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Tooltip - Example: Specific Tooltip Data Without LOD

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This is a migrated thread and some comments may be shown as answers.
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orim asked on 20 Sep 2012, 10:31 AM
i tried your example Specific Tooltip Data Without LOD.
I created an Application with the same scenario. I used same javascript and code behind. Only difference i use scrolling in radgrid.
But every time i hover over the same row after the tooltip closed i get a javascript error.
Runtime Error in Microsoft JScript: The property `innerHTML` No value can be determined: the object is null or undefined
Hovering over a different row is no problem.
Please can someone help it is very urgent


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Marin Bratanov
Telerik team
answered on 21 Sep 2012, 01:21 PM

You can use the following function to set the content. It copies the HTML template instead of moving it and uses a parent element for getting the references to the spans:
function createContent(sender, args)
    //move the content first to allow the browser to cache the image
    var dataKeys = sender.get_value().split("|");
    var ttipParent = sender.get_popupElement();
    $get("productHolder", ttipParent).innerHTML = dataKeys[0];
    //if this is called before the content is moved the browser will request the image again
    $get("productImage", ttipParent).src = String.format("../../../Img/Northwind/Products/{0}.jpg", dataKeys[1]);
    $get("quantityHolder", ttipParent).innerHTML = dataKeys[2];
    $get("stockHolder", ttipParent).innerHTML = dataKeys[3];
    $get("contactHolder", ttipParent).innerHTML = dataKeys[4] + ", " + dataKeys[5];
    $get("cityHolder", ttipParent).innerHTML = dataKeys[6];
    $get("countryHolder", ttipParent).innerHTML = dataKeys[7];

You can further modify it to use classes instead of IDs, use jQuery to get the references, etc.

I have also updated your Telerik points for your report.

All the best,
Marin Bratanov
the Telerik team
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