How to disable the default validation in MultiComboBox

Hello,

I want to remove the default validation for MultiComboBox control as part of some requirement.

I am binding the model only after a button click. Since there will be no data at the beginning, it throws a validation error. I want to override this behavior. In ComboBox it's working perfectly, the issue is only when I use MultiComboBox.

I am trying ComboBox behaviour with multiselect.

Regards,

Aravinth