[Solved] AsyncUpload UploadedFiles Collection sort order

[Fit2Page]

Hi,

I have to process the files in the UploadedFiles collection in a certain order (alphabetical). Is that possible from the collection (LINQ?) or should I save the files first to the TargetDirectory and go from there?

Marc

[Vasko]

Hi Marc,

The UploadedFiles collection in RadAsyncUpload reflects the order in which the user selected or dragged the files, not an alphabetical order. There is no built-in property or method to automatically sort the UploadedFiles collection. You do not need to save the files to the TargetDirectory first. You can process the files in alphabetical order directly from the UploadedFiles collection by sorting them with LINQ in your code-behind:

<telerik:RadAsyncUpload runat="server" ID="RadAsyncUpload1" MultipleFileSelection="Automatic" />
<telerik:RadButton runat="server" ID="RadButton1" Text="Postback" AutoPostBack="true" OnClick="RadButton1_Click" />

protected void RadButton1_Click(object sender, EventArgs e)
{
    List<UploadedFile> sortedFiles = RadAsyncUpload1.UploadedFiles.Cast<UploadedFile>()
        .OrderBy(f => f.FileName)
        .ToList();

    foreach (UploadedFile file in sortedFiles)
    {
        // Process each file in alphabetical order
    }
}

Regards,
Vasko
Progress Telerik