Custom Button Design

Demo uploads land in a temporary store and are swept after 60 minutes. To keep files, handle FileUploaded — see Single File for the complete save pattern.

Create a visually striking upload button with gradients, rounded corners, and hover effects using CSS overrides on the uploader button.

What you should see: the browse button fully restyled ("Upload Your Files") while staying keyboard-reachable and wired to the same hidden input.

Drag & drop files here, or paste from clipboard

<style>
 .gradient-uploader .au-select-btn {
 background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
 color: #fff;
 border: none;
 border-radius: 2rem;
 padding: 0.75rem 2rem;
 font-weight: 600;
 box-shadow: 0 4px 15px rgba(102,126,234,0.4);
 transition: transform 0.2s, box-shadow 0.2s;
 }
 .gradient-uploader .au-select-btn:hover {
 transform: translateY(-2px);
 box-shadow: 0 6px 20px rgba(102,126,234,0.5);
 }
</style>

<div class="gradient-uploader">
 <au:AjaxFileUpload ID="Uploader1" runat="server"
 AllowMultiple="true"
 ButtonText="Upload Your Files"
 ShowProgress="true" />
</div>