Unavailable class. VS2010
I really don't know what the problem is with VS2010. I created a class, and when I try to instantiate the class, I get the error: Error xxx not available due to security level.
Example:
public class Person
{
Person(string name, int age)
{
this.name = name;
this.age = age;
}
public string name;
public int age;
}
class Program
{
static void Main(string[] args)
{
Person ps = new Person("Jack", 19);
}
}
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2 answers
You need to create your constructor public
:
public Person(string name, int age)
{
...
Why aren't they public
default constructors, you might ask ? What point of the class you cannot create via your constructor? Well this can be useful if you want to create a class that can only be instantiated using factory methods, eg.
public class Person
{
public static Person makePerson(string name, int age)
{
...
A factory method that is a member of a class Person
may not access a constructor public
.
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