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Convert number to string with leading spaces

Posted on 2011-09-29
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Last Modified: 2013-12-17
// there's got to be an easier better way
string ValueStr;
if (Number < 10)
{
  ValueStr = "  " + Number.ToString();
}
else if (Number < 100)
{
  ValueStr = " " + Number.ToString();
}
else if (Number < 1000)
{
  ValueStr = Number.ToString();
}
else
{
  ValueStr = "---";
}

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Question by:deleyd
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Accepted Solution

by:
käµfm³d   👽 earned 500 total points
ID: 36818647
You can do something like this:

string ValueStr = string.Format("{0,3:0}", Number);

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Where "{0}" is the placeholder for the first parameter following the format string (in this case, Number), ",3" means right justify the value and make the field a width of 3, and ":0" means format the value as a number, where there is at least one zero. You could also do:

string ValueStr = string.Format("{0,3:##0}", Number);

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which does the same thing, and essentially means the same thing, but is more visually indicative of what is going on. The hashes ( # ) mean optional values.
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