User-893317190 posted
Hi conners,
They should work separately.
HTMLEditorExtender can work without HtmlEditor ,but it should extend a textbox just as follows.(please set the TargetControlID property of HtmlEditorExtender to the id of textbox).
HTMLEditor need not to attach to textbox control. However, HtmlEditor is deprecated.https://github.com/DevExpress/AjaxControlToolkit/wiki/Editor
<asp:TextBox ID ="txtDescription" TextMode ="MultiLine" Columns ="70" Rows ="6" runat ="server" />
<ajaxToolkit:HtmlEditorExtender ID ="HtmlEditorExtender1" runat ="server" TargetControlID ="txtDescription" >
<Toolbar>
<ajaxToolkit:Bold />
<ajaxToolkit:Italic />
<ajaxToolkit:Underline />
<ajaxToolkit:JustifyLeft />
<ajaxToolkit:JustifyCenter />
<ajaxToolkit:JustifyRight />
<ajaxToolkit:JustifyFull />
<ajaxToolkit:CreateLink />
<ajaxToolkit:UnLink />
</Toolbar>
</ajaxToolkit:HtmlEditorExtender >
For more information about HtmlEditor , you could refer to
https://docs.microsoft.com/en-us/aspnet/web-forms/overview/ajax-control-toolkit/htmleditor/how-do-i-use-the-html-editor-control-cs
Best regards,
Ackerly Xu