check to see if image exists

[dinger2121]

Hello,
I have a web application that I am building. I have an images folder in my application. In my codebehind, I have to check to see if an image exists, if not, I apply a default image. I tried using

Request.Url.Host + "/Images/image.jpg";

but that doesn't seem to work. that is returning - "localhost/Images/image.jpg", which I thought would work, but the check in my if statement isn't catching it. Any idea what I should be using?

Thanks

 

[dinger2121]

Request.PhysicalApplicationPath returns the physical location. Is that the best method to use?

 

[AlexCuse]

I think you'll need to serve the image through an HTTP handler for this, passing the name via a query string. So your markup would look something like:

<img src="../../Folder/ImageHandler.ashx?imgName=image" alt="Handled Image"/>

This will allow you to return the default image if the file is not found.

An example can be found here:

http://dotnetperls.com/Content/ASHX-Handler.aspx

Hope this helps,

Alex

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[phinoppix]

On the server side, to work with a local resource, you need to get its physical location (which drive/folder). Read on Server.MapPath()