checking for decimal places

[Snipper]

hey all i was wondering if any1 no's if there is a way i can check if the value entered in a textbox has decimal places ie 2.03...i would like to no how to catch this ...

any ideas plz?

[NightStalker-DNS]

U could try this:

if (textbox1.Text.IndexOf(".") >= 0)
{
//Decimal does exist
}
else
{
//decimal does not exist
}

I hope this helps u. What the IndexOf method does is basically give ut the position of whatever ur looking for in the string beginning at 0 and if does not exist return -1.

I hope this makes sense

[Snipper]

yep it does thanks

[dhtmlgod]

Or some Regular Expressions:

 private bool MatchDecimal(string matchString)
 	{
 		Regex reg = new Regex(
 			@"^[-+]?[0-9]\d{0,2}(\.\d{1,2})?%?$",
 			RegexOptions.IgnoreCase
 			| RegexOptions.CultureInvariant
 			| RegexOptions.IgnorePatternWhitespace
 			| RegexOptions.Compiled
 			);
 
 		System.Text.RegularExpressions.Match result = reg.Match(matchString);
 
 		return result.Success;
 	}

[NightStalker-DNS]

Hey dhtmlgod.

Ive never quite got Regex. Do u maybe have a link for me to read about how RegularExpressions work and how to write them?

What is the benefit of it apposed to using other methods?

Thanks

[Lillyput]

You can read Regular expression from :-

http://www.windowsdevcenter.com/pub/...harp_0101.html