[Solved] Using a public void from one form to another

by


You could make use of FormClosed/FormClosing event of the second form. When the second form closes, the event handler in the first form will be invoked and you could call the public method there.

Example: 

public partial class FirstForm : Form
{
    public void OpenSecondForm()
    {
        SecondForm form = new SecondForm();
        form.FormClosed += SecondForm_FormClosed;

        form.Show();
    }

    private void SecondForm_FormClosed(object sender, FormClosedEventArgs e)
    {
        this.PopulateGridView();
    }

    public void PopulateGridView()
    {
    }
}

solved Using a public void from one form to another