How to set right justify (EpiTextBox) in customization tools dialog for numeric data

in customization tools dialog, i add a Toolbox (EpiTaxBox) with EpiBinding a UD field (Decimal, Default Format: ->>,>>9.99, Decimals: 2), the numeric figure always display left justify, how can i set it to right justify? many thanks for your help.

Use EpiNumericEditor and not Textbox

Add the InitializeCustomCode in customization script:

txtRTL.Appearance.TextHAlign = Infragistics.Win.HAlign.Right;

or use the EpiNumberEditor control