/// <summary> 根据 <see cref="IAccount.Name"/> 检查是否<b>不</b>存在相应的 <see cref="IAccount"/>. </summary>
public static AccountNotExistsResult Check(IAccountManager accountManager, String accountName)
{
if (accountManager == null) throw new ArgumentNullException("accountManager");
if (String.IsNullOrEmpty(accountName)) throw new ArgumentNullException("accountName");
IAccount account = accountManager.FindAccountByName(accountName);
if (account != null)
{
var message = String.Format("Account for name [{0}] exists.", accountName);
return new AccountNotExistsResult(false, message, account);
}
return new AccountNotExistsResult(true, null, null);
}