From 806edfceeefe7fda47924f97237974e99fe28a02 Mon Sep 17 00:00:00 2001
From: Robert Jaros
validator - optional validation function
Return
current form panel
open fun <C : FilesFormControl> add(key: KProperty1<K, List<File>?>, control: C, required: Boolean = false, validatorMessage: (C) -> String? = null, validator: (C) -> Boolean? = null): FormPanel<K>
+Adds a files control to the form panel.
+
+key - key identifier of the control
+control - the files form control
+required - determines if the control is required
+validatorMessage - optional function returning validation message
+validator - optional validation function
Return
+current form panel