need help with CreateObject equivalent in C#

[benmartin101]

I've tried CreateObject and it does not work in C#. So i tried:

Type t = Type.GetTypeFromProgID("MyObject.Class1");
Object o = Activator.CreateInstance(t);

This works to the point where it compiles and runs. However, when I try to use one of MyObject's methods, it gives me an error:

'object' does not contain a definition for 'MyFunction'

Any ideas on how to do this correctly?

[DeadEyes]

This is off the top of my head and I'm not at a machine where I can test it but:

Create an Interface which your class implements
then instead of using an object use the interface

Type t = Type.GetTypeFromProgID("MyObject.Class1");
interface1 o = (interface1)Activator.CreateInstance(t);

[benmartin101]

thanks

[benmartin101]

By the way, do you know how to SET and GET public properties of the "MyObject"?

[DeadEyes]

By the way, do you know how to SET and GET public properties of the "MyObject"?

I'm not sure what you mean? If you use an interface you'll know what methods are available. To enumerate all the methods you can use the MethodInfo,MemberInfo and ParamaterInfo classes in conjunction with the Type class which has a number of get methods GetMethod, get Memeber etc.

hmm, how many times can I fit the word "method" into a paragraph.

[benmartin101]

No, i mean like...my class has a name property. In vb, the code would be:

dim obj as new MyObject
obj.name = "john"

how do I do that in c#?

[drattansingh]

Do it just like the vb (obj.property) , with the dot property. If it's not working, then that property is declared as private, either declare the property as public or create a getmethod for the private property so (obj.getProperty()).

[kaihirst]

Hi,

best way in c# to do this is to overload it, then assign the contents upon the object instantiation

class clsClass
{

private string me;
private stirng you;

public clsClass(string me, string you)
{

this.me = me;
this.you = you;
}

public virtual void DecalreValues()
{
// define any mothodology here such as declaring obvjects blah blah
}
}

public static void Main()

{

clsClass youandme = new clsClass("kaihirst", "benmartin101")

or you could do it like ...

youandme.me = "kaihirst";
youandme.you = "benmartin101";

//decalring a method is still the same throughout, in case you dont know

youandme.DeclareValues()
}

hope this helps.

ta

kai

[benmartin101]

I can't make changes to it. It's a COM dll. I just wanted to know how I would access their properties and functions if I was to do "late binding" instead of "early binding"