Help in learning C#

[Marivic]

Hi all,

I'm just starting to learn C#. What I do is I read sample code in C# and to test myself if I understand the code, I'm trying to convert the code to VB.Net. I have this particular code that I can't understand. Can somebody out there be kind enough to explain this.

class NumberBox:TextBox  // I know that this is a class inherited from Textbox
{
  public NumberBox()  //  what's the difference between this and the class declaration, what's the counterpart of this in VB.Net?
  {
    this.KeyPress+=new KeyPressEventHandler(NumberBox_KeyPress); // how do you write this in VB?
  } 
}

Thanks very much for any help.

[hellswraith]

public NumberBox() is the constructor for the class. Look up constructors for VB.Net and you will have your answer.
http://www.ondotnet.com/pub/a/dotnet...4/vbooppt2.htm


this.KeyPress+=new KeyPressEventHandler(NumberBox_KeyPress);
That is just subscribing to a keypress event of the object. The KeyPressEventHandler is a delegate, and the NumberBox_KeyPress is the method that will be called when the event fires.
http://www.mvps.org/vbnet/index.html..._ms_events.htm

[Marivic]

Thanks hellswraith!

I finally convert that piece of code into:

 Public Sub New()
        MyBase.New()
        AddHandler Me.KeyPress, AddressOf NumberBox_KeyPress

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

Thanks again.