C# setting a tooltip to a <asp:Label> or a <asp:Literal>

Question

What's the best way to ADD a TOOLTIP to either a Label or a Literal from the Code Behind of a C# ASP.NET site ??

Answer 1

Use WebControl.ToolTip Property to set tool tip on Label control.

Label1.ToolTip = "Your text as tooltip";

Answer 2

I recommend against using WebControls, I advocate using HtmlControls instead, as they provide a more direct representation of the generated output HTML.

Note that asp:Literal is not a WebControl, despite being in the WebControls namespace, so it lacks many of the forms-based properties like ToolTip.

The ToolTip property is actually a front for the HTML title="" attribute, which can be applied to any visible element. If you're using Literal then just ensure that you have the title="tip text goes here" attribute in your markup.

If you're using HtmlControls then you can use the Attributes collection, like so:

HtmlControl div = new HtmlGenericControl("div");
div.Attributes["title"] = "tooltip text here";