Change Field/Attribute requirement at runtime using javascript

Some times you come across with the situation when you have to make field mandatory on the form at runtime. Let say on selection of one field other field become required and if selection change field become business recommended or not required anymore.

On possible way is to use if-else statement to check if field.DataValue == null or not and respond accordingly. But following code can be used to make fields not required, required and business recommended.

crmForm.SetFieldReqLevel("fieldname",0);// set field to not required
crmForm.SetFieldReqLevel("fieldname",1); // set field to required/mandatory
crmForm.SetFieldReqLevel("fieldname",2); // set field to business recommended

Hope this helps. Please drop some comments if script is helpful.

Note: The above code is not supported by Microsoft.