Photo Editor - Apply Crop Behavior

<form id="form1" runat="server">
        <asp:ScriptManager ID="ScriptManager1" runat="server" EnablePageMethods="true"/>
        <div>
            <!-- Add the custom control -->
            <aur:MyControl runat="server" ID="myControl1" />
        </div>
    </form>

_onApplyButtonClick: function(evt) {
		/// <private />
		var controller = $find(this._controllerId);
		var rr = $find(controller.get_rectangleRubberbandId());
		var bv = $find(controller.get_bitmapViewerId());
		if ((this._selectedSize != -1) && (rr) && (bv)) {
			// Get rectangle.
			var rect = rr.get_rectangle();

			// Set new crop rectangle.
			this._cropRect = this._transformedToOriginal(new Array(rect.x, rect.y, rect.width, rect.height));

			this._oldRect = new Array(rect.x, rect.y, rect.width, rect.height);
			//this._update();
			PageMethods.ApplyCropEffect(Sys.Serialization.JavaScriptSerializer.serialize({FileName: bv._bitmap$fileName, 
                    X: this._cropRect[0], Y: this._cropRect[1],
                    Width: this._cropRect[2], Height: this._cropRect[3] }), 
                function(result, userContext, methodName) { document.location = result; });


		}
		return false;
	},

using Aurigma.GraphicsMill.AjaxControls;
using Aurigma.GraphicsMill;
using System.Web.Script.Serialization;

PhotoEditorDefault
  private struct CropParams
    {
        public string FileName;
        public float X;
        public float Y;
        public float Width;
        public float Height;
    }

    [System.Web.Services.WebMethod]
    public static string ApplyCropEffect(string context)
    {
        JavaScriptSerializer jss = new JavaScriptSerializer();
        CropParams crop = jss.Deserialize<CropParams>(context);
        string _bitmapFileName = crop.FileName;
        Bitmap _bitmap = new Bitmap();
        FileCache fc = FileCache.GetInstance();
        using (System.IO.FileStream stream =
                               new System.IO.FileStream(fc.GetAbsolutePrivateCachePath(_bitmapFileName), System.IO.FileMode.Open, System.IO.FileAccess.Read))
        {
            _bitmap.Deserialize(stream);
        }
        _bitmap.Transforms.Crop(crop.X, crop.Y, crop.Width, crop.Height);
        string fileName = fc.GetPublicTempFileName(".jpg");
        _bitmap.Save(fc.GetAbsolutePublicCachePath(fileName));
        return fc.GetRelativePublicCachePath(fileName);
    }