ASP.NET

Since the introduction of ASP.NET 2.0, I have struggled with images and background images. The issue is getting the reference in the master page to correctly find images when you navigate to pages in subdirectories. The image tag that worked in the root directory will no longer work in the subdirectory.

My first solution for this was to switch to asp:image tags, and use "~/images/myImage.jpg". That solved most of the issues.

It doesn't solve the issue for background images. As hard as I tried, I could not make anything work. Finally, I stumbled accross this technique:

In the HTML, form the body tag with a runat="server", like this:
body runat="server" id="myBody

Then in the Page_Load, use this code:

'dynamically assign a background image to an HTML element
Dim strStyle As String
'build the style
strStyle = "background-repeat:repeat;background-image: url(" & resolveUrl("~\images\bg01.gif") & ")"
'assign it
Me.myBody.Attributes("style") = strStyle