Question

I read a data from excel and determine which event I am going to execute.

event are both class created by myself (login and logout)

if the value I read = 1 , execute login

if the value I read = 2 , execute logout

I use switch but my boss say I have to use something like hashmap in Java.

In Java, I can write the code like:

table.Add( “one”, login.class );

so how can I add class into hashtable using c#?

and how can I read the value and call the class method in hashtable?

Answer 1

The following code allows you to implement a DoSomething method in your objects, callable from a Dictionary index:

public interface ICallable
{
    void Execute();
}

public class Login : ICallable
{
    // Implement ICallable.Execute method
    public void Execute()
    {
        // Do something related to Login.
    }
}

public class Logout : ICallable
{
    // Implement ICallable.Execute method
    public void Execute()
    {
        // Do something related to Logout
    }
}

public class AD
{
    Dictionary<string, ICallable> Actions = new Dictionary<int, ICallable>
    {
        { "Login", new Login() }
        { "Logout", new Logout() }
    }

    public void Do(string command)
    {
        Actions[command].Execute();
    }
}

Example Usage

AD.Do("Login"); // Calls `Execute()` method in `Login` instance.