How to use 1 List in different forms?

Question

I have 9 Forms, in every form i can fill List and i must write content of List to textBox. I tried to make public static List<Basket> sas = new List<Basket>(); in Basket.cs , but It doesn't help.

That how i try to output

public Form1()
    {
        InitializeComponent();
        foreach(Basket e in sas)
        {
            basketBox.Text += e.Name + Environment.NewLine;
        }
    }

I tried to do like here How to make a list of classes publicly accessible? , but it doesn't work. So, I just want to know how to use 1 List in different forms.

Maybe [this Q&A](https://stackoverflow.com/q/38768737/3959259) helps you — Bill Tür stands with Ukraine, Nov 15 '19 at 11:17
`sas` is a static member of the `Basket` class, so in order to access it from outside that class you would need to call it like so: `Basket.sas`, in your `foreach` you're currently trying to access a member of `Form1` called `sas`, which as far as we can tell from the information you have provided does not exist. — IAmJersh, Nov 15 '19 at 11:29
TheHitchenator, God bless you and your family!!! It worked!!! — Roomey, Nov 15 '19 at 11:31

AntDC · Answer 1 · 2019-11-15T11:23:58.117

0

You could have your list in a central place. Creat your own class of Form that takes in the list as a constructor.

Then whenever using one of those forms, pass in the list from the central place in it's constructor.

public CustomForm(List<Basket> theList)
    {
        InitializeComponent();
        foreach(Basket e in theList)
        {
            basketBox.Text += e.Name + Environment.NewLine;
        }
    }

Usage

var frm = new CustomForm(myGlobals.theList);

edited Nov 15 '19 at 11:23

answered Nov 15 '19 at 11:20

AntDC

1,807
14
23

"that takes in the list as a constructor." how to do this? – Roomey Nov 15 '19 at 11:22
Class name and usage don't match – CyberZeus Nov 15 '19 at 11:23

score 0 · Accepted Answer · answered Nov 15 '19 at 11:32

0

I just needed to add Basket before sas in foreach.

public Form1()
    {
        InitializeComponent();
        foreach(Basket e in Basket.sas)
        {
            basketBox.Text += e.Name + Environment.NewLine;
        }
    }

answered Nov 15 '19 at 11:32

Roomey

716
2
9
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score -2 · Answer 3 · answered Nov 15 '19 at 11:31

How about if you create a Session Variable in your first form?

You can do first:

Session["sas"]=List<Basket>;

And then in every form:

foreach(Basket e in (List<Carrito>)Session["sas"]) { basketBox.Text += e.Name + Environment.NewLine; }

If you dont use anymore:

Session.Remove("sas");

How to use 1 List in different forms?

3 Answers3