I have a custom form container block with two properties and the form inherits from FormContainerBlock. I could able to set the properties in CMS mode of the form but unable to get the property values in the controller. I could able to render the default formcontainer values like Request.Form["__FormGuid"]. But I cannot able to render the custom properties using Request.Form["__CustomProperty"]. Is there anyway to render the custom properties through Request.Form or any other method?