

If you could give one of those a different parameter list, it would work easily -- even if the parameter is bogus.