How to make a ID that can generate ABC00001

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VB

how can i make the output like

ABC0001
ABC0002
ABC0003

that will automatically generate that output.. THANKS!

Posted 11-Aug-13 15:58pm

Member 10163198

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Zoltán Zörgő 12-Aug-13 15:03pm

The question is: what comes after ABC9999? Everything else depend on this.
If ABD0000, than you need some sort of "number system", if there is nothing after that, you will simply need to use output formatting - depending on the output method.

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BacchusBeale · Answer 1 · 2013-08-11T18:13:00

is this want you wanted?

C#

static List<string> GenID(int n)
        {
            string prefix = "ABC";
            char zero = '0';
            List<string> idList = new List<string>();
            string next = "";
            int nzeros = 0;
            if (n > 0)
            {
                for (int k = 1; k <= n; k++)
                {
                    next = prefix;
                    if (k <= 9) nzeros = 3;
                    else if (k <= 99) nzeros = 2;
                    else if (k <= 999) nzeros = 1;
                    else nzeros = 0;
                    for (int j = 0; j < nzeros; j++)
                    {
                        next += zero.ToString();
                    }
                    next += k.ToString();
                    idList.Add(next);
                }
            }
            return idList;
        }
</string></string></string>

Dave Kreskowiak · Answer 2 · 2013-08-12T07:44:00

Solution 2

Look into SQL "composite primary keys". You split your ID into multiple columns. The numeric part, which the database should increment, NOT YOUR CODE!, will be seperate from the alpha part of your key.

Posted 12-Aug-13 7:44am

Dave Kreskowiak

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Member 10163198 13-Aug-13 4:21am

but how..

Dave Kreskowiak 13-Aug-13 7:29am

I already told you what to Google for. That's how you find out "how".