Naming a variable with another variable

This is a discussion on Naming a variable with another variable within the C# Programming forums, part of the General Programming Boards category; I'm trying to create a loop that will create some variable as it goes through and then add the variables ...

  1. #1
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    Naming a variable with another variable

    I'm trying to create a loop that will create some variable as it goes through and then add the variables to an array. I want to name the variables created based on their position in the array, something like this;

    Code:
    for (int i = 0; i < 5; i++)
               {
                   string name = i.ToString();
    
                   Nmode name;
    
                   wallarray[i] = name = new Nmode(Content);
    
                   name.NLoad
    
               }
    now obviosuly this isn't working since name is used more than once, but is there a work around that someone could suggest? even a way of ranbomly generateing some names may work, but I'm not sure as the program will need to be able to call these names later. I wont need to know them, but the program will.

    Thanks in advance for any help

    ES

  2. #2
    C++ Witch laserlight's Avatar
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    Why can you not use another array? In the absence of a variable variables language feature (which I do not think C# has), an array or some kind of map/dictionary would be used. (Then even if variable variables are available, those other approaches tend to be better anyway.)
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  3. #3
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    Do you mean a second array that fills up with numbers as the loop progresses and then uses those numbers to name the variables? Like this

    Code:
                string[] arraynames = new string[2]; //hard coded length for now
    
               for (int i = 0; i < 5; i++)
               {
    
                   arraynames[0] = i.ToString();
    
                   string name = i.ToString();
    
                   Nmode = arraynames[0];
    
                   wallarray[i] = arraynames[0] = new Nmode(Content);
    
                   arraynames[0].Load();
    
               }

    that does sound like it would work better, but I'm unsure as to how I would use the contents of the second array to name the Nmodes.

  4. #4
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    Use a Dictionary<Tkey, TValue>. Use the name as the key and whatever class you are creating as the value.

    It is possible to create dynamic names by using the Emit class or the Microsoft.Csharp classes, but that's more work than you probably want to do.

  5. #5
    Super Moderator VirtualAce's Avatar
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    And I would also argue that just b/c it is possible does not mean it is recommended,

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