Joe,
There might be a way to resize the image using java. Alternatively, you can set the ImageUrl to a web page instead of a filename and use the System.Drawing.Image class to resize it.
I use the following code in a blank web page to retrieve an image from a table, but you could make some small modifications and use it to retrieve an image from a file:
Imports System.IO
Imports System.Drawing
Public Class ImageEmitter
Inherits System.Web.UI.Page
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim ID As String = Request.QueryString("ID")
Dim Key As String = Request.QueryString("Key")
Dim Source As String = Request.QueryString("Source")
Dim Field As String = Request.QueryString("Field")
Dim ImageHeight As Integer = CInt(Request.QueryString("Height"))
Dim ImageWidth As Integer = CInt(Request.QueryString("Width"))
Dim dr As SqlDataReader = SqlHelper.ExecuteReader(ConfigurationSettings.AppSettings(Server.MachineName), CommandType.Text, _
"SELECT " & Field & " FROM " & Source & " WHERE " & Key & "=" & ID)
If Not dr Is Nothing Then
dr.Read()
Dim FullSizeData() As Byte = dr.GetValue(0)
dr.Close()
Dim FullSizeImage As System.Drawing.Image
FullSizeImage = Image.FromStream(New MemoryStream(FullSizeData))
Dim SourceImageBitmap As New Bitmap(FullSizeImage)
Dim SourceImageFormat As Imaging.ImageFormat = SourceImageBitmap.RawFormat
SourceImageFormat = Imaging.ImageFormat.Jpeg
If SourceImageFormat.Equals(Imaging.ImageFormat.Bmp) Then
Response.ContentType = "image/x-ms-bmp"
ElseIf SourceImageFormat.Equals(Imaging.ImageFormat.Gif) Then
Response.ContentType = "image/gif"
ElseIf SourceImageFormat.Equals(Imaging.ImageFormat.Jpeg) Then
Response.ContentType = "image/jpeg"
ElseIf SourceImageFormat.Equals(Imaging.ImageFormat.Png) Then
Response.ContentType = "image/x-png"
ElseIf SourceImageFormat.Equals(Imaging.ImageFormat.Tiff) Then
Response.ContentType = "image/tiff"
End If
If ImageHeight > 0 And ImageWidth > 0 And (FullSizeImage.Height > ImageHeight Or FullSizeImage.Width > ImageWidth) Then
Dim dummyCallBack As Image.GetThumbnailImageAbort
dummyCallBack = New Image.GetThumbnailImageAbort(AddressOf ThumbnailCallback)
Dim ThumbNailImage As Image
ThumbNailImage = FullSizeImage.GetThumbnailImage(ImageWidth, ImageHeight, dummyCallBack, IntPtr.Zero)
ThumbNailImage.Save(Response.OutputStream, SourceImageFormat)
Else
FullSizeImage.Save(Response.OutputStream, SourceImageFormat)
End If
End If
End Sub
Function ThumbnailCallback() As Boolean
Return False
End Function
End Class
As a side benefit, GetThumbnailImage does a much better job scaling down an image than Internet Explorer. I.e. the scaled image looks a lot better.
>Chatter cant recieve points :( Actual HTML code looks like the following. Which DOES NOT work in a table... :+
>
>Thank you.
>
><IMG HEIGHT="80%" src="../images/01cPreparation.jpg" border="0" alt="01cPreparation">
>
>>Hi Joe,
>>
>>I haven't tried it, but, try to set the image's style (width and height to "100%") to see if that does it?
>>
>>Mike
>>
>>>I have pages created by my application that have an image that needs to dynamically size based on the browser window size to always show the entire image. Any ideas?
>>>
>>>My thanks in advance,