2 D Array?

Array class like ArrayList is a great class because we no need to define the size of array and it will automatic adjust, but how about if I want to use 2D array? can I still use class like ArrayList? how to do?

I would try creating a class and use the two indexes as parameters in a default Item property.

 

ie:

 

public class WidgetArray

 

private myWidgets(iCol*iRow) as widget

inherits ArrayList 'override the methods you wish to use

public default property Items (Byval x as Integer, ByVal y as Integer) as Widget

 

get

return mywidgets(x,y)

end get

 

set (byval value as widget)

mywidgets(x,y) = value

end set

 

 

'override add, remove and whatever else you need

In this case I have to DIM every time I add a single record in ArrayList?

there is almost never a need to do that

 

just Dim it once... and then make new objects like so...

 

Dim myThing as Object

Dim myArray as ArrayList

mything = new object(parameters)

 

myArray.Add(mything)

 

mything = new object(paramenters)

 

(in reality you'd probably use a Sub and use the parameters from that Sub to instantiate your new object, that way you'd only have one statement..... 'x = new x(a,b,c setting abc when you call the sub)

(obviously this is just a sample, so your needs will vary, but it's a shot)

 

always tryin to help