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POASP.NET repeater issue (+ question about best practices)
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  1. POASP.NET repeater issue (+ question about best practices)
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    copied!<p>I am fairly new to ASP.NET and I discovered repeaters recently. Some people use them, other don't and I'm not sure which solution would be the best practice.</p> <p>From what I've experienced, it makes simple operation (display a list) simple, but as soon as you want to do more complicated things the complexity explodes, logic wise. </p> <p>Maybe it's just me and me poor understanding of the concept (this is highly possible), so here's an example of what am I trying to do and my issue:</p> <hr> <p><strong>Problem</strong>: I want to display a list of files located in a folder.</p> <p><strong>Solution</strong>:</p> <pre><code>String fileDirectory = Server.MapPath("/public/uploaded_files/"); String[] files = Directory.GetFiles(fileDirectory); repFiles.DataSource = files; repFiles.DataBind(); </code></pre> <p>and</p> <pre><code>&lt;asp:Repeater ID="repFiles" runat="server" OnItemCommand="repFiles_ItemCommand" &gt; &lt;ItemTemplate&gt; &lt;a href="/public/uploaded_files/&lt;%# System.IO.Path.GetFileName((string)Container.DataItem) %&gt;" target="_blank"&gt;View in a new window&lt;/a&gt; &lt;br /&gt; &lt;/ItemTemplate&gt; &lt;/asp:Repeater&gt; </code></pre> <p>This works fine.</p> <hr> <p><strong>New problem</strong>: I want to be able to delete those files.</p> <p><strong>Solution</strong>: I add a delete link in the item template:</p> <pre><code>&lt;asp:LinkButton ID="lbFileDelete" runat="server" Text="delete" CommandName="delete" /&gt; </code></pre> <p>I catch the event:</p> <pre><code> protected void repFiles_ItemCommand(object source, RepeaterCommandEventArgs e) { if (e.CommandName == "delete") { // ... blah } } </code></pre> <p>... then what? How do I get the file path that I want to remove from here knowing that e.Item.DataItem is null (I ran the debugger). </p> <p>Did I just wasted my time using repeaters when I could have done the same thing using an loop, which would have been just as simple, just -maybe- less elegant?</p> <p>What is the real advantage of using repeaters over other solutions?</p>
 

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