asp.net c# show tooltip in bold

Question

I am trying to show a tooltip within my codebehind. (I am using ASP.NET C#) What I like to do is to show part of the tooltip in bold as such: I have the following:

     header["Emp"].ToolTip = "Employee<b>Number</b>";

it doesn't seem to work as the what it shows is:

    Employee<b>Number</b>

Thank you in advance

`ToolTip` is the tooltip of the client's OS. So you cannot change that from server. You could use a custom div instead with appropriate CSS. — Tim Schmelter, Oct 30 '12 at 16:00
Dup - http://stackoverflow.com/questions/3178377/setting-particular-part-of-the-tool-tip-text-to-be-bold-with-different-font-colo — Micah Armantrout, Oct 30 '12 at 16:01
You should use javascript instead. Just because it is a client side response. — BrOSs, Oct 30 '12 at 16:01

score 4 · Accepted Answer · edited May 23 '17 at 12:03

You cannot display bold tooltips in the way in which you are trying to do.

Tooltip property renders as a title attribute on the HTML element, which doesn't support formatting.

If you wish to format your tooltip you should use a javascript tooltip alternative.

Here is a link to a popular tooltip jQuery plugin which I have had good experience with:

http://bassistance.de/jquery-plugins/jquery-plugin-tooltip/

So that your client-side can access this data, I would add it as a HTML5 data-* attribute, and read from that:

header["Emp"].Attributes["data-tooltip"] = "Employee<b>Number</b>";

asp.net c# show tooltip in bold

1 Answers1