Prevent users from resizing the window/form size

Question

User can change form size. I do not find a property of form that do not allow user to change form size.

Answer 1

Change the BorderStyle to be one of the "Fixed" styles and remove the maximize button.

Answer 2

You can change the border style to :

BorderStyle - fixedToolWindow

But you will loose the maximize and minimize buttons, custom buttons will be needed if you require those functionalities.

Answer 3

Change FormBorderStyle to FixedDialog, FixedSingle, or Fixed3D. Also, if you do not want them to maximize the form set Maximize to False.

Answer 4

Just add this 2 lines of C# code for your form (inside InitializeComponent() function):

this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
this.ImeMode = System.Windows.Forms.ImeMode.NoControl;

Tested with Visual Studio 2017 with .NET 4.6.1

Answer 5

From the Form Properties Window set:
1. FormBorderStyle -> FixedSingle.
2. MaximizeBox -> False.