Hi,

The function handleToggle in js/layout/sidebar.js should handle the animation, please make sure this function gets triggered on page load.

Glad to hear you managed to find an alternative solution, please let us know if you need any further help on this topic or with anything else.

Regards,
Lauris Stepanovs,
Keenthemes Support Team

Indeed the handleToggle function is in the js/layout/sidebar.js and it does handle the animation.
But that's already bundled up in js/scripts/bundle.js so adding it again is not solving it.

The solution I found and sent earlier wasn't complete though.
The final code that got it working is this:

KTTheme.AddHtmlAttribute("sidebar-toggle", "data-kt-toggle-state", "active");
if (Context.Request.Cookies["sidebar_minimize_state"] != null && String.Equals(Convert.ToString((Context.Request.Cookies["sidebar_minimize_state"])), "on"))
{
 KTTheme.AddHtmlAttribute("body", "data-kt-app-sidebar-minimize", "on");
 KTTheme.AddHtmlClass("sidebar-toggle", "active");
}
else
{
 KTTheme.AddHtmlAttribute("body", "data-kt-app-sidebar-minimize", "off");
}