I am using 2015.1.401.40 of your asp.net for ajax controls.
I have a very odd thing happening and am just looking for suggestions.
I have a user control that contains a RadTabStrip and a RadMultiPage and several other controls... I have the SelectedIndex of the TabStrip set to 0, the first tab's Selected property is set to True, and the SelectedIndex of the MultiPage is set to 0.
This user control is in an ASP Panel that has its visible property set to False. The user selects some things and then clicks a linkbutton at which time a RadAjaxManager postback occurs.
When the page loads, the first tab is selected, but all the content from all of the PageViews is displayed.
If I then click on each tab, only the content for each tab is displayed. In other words, the RadMultiPage and TabStrip are working properly.
I use this same asp markup, same layout etc in a different user control, and it works.
If I set EnableAjax="false" in this control, it also works.
It also works fine in IE 10 and Chrome and Firefox.
Q. Can you think of anything that could be causing something like this?
Q. Do you have any troubleshooting ideas for me to try, or any properties I should be setting on any of the controls? I've stripped the page down as much as I can, and it is still happening.
I so much dislike older versions of IE...