CODEWITHSUNDEEP
c#savesettings
BlueRay101
BlueRay101

Reputation: 1487

C# - Using Settings

I've recently written this short application in C#:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Checker
{
    class Program
    {
        static void Main(string[] args)
        {
            Properties.Settings.Default.Save();
            Program re = new Program();
            re.next();
        }
        public void next()
        {
            Console.WriteLine("Have you already entered name?");
            int ch = int.Parse(Console.ReadLine());
            if (ch == 0)
            {
               Console.WriteLine("What is your name?");
               String name = Console.ReadLine();
               Console.WriteLine("Thank you!");
               Console.ReadKey();
            }
            Console.WriteLine("Your name is " + name);
        }
    }
}

Now, I've created a settings file, and created a "name" variable there, with the "String" type.

The scope of it is "User".

So I want it to load the "name" variable with the properties line, but I can't even compile the program because of this error:

Error   1   The name 'name' does not exist in the current context

How can I solve it?

Upvotes: 0

Views: 261

Answers (3)

Michael Mims
Michael Mims

Reputation: 250

Your intentions are a bit unclear, but to me it seems as though you are trying to have the application display the name of the user if it has already been saved or ask for it if it hasn't. If that is the case, something like this should work:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Checker
{
    class Program
    {
        static void Main(string[] args)
        {
            Program re = new Program();
            re.next();
            Properties.Settings.Default.Save();
        }
        public void next()
        {
            String name = Settings.Default.name;
            if (String.IsNullOrEmpty(name))
            {
                Console.WriteLine("What is your name?");
                name = Console.ReadLine();
                Settings.Default.name = name;
                Console.WriteLine("Thank you!");
                Console.ReadKey();
            }
            else
            {                    
                Console.WriteLine("Your name is " + name);
            }
        }
    }
}

In your OP, your settings were not being saved before the program exited nor were you setting the name property.

Upvotes: 0

pineconesundae
pineconesundae

Reputation: 353

The answer to your problem becomes a little more apparent when you indent:

String name;
if (ch == 0)
{
    Console.WriteLine("What is your name?");
    name = Console.ReadLine();
    Console.WriteLine("Thank you!");
    Console.ReadKey();
}
else
{
    name = Settings.Default.name;
}
Console.WriteLine("Your name is " + name);

Now you can see that you defined a String called name inside the if-block, thus using it in the Console.WriteLine outside the if-block is out of scope! Move that last Console.WriteLine inside the if-block to solve the scoping issue.

Edit: Based on your comment, your code needs a bit more logic to attain what you're trying to do. I updated my snippet above to accomplish what I think you're trying to do.

Upvotes: 4

SLaks
SLaks

Reputation: 888185

You declared that variable inside the if block.
As the compiler is trying to tell you, it doesn't exist outside that block.

If you want to use your Settings class, write Settings.Default.Name.

Upvotes: 0

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