Refresh current frame

[Just D.]

All,

How should we refresh the current aspx frame? I disabled caching using this
command on Page_Load():
Response.Cache.SetCacheability(HttpCacheability.NoCache);
but it didn't help.

The problem is that this page shows the client Logo image, then asks to
upload a new one if required, finally it should show the uploaded picture.
The problem is that it doesn't. If I press F5, then I can see the updated
image, but if I didn't press F5, then I see the previous image.

The aspx page (frame) has the following code:

<asp:Image id="ImageLogo" style="Z-INDEX: 106; LEFT: 145px; POSITION:
absolute; TOP: 163px" runat="server" ImageUrl="Imager.aspx"
BorderColor="LightBlue" BorderStyle="Solid" BorderWidth="1px"></asp:Image>

When I trace in debugger I see that after uploading the child frame
mentioned in this control (ImageUrl="Imager.aspx") is not calling. When I
press F5 to refresh the frame the child frame is called and refresh the
image.

How can we refresh the frame from C# to renew the image?

Just D.

 

[Cowboy \(Gregory A. Beamer\)]

It is possible that images will cache, when named the same, even if the page
does not cache. It is one of those cute browser quirks. If the image has a
different name, you should not have a problem, unless your code is set to
make certain decisions prior to checking for the newer image.

You can set up the page to automatically refresh, using a meta tag perhaps,
but you still end up with the same issue if the image is being cached.

--
Gregory A. Beamer
MVP; MCP: +I, SE, SD, DBA

*************************************************
Think outside the box!
*************************************************

 

[Just D.]

Gregory,

Wow, if this is a "feature" then in this case it's easier to generate the
control name on the fly using the current datetime, maybe it will make the
page cache useless. I think it's possible although takes a few lines of
code.

Thanks for this info, I was thinking that I'm crazy.

Just D.