Re: Web - Multiple ImageButtons calling the came function

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From: DalePres (don-t-spa-m-me_at_lea-ve-me-a-lone--.com)
Date: 03/15/05 

Date: Mon, 14 Mar 2005 22:16:50 -0600

1) Why use a WebServer Control such as the ImageButton if you want to
handle the event on the client side?

Use an HTML Image set as a Server Control and in your Page_Load method or in
a method called from Page_Load, do something like this:

myImage.Attributes.Add("onclick", "theNameOfMyClientSideJavaScriptMethod(\""
    + myVariablePathName
    + \"")";

2) To read the file system into a string array and DataBind your DataList
to it:

// for demonstration purposes, use the path that this web app is running
from

// but you may want to use a different path. If so, just make sure that the

// account that your web app is running under has access to read the
directory.

string myPath = Request.PhysicalApplicationPath;

string[] strArray =

System.IO.Directory.GetFiles(myPath,"*.gif");

DataList1.DataSource = strArray;

DataList1.DataBind();

Then, in the ASPX file, to display the image associated with the path given:

   <ASP:DATALIST ID="DataList1" RUNAT="server">
    <ITEMTEMPLATE>
     <img src="<%# Container.DataItem %>">;
    </ITEMTEMPLATE>
   </ASP:DATALIST>

HTH

DalePres

MCAD, MCDBA, MCSE

"David P. Donahue" <ddonahue@ccs.neu.edu> wrote in message
news:OjsdnMPKFHA.3336@TK2MSFTNGP10.phx.gbl...
> This is a 2-part question:
>
>
> 1) I have a web form with multiple ImageButtons on it. I'd like them all
> to do the same thing. Basically, in english-code, the function would be
> as follows:
> Set Session variable X to the ImageURL of the button that invoked me;
> Forward the user to a specific URL;
> That code is the easy part, of course. I just need to know how to tell
> the ImageButtons to call that function when they're clicked. Preferably
> within the HTML-view instead of the code-behind in Visual Studio.
>
>
> 2) Is there a way to have a control on a page (like a Repeater or
> DataList) where I can give it a directory and a file mask of some kind and
> it will make a list of ImageButtons, where each one's ImageURL is a
> matching file in the directory, and set them all to use a specific
> function as in part 1 above? I'm just looking for a way to speed up
> development of something that's going to involve many, many very similar
> pages.
>
>
> Any help would be greatly appreciated. Thank you.
>
>
> Regards,
> David P. Donahue
> ddonahue@ccs.neu.edu

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