I have a drop down (dropdown2) that is required IF there is something in it but it's options data is driven by ajax from another dropdown (dropdown1) selection. Sometimes dropdown2 will be empty and in that case I can't require it. So I can disable the requiredFieldValidators in javascript by calling this...
ValidatorEnable(document.getElementById(validatorId), false);
This works fine but the server still fires the requiredFieldValidator logic. Is anyone aware of how I can force the server to not validate if the validator is set to false client side?