Disable Select Dropdown

[cpurick]

I have a case where user action enables a disabled Select. I've found that ValidateAll will not run on a previously disabled Select. Someone suggested using Readonly. Now it validates, but Readonly doesn't prevent option selection. I tried with both binding and value assignment, and I tried testing e.Value in an onchange event.

Is there a way to "disable" option Select without using the Disabled property? Alternatively, can I get ValidateAll to run on newly-enabled Select?