C#•2y ago

list that holds 2 values each

I want to have a way to store a dynamic amount of data, where each entry holds a string and an int. What is the best way to handle this? I'm thinking along the lines of a 2d list, or if that's not possible, maybe just 2 lists where I use code to compare the values imbetween them (values stored at the same index)

30 Replies

ero•2y ago

record DataWithTwoValues(
  string StringValue,
  int IntValue);

List<DataWithTwoValues> _listOfData = new();

record DataWithTwoValues(
  string StringValue,
  int IntValue);

List<DataWithTwoValues> _listOfData = new();

Chris TCCOP•2y ago

record? never seen that before

ero•2y ago

use a class if you want doesn't matter just anything that holds data make it a class that represents that data records are classes with equality comparison built in

Chris TCCOP•2y ago

I only got a single class I can use, so making it as a class is not possible unfortunately

ero•2y ago

make a new one? don't understand

Chris TCCOP•2y ago

because I'm using C# as a scripting language, so everything has to go into a single class if it doesn't go into that class, the entire script breaks

ero•2y ago

bogus

MODiX•2y ago

Ero#1111

REPL Result: Success

List<DataWithTwoValues> listOfData = new()
{
  new("Foo", 42),
  new("Bar", 123)
};

return listOfData;

record DataWithTwoValues(
  string StringValue,
  int IntValue);

List<DataWithTwoValues> listOfData = new()
{
  new("Foo", 42),
  new("Bar", 123)
};

return listOfData;

record DataWithTwoValues(
  string StringValue,
  int IntValue);

Result: List<DataWithTwoValues>

[
  {
    "stringValue": "Foo",
    "intValue": 42
  },
  {
    "stringValue": "Bar",
    "intValue": 123
  }
]

[
  {
    "stringValue": "Foo",
    "intValue": 42
  },
  {
    "stringValue": "Bar",
    "intValue": 123
  }
]

Compile: 574.882ms | Execution: 118.395ms | React with ❌ to remove this embed.

Chris TCCOP•2y ago

can you remove items from the list?

ero•2y ago

sure?

Chris TCCOP•2y ago

sorry I'm self taught and a complete noob when it comes to this stuff hell, I just learned about lists a few months back before that I was using arrays for everything

Unknown User•2y ago

Message Not Public

ero•2y ago

also if you learned about lists "a few months back", i'd expect you to know everything there is to know about them like it's not that difficult the method is even called .Remove()

malkav•2y ago

Why not use a dictionary? Wait, the conversation is much longer than I expected 😅 I might have missed a bit of the discussion

Chris TCCOP•2y ago

ah. I heard of those but didn't look into that, so I'm not sure what they are I tend to learn things as I need them so... yeah this will def cause bad programming habits

malkav•2y ago

Dictionaries are basically key-value pairs You can set them to hold a string as key, and your int as value. So you'll have both at all times new Dictionary<string, int>() { {"myKey", 1} } or the other way around new Dictionary<int, string>() { {1, "myValue" } }

Chris TCCOP•2y ago

that might be what I'm looking for

malkav•2y ago

dude I was the same with learning any language. "I'll get to those when I need them" 🤣 I know it can work

Chris TCCOP•2y ago

uh yeah no my code is disgusting I gave many aneurisms on my other programming project my first time working on "dynamic" UI stuff where the user can create more items and data and containers

malkav•2y ago

If you want to get your "values" all you do is call the dictionary: myDict[1] or myDict["myKey"]

Chris TCCOP•2y ago

the back end... that's useful, I'll take a look

malkav•2y ago

I do try to keep conventions and such, but I learn stuff when I need thenm

Chris TCCOP•2y ago

uh...

Chris TCCOP•2y ago

this is the backend a triple layered list actually, maybe I might wanna future-proof this is there any way to store data according to a single key? when I do SourcePawn, there is a way to assign variables to certain players, meaning each player has their own storage that you can access I'd like to do something similar in C# oh, I think I found something online: Dictionary, with the variable being a list, and the key is the "player" - would that work?

ero•2y ago

locals!

Chris TCCOP•2y ago

no idea what that is

ero•2y ago

yeah you do, you're using multiple in that code

Chris TCCOP•2y ago

say what now

ero•2y ago

var slots = saveData.busGroups[currentBusGroupIndex].bus[currentBusIndex].busTimeslot;

slots.Add(new() { /* */ });
var slot = slots[currentTimeslotIndex];

slot.panel.GetComponent/* ... */;
var script = slot.busTimesManagerScript = /* */;

script.busDepartureTimeslotUpdate += /* */;
script.UpdateTimingNumber(/* */);
// ...

var slots = saveData.busGroups[currentBusGroupIndex].bus[currentBusIndex].busTimeslot;

slots.Add(new() { /* */ });
var slot = slots[currentTimeslotIndex];

slot.panel.GetComponent/* ... */;
var script = slot.busTimesManagerScript = /* */;

script.busDepartureTimeslotUpdate += /* */;
script.UpdateTimingNumber(/* */);
// ...

your names are all pretty bad and you don't follow conventions

Chris TCCOP•2y ago

yeah they are I agree but tbh I can't be bothered to rewrite the entire system, it's a unity app it took me two months to finally get it working and it works so... kinda off-topic tho. I think I figured out how to do what I wanted to dictionary with a list as the variable

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list that holds 2 values each