C# .NET MVC 5 Advanced ajaxform with 2 models : I'm looking for any ideas/ tutorials or maybe the name of that metod.

I'd like to create something like this on the photo.

**Let's me explain:**

Technology:

 -  C# .Net MVC5

We have 2 tables. 

 - Order (Order_Id, OrderName),
 - Item (Item_Id, ItemName),

Functionalities:

 - user is able to add item to **Item table** by that form.
 - user after button had been clicked is able to choose item from **Item table** and add it to **Order table**. 
 - everything should be related

[![img_form][1]][1]


  [1]: https://i.stack.imgur.com/2cyoK.jpg

P.S: What is that when sb is writing for example "Door" in textbox an under the textbox appears some data from DB which we are able to click and then the form is filled with that data?