asp.net mvc 4 - Add/get value from Database MVC4 C# -

i'm creating feature allows user add amount of money 'swiss bank'. balance of swiss bank stored in db (idand balance) each user. i'm stuck on how display current balance of user , how add or witdraw amount of money. i'm new on c#and mvc4 appreciated (just push in right direction awesome).

controller:

using system; using system.collections.generic; using system.data; using system.data.entity; using system.linq; using system.web; using system.web.mvc; using fivegangs.models;  namespace fivegangs.controllers { public class bankcontroller : controller {     private fgentities db = new fgentities();     //     // get: /swissbank/      [httpget]     public actionresult index()     {         var gangster =             db.usergangster.firstordefault(g => g.userprofile.username == user.identity.name && g.health > 0);     }      public actionresult index() {         return view(db.swissbank);     }  } } 

model:

using system; using system.collections.generic; using system.linq; using system.web;  namespace fivegangs.models { public partial class swissbank {     public int id { get; set; }     public string balance { get; set; }  }  } 

view:

    @using fivegangs.models     @model system.data.entity.dbset<swissbank>      @{     viewbag.title = "bank";     }  <h2>bank</h2>  <form>   <fieldset>     <legend>swiss bank</legend>       <label>balance: @string.format("{0:c0}", @model.balance)</label>       <span class="add-on">$</span>       <input type="text" placeholder="amount...">       <span class="help-block">withdrawing swiss bank cost 25% of amount of cash withdrawn!</span>      <button class="btn" type="button">deposit</button>   <button class="btn" type="button">withdraw</button>   </fieldset> </form> 

step 1: create action method create.

public actionresult create() {     return view(); } 

step 2: add view same name

step 3: add action method receive post data , save

[httppost] public actionresult create(swissbank swisbank) {     if(modelstate.isvalid)     {         db.swisbank.add(swisbank);         db.sacechanges()     }     return view(); } 

read documents:

http://www.asp.net/mvc/tutorials/getting-started-with-ef-using-mvc/implementing-basic-crud-functionality-with-the-entity-framework-in-asp-net-mvc-application

it you.