WF activity to download and save image from URL

// enjoy. AK :)

using System;
using System.Activities;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Net;
using System.ComponentModel;

namespace WebHelpers.DownloadImageFromUrl
{
    public class DownloadAndSaveImage : CodeActivity
    {
        [RequiredArgument, Description("Full URL path to the image")]
        [Category("URL")]
        public InArgument<String> ImageUrl { get; set; }

        [RequiredArgument, Description("Folder to save the file in")]
        [Category("Save as...")]
        public InArgument<String> SaveFolderPath { get; set; }

        [RequiredArgument, Description("File name that the image will be saved as. Without extension!")]
        [Category("Save as...")]
        public InArgument<String> SaveFileName { get; set; }

        [RequiredArgument, Description("Image type to save as. Will determine file extension.")]
        [Category("Save as...")]
        public InArgument<ImageFormat> ImageFormatToUse { get; set; }

        [Category("Save as...")]
        public InArgument<bool> ShouldOverwrite { get; set; }

        protected override void Execute(CodeActivityContext context)
        {
            string fullSavePath = Path.Combine(SaveFolderPath.Get(context), SaveFileName.Get(context)) + "." + ImageFormatToUse.Get(context).ToString().ToLower();

            if (!ShouldOverwrite.Get(context))
                if (File.Exists(fullSavePath))
                    throw new IOException("File " + fullSavePath + " already exists.");

            using (WebClient webClient = new WebClient())
            {
                byte[] data = webClient.DownloadData(ImageUrl.Get(context));

                using (MemoryStream mem = new MemoryStream(data))
                {
                    var downloadedImage = Image.FromStream(mem);
                    downloadedImage.Save(fullSavePath, ImageFormatToUse.Get(context));
                }
            }
        }
    }
}