ASP.NET RegularExpressionValidator Control
 Validation Server Controls
Definition and Usage
The RegularExpressionValidator control is used to ensure that an input value matches a specified pattern.
Note: Both server- and client-side validation are performed unless the browser does not support client-side validation or the EnableClientScript property is set to false.
Note: The validation will not fail if the input control is empty. Use the RequiredFieldValidator control to make the field required.
Properties
| Property |
Description |
| BackColor |
The background color of the RegularExpressionValidator control |
| ControlToValidate |
The id of the control to validate |
| Display |
The display behavior for the validation control. Legal values are:
- None (the control is not displayed. Used to show the error message only in the ValidationSummary control)
- Static (the control displays an error message if validation fails. Space is reserved on the page for the message even if the input passes validation.
- Dynamic (the control displays an error message if validation fails. Space is not reserved on the page for the message if the input passes validation
|
| EnableClientScript |
A Boolean value that specifies whether client-side validation is enabled or not |
| Enabled |
A Boolean value that specifies whether the validation control is enabled or not |
| ErrorMessage |
The text to display in the ValidationSummary control when validation fails.
Note: This text will also be displayed in the validation control if the Text property is not set |
| ForeColor |
The foreground color of the control |
| id |
A unique id for the control |
| IsValid |
A Boolean value that indicates whether the control specified by ControlToValidate is determined to be valid |
| runat |
Specifies that the control is a server control. Must be set to "server" |
| BackColor |
The background color of the RegularExpressionValidator control |
| Text |
The message to display when validation fails |
| ValidationExpression |
Specifies the expression used to validate input control. The expression validation syntax is different on the client than on the server. JScript is used
on the client. On the server, the language you have specified is used |
Example
RegularExpressionValidator
Declare one TextBox control, one Button control, one Label control, and one RegularExpressionValidator control in an .aspx
file. The submit() function checks if the page is valid. If it is valid, it returns "The page is valid!" in the Label control. If it is not valid, it
returns "The page is not valid!" in the Label control. If validation fails, the text "The zip code must be 5 numeric digits!" will be
displayed in the RegularExpressionValidator control.
Validation Server Controls
Create a free Flash website with our simple, online web design editing platform. Stunning templates
and user-friendly tools make website building easy and fun.
Start Creating your free website now!
Whether you're new to XML or already an advanced user, the user-friendly views and powerful entry helpers, wizards, and debuggers in XMLSpy are designed to meet your XML and Web development needs from start to finish.
New features in Version 2010!
- XML editor
- Graphical XML Schema / DTD editors
- XSLT 1.0/2.0 editor, debugger, profiler
- XQuery editor, debugger, profiler
- XBRL validator, taxonomy editor, taxonomy wizard
- Support for Office Open XML (OOXML)
- Graphical WSDL 1.1/2.0 editor & SOAP debugger
- JSON editing & conversion
- Java, C#, C++ code generation
- 32-bit and 64-bit versions
- And much more!
Download a free trial today!
|
|
|
|
