>Scot,
When i view your message, the code listing contains a lot of "=3D"
comments, such as: runat =3Dserver, and a couple of =20's scattered around.
Can you do me a favour and email me the code aspx code to paste in and try
out?
Can you refer me to any help references for image uploading?
Thanks
Gerry
Origional Question:
> -----------------------------------------
>
> I need to resize image which was just uploaded to the server. Image can
> be
> any format and I need to save it as JPG. I have been using ASPImage
> before.
> Is it possible to do this using .NET.
> Please Help
>
>
> ScottGu Answer:
> -----------------------------------
>
> Hi Tom,
>
> Its actually really easy to do this with .NET -- both the file upload
> part as well as the image resizing and save as JPG part. The below
> sample I've put together demonstrates how to do this (just copy/save it
> into a file called "ImageResizer.aspx" and hit it with a browser. It
> allows you to select an image on the client, upload it to the server,
> load it into an image object (without having to save it to disk), resize
> it, and then persist it to disk as a JPG.
>
> The file upload part of the solution is accomplished simply using the
> new file upload support within ASP.NET. The Image manipulation is done
> using the System.Drawing namespace -- which provides all of our graphic
> manipulation APIs.
>
> Hope this helps,
>
> Scott
>
> ------------------------------------------------------------------------
> ---------------
>
> <%@ Import Namespace=3D"System.Drawing" %>
> <%@ Import Namespace=3D"System.Drawing.Imaging" %>
>
> <html>
>
> <script language=3D"VB" runat=3Dserver>
>
> Sub UploadBtn_Click(Sender as Object, E as EventArgs)
>
> ' Obtain Image Object Reference from Uploaded Filestream
> Dim uploadImage as System.Drawing.Image
> uploadImage =3D
> System.Drawing.Image.FromStream(ImageUpload.PostedFile.InputStream)
>
> ' Calculate new Image Dimensions
> Dim width as Integer
> Dim height as Integer
>
> width =3D Integer.Parse(WidthTxt.Value)
> height =3D Integer.Parse(HeightTxt.Value)
>
> ' Obtain Resized Image Object From Uploaded Image
> Dim resizedImage as System.Drawing.Image
> resizedImage =3D uploadImage.GetThumbnailImage(width, height,
> Nothing, 0)
>
> ' Save Image to disk as a JPG
> resizedImage.Save(Server.MapPath("test.jpg"),
> ImageFormat.JPEG)
>
> ' Redirect browser to Image
> Response.Redirect("test.jpg")
>
> End Sub
>
> </script>
>
> <body>
>
> <form enctype=3D"multipart/form-data" runat=3Dserver>
>
> <h1>Welcome to ScottGu's Image Resizer</h1>
>
> Image to Upload: <input id=3D"ImageUpload" type=3D"file"
> runat=3Dserver>
>
> <br><br>
>
> New Horizontal Size: <input id=3D"WidthTxt" type=3D"text"
> value=3D"200" runat=3Dserver> <br>
> New Veritical Size: <input id=3D"HeightTxt" type=3D"text"
> value=3D"400" runat=3Dserver>
>
> <input text=3D"Upload and Resize" type=3D"submit"
> OnServerClick=3D"UploadBtn_Click" runat=3Dserver>
>
> </form>
>
> </body>
> </html>
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