Beginning ASP.NET 4.5 in CSharp and VB Opsylum

Gathering Data from the User x 325
7. For each of the five validation controls you added, open the Properties Grid and set the Text property
to an asterisk (*), the Display property to Dynamic, and the CssClass to ErrorMessage. To
do this for all controls at once, select the first validator control, then press the Ctrl key and click
the others. When you make changes to the Properties Grid while you’ve selected multiple controls,
the changes are applied to all of them.
8. Next, set the remaining properties for the controls as shown in the following table.
Control Properties You Need to Set Values You Need to Set
RequiredFieldValidator (for
the first e-mail address)
ErrorMessage:
ControlToValidate:
Enter an e-mail address
EmailAddress
RegularExpressionValidator ErrorMessage: Enter a valid e-mail address
RequiredFieldValidator (for
the second e-mail address)
ControlToValidate:
ErrorMessage:
ControlToValidate:
EmailAddress
Confirm the e-mail address
ConfirmEmailAddress
CompareValidator ErrorMessage: The e-mail addresses don’t
match
RequiredFieldValidator (for
the Comments field)
ControlToCompare:
ControlToValidate:
ErrorMessage:
ControlToValidate:
EmailAddress
ConfirmEmailAddress
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Comments
9. Still in Design View, click the
RegularExpressionValidator once,
open its Properties Grid, and locate the
ValidationExpression property. When you click
the property in the grid, the grid shows a button with
an ellipsis. When you click that button, you get a
dialog box that enables you to select a regular expression,
shown in Figure 9-7.
10. Scroll down in the list and then click Internet e-mail
address from the list and note that VS inserts a long
FIGURE 9-7