class sealed Point cannot inerhit

[Hex]

hi all

it's my first message here, i have a problem with class Point
beacause this class is sealed. So i can not derive it

protected l class point3d : Point
{
point3d();

} ;

how can do that in other way ?
i want to use a new struct { int x,y,z } o a new class

thx in advance
claudio

 

[Registered User]

hi all

it's my first message here, i have a problem with class Point
beacause this class is sealed. So i can not derive it

protected l class point3d : Point
{
point3d();

} ;

how can do that in other way ?
i want to use a new struct { int x,y,z } o a new class

The .NET 4 type Point3D may provide a suitable solution.
http://msdn.microsoft.com/en-us/library/system.windows.forms.datavisualization.charting.point3d.aspx

regards
A.G.

 

[Arne Vajhøj]

it's my first message here, i have a problem with class Point
beacause this class is sealed. So i can not derive it

protected l class point3d : Point
{
point3d();

} ;

how can do that in other way ?
i want to use a new struct { int x,y,z } o a new class

Use composition instead of inheritance.

Arne

 

[Hex]

thank you all