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HomeHomeArchived Discus...Archived Discus...Developing Under Previous Versions of .NETDeveloping Under Previous Versions of .NETASP.Net 2.0ASP.Net 2.0CC2:DynamicImage Modification?CC2:DynamicImage Modification?
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9/16/2008 8:36 PM
 
old Mac

Joined: 6/29/2007
Posts: 153



I am working with a custom image control that I would like to modify to display images using an ImageUrl rather than ImageBytes.  This is the custom control:

<%@ Register Assembly="DynamicImage" Namespace="MsdnMag" TagPrefix="cc2" %>

I presently am not working with the code behind, luckily all the magic seems to be taking place within the .ascx file.  I have added another column to the components SQL tableset named 'ImageUrl'.  Here's a sample of the .ascx code:

<cc2:DynamicImage ID="DynamicImage1" runat="server" ImageBytes="<%# Container.ThumbnailImage %>" Visible="<%# Container.HasImage %>" AlternateText="<%# Container.ProductName %>" />

I have tried replacing the 'ImageBytes=...' with the following variations:

ImageUrl="<%# Container.ImageUrl %>"
ImageUrl="<%# ImageUrl %>"
ImageUrl="<%# Bind("Container.ImageUrl") %>"
ImageUrl="<%# Bind("ImageUrl") %>"
ImageUrl="<%# Eval("Container.ImageUrl") %>"
ImageUrl="<%# Eval("ImageUrl") %>"

Shouldn't I be able to add a column to tableset, as mentioned above, and replace 'ImageBytes' binds with an equivalent 'ImageUrl' bind that will display image using the Url rather than dynamically storing bytes of data within the .ASCX?

Feedback Appreciated.
 
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9/17/2008 9:35 AM
 
William Severance


www.wesnetdesigns.com
Joined: 2/18/2005
Posts: 3253

Although I am not specifically familiar with that particular dynamic image control, my guess is that unless the control already exposes an ImageUrl property to which you can databind the path or url of the image file, you would not be able to modify the control in this manner.

If the control does not already expose an ImageUrl property, it's codebehind would have to be modified, perhaps extensively, to expose this new property, load the image from the file path or url rather than from a byte array.

My ImageEditor project available in the DNN Forge includes a dynamic image handler (DynamicImage.ashx) which can load the image to be displayed from either a file path or from a cached image. Perhaps this will be of help to you.

Bill, WESNet Designs
Team Lead - DotNetNuke Gallery Module Project (Not Actively Being Developed)
Extensions Forge Projects . . .
Current: UserExport, ContentDeJour, ePrayer, DNN NewsTicker, By Invitation
Coming Soon: FRBO-For Rent By Owner
 
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