如何从C＃中的用户生成2个名称的不同选项 [英] How to generate different options from 2 names get from the user in C#

问题描述

我是C＃的新学员。我想做一些项目。在我的项目中，我必须从用户提供的名字和姓氏中为用户生成电子邮件ID optiions ...即：Firstlast @ x.com，lastfirst @ x.com，firstfirst @ x.com.. 。请为我建议一些方法...

HI am a new learner of C#.. I wanna do some project. in my project io have to generate email id optiions for the user from the first and last name i got from the user... ie: "[e-mail], [e-mail], [e-mail]"... Please suggest some methods for me...

推荐答案

要获取不存在的电子邮件ID，您应该拥有数据库中所有已存在的ID。 />


然后你寻找不同的组合firstlast，lastfirst，firstfirst，...

每当你在数据库中找到匹配的id时，你用这个计数器值再次尝试创建一个计数器（例如，firstlast1，然后是firstlast2，......）



或者避免大量的请求数据库，如果你知道SQL语法，你可以进行如下搜索：

To get email id that does not exist, you should have all the already existing ids in a database.

Then you look for the different combination firstlast, lastfirst, firstfirst, ...
And each time you find a matching id in your database, you create a counter a try one more time with this counter value (ex. firstlast1, then firstlast2, ...)

Or do avoid a lot of requests to the database, if you know SQL syntax, you can do a search like:

SELECT knownid FROM KnownIDTable WHERE knownid LIKE 'firstlast%'

然后分析行以获取计数器的唯一值。

and then analyze the rows to get the unique value for your counter.

您可以连接名字和姓氏。但这并不总是会产生唯一的邮件ID。



我的建议是，如果您使用登录构建应用程序，则登录名应该是唯一值。您可以获得登录名+名字+姓氏

you can concatenate first name and last name. but that will not always generate an unique mail id.

my suggestion is if you are building an application with a login , the login name should be unique value. you can get a combination of login name + first name+ last name

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