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Editorial Team
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Asked: 2026-05-22T21:15:33+00:00

My title is pretty much the question: How do I write text to the

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My title is pretty much the question: “How do I write text to the username/password input controls of a 3rd party web page using ASP.NET?”

Just for examples sake, if I wanted to write an ASP.NET page that would initially authenticate a user on my end, and then redirect to a 3rd party site and log into it using the fields displayed with credentials my app has within it (encypted obviously), how can I do this?

If you had ever seen the old Microsoft FingerPrint reader USB control, it used to do this. The software would allow you to highlight fields on a web page, and then store the credentials you provide it, and auto write to the fields upon visiting the site and using your fingerprint. I don’t want the finger print reader, just the similar functionality.

It will be a static 3rd party site and does not have to account for any site visited. I should be able to look at the source of the site I need to log into to if this helps.

Anyone know how to go about this? Thanks!!

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1 Answer

  1. Editorial Team

    Basically you need to use the WebRequest class and simulate a user controlling a web browser and manually execute each GET and POST operation that is required to log into the site.

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