email id validation in asp net

in the computer room charging system, in order to verify whether the text box is empty, whether the user exists, the input is legitimate, etc., we have to write the code alone, learning ASP validation controls that save a lot of things. ASP validation of user input can be easily achieved. Let's take a good look at the

This question mainly introduces the authentication mechanism of ASP and the application of ASP. Now let's simulate a simple process: User Login "Permission Validation" exception handling1. User LoginTo verify that the user is logged on successfully, and how to save the current user login information (session,cookie) after the user has successfully logged in, this

Asp. Net MVC4 updates the form by id, asp. netmvc4 The user requirement is that after a form is created, most of the fields cannot be edited. Only some of the fields can be edited. The uneditable mode is implemented by setting the disabled attribute on the input box. In this case, an error is reported directly to the c

Use ASP. NET to build a complete email Sending System If you want to use ASP for an e-mail sending system, you must first think of components developed by a third party, but this will consume a lot of money. Of course, you can also use the built-in Windows Object-cdonts. newmail object to send e-mail, which is free of

validation) the normal table validation control (4) CustomValidator: Check values (self-defined validation) by client or server function to define validation controls yourself 3 , validation summary control(1) ValidationSummary: list

next destination when sending or transferring letters. The SMTP server is the mail sending server that follows the SMTP protocol.2. System. Net. MailTo send an email using ASP. NET, you must reference the System. Net. Mail namespace. The System.

Original: ASP. MVC3 Model Validation SummaryHttp://www.wyjexplorer.cn/Post/2012/8/3/model-validation-in-aspnet-mvc3The model in ASP. MVC3 is self-validating, which is passed. The NET4 System.ComponentModel.DataAnnotations namespace is completed. All we have to do is add the corresponding

ASP. NET MVC 5.0 has been released for some time, adapted for some time, ready to refactor the original MVC project, the basic permissions to verify this piece of the record.Environment: Windows 7 Professional SP1 + Microsoft Visual Studio (MVC 5 + Web API 2)Modify the Web. config, add the forms validation mode, and add the following configuration to the system.w

Original: ASP. NET Regularexpressvalidator (regular validation) use Use of Ylbtech-asp.net-control-validator:regularexpressvalidator (regular validation) Asp. NET in Regularexpressvalidator (regular

ASP. NET MVC ModelValidation(a)PrefaceThe first part of the model binding is described in general, from the beginning of this chapter into the Model validation section, this is actually a series of model binding is often accompanied by validation. will also explain in the later space the MVC framework Model

the subject of the validation; 2) Rangevalidation control, its ControlToValidate property is the age corresponding text box; 3 Comparevalidation control, its ControlToValidate property is the password confirmation corresponding text box. There is also an attribute that is easily confused with the ControlToValidate property: The ControlToCompare property, which corresponds to a text box for the corresponding password. Distinction: The main point is

it is very easy to send emails in ASP. NET 2.0. The class library for sending emails is mainly used in the namespace system. net. in mail , The namespace has two core classes: : mailmessage: describes an email message. It has attributes such as from, to, subject, and body; ? smtpclie NT: sends a specified mailm

regular expression verifies the e-mail address effectively.[RegularExpression (@ "[A-za-z0-9._%+-][email protected][a-za-z0-9.-]+\.[ a-za-z]{2,4} ")]4.RangeThe range attribute enables you to specify the minimum and maximum values for a numeric type. The first parameter of the attribute sets a minimum value. The second parameter sets a maximum value. Range can either set int type or set to double type.[Range (5,15)]5.system.web.mvcMVC provides two

in the correct format: start with a letter, length between 6~18, can contain only characters, numbers, and underscores.Verify that it contains ^% ",; =?$\" characters: "[^%", "=?$\x22]+".Only Chinese characters can be entered: "^[\u4e00-\u9fa5]{0,}$"Verify email Address: "^\w+ ([-+.] \w+) *@\w+ ([-.] \w+) *\.\w+ ([-.] \w+) *$ ".Verify InternetURL: "^http://([\w-]+\.) +[\w-]+ (/[\w-./?%=]*)? $ ".Verify the phone number: "^ (\ (\d{3,4}-) |\d{3.4}-)? \d

password: "^[a-za-z]\w{5,17}$" is in the correct format: start with a letter, length between 6~18, can contain only characters, numbers, and underscores. Verify that it contains ^% ",; =?$\" characters: "[^%", "=?$\x22]+". only Chinese characters can be entered: "^[\u4e00-\u9fa5]{0,}$"Verify Email Address: "^\w+ ([-+.] \w+) *@\w+ ([-.] \w+) *\.\w+ ([-.] \w+) *$ ". Verify InternetURL: "^http://([\w-]+\.) +[\w-]+ (/[\w-./?%=]*)? $ ". Verify the phone n

ASP. NET MVC Model Validation (v)PrefaceThe previous article mainly explains the Modelvalidatorprovider and modelvalidator two types of custom implementations, but in the MVC framework gives us other ways to do model validation, which is the subject of this article, The model valid