prevent winform resized in C#

It is very easy to prevent the form to be resized in the winform application of C# .

Firstly, we should set the 'MaximumSize' and 'MinimumSize' properties to the same dimensions as the Size property. Then we can set:

form.MaximizeBox = false;
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;

The FormBorderStyle property can be changed into others according to what appearance we want it to display.