ASP.NET 4 Unleashed

Using the MaskedEdit Control

The MaskedEdit extender control renders a user interface that guides you as to what type of input a TextBox control accepts. For example, you can use the MaskedEdit control to force a user to enter a date, a number, or a currency amount in a certain format.

The page in Listing 39.7 includes a movie date released field. This field requires a date in the format mm/dd/yyyy. The MaskedEdit control enforces that format (see Figure 39.8).

Figure 39.8. Using the MaskedEdit control when entering a date.

Listing 39.7. ShowMaskedEdit.aspx

The MaskedEdit control has three important properties:

• TargetControlID— The TextBox ...