Make Field Read only dynamically at Applet level

Some times there are requirements to have a dynamic read-only field at UI level. So, generally most of us uses Field Read-Only Field BC user property by using some calculated fields or flags to implement this But there is a catch that field will not be editable for updating from Script/WF or any other interface too.

So to avoid this situation, We can achieve this by using Applet Level user property "Read Only Field N". This user property allows you to make field read only on UI, by allowing field updates from workflow or scripting. 

Syntax is like below : 

Name: Read Only Field 1
Value: 'FieldName', 'ConditionFieldName'

FieldName = Name of the field which we want to be read-only
ConditionFieldName = Name of the field which specifies condition to be read only