SPListItem updating programmatically

After multiple attempts of opening the site using SPSite class,I could not make it happen.But searching of these topics i learned many tips and idea to resolve my task.
My requirement was having on webpart there I must create the Form to be filled by end user.These will be inserted into SharePoint List.
In Visual webpart I used the below code

 SPSite site = SPContext.Current.Site;
               SPWeb web = site.OpenWeb();
                SPList myList = web.Lists["List OF Employee"];
                SPListItem Item = myList.Items.Add();
                Item["Title"] = TextBox1.Text;
                Item["Name"] = TextBox2.Text;
                Item.Update();