how to prevent none state form from being maximized in c#

Question

i have created a form and set its FormBorderStyle property to none. when i press Windows + UP form will be Maximized. how

Answer 1

// Define the border style of the form to a dialog box.
form1.FormBorderStyle = FormBorderStyle.FixedDialog;

// Set the MaximizeBox to false to remove the maximize box.
form1.MaximizeBox = false;

// Set the MinimizeBox to false to remove the minimize box.
form1.MinimizeBox = false;

Credit to How do I disable form resizing for users?