How to enter decimal values in custom screen field in a screen enhancement

Hi,
there is a requirement to provide field in custom screen that should allow only the numeric values with decilmals in a screen enhancement ?
As i cannot use field with float data type ? what are the alternates i have to do it ?
Please let me know
regards
vishnu

Hi,
I tried to create a field with NUM value wih 2 decimals by referring to CURR data type...it is giving an error...saying that reference table and field does not exist...
help me out ..
regards
vishnu

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Create a domain for that variable.
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Hi ,
I know I can place check ON at "with sign" option of the field in case I create the screen by myself.
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How to enter decimal values in custom screen field in a screen enhancement

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