/// <summary>
 ///  インスタンスの取得
 /// </summary>
 /// <returns></returns>
 private static ErrorLogFrm getInstance()
 {
     if (Instance == null)
     {
         Form mainFrm = Application.OpenForms[0];
         mainFrm.Invoke(new InvokeDelegate(delegate()
         {
             Instance = new ErrorLogFrm();
             //Instance.Show(mainFrm);
             Instance.Show();
         }));
     }
     return(Instance);
 }
 private void ErrorLogFrm_FormClosed(object sender, FormClosedEventArgs e)
 {
     Instance = null;
 }