How to Get RotatorItem's Attributes at client-side

[Thomas]

Dear Sir/Madam

I am facing the following problem: 
I set some attributes on a rotator's item at server-side using

protected void ItemRotator_OnItemDataBound(object sender, RadRotatorEventArgs e) {
    DataRowView drv = (e.Item.DataItem as DataRowView);
    e.Item.Attributes.Add("dbID"     , drv["ID"].ToString()      );
    e.Item.Attributes.Add("dbCaption", drv["Caption"].ToString() );
}

But i cannot get them at client side. I am using the following code at client-side:

function GetAttributeValue(anObject, strProperty) {
    if (anObject) {
        var attributes = anObject.get_attributes();
        if (attributes) {
            return attributes.getAttribute(strProperty);
        } else alert("Object.get_attributes() == null");
    } else alert("Invalid Object");
}

var SelectedItemGUID
var SelectedItemTitle
  function rotator_OnItemShow(sender, args) {
    var targetIndex = args.get_item().get_index();
    SelectedItemGUID = GetAttributeValue(args.get_item() , "dbID");
    SelectedItemTitle = GetAttributeValue(args.get_item(), "dbCaption");
  }

Function GetAttributeValue works fine with other telerik objects (ie TreeNodes) and i Know (for debug) that the rotator_OnItemShow is call when it should be.
Internet Explorer 8 gives me this error report

Message: Object doesn't support this property or method

Thank you for your time,
Thomas Sarmis.

[Fiko]

Hi Thomas,

You need to implement your code using this code in order to retrieve the custom attribute:

function GetAttributeValue(anObject, strProperty)
{
    if (anObject)
    {
        var attributes = $telerik.$('[TestAttribute]:first', anObject.get_element()).attr("TestAttribute");
        alert(attributes);
        if (attributes)
        {
            return attributes;
        }
        else
            alert("Object.get_attributes() == null");
    }
    else alert("Invalid Object");
}

For your convenience I have attached a demo to this thread.

Kind regards,
Fiko
the Telerik team

[Thomas]

Fiko,
Thank you or your answer - I believe this will solve my problems.

May I ask why this is needed for the rotator (for the rest controls- ie Treeview) my code worked fine...

Thank you.

[Rumen]

Hi Thomas,

The args.get_item() method does not return the element you expect. It returns a parent element of the element containing the specified attribute.That is why you should use the code provided by Fiko to get a reference to the expected element and obtain its attribute.

Kind regards,
Rumen
the Telerik team