Update channel.

src/snek/static/file-upload-grid.js

@@ -26,6 +26,7 @@ class FileUploadGrid extends NjetComponent {
                     }
                 }
             })
+            dialog.open();
             return false 
         }
 

src/snek/templates/channel.html

@@ -1,18 +1,21 @@
 
 <script type="module">
-    import { NjetDialog } from "./njet.js"
+    import { njet } from "/njet.js"
 
     function deleteChannel(channelUid){
-        const dialog = new NjetDialog({
+    
-            title: "Delete channel?",
+        const dialog = new njet.showDialog({
-
+            title: 'Upload in progress',
-            buttons: [{
+            content: 'Please wait for the current upload to complete.',
-                text: "No"
+            primaryButton: {
-            },{
+                text: 'OK',
-                text: "Yes"
+                handler: function () {
-            }]
+                    dialog.remove();
-
+                }
+            }
         })
+
+
     }
 
 </script>