Currently I’m looking for a way to either extend a standard <asp:TextBox /> control

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Asked: May 24, 20262026-05-24T05:05:19+00:00 2026-05-24T05:05:19+00:00

Currently I’m looking for a way to either extend a standard <asp:TextBox /> control

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Currently I’m looking for a way to either extend a standard <asp:TextBox /> control or use a 3rd-party control (like e.g. DevExpress) to create an e-mail receiver text field like the one currently available in Google Mail:

Google Mail
(Screenshot in German, sorry)

The text box allows for entering multiple e-mail addresses and auto-completes them very elegant from a backend database.

I would like to have the same feature as Google currently does. In my opinion the challenge would be to allow for multiple separate items that auto-complete independent of each other.

So my question is:

Are you aware of any examples/production-ready controls that fit into my ASP.NET C# 4.0 infrastructure for solving this task?

Addition

If I think longer about it, this seems to be very similar to the “Tags” field at the bottom of Stack Overflow when creating a new question. Is there source code available for this?