c# - How to make buttons from one form affect a listview in another one?

Question

I want to have buttons in one form, then as I click on them, an item is added to a list in another form.

This is my current code, take in mind that in this code the buttons are in the same form as the listview, and I want to move either to a new one:

    private void button2_Click(object sender, EventArgs e)
    {
        listView1.Items.Add("Panama");
    }

    private void button3_Click(object sender, EventArgs e)
    {
        listView1.Items.Add("Brazil");
    }

    private void button4_Click(object sender, EventArgs e)
    {
        listView1.Items.RemoveAt(0);
    }

How do I do so when the button is clicked, the list in another form gets the item added?

Answer 1

You need to have a reference to the other forms from the form that invokes the action. One way is to expose the ListView as a property on the Form itself and the just reference it via the Form

From Form1

private void button4_Click(object sender, EventArgs e)
    {
        Form2Instance.MyListView.Items.RemoveAt(0);
    }

In Form2 add the following wrapper to expose the original listView

public ListView MyListView{get{return this.ListView1;}}