Sets or retrieves the link URL in the top-left corner of the grid (top selector link). Requires link template (AW.Templates.Link).
var value = obj.getTopLink();
obj.setTopLink(value);
obj.onTopLinkChanging = function(value){...};
obj.onTopLinkChanged = function(value){...};
obj.onTopLinkError = function(value){...};
obj.setTopText("Search");
obj.setTopLink("http://www.google.com");
obj.setTopSelectorTemplate(new AW.Templates.Link);
Grid templates: top selector, link template
Top model: text, image, tooltip, value, data, format
Link properties: cell, selector, header, footer, bottom