/// <summary>
 /// Remove the level format
 /// </summary>
 /// <param name="areaLevelFormat"></param>
 public void Remove(AreaLevelFormat areaLevelFormat)
 {
     foreach (AreaLevelFormat levelFormat in this.InnerList)
     {
         if (levelFormat.Key == areaLevelFormat.Key)
         {
             this.InnerList.Remove(levelFormat);
             break;
         }
     }
 }
 /// <summary>
 /// Add the level format
 /// </summary>
 /// <param name="levelFormat"></param>
 public void Add(AreaLevelFormat levelFormat)
 {
     this.InnerList.Add(levelFormat);
 }