Invalid JSON primitive in Sencha 2.0 - Working in 1.0

[Limbo]

I am getting an "Invalid JSON primitive" error after moving to Sencha 2.0, and can't get it to work.

The JS code is this:

Ext.regModel('TemplateList', {
	fields: ['TemplateID', 'StateID', 'Caption', 'Subject', 'ForwardToType', 'ForwardTo', 'DND', 'StateEndingType', 'TextIsRequired', 'DetailsRequired', 'SuggestedEndTime']
});


var myTemplateListXTemplate = new Ext.XTemplate('<div>' +
'<div class="TemplateStateEndingType{DetailsRequired}">{Caption}</div>' +
'</div>');


myTemplateStore = new Ext.data.Store({
	model: 'TemplateList',
	storeID: 'myTemplateStore',
	autoLoad: true,
	proxy:
	{
		headers: { 'Content-Type': 'application/json; charset=utf-8' },
		url: 'Ajax.aspx/GetTemplateList',
		type: 'ajax',
		limitParam: null,
		actionMethods:
		{
			read: 'POST'
		},
		reader:
		{
			type: 'json',
			root: 'd'
		}
	}
});

The ASP.NET code is this:

[WebMethod()]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
static public AjaxTVTemplate[] GetTemplateList()
{
...
}

How do I get this to work in Sencha 2.0? I've read the documentation and tried various changes, but I can't get it to work.

[mitchellsimoens]

What does the JSON look like?

[Limbo]

Not sure - it's genereated in ASP.NET. It worked with Sencha 1.

Now it doesn't look like the function is even executed. It does not show up in the browser debugger.

[mitchellsimoens]

You checked in the Network tab in dev tools?

[Limbo]

Yes that is where I got the error message. This is more information:

HEADER INFORMATION
Request URL:http://localhost:53478/iPhone/Ajax.a...=1336049668004
Request Method:POST
Status Code:500 Internal Server Error

Request Headers
Accept:*/*
Accept-Charset:ISO-8859-1,utf-8;q=0.7,*;q=0.3
Accept-Encoding:gzip,deflate,sdch
Accept-Language:en-US,en;q=0.8
Connection:keep-alive
Content-Length:14
Content-Type:application/json;charset=UTF-8
Cookie:ASP.NET_SessionId=33at3f3y41lgfdyacm5h4e1e; .ASPXAUTH=C0398D7A8070CB9E9805F57ADCC8C446F6DA729D56B4D6137E4B4C8DB1A92768610E1E47D86BBF7ADDCF30822810DCF80366A3597907DCCF9399F468A7E31063CF0091C18D2270776BF71DBB0A29A2A28E5E51520BBE6DCBC9F80FF62F9B05016DF1A680A4EB7E201BD9F269D5955C427ADA9DABEE8D51D8C99931B95AEB0A3223E09F8967F64786004543EDC219CDEE7136470C52C4632B5644A2D4C9B3B2B918A6FA6D; Edition=Basic
Host:localhost:53478
Origin:http://localhost:53478
Referer:http://localhost:53478/iPhone/
User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.10 (KHTML, like Gecko) Chrome/20.0.1123.1 Safari/536.10
X-Requested-With:XMLHttpRequest

Query String Parameters
_dc:1336049668004

Request Payload
page=1&start=0

Response Headers
Cache-Control:private
Connection:Close
Content-Length:1062
Content-Type:application/json; charset=utf-8
Date:Thu, 03 May 2012 12:54:28 GMT
Server:ASP.NET Development Server/10.0.0.0
X-AspNet-Version:2.0.50727
jsonerror:true

RESPONSE
{"Message":"Invalid JSON primitive: page.","StackTrace":" at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializePrimitiveObject()\r\n at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeInternal(Int32 depth)\r\n at System.Web.Script.Serialization.JavaScriptObjectDeserializer.BasicDeserialize(String input, Int32 depthLimit, JavaScriptSerializer serializer)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer serializer, String input, Type type, Int32 depthLimit)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize[T](String input)\r\n at System.Web.Script.Services.RestHandler.GetRawParamsFromPostRequest(HttpContext context, JavaScriptSerializer serializer)\r\n at System.Web.Script.Services.RestHandler.GetRawParams(WebServiceMethodData methodData, HttpContext context)\r\n at System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)","ExceptionType":"System.ArgumentException"}

When I enable the Visual Studio debugger, I can see that it never enters the GetTemplateList in AJAX.ASPX function. So somehow it's not finding the function as it used to in Sencha 1.

[mitchellsimoens]

So it's returning that in the JSON... That would tell me that error is happening on the server

[Limbo]

Yes, somehow the Sencha request is not reaching the correct function, as it did before. So there is some Sencha setting that I am missing.

[mitchellsimoens]

Compare the requests between ST1's and ST2's. What's different? Different URL? Different params?

[Limbo]

Yes, good idea. I will try to compare the two and see what is different.

Will get back to you

Thanks

[Limbo]

I have tried this, and one thing I notice is different is that in Sencha 2, I have this in the header:

Request Payload
page=1&start=0

This is not part of the header in Sencha 1. How can I remove this? And what is this?