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how can i create a unique number in asp.net4 web application on button click and save it into a database.
Posted 19-Nov-12 5:28am
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Sergey Alexandrovich Kryukov 19-Nov-12 16:01pm
   
Not quite a correct question. When you say "unique", you should specify: unique in what scope? Nothing is 100% universally unique in the word of finite state systems, and any computer is one of them.
--SA
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Solution 2

Here is a article on generating Unique numbers in C#
Generate Unique Number in C#[^]

However if you looking to create unique values to insert into database i would recommend you to use Identity Property[^] in the SQL SERVER.
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Solution 1

Hi this a very good article on Random And Unique Code Generation

This is just the logic / Implement it in what ever language you want to.
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Solution 3

Would a GUID[^] meet your needs? The object System.GUID has a static method, NewGuid, that lets you generate an identifier pretty much guaranteed to be unique.
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