If the HtmlEditorExtender is used in a TabPanel which is not initially active on page load, then all that is displayed is what appears to be a very narrow vertical scrollbar on the left side of the area. This can be very easily seen using the attached example. As provided, the 2nd tab is set to active in the Page.Load event hander, with the result that the HtmlEditorExtender in the 1st tab does not render correctly. If this code is removed, then the 1st tab is OK but the 2nd tab is not.
This is possibly related to the issue with the ModalPopupExtender (26995), but the suggested workaround by gbull1986 does not work in this case.
This is a high priority issue. The most common application scenario for the HtmlEditorExtender is to support the data entry of large text fields - and this is also a common scenario for use of the TabContainer/TabPanel to avoid the need for scrolling to accommodate a large amount of data which includes such fields. I cannot understand how this could have been missed during testing.
Comments: I don't understand how this issue is marked as low impact. It's actually critical since it makes the control unusable. Using Tabs is becoming increasingly common and in my project, I have to switch to the old HTMLEditor because the extender is basically a mess at the moment.
This is possibly related to the issue with the ModalPopupExtender (26995), but the suggested workaround by gbull1986 does not work in this case.
This is a high priority issue. The most common application scenario for the HtmlEditorExtender is to support the data entry of large text fields - and this is also a common scenario for use of the TabContainer/TabPanel to avoid the need for scrolling to accommodate a large amount of data which includes such fields. I cannot understand how this could have been missed during testing.
Comments: I don't understand how this issue is marked as low impact. It's actually critical since it makes the control unusable. Using Tabs is becoming increasingly common and in my project, I have to switch to the old HTMLEditor because the extender is basically a mess at the moment.