public void ChangePassword(string tenantName, string username, string oldPassword, string newPassword)
{
if (string.IsNullOrEmpty(tenantName))
{
throw new ArgumentNullException("tenantName");
}
if (string.IsNullOrEmpty(username))
{
throw new ArgumentNullException("username");
}
if (string.IsNullOrEmpty(oldPassword))
{
throw new ArgumentNullException("oldPassword");
}
if (string.IsNullOrEmpty(newPassword))
{
throw new ArgumentNullException("newPassword");
}
AuthenticationLogic.ChangePassword(tenantName, username, oldPassword, newPassword);
}