Is there any function to format a numeric string to another string ?

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for example:"1995/3/4" to "1995/03/04"
I tried this code but I think it's better if there was an easier way

C#

string _date=:"1995/3/4"
string[] s=_date.Split('/');
_date=s[0]+"/"+Convert.toInt32(s[1]).ToString("00")+"/"+Convert.toInt32(s[2]).ToString("00");

Posted 3-Jul-14 0:04am

mit62

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Thomas Daniels · Accepted Answer · 2014-07-03T00:11:00

Solution 1

You can use a regular expression for this.

First, add this at the top of your code file:

C#

using System.Text.RegularExpressions;

Then, use this code:

C#

_date = Regex.Replace(_date, @"/(?!\d{2,})", "/0");

This replaces every slash, that's not followed by 2 or more digits, with /0 (a slash and a zero).

Posted 3-Jul-14 0:11am

Thomas Daniels

Comments

mit62 3-Jul-14 6:23am

thanks a lot

Thomas Daniels 3-Jul-14 6:25am

You're welcome!

Matt T Heffron · Accepted Answer · 2014-07-03T07:28:00

If these are always date strings, I would parse the date and then re-convert to a formatted string:

C#

//At the top:
using System.Globalization;
//
// Assuming this is Year/Month/Day in the format strings below.
// Adjustment for otherwise is pretty obvious.
string _date=:"1995/3/4";
DateTime rawDate;
if (DateTime.TryParseExact(_date, "yyyy/M/d", CultureInfo.InvariantCulture, DateTimeStyles.None, out rawDate))
{
  _date = rawDate.ToString(CultureInfo.InvariantCulture, "yyyy/MM/dd");
}
else
{
  // _date string was not a valid date. Handle "appropriately"
}

Use the appropriate CultureInfo for your application where I have CultureInfo.InvariantCulture above.