//https://msdn.microsoft.com/en-us/library/azure/dd179338.aspx
public static string CleanStringForTableKey(string text)
{
var disallowedChars = new HashSet <char>(new[] { '/', '\\', '#', '?' });
for (char i = (char)0; i <= 0x1F; i++)
{
disallowedChars.Add(i);
}
for (char i = (char)0x7F; i <= 0x9F; i++)
{
disallowedChars.Add(i);
}
return(SiteUtil.CleanString(text, disallowedChars));
}