SuperMap.WinRT.Mapping.TiledDynamicRESTLayer.Initialize C# (CSharp) Method

        public async override void Initialize()
        {
            if (!this.isInitializing && !base.IsInitialized)
            {
                if (string.IsNullOrEmpty(this.Url))
                {
                    Error = new ArgumentNullException(SuperMap.WinRT.REST.Resources.ExceptionStrings.InvalidUrl);
                    Initialize();
                    return;
                }
                if (IsSkipGetSMMapServiceInfo)
                {
                    if (Rectangle2D.IsNullOrEmpty(Bounds))
                    {
                        Error = new ArgumentNullException("Bounds");
                    }
                    Dpi = ScaleHelper.GetSmDpi(ReferViewBounds, ReferViewer, ReferScale, this.CRS);
                    Dpi *= AdjustFactor;

                    this.isInitializing = true;

                    base.Initialize();
                    return;
                }

                this.isInitializing = true;
                try
                {
                    this._mapServiceDefault = new SmMapService(this.Url.Trim());
                    await this._mapServiceDefault.Initialize();
                    this.mapService = new SmMapService(this.Url.Trim());
                    if (this.CRS != null && this.CRS.WKID > 0)
                    {
                        await this.mapService.Initialize(this.CRS.WKID);
                    }
                    else
                    {
                        await this.mapService.Initialize();
                    }
                    mapService_Initialized();
                }
                catch (Exception ex)
                {
                    if (ex is SecurityException)
                    {
                        base.Error = new SecurityException(SuperMap.WinRT.Resources.ExceptionStrings.InvalidURISchemeHost, ex);
                    }
                    else
                    {
                        base.Error = ex;
                    }
                    base.Initialize();
                }
            }
        }