/// <summary>
/// This method lists all existing tags.
/// </summary>
/// <returns>An list containing the tags.</returns>
/// <exception cref="CritSendException">In case of soap error, contains the message.</exception>
public List <string> ListAllTags()
{
string [] result = null;
CallWebMethod(delegate(Authentication auth)
{
result = _client.listAllTags(auth);
}, true);
return(new List <string>(result));
}
