Auto generated code

Hi Team,

I am working on a custom C# code that someone before me in the organisation has created to do some batch job in CRM. I see a class that has been auto created, its basically all fields and entity in CRM i guess, i am adding a new field in CRM anyway and i am sure i have to update this, but not sure how. I dont want to manually do this. Can i autogenerate this code and update it there and if yes how do i do it . Below is the first few lines of the class.

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a tool.
//     Runtime Version:4.0.30319.42000
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

[assembly: Microsoft.Xrm.Sdk.Client.ProxyTypesAssemblyAttribute()]

namespace solutions
{
	
	
	[System.Runtime.Serialization.DataContractAttribute()]
	[System.CodeDom.Compiler.GeneratedCodeAttribute("CrmSvcUtil", "9.0.0.9154")]
	public enum AccountState
	{
		[System.Runtime.Serialization.EnumMemberAttribute()]
		Active = 0,
		[System.Runtime.Serialization.EnumMemberAttribute()]
		Inactive = 1,
	}
	/// <summary>
	/// Business that represents a customer or potential customer. The company that is billed in business transactions.
	/// </summary>
	[System.Runtime.Serialization.DataContractAttribute()]
	[Microsoft.Xrm.Sdk.Client.EntityLogicalNameAttribute("account")]
	[System.CodeDom.Compiler.GeneratedCodeAttribute("CrmSvcUtil", "9.0.0.9154")]
	public partial class Account : Microsoft.Xrm.Sdk.Entity, System.ComponentModel.INotifyPropertyChanging, System.ComponentModel.INotifyPropertyChanged
	{
		/// <summary>
		/// Default Constructor.
		/// </summary>
		public Account() : 
				base(EntityLogicalName)
		{
		}