How to use base constructor data to another constructor in the same class?

Question

while trying to call base constructor it throw error like "object doesn't contain constructor that take one argument"

    public string FirstName { get;private set; }
    public string LastName { get;private set; }

    public Employee(string firstName)
    {
        FirstName = firstName;
    }

    public Employee(string firstName,string lastName):base(firstName)//error
    {
        LastName = lastName;
    }

    public string SayHello()
    {
        return FirstName + " " + LastName;
    }

thanks

Answer 1

You'd probably want to call current class constructor, not a base class constructor:

public Employee(string firstName, string lastName): this(firstName) // this, not base
{
    LastName = lastName;
}