How to show a form again after hiding it?

c#, forms, maximize-window, minimize, winforms

Solution

You could try (on Form1 button click)

Hide();
Form2 form2 = new Form2();        
form2.ShowDialog();
form2 = null;
Show();

or (it should work)

Hide();
using (Form2 form2 = new Form2())       
    form2.ShowDialog();
Show();

Problem

I have two forms. I need to open a second form with a button. When I open form2 I hide form1. However when I try to show form1 again from form2 with a button it doesn't work. My form1 code is: ``` Form2 form2 = new Form2(); form2.ShowDialog(); ``` Inside form2 code: ``` Form1.ActiveForm.ShowDialog(); ``` or ``` Form1.ActiveForm.Show(); ``` or ``` form1.show(); (form1 doesn't exist in the current context) ``` doesn't work. I do not want to open a new form ``` Form1 form1 = new Form1(); form1.ShowDialog(); ``` I want show the form which I hided before. Alternatively I can minimize it to taskbar ``` this.WindowState = FormWindowState.Minimized; ``` and maximize it from form2 again. ``` Form2.ActiveForm.WindowState = FormWindowState.Maximized; ``` however the way I am trying is again doesn't work. What is wrong with these ways?

Original source