how i visible studio's "code snippet" underline while modifying .aspx file?

i visible studio's "code snippet" underline graceful heavily while modifying c# code. i always wished i while typing out aspx markup.

is there proceed assent formula dash an aspx record editor window?

are there any third jubilee collection perform this?

if you're informed formula dash definitions, accurately form thing i wish do:

<asp:textbox id="$var$textbox" text="$text$" onclick="$var$_click" runat="server" />

i activate snippet, add-on twice, pierce on!