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Sys.UI.DomEvent offsetY Field

Gets the y-coordinate of the mouse pointer's position relative to the object that raised the event.

var offsetY = domEventVar.offsetY;

Return Value

An integer that represents the y-coordinate in pixels.

Remarks

Use the offsetY field to get the vertical offset between the mouse position and the top of the object that raised the event.

Example

The following example shows how to use the offsetY field to retrieve the y-coordinate of the mouse pointer's position relative to the object that raised the event.

<script type="text/javascript">
    Sys.UI.DomEvent.addHandler($get("Button1"), "click", processEventInfo);

    function processEventInfo(eventElement) {
        var result = '';
        try {
            result += "altKey = " + eventElement.altKey + "<br/>";
            result += "button = " + eventElement.button + "<br/>";
            result += "keyCode = " + eventElement.keyCode + "<br/>";
            result += "clientX = " + eventElement.clientX + "<br/>";
            result += "clientY = " + eventElement.clientY + "<br/>";
            result += "ctrlKey = " + eventElement.ctrlKey + "<br/>";
            result += "offsetX = " + eventElement.offsetX + "<br/>";
            result += "offsetY = " + eventElement.offsetY + "<br/>";
            result += "screenX = " + eventElement.screenX + "<br/>";
            result += "screenY = " + eventElement.screenY + "<br/>";
            result += "shiftKey = " + eventElement.shiftKey + "<br/>";
            result += "target.id = " + eventElement.target.id + "<br/>";
            result += "type = " + eventElement.type + "<br/>";
        }
        catch(e) {
            alert("Error:" + e.message);
        }
        $get('Label2').innerHTML = result;
    }
 </script>
<script type="text/javascript">
    Sys.UI.DomEvent.addHandler($get("Button1"), "click", processEventInfo);

    function processEventInfo(eventElement) {
        var result = '';
        try {
            result += "altKey = " + eventElement.altKey + "<br/>";
            result += "button = " + eventElement.button + "<br/>";
            result += "keyCode = " + eventElement.keyCode + "<br/>";
            result += "clientX = " + eventElement.clientX + "<br/>";
            result += "clientY = " + eventElement.clientY + "<br/>";
            result += "ctrlKey = " + eventElement.ctrlKey + "<br/>";
            result += "offsetX = " + eventElement.offsetX + "<br/>";
            result += "offsetY = " + eventElement.offsetY + "<br/>";
            result += "screenX = " + eventElement.screenX + "<br/>";
            result += "screenY = " + eventElement.screenY + "<br/>";
            result += "shiftKey = " + eventElement.shiftKey + "<br/>";
            result += "target.id = " + eventElement.target.id + "<br/>";
            result += "type = " + eventElement.type + "<br/>";
        }
        catch(e) {
            alert("Error:" + e.message);
        }
        $get('Label2').innerHTML = result;
    }
 </script>

See Also

Reference

Sys.UI.DomEvent Class

Sys.UI.DomEvent offsetX Field

Other Resources

Language Reference