Question

I have two forms.
The first form is the mainForm, this never goes anywhere.
On opening the second form (saveForm), it will display over the top.
When i close this form, I want a certain piece of code in the mainForm to run.
I assume this is the correct way to get this to happen?

The code on saveForm when I close and return to the mainForm:

private void btnSaveDetails_Click(object sender, EventArgs e)
    {
        Delivery d = new Delivery(txtNameBox.Text, txtAddressBox.Text, txtDayBox.Text, txtTimeBox.Text, txtMealBox.Text, txtInstructionsBox.Text, txtStatusBox.Text);
        mainForm.myDeliveries.Add(d);
        this.Close();
    }

Any ideas?

Answer 1

You have to set the DialogResult property of you dialog form. Either explicitly in code or by assingning the dialog result to a button on your form.

private void btnSaveDetails_Click(object sender, EventArgs e)
{
    Delivery d = new Delivery(
        txtNameBox.Text, txtAddressBox.Text, txtDayBox.Text,  
        txtTimeBox.Text, txtMealBox.Text, txtInstructionsBox.Text, 
        txtStatusBox.Text
    );
    mainForm.myDeliveries.Add(d);
    this.DialogResult = DialogResults.OK;
}

No need to call Close() setting this.DialogResult does that for you if you called the dialog using ShowDialog().

On calling the form you have to do the following:

var frm = new MyForm();
if (frm.ShowDialog() == DialogResults.OK) {
     // do what you want to do on success.
}