//Register for MDS enabled site otherwise the display template doesn't work on refresh
RegisterModuleInit("/_catalogs/masterpage/display templates/csr_ovr_TNDeskList.js", RegisterDeskList); // CSR-override for MDS enabled site
RegisterDeskList(); //CSR-override for MDS disabled site (because we need to call the entry point function in this case whereas it is not needed for anonymous functions)

function RegisterDeskList () {
    /*
     * Initialize the variable that store the overrides objects.
     */
	var overrideCtx = {};
	overrideCtx.Templates = {};
	
//	Assign functions or plain html strings to the templateset objects:
//	header, footer and item.
	overrideCtx.Templates.Header = "Overridden<br/><B><#=ctx.ListTitle#></B><hr><ul>";
	overrideCtx.Templates.Footer = "</ul><hr>Footer";

// 	This template is assigned to the CustomItem function.
	overrideCtx.Templates.Item = CustomItem;
	overrideCtx.BaseViewID = 99; //Note: This is the BaseViewID we'll set when the renderlistview is called.
	overrideCtx.ListTemplateType = 100;

// Now override the RenderListView once the ClientTemplates.JS has been called
ExecuteOrDelayUntilScriptLoaded(function(){

	//Take a copy of the existing Microsoft Definition of RenderListView
	var oldRenderListView = RenderListView;

	//Now redefine RenderListView with our override
	RenderListView = function(ctx,webPartID)
	{
		//Check the context of the currently rendering List view
		if (ctx.ListTitle == "Desk List")
		{
			//Override the BaseViewID if it's the one we want.
			ctx.BaseViewID = 99;
		}
	
		//now call the original RenderListView with the updated ctx object if applicable
		oldRenderListView(ctx,webPartID);
	}

},"ClientTemplates.js");
	
	//Register the template overrides.
	SPClientTemplates.TemplateManager.RegisterTemplateOverrides(overrideCtx);
};

/*
 * This function builds the output for the item template.
 * Uses the Context object to access announcement data.
 */
function CustomItem(ctx) {
    // Build a listitem entry for every entry in the list.
	var ret = "<li><a href='/sitepages/desk.aspx?DeskID=" + ctx.CurrentItem.Title + "'>" + ctx.CurrentItem.Title + "</a></li>";
	return ret;
}