protected override void ControlsToData()
{
if (_itemDescriptionReference == null)
_itemDescriptionReference = new ConfigurationResourceReference();
base.ControlsToData();
var resourceReference =
_itemDescriptionReference as ConfigurationResourceReference;
if (resourceReference != null)
{
resourceReference.location = edtLocation.GetValue<string>();
resourceReference.quantity = (int) edtQuantity.Value;
resourceReference.type = edtType.GetValue<string>();
}
}