hide/display using EditPostRenderCode in lightswitch

Question

I am using search control for the browse details screen. Initially the list/Tile list is not visible. I want it to be visible once I type and enter in the search box. I tried using the following code in the method,

 

myapp.BrowseemployeeDetails.SearchingID_postRender = function (element, contentItem) {
// Write code here.
screen.ContentItem("employeeDetails").IsVisible = true;

};

 

but its not working.. I am new to lightswitch, so detail help would be grateful.