Question

Ok, so I have Form1 calling Form2 in a way that allows me to access Form1’s functions from Form2. Code Below…

Form1….

    private void btnShowForm2_Click(object sender, EventArgs e)
    {
        frmForm2 tempDialog = new frmForm2(this);
        tempDialog.ShowDialog();
    }

Form2…

    private frmForm1 _parent;

    public frmForm2(frmForm1 frm1)
    {
        InitializeComponent();
        _parent = frm1;
    }

    private void btnDoFunction_Click(object sender, EventArgs e)
    {
        _parent.DoProcess();
    }

Now I have a new problem. I’m trying to update a status label of Form2, but the function that’s processing the task at hand is in Form1. How can I change the label of Form2 from within the Function of Form1?

Answer 1

You can do so using delegate and event.

1. Make an event in form1 using a delegate
2. On progress in form1’s process trigger the event.
3. put a handler to the form1 event in form2.
4. Extract the progress from that eventargs implemented object in the handler.
5. Show it in the lable in form2