Got it fixed...and it looks great...
The tooltip would trigger OK but text was not visible until I added the CSS class to define the colors, etc and used the codebehind to point to it. I had to set the CSSClass property in codebehind you cannot declaratively point to the CSSClass in markup (only CSSFile and CSSBlock). It would be nice if you could....
(partial) Markup looks like this:
<asp:ScriptManager ID="ScriptManager" runat="server" />
<asp:UpdatePanel ID="UpdatePanel" runat="server" >
<contenttemplate>
<div style="width: 100%; text-align:center">
<br />
<dx:ASPxLabel ID="lblcontentTitle" ClientInstanceName="lblcontentTitle" runat="server" CssClass="contentTitle" Text="Add Employees to Manpower Complement"></dx:ASPxLabel>
<br />
</div>
<div id="helpDiv" style="width: 100%; text-align:left">
<asp:Image ID="helpImage" runat="server" Height="20px" Width="20px" CssClass="helpIcon" ImageUrl="~/Images/Help.png" />
<eo:ToolTip
runat="server"
ID="ToolTip2"
Animation="GlideBottomToTop"
AnimationDuration="100"
HeaderHtml="<strong>View Help</strong>"
BodyHtml="<hr/><p>Click on this icon to view the Help for this page.</p>"
For="helpImage">
</eo:ToolTip>
<br />
<br />
<dx:ASPxLabel ID="ASPxLabel5" ClientInstanceName="lblUpdateStatus" runat="server" CssClass="contentStatus" Text=""></dx:ASPxLabel>
</div>
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CSS Class looks like:
.toolTips
{
color:navy;
background-color:#FAFAD2;
text-align:center;
padding: 10px 10px 5px 10px;
border:1px solid navy;
}
Server side (code-behind) is simply a property setting and looks like:
ToolTip2.CssClass = "toolTips";