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Xtended TextBox

, 26 Jul 2006 CPOL
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A Masked TextBox for ASP.NET

Sample Image - Extended_TextBox.jpg


Whether it is a web application or a windows application textbox is the most widely used control. The masked textbox is
available for windows forms. But we dont have one for ASP.NET. So I decided to write one for ASP.NET.
Using Extended TextBox control will save a lot of time for developers in writing code for validation.

This control uses the credit card validation script writen by John Gardner

Using the code

The control is created as WebCustomControl by extending from System.Web.UI.TemplateControl. By using this control
one can do validation on controls without writing any code. The control is built with intelligence such that, you can just select the controltype. Ex. Alpha only, Numeric Only, Alphanumeric, IP Address, Phone, Social Security Number. If you set
the controltype to SSN then the textbox is masked for Social Security Number. It has the following properties.
  • ControlType - Type of control to be rendered
  • ClassType - IP Address class type (applicable only for IP Address textbox)
  • ExtnNeeded - Telephone number extension needed (applicable only for Telephone)
  • MaxLength - The maximum number of characters that can be entered (not Applicable for IP Address, Telephone, SSN)
  • Width - Width of the control (not Applicable for IP Address, Telephone, SSN)
  • TextMode - The behaviour of textbox (not applicable for IP Address, Telephone, SSN)
  • CssClass - CSS Class name applied to the control
  • Text - Gets and Sets the value in textbox
  • SelectedCard - Gets the selected card

The control types :

Alpha only: On selecting controltype as Alpha only, it will allow anly alpha characters in the textbox.

Numeric Only: On selecting controltype as Numeric Only, it will allow only number in the textbox.

Alphanumeric: On selecting controltype as Alphanumeric, it will allow both number and alphabets in the textbox.

IP Address: On selecting controltype as IP Address, it will allow only IP Address with fixed '.' as in windows. It will allow only numbers to key in. For further validation of IP address Classtype is selected Ex: Class A, Class B... With the respect
to the class type the validation are done. So the developer doesn't need to write code for validations and autofocus.

Phone: On selecting controltype as Phone, it will allow only phone numbers with (NPA-NXX-XXXX). It will allow only
numbers to key in. To enable extentions set ExtnNeeded to true. This can also be turned off.

Social Security Number: On selecting controltype as SSN, it will allow only SSN (Area code - Group number - Serial Number).

Credit Card: On selecting card type and controltype as Credit Card, it will allow only valid Credit card numbers.

Money: On selecting card type and controltype as Money, it will allow only number or decimal values with currency symbol on the right.

Steps to use the control

1. Right click the mouse in the ToolBox, and select Add/Remove Items to open customize Toolbox dialog.
2. Select the tab .NET framework component.
3. Browse for your DLL, check it, then click Ok.
4. Drag the control from the ToolBox into the form and set the properties to the control.
5. Copy the Masked.js to the root folder of the web application.

Designer Extended textbox

For example :

<cc3:maskedtextbox id="Maskedtextbox11" runat="server" ControlType="IP Address" ClassType="Class A">
<cc3:maskedtextbox id="Maskedtextbox10" runat="server" ControlType="SSN"> </cc3:maskedtextbox>
<cc3:maskedtextbox id="Maskedtextbox7" runat="server" ControlType="Phone" ExtnNeeded="True">


The Credit card control can be used only with EnableViewstate = false.



This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Venkat Eswaran
Web Developer TCS
India India
No Biography provided

Comments and Discussions

QuestionThanks !!!! a lottt !!!! PinmemberOrlandoMorales17-Apr-12 8:53 
GeneralXtended TextBox Pinmemberscholekar21-Mar-11 3:40 
QuestionGet IP Address value in Javascript PinmemberPramod Ingle18-May-09 19:57 
Generalon Windows form.. PinmemberMrAntonD18-Sep-08 0:14 
QuestionHow to make a custom WYSWYG TextBox inherited from Usercontrol which can capture Unicode inputting? PinmemberDavidwu20-Jun-08 10:22 
QuestionHow to allow only numeric in textbox Pinmemberdilip.dil8511-Jun-08 8:49 
GeneralAwesome job Venkat Pinmemberhacher7520-May-08 14:09 
Generalrequired field validator Pinmemberrufix1-May-07 4:25 
QuestionDisable Control PinmemberHsien-Wu9-Jan-07 7:21 
AnswerRe: Disable Control PinmemberVenkat Eswaran13-Jan-07 17:58 
QuestionCould I use with Visual Studio 2005 ? Pinmemberwaimoehtun18-Dec-06 1:51 
Generalnice control, but PinmemberJosema12-Oct-06 13:28 
GeneralRe: nice control, but PinmemberVenkat Eswaran13-Oct-06 7:07 
GeneralSSN Serial number does not allow leading Zero Pinmemberhboatz28-Sep-06 5:16 
GeneralMake Phone Number Required Pinmembercreese16-Aug-06 19:39 
I am trying to use the phone number type of the Xtended Textbox, but need to make the phone number required. What is the best way to add a required field validator? You can not simply add a required field validator to the aspx form and set the controltovalidate parameter to the check the Xtended Textbox. I attempted to add the required field validator to the control code, but the required field validator only validates one control and the phone type consists of 3 textboxes. I then attempted to use a customfield validator where I wanted to use javascript to test the 3 testboxes. However, I haven't figured out any javascript to reference the 3 textboxes of the control to test whether they are blank.

Any ideas?
GeneralRe: Make Phone Number Required PinmemberVenkat Eswaran17-Aug-06 6:53 
Questionregarding Xtended Textbox Pinmembersrikant_net1-Aug-06 0:22 
AnswerRe: regarding Xtended Textbox [modified] PinmemberVenkat Eswaran1-Aug-06 2:14 
GeneralGr8 One Pinmembernvenkat31-Jul-06 3:19 
Generalfail in add to toolbox PinmemberAntonino Ferrando25-Jul-06 5:30 
AnswerRe: fail in add to toolbox PinmemberVenkat Eswaran25-Jul-06 6:59 
Questionwhy the rate is so low? Pinmemberqiuyl24-Jul-06 18:13 
Generalgood one Pinmemberbharathkumar19-Jul-06 3:43 
GeneralRe: good one PinmemberBigJim6127-Jul-06 4:07 
GeneralRe: good one PinmemberVenkat Eswaran27-Jul-06 6:46 

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