How to pad a string with zeroes

[OriginalGriff]

To do this while keeping it as a string will be messy:

        string x = "456.78";
        string\[\] parts = x.Split('.');
        string whole = parts\[0\];
        string decpart = parts\[1\];
        string y = new string('0', 5 - whole.Length) + whole;
        string z = decpart + new string('0', 4 - decpart.Length);
        string padded = y + "." + z;

And that has no error checking! To convert to double and back is probably the best way:

        string x = "456.78";
        double d = double.Parse(x, System.Globalization.CultureInfo.InvariantCulture);
        string padded = string.Format("{0:00000.0000}", d);

But you will have to be absolutely sure that your number strings are all in "nnn.nn" format - remember that some cultures use "nnn,nn" which would bolox you right up! (That may be why your conversion gave funky results...)

You should never use standby on an elephant. It always crashes when you lift the ears. - Mark Wallace C/C++ (I dont see a huge difference between them, and the 'benefits' of C++ are questionable, who needs inheritance when you have copy and paste) - fat_boy

[OkkiePepernoot]

Not sure if this is what you mean but try this: string strLong = String.Format(CultureInfo.InvariantCulture, "{0:00000.0000}", Double.Parse("455.66", CultureInfo.InvariantCulture));

[PIEBALDconsult]

I'd use a Regular Expression to perform the split.

[OriginalGriff]

I thought of doing it via Linq to SQL and a stored procedure, but decided it was too much typing... :laugh:

You should never use standby on an elephant. It always crashes when you lift the ears. - Mark Wallace C/C++ (I dont see a huge difference between them, and the 'benefits' of C++ are questionable, who needs inheritance when you have copy and paste) - fat_boy

[PIEBALDconsult]

I would think your small intestine would leap up your throat and throttle your brain if you tried that.

[OriginalGriff]

Yeah, but it'd be worth it - I could post it to "Coding Horrors"

You should never use standby on an elephant. It always crashes when you lift the ears. - Mark Wallace C/C++ (I dont see a huge difference between them, and the 'benefits' of C++ are questionable, who needs inheritance when you have copy and paste) - fat_boy

[Luc Pattyn]

I hope you don't get any negative numbers... :)

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[PIEBALDconsult]

They're strings, not numbers. :-D

[Luc Pattyn]

even numeric strings could have a negative inclination. :)

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[PIEBALDconsult]

Luc Pattyn wrote:

numeric strings

Oxymoron. :-D

Luc Pattyn wrote:

negative inclination

I decline to respond to that.