When creating a new SharPoint Online web using CSOM .Net, I have to provide a valid LCID for Language property in WebCreationInformation object (when not using default). Is there a way of retrieving a list valid LCIDs from the server or do I have to hard-code this list in my app?
Try this one. May be it can help you
SPLanguageCollection lang = SPRegionalSettings.GlobalInstalledLanguages;
foreach (SPLanguage language in lang)
{
Console.WriteLine(format, language.LCID, language.DisplayName);
}
Ref: Link
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