How I can use constructors in C# like this:
public Point2D(double x, double y)
{
// ... Contracts ...
X = x;
Y = y;
}
public Point2D(Point2D point)
{
if (point == null)
ArgumentNullException("point");
Contract.EndContractsBlock();
this(point.X, point.Y);
}
I need it to not copy code from another constructor...
This question is related to
c#
constructor
constructor-overloading
Maybe your class isn't quite complete. Personally, I use a private init() function with all of my overloaded constructors.
class Point2D {
double X, Y;
public Point2D(double x, double y) {
init(x, y);
}
public Point2D(Point2D point) {
if (point == null)
throw new ArgumentNullException("point");
init(point.X, point.Y);
}
void init(double x, double y) {
// ... Contracts ...
X = x;
Y = y;
}
}
public Point2D(Point2D point) : this(point.X, point.Y) { }
Source: Stackoverflow.com