About MVC view and DataBinding from SQL

Question

hello,

I have view with textbox and I have given @Value to that textbox as 15 by default. Please refer textbox below : 

 

@Html.TextBoxFor(Model => Model.quantity, new { @id = "txtquantity", @type = "number", @class = "form-control", @Value = "15" }) 

 

I am able to save that or any other value in SQL DB.

 

But when I edit that textbox, it should bind the value which is saved in a database, but still it binds that by default "15" value, even in db the value is saved different.

 

Anything can be done to make this work?

Thank you in advance!