We have a sample of the scenario depicted in this article in our WebUI Studio 2009 R2 SP1 WebGrid sample on the page ClientBinding_VirtualGroupPaging_WebService.aspx. The sample is using the GetPagedBugs function to select the data and in the new sample, this function has been modified using technique in section WebGrid LINQ DataProvider.

You will need to modify the select method in your WebService as well using the LINQ DataProvider in order to automatically handle the select operations.

What I meant in the earlier post is the ASP .NET tabs is still not shown event after installing the ASP .NET manually, however my poject will run after the installation.

The 2 article you provided is quite spot on regarding this issue. It seems there is an issue in running IIS in 32 bit mode in 64 bit OS. Articles I found during my research regarding this issue also share the same sentiment.  

If you would like to change the project's .NET Framework version, you will need to use the command line tool under this scenario, this article < ASP.NET Tab is missing in the IIS MMC in the web server running Windows XP Pro x64 Edition with .NET Framework 2.0 (WOW64) >, has detaild the steps.

It seems this behavior is caused by an IE bug. In order to display <d in IE you will need to insert the &ltd as &amp;ltd in the database so IE would not render it as <

Here is the updated snippet for OPTION element:

function _WebGrid_OnEnterEditMode(controlId, tblName, editObject) {   
    //The workaround provided for the user for this issue
    
    var _WebGrid = ISGetObject(controlId);

    var cellObj = editObject.ToCellObject();

    if (cellObj.Name == "Priority_WebGridColumn") {
        
        var options = editObject.element.getElementsByTagName('option');
        if (options[0].text !=  '--- PLEASE SELECT ---') {
            var newOpt = document.createElement('option');
            newOpt.setAttribute('value', '0');
            newOpt.innerHTML = '--- PLEASE SELECT ---';
            editObject.element.insertBefore(newOpt, options[0]);
        }
    }

    return true;
}

The basic idea of the function is the same, however this snippet will insert a OPTION HTML element instead of OPTGROUP.

Regarding the issue in the other thread, I will reply my response in that thread in order to kept the discussion in this thread on topic.

Using the steps you describe, the ASP .NET tab is not shown. However, after re-installing ASP.NET Framework manually, default C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis.exe -i -enable, the project runs without any issue.