Sets or retrieves the image in the grid row selector (selector icon). The image name should be defined in the stylesheet and linked to the actual image file with the css rules.
See how to include additional images in your stylesheet.
var value = obj.getSelectorImage();
obj.setSelectorImage(value);
obj.onSelectorImageChanging = function(value){...};
obj.onSelectorImageChanged = function(value){...};
obj.onSelectorImageError = function(value){...};
obj.setSelectorText("selector text");
obj.setSelectorImage("favorites"); // selector image
obj.setSelectorTooltip("tooltip text");
Overview: using images
Grid templates: selector
Selector model: text, tooltip, link, value, data, format
Image properties: cell, header, footer, top, bottom