I have a form io form. In this form I want to dynamically disable the field if the field number value is not null than the Select field in parallel to the number value must be disabled. is there a way to disable the field dynamically on form io

I have used this json logic to disable the field but not successful so far is there a way to handle this functionality
{ "json": { "if": [ { "var": "data.panelColumnsfamilyMembersNumber" }, // Check the field true, // If it has a value (not null), disable { "disabled": true } ] } }