~~Title: OnListerUIChange ~~
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The **OnListerUIChange** event can be implemented by a [[:scripting:script_add-ins|script add-in]] to receive notification when the state of certain user interface elements in the Lister changes.


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$$ (#)**Method Name:**
$$ OnListerUIChange
$$ (#)**Argument Type:**
$$ **[[..:scripting_objects:listeruichangedata|ListerUIChangeData]]** 
$$ (#)**Return Type:**
$$ //none//
$$ (#)**Description:**
$$ The **ListerUIChangeData.lister** property identifies the Lister, and the **change** property is a //string// indicating the element that changed. You can discover the actual state of the element using the **[[..:scripting_objects:command|Command]].IsSet** method.
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