Convert "Yes" To Boolean

[StyleGuide]

Hi All, Is there a way to Convert a string "Yes" to Boolean - or does this apply only to True/False, 1/0. I've had a look at Parse, Convert.ToBoolean, and BooleanConverter, but no joy. Thanks J

[J4amieC]

string myString = "Yes"; bool myBool = (myString == "Yes") ? true : false; There is no automagic, built-in way, no.

[Thomas Stockwell]

if(val.ToLower()=="yes") valConvert=True else valConvert=False

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[StyleGuide]

hmmmm.. OK, thanks Chaps. J

[Pete OHanlon]

Yes is a string, and cannot be converted directly to boolean - as it's specific to the English language. If you were to allow this to be translated, then you'd have to take case and culture into account, e.g. Ja, ja, JA, Oui, OUI, oui.

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[Pete OHanlon]

Rather than using val.ToLower(), why not use string.Compare with the appropriate case sensitivity test in there?

if (string.Compare(val, "yes", true) == 0)

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[StyleGuide]

Thanks Pete

[StyleGuide]

One more thing.. bool boo = Convert.ToBoolean("True"); boo returns as True. If my Culture was "fr-FR", and : bool boo = Convert.ToBoolean("Vrai"); would boo return as True/Vrai? Thanks J

[J4amieC]

No, if you use reflector to look at Convert.ToBoolean you will see that it simply invokes Boolean.TryParse which, decompiled, looks like:

public static bool TryParse(string value, out bool result)
{
result = false;
if (value != null)
{
if ("True".Equals(value, StringComparison.OrdinalIgnoreCase))
{
result = true;
return true;
}
if ("False".Equals(value, StringComparison.OrdinalIgnoreCase))
{
result = false;
return true;
}
if (m_trimmableChars == null)
{
char[] destinationArray = new char[string.WhitespaceChars.Length + 1];
Array.Copy(string.WhitespaceChars, destinationArray, string.WhitespaceChars.Length);
destinationArray[destinationArray.Length - 1] = '\0';
m_trimmableChars = destinationArray;
}
value = value.Trim(m_trimmableChars);
if ("True".Equals(value, StringComparison.OrdinalIgnoreCase))
{
result = true;
return true;
}
if ("False".Equals(value, StringComparison.OrdinalIgnoreCase))
{
result = false;
return true;
}
}
return false;
}

[StyleGuide]

Ok Thanks

[Luc Pattyn]

jawel, jawohl, ... :-D

Luc Pattyn [Forum Guidelines] [My Articles]

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Happy 2008!

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[Luc Pattyn]

no if, no ternary operator: valConvert=val.ToLower()=="yes"; :)

Luc Pattyn [Forum Guidelines] [My Articles]

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Happy 2008!

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