CODEWITHSUNDEEP
asp.netsql
farhat
farhat

Reputation: 84

how to create unique id for each user in asp.net C#

how to create unique id for each user in asp.net C#

I was used random number for each profile but its not unique.

Upvotes: 2

Views: 4022

Answers (2)

Kenneth Hampton
Kenneth Hampton

Reputation: 705

If you’re using SQL Server (I’m pretty sure something similar exists in Oracle and MySQL but I can’t confirm) you can use identity column with integer value that will automatically generate unique ID for new user.

If you need something different like you shown in one of the comments “INMHPU123333” then you’ll need to create a separate function for this.

Note that this is not really ideal from the performance perspective because it will cause big index fragmentation. Not a huge deal though if you don’t have large number of records.

Upvotes: 1

Win
Win

Reputation: 62260

Guid.NewGuid() is almost unique.

Usage:

Guid id = Guid.NewGuid();

// Output: e62e2706-a8db-4fae-891a-65985fd80351

Upvotes: 3

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