Hi,

Firstly, sorry for the delay in replying. I have been flat out.

Anyway, after a heap of testing, and trying to get to the bottom of this, it seems that an errant javascript function is what was causing most of my issues.
However, I have also discovered another issues, mainly affecting IE11.
In IE11 the builtin loader stops at 83%. To test this, I created a new page, with a new desktop manager, and confirmed everything worked. Then I started duplicating the settings from the page that wasnt working and testing after each modification. This is how I discovered the javascript function issue, and that IE11 doesnt like the builtin loader.

Can you please test and advise.
Thanks.

foreach (DataRow lcDataRow in lcData.Rows){
  WebExpanderItem lcItem = new WebExpanderItem();
  lcItem.Header = lcDataRow["username"].ToString();
  TemplateBuilder content = new TemplateBuilder();
  ///Snipped out the building of the template.
  lcItem.ContentTemplate = content;
  lcItem.Name = lcDataRow["username"].ToString();
  WebExpander1.Items.Add(lcItem);
}

The above code is very similar to what I am attempting to achieve.

I have snipped out the actual building of the template as this seems irrelevant. It doesn’t matter how I do it, using samples, loadtemplate() etc...

The end result is an empty header and content for each item from the database.

Let me know if you need more specific details and don’t apologise for helping me! I am so very grateful!

Thanks.