Sets or retrieves the width of the grid row selector (in pixels).
var value = obj.getSelectorWidth();
obj.setSelectorWidth(value);
obj.onSelectorWidthChanging = function(value){...};
obj.onSelectorWidthChanged = function(value){...};
obj.onSelectorWidthError = function(value){...};
obj.setSelectorWidth(100);
The width argument should be numeric (do not use "px", "em" or other CSS units).
Grid templates: selector
Selector model: text, image, tooltip, link, value, data, format
Width properties: column