Hello all,

 I am using the AjaxData:Gridview. I am calling a web service to retrieve a datatable. The data is received because thru Firebug I can see the JSON output in the Web service Response. However, it does not load the 'result' into the ajaxdata:gridview on the page. I have looked thru the examples and cannot find a solution.

In debugging the javascript in VS, it states that 'result' is undefined ??

Here is the code:

function pageLoad(sender, e){
	var zCode = "22153"
	var radius = 20;
	DataService.ByZipCodeOrCity(zCode, radius, onLoadSuccess);
}

function onLoadSuccess(result){
	var gridView = $find('_ctl0_cphContent_ajaxGVResults');

	gridView.set_dataSource(result.Rows);
	gridView.dataBind();
}

I have a breakpoint at gridView.set_dataSource, that is where VS says 'result'= undefined, after the break it just displays the the no data text in ajaxdata:gridview.

I have the ajaxdatacontrols.dll and microsoft.web.preview.dll in the bin folder and the following in my web.config.

I am not sure if the second parameter is required in the callback function, but try to change the function to:

function onLoadSuccess(result, eventArgs)
{
....
}

 Thanks for the quick response Sonu.

I'm looking forward to getting this working. However, your suggestion yielded the same result.

In debug- result = undefined

gridview - no data

 I tried returning a table without sending variables and get the same result.

Can you try that with a new asp.net ajax project without using the AjaxDataControls? Its clearly that this has nothing to do with the controls.

 Sonu,

I found that I had an old Futures release. July instead of January.

Now I am getting the error: Type: 'DataSetConverter' does not inherits from JavaScriptConverter.

Take a look at this post:

http://dotnetslackers.com/Community/blogs/sonukapoor/archive/2008/06/13/ajaxdatacontrols-adc-faq-how-to-get-started-with-the-ajaxdatacontrols-with-visual-studio-2005.aspx

You need to add the converter to the web.config. The above post will show you how.

 Been down that path. The converter is in the web.config. I went through your tutorial first.

I'm wondering if I have all the DLLs referenced properly.

Brian

 Ok, I had to replace the DLL in my BIN. I did not have an updated DLL for Preview. I have the web.config set up.

Now I see the datatable in VS Output, but when it goes to this gridview.set_datasource i get the following error

Microsoft JScript runtime error: Sys.ArgumentTypeException: Object of type 'Object' cannot be converted to type 'Array'.
Parameter name: value

Brian

You are still returning a DataTable, right? What version of the ADC controls are you using? Right click on the dll and check the version tab. The latest beta is: 2.0.3322.23006, which you can get from:

http://dotnetslackers.com/Community/forums/please-try-out-latest-pre-beta-release-of-the-ajaxdatacontrols/t/3084.aspx

 I have downloaded the latest beta and placed it in the BIN. The error I'm getting is in the ScriptResource - under MicrosoftAjax.js, Is it not referencing the right ajax dll?

Thanks again for your help, almost there.

What is the exact error message? Can you download the demo from the same thread and compare the versions of the dll with yours?

Yes, I am returning a Datatable.  I am in C# not VB.

[

WebMethod]

In the 'Locals' in VS, I noticed your 'result' contains __type as system.data.datatable with your columns and rows. Mine does not have the _type, it is an Object while your's is a string. It must not be converting.

Here is the error:

Microsoft JScript runtime error: Sys.ArgumentTypeException: Object of type 'Object' cannot be converted to type 'Array'.
Parameter name: value

Brian

Make sure that you have this in your web.config:

<jsonSerialization maxJsonLength="4194304">
  <converters>
    <add name="DataSetConverter" type="Microsoft.Web.Preview.Script.Serialization.Converters.DataSetConverter, Microsoft.Web.Preview"/>
    <add name="DataRowConverter" type="Microsoft.Web.Preview.Script.Serialization.Converters.DataRowConverter, Microsoft.Web.Preview"/>
    <add name="DataTableConverter" type="Microsoft.Web.Preview.Script.Serialization.Converters.DataTableConverter, Microsoft.Web.Preview"/>
  </converters>
</jsonSerialization>

Besides that you will need to download the ASP.NET Futures and add the binaries Microsoft.Web.Preview.dll to your website project.

This should go in between the <scripting>/<webServices> section.

See if you can get this solution working: http://dotnetslackers.com/Community/blogs/sonukapoor/ADCSampleWebsite.zip

 Sonu,

I've got it working. A few days rest and actually shutting down Windows (instead of Hibernating) fixed it. I think I had clear my machine to reference the right DLLs.  I also set it to result.rows.

Thanks for all your help. I may be back to ask more. In the meantime, check out my friend in Montreal, www.timrideout.com.

Brian Almeter