gistfile1.cs

/// <summary>Removes Diacritics (tilde, cédille, umlaut and friends) from String</summary>
public static string RemoveDiacritics(this string s)
{
    string normalizedString = s.Normalize(NormalizationForm.FormD);
    StringBuilder stringBuilder = new StringBuilder();

    for (int i = 0; i < normalizedString.Length; i++)
    {
        char c = normalizedString[i];
        if (CharUnicodeInfo.GetUnicodeCategory(c) != UnicodeCategory.NonSpacingMark)
            stringBuilder.Append(c);
    }

    return stringBuilder.ToString();
}