How to do a form as fullscreen in c# windows application

Question

hi when i run my form should bein maximize mode, with taskbar everything is noormal. when i start to run my form should be in fullscreen. how to do i wrote something like private void Form1_Load(object sender, EventArgs e) { this.TopMost = true; this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None; this.WindowState = FormWindowState.Maximized; } but its not working fine. i am getting problems iam not unable to see any close mark,min,max symbols mysystem is going to hang.not working any keys anyhing not working. how to solve this anybody help me

Rajanikant Hawaldar · Answer

this .TopMost = true ; That line interferes with alt+tab to switch to other application. ("TopMost" means the window stays on top of other windows, unless they are also marked "TopMost".)

S J · Answer

oh yes, its not unsderstood to everyone okay i wont delete next time

Rajanikant Hawaldar · Answer

Hello @S J, Henceforth do not delete your replies, you deleted your replies see and see now below conversion looks incorrect to everyone who search / look for the same issue

Rajanikant Hawaldar · Answer

ok

Rajanikant Hawaldar · Answer

if you keep FormBorderStyle as None then ControlBox will not be visiable

Rajanikant Hawaldar · Answer

yes go ahead only if its related to this task otherwise you have to post new thread

S J · Answer

yes fine working. thanku

Rajanikant Hawaldar · Answer

Then change form border style to FixedSingle

Rajanikant Hawaldar · Answer

Are using .Net Framework or .Net Core?

Rajanikant Hawaldar · Answer

I am not facing any issues with your code. When you set FormBorderStyle as System.Windows.Forms.FormBorderStyle.None ControlBox will not be visible because its located on Border area. If you want to use FormBorderStyle as None then you have implement shortcut key in Form Keydown event to close form or add button to close form. Add one button then attach click event write code as this.Close(); after launch app click on button and confirm first app is really hanged on not, Add textbox and try to edit.