I have interface IResourcePolicy containing the property Version. I have to implement this property which contain value, the code written in other pages:
IResourcePolicy irp(instantiated interface)
irp.WrmVersion = "10.4";
How can I implement property version?
public interface IResourcePolicy
{
string Version
{
get;
set;
}
}
In the interface, you specify the property:
public interface IResourcePolicy
{
string Version { get; set; }
}
In the implementing class, you need to implement it:
public class ResourcePolicy : IResourcePolicy
{
public string Version { get; set; }
}
This looks similar, but it is something completely different. In the interface, there is no code. You just specify that there is a property with a getter and a setter, whatever they will do.
In the class, you actually implement them. The shortest way to do this is using this { get; set; } syntax. The compiler will create a field and generate the getter and setter implementation for it.
Version is public in the class? Ahh, I see my problem: if you implement the Interface explicitly (e.g. IResourcePolicy.Version, you can't define if it's public.
You mean like this?
class MyResourcePolicy : IResourcePolicy {
private string version;
public string Version {
get {
return this.version;
}
set {
this.version = value;
}
}
}
Interfaces can not contain any implementation (including default values). You need to switch to abstract class.
The simple example of using a property in an interface:
using System;
interface IName
{
string Name { get; set; }
}
class Employee : IName
{
public string Name { get; set; }
}
class Company : IName
{
private string _company { get; set; }
public string Name
{
get
{
return _company;
}
set
{
_company = value;
}
}
}
class Client
{
static void Main(string[] args)
{
IName e = new Employee();
e.Name = "Tim Bridges";
IName c = new Company();
c.Name = "Inforsoft";
Console.WriteLine("{0} from {1}.", e.Name, c.Name);
Console.ReadKey();
}
}
/*output:
Tim Bridges from Inforsoft.
*/
J.Random Coder's answer and initialize version field.
private string version = "10.4';
You should use abstract class to initialize a property. You can't inititalize in Inteface .
