Enter Key Event

Question

Hello, I am Kinjal.

I have started to learn about enter key event.

Now I wanna Do in Gridview directly.

Like,

Suppose There are 4 Columns in GridView withOut Connection of Database.

Product, Quantity, Rate, Amount

1) When I press the enter key after getting data focus has to go on next cell.

2) On Column "Amount" I want data of multiplication of "Rate" and "Quantity".

3) When data filled up on Amount Column after that pressing on Enter key and has to generate new row.

 

I want this type of Features in gridview.

 

If Know then please help me to solve.