- var keys = v[this.valueField].split(',');
- var display = v[this.displayField].split(',');
+ var kv = v[this.valueField];
+ var dv = v[this.displayField];
+ kv = typeof(kv) != 'string' ? '' : kv;
+ dv = typeof(dv) != 'string' ? '' : dv;
+
+
+ var keys = kv.split(',');
+ var display = dv.split(',');