Allow expressions to correctly monitor changes in controls so that control conditional formatting can use the expression as an operand

Allow expressions to correctly monitor changes in controls so that control conditional formatting can use the expression as an operand.

Today if you use an expression to monitor data label changes and then have a conditional format check on the outcome of this expression it doesn't work.

Because of this the conditional formatting rules are scattered all over the forms as opposed to centrally managed in the expressions of the main form.