Struct Constructors
Visual Studio .NET 2003
Struct constructors are similar to class constructors, except for the following differences:
- Structs cannot contain explicit parameterless constructors. Struct members are automatically initialized to their default values.
- A struct cannot have an initializer in the form: base (argument-list).
Example
The following is an example of a constructor using two arguments for the Point struct.
// Structctor1.cs
using System;
public struct Point
{
public int x, y;
// Constructor:
public Point(int x, int y)
{
this.x = x;
this.y = y;
}
// Override the ToString method:
public override string ToString()
{
return(String.Format("({0},{1})", x, y));
}
}
class MainClass
{
static void Main()
{
// Initialize two points:
Point p1 = new Point();
Point p2 = new Point(10,15);
// Display the results using the overriden ToString method:
Console.WriteLine("Point #1 (default initialization): {0}", p1);
Console.WriteLine("Point #2 (explicit initialization): {0}", p2);
}
}
Output
Point #1 (default initialization): (0,0) Point #2 (explicit initialization): (10,15)
For more information on structs, see struct and the Structs Tutorial.
For a complete comparison between structs and classes, see 11.3 Class and struct differences.
