What is MVC - AjaxStoreResult.cs replacement Ext 2.0

[dpk]

What is the replacement for the following class for MVC project using ext 2.0? If comment out lines with ConfirmationList and use this I am getting
error "Uncaught TypeError: Cannot read property 'internalid' of undefined ext.asd line 18"

public class AjaxStoreResult : ActionResult
{
private object _data;
private int _total;
private StoreResponseFormat responseFormat = StoreResponseFormat.Load;
private SaveStoreResponse saveResponse;

#region Constructor(s)

public AjaxStoreResult() { }

public AjaxStoreResult(object data)
{
this.Data = data;
}

public AjaxStoreResult(object data, int totalCount) : this(data)
{
this.Total = totalCount;
}

public AjaxStoreResult(StoreResponseFormat responseFormat)
{
this.ResponseFormat = responseFormat;
}

#endregion


public object Data
{
get { return this._data; }
set { this._data = value; }
}


public int Total
{
get { return this._total; }
set { this._total = value; }
}


public StoreResponseFormat ResponseFormat
{
get { return this.responseFormat; }
set { this.responseFormat = value; }
}


public SaveStoreResponse SaveResponse
{
get
{
if(this.saveResponse == null)
{
this.saveResponse = new SaveStoreResponse();
}
return this.saveResponse;
}
}

public override void ExecuteResult(ControllerContext context)
{
switch (this.ResponseFormat)
{
case StoreResponseFormat.Load:
StoreResponseData storeResponse = new StoreResponseData();
storeResponse.Data = JSON.Serialize(this.Data);
storeResponse.Total = this.Total;
storeResponse.Return();
break;
case StoreResponseFormat.Save:
Response response = new Response(true);
response.Success = this.SaveResponse.Success;
response.Message = this.SaveResponse.Message;
StoreResponseData saveResponse = new StoreResponseData();
saveResponse.Confirmation = this.SaveResponse.ConfirmationList;
saveResponse= this.SaveResponse;
response.Data = saveResponse.ToString();

response.Return();
break;
default:
throw new ArgumentOutOfRangeException();
}
}
}

public enum StoreResponseFormat
{
Load,
Save
}

public class SaveStoreResponse
{
private bool success = true;
private string message;

public bool Success
{
get { return this.success; }
set { this.success = value; }
}

public string Message
{
get { return this.message; }
set { this.message = value; }
}

public ConfirmationList ConfirmationList { get; set; }
}

[remeez.persent]

Hi, check the changelog:

https://examples2.ext.net/#/Getting_...nts/CHANGELOG/

116. The server AjaxStoreResult class has been renamed to StoreResult.