How can I check the validation of the LCID without try\catch block?

Question

Some types has the TryParse method, for example it is Int32, Int64, Boolean, etc. It allows check the string value without try\catch block. It very much influences on productivity when many incorrect values are processing in a cycle. I need to do the same for string value of the LCID. But the CultureInfo class has not the TryParse method.

CultureInfo culture = null;
try {
  culture = CultureInfo.GetCultureInfo(Convert.ToInt32(lcid, 16));
}
catch {
}

How can I rewrite this code?

Answer 1

You could cache all the CultureInfo objects by LCID in a dictionary:

var culturesByLcid = CultureInfo
    .GetCultures(CultureTypes.AllCultures)
    .ToDictionary(c => c.LCID, c => c);

and use TryGetValue like:

CultureInfo found;
if (culturesByLcid.TryGetValue(lcid, out found))
{
    ...
}