Open visual studio 2015: New Project >select windows application
After create new project Form1 will be shown like below pic.
Select above the form and click F4.Property window should be appearing.
Now form’s Maximize Button goes to disable in the design mode.
After run the application, double click isn’t work. because maximize button go to disable.
If you stop maximizing in run time, use the below line in your event.
(E.x) I am using in button click even.
private void button1_Click(object sender, EventArgs e)
this.MaximizeBox = false;
After run the application begin maximize button is work, if you click the button it should be disabled
Before Click Event
After Click Event