Variant Public variable in my class

[YvonneTsang]

I was wondering if you are able to create a variant public variable in a class. I have a class that one of the variables can be set to one and only 1 of 4 different types/classes. Am I able to do this? Should I just have the other classes inherit from my main class? What is the easiest way to approach this problem? I am new to C# and it has been ages since I did Java so I am having trouble remembering what to do.

Essentially:

class MainOne
{
public string type;
public variant info;

public MainOne(string typedetails)
{
type = typedetails
if (type = "a&quot
{
info = new a()
}

etc
}


class a
class b
class c
class d


All of these classes will write to a seperate SQL table and I want to keep it easy to work with and only have 1 class write to each table. Thanks in advance for all of your help.

 

[chiph]

C# (and .NET in general) doesn't have the Variant datatype like VB6 & VBA had. Use the Object datatype. But be aware of what's called "Boxing", which is where a value datatype (like structs, integers, floats, etc) get cast into an object, and then back again. It can be a performance hog (but sometimes it's necessary).

Chip H.

 

[Dinobrago]

Couldn't you also do this with an overloaded constructor?

class test
{
public test( int a )
{
m_intA = a;
m_stringAtype = a.GetType().ToString();
}
public test ( float a )
{
m_floatA = a;
m_stringAtype = a.GetType().ToString();
}

public int A ()
{
get {
return m_intA;
}
}
public float A()
{
get {
return m_floatA;
}
}

Then he can either use an object or a set of member variables (m_intA, m_floatA) along with an "AType" variable so he can tell which variable it is from the outside.
Dean
---
goddette@san.rr.com