what is the code for edit a website content by admin page

Question

i want to edit/change the content of my website by another web page(admin page). so please guide me that what is the asp/c# code i have to use. i want to add new Images and text to my website but i want it to do with admin page. please guide. <span style="color: red;"><strong>if you have any website with admin control then please forward it to my email: [email protected]</strong></span>