How to update an enum?

Hi,

In my application, I am using one enum having some values. That values consists of Other as a value. When it is selected from the drop down, I am showing another input field to enter user choice manually and storing in another string variable. Now, where ever I use the enum as search filed, I want to show the all enum values along with the Other values entered by the user manually. e.g., My Enum has 6 values. Say 1, 2, 3, 4, 5 and Other. Now when I select the Other from the drop down, I am entering the value 8 manually. Now when I use my enum in search filed, I want to show the values 1, 2, 3, 4, 5 and 8 in that drop down. Can anyone please help me....

Thanks,

Venkat