使用两种KeyDown方法不起作用来最大化/最小化表单

Question

I'm attempting to get a WPF form to maximize or minimize when "enter" is pressed. However,when debugging, it doesn't work.
I can write this so that it can minimize but not maximize, but not be able to do both once one action is performed.
If someone could push me in the right direction, it would be much appreciated.
I'm currently using "Enter" as a placeholder for a combination of two keys that I haven't decided yet. May be annoying for some, I know, but it works for me at the moment.
Also, I'm attempting to make a general overlay program that can run in the background and can pop up when the key combination is pressed.

private void MainWindow_KeyDown(object sender, KeyEventArgs e)
{
    if (this.WindowState == WindowState.Minimized)
    {
        if (e.Key == Key.Enter)
        {
            this.WindowState = WindowState.Maximized;
        }
    }
}
private void MainWindow_KeyDown2(object sender, KeyEventArgs e)
{
    if (this.WindowState == WindowState.Maximized)
    {
         if (e.Key == Key.Enter)
         {
             this.WindowState = WindowState.Minimized;
         } 
    }
}

Answer 1

Try it like this

private void MainWindow_KeyDown(object sender, KeyEventArgs e)
{        
    if (e.Key == Key.Enter)
    {
         if (this.WindowState == WindowState.Minimized)
         {
             this.WindowState = WindowState.Maximized;
         }
         else
         {
             this.WindowState = WindowState.Minimized;
         }
    }
}

Answer 2

Once minimized, the application will not raise or respond events such as KeyDown.

However, this works fine when it's in a normal or maximized view state:

private void Form1_KeyUp(object sender, KeyEventArgs e)
    {
        if (e.Key == Key.Enter)
        {
            if (this.WindowState == WindowState.Normal)
            {
                this.WindowState = WindowState.Maximized;
            }
            else
            {
                this.WindowState = WindowState.Normal;
            }
        }
    }