MainForm, Usercontrol and a Class...I´m a Newbie

Hello,

I really don’t know how to make it. But let me axplain:

I have a MainForm, a UserControl and a Class. In the MainForm I will create an Objekt from my Class. But then I’m not able to access this Object ! My Class will create a Connection to a DB ,makes SQL statementsand and can close the connection. I will use this Class everywhere but how will I do this I’ve learned Delphi before and there it was possibel to use an Object that was created in Form1 in Form2 by this code:

form1.MyClass.Connect(path);

How will I do something like this in c# Or will I have to Destroy my Object in MainForm and Create a new one in my UserControl

Hope you can get me some help, please

With kind regards

twickl

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MainForm, Usercontrol and a Class...I´m a Newbie

Mary Chipman
Delphi is cool...but I think C# is also really cool. That’s the reason why I want to learn it. but I’ll never give up Delphi! :)

So, I added in my Class the following lines:

public sealed class Singleton

{

private static readonly Singleton instance = new Singleton();

private Singleton() { }

public static Singleton Instance

{

get

{

return instance;

}

}

}

And in my MainForm I create the object

DBClass MyDBClass = new DBClass();

But how can I now access this object from my UserControl !

twickl
R. Dobson
Delphi Rox!!! doesn't it
Radim Hampel
Ohhhh.....I to dumb to read! The Example in the msdn is a class. So I have to make my class looking like the example, or
Santiago88

its the equivalent of a global variable.

all objects in the scope of the class can refer to it via Singleton.Instance.

you need to get these books. . . yesterday:

Design Patterns: Elements of Reusable Object-Oriented Software

Refactoring: Improving the Design of Existing Code
Mark Lowenstein

you had to make MyClass either a public property or a public field (ill-advised) in delphi, didn't you

Got to do the same in C#.

You might want to take a look implementing a singleton pattern
MainForm, Usercontrol and a Class...I´m a Newbie

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