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Editorial Team
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Asked: 2026-06-12T05:48:54+00:00

I am trying to implement Facebook autocomplete functionality after a user types @ for

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I am trying to implement Facebook autocomplete functionality after a user types @ for a multiline ASP.Net textbox, including highlighting the selected text (this would only be a part of text inside the textbox).

My question is: is it possible to apply different styles inside a textbox or how does Facebook highlight in blue what the user choose from the completion list? How can I achieve the same result with my textbox? As far as I know one cannot apply different css inside the same textbox.

Please help & encourage me.

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1 Answer

  1. Editorial Team

    is it possible to apply different styles inside a textbox

    No.

    or how does Facebook highlight in blue what the user choose from the completion list?

    contentEditable is your keyword. This is a mechanism implemented in newer browsers to make parts of a document “editable”; and with HTML5 is has gotten standardized.

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