Textbox masking

Is there a way to “mask” a textbox for input? For example to force input of a social security number as xxx-xx-xxxx? I have experimented with the Format property of the textbox but with no luck.

Have a look a Table 381 - VAT Registration No. Format

No, but you can check Table 381 VAT Registration No. Format to see what Navision did in order to force standard input formats.

Ha ha, beaten to the clock! [:D]