Get File Size and Extension in Transformation

Nathalie Vallières asked on April 13, 2017 22:44

Hi, I'm trying to get the CMS.File extension and size from an ASPX transformation in Kentico 9. I'm using an hierarchical viewer to get all CMS.File from a few folders and then I need to display their size and extension with all the other info. Is there any built-in function that can give me that information ?

<div class="document-info">
    <h5><a href="<%# GetFileUrl("FileAttachment") %>" class="pdf-link"><%# Eval("FileName") %> (.<%# Eval("FileExtension") %> - <%# Eval("FileSize") %>)</a></h5>
    <%# IfEmpty(Eval("FileDescription"), "", "<p>" + Eval("FileDescription") + "</p>") %>
</div>

Of course, the above is not working. I need to essentially get "PDF", "JPG", etc. and the size in MB ideally (3,63 MB) but if it's in KB, such as 3692 KB, that'll do the job too (I can probably also convert it after anyway).

Thanks!

Correct Answer

Brenden Kehren answered on April 13, 2017 22:57

I place 2 very easy functions within my transformation like so:

<script runat="server">     
    public CMS.DocumentEngine.AttachmentInfo ai;  

    public string GetFileSize()
    {
        string returnValue = "";
        ai = CMS.DocumentEngine.AttachmentInfoProvider.GetAttachmentInfo(ValidationHelper.GetGuid(Eval("FileAttachment"), Guid.Empty), CMS.SiteProvider.SiteContext.CurrentSiteName);
        if (ai != null)
        { 
            returnValue = String.Format("{0} {1}", ai.AttachmentSize / 1024, " KB");
        }
        return returnValue;
    }

    public string GetFileExtension()
    {
        string returnValue = "PDF";
        if (ai != null)
        { 
            returnValue = ai.AttachmentExtension.Replace(".", "").ToUpper();
        }
        return returnValue;
    }
</script>

Then in my transformation, I call those functions like so:

<tr>
  <td><%# Eval("FileFullName") %></td>
  <td><%# Eval("FileName") %></td>
  <td><%# GetFileExtension() %></td>
  <td><%# GetFileSize() %></td>
</tr>

Which returns something like this:

Image Text

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