/// <summary>
 ///     Initializes a new instance of the <see cref="T:System.Object" /> class.
 /// </summary>
 protected DialogIdentitiesBl(ILogEngine logEngine)
 {
     LogEngine    = logEngine;
     AppSettingBl = AppSettingBl.GetInstance();
 }
 public static AppSettingBl GetInstance()
 {
     return(_instance ?? (_instance = new AppSettingBl()));
 }