I developed a geoprocessing tool that dynamically update value list filter in ArcGIS desktop and it works perfectly. However I published it online to use it in a web application, and the dynamic update value list filter fail to work but only showing the default value. A click on another value fail to update value. How can I make the dynamic filter of the geoprocessing tool work perfectly in the web application. Kindly provide me with a solution if there is any. Thanks.