Question

I have a form where I have a list with objects stored. I then have a dialog in which I wish to access this list and loop through its content.

The main form:

namespace personregister
{
public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }      

    public List<person> personStorage = new List<person>();

In the dialogue I want to do something like this:

namespace personregister
{
public partial class AddPersonDialogue : Form
{
    public AddPersondialogue()
    {
        InitializeComponent();            
        foreach (person p in personStorage)
        {
          //do stuff
        }
    }

problem is that I cannot access personStorage which I created in the other form. How do I access that list in the dialogue window?

Answer 1

Add a method to do the dialoge and call after it is constructed.

public partial class AddPersonDialogue : Form
{
    public AddPersonDialogue()
    {
        InitializeComponent();            

    }

    public void SetUpPeople(List<person> personStorage)
    {
        foreach (person p in personStorage)
        {
          //do stuff
        }
    }
}

 public Form1()
 {
    {
        InitializeComponent();
    }      

    public List<person> personStorage = new List<person>();

    public void ShowForm()
    {
        var dialogue = new AddPersonDialogue();

        dialogue.SetUpPeople(personStorage);

        dialogue.Show();
    }
}

You could also do it via the constructor.

public partial class AddPersonDialogue : Form
{
    public AddPersonDialogue(List<person> personStorage)
    {
        InitializeComponent();
        foreach (person p in personStorage)
        {
          //do stuff
        }       

    }
}