Scott Hanselman's Computer Zen - Turning off AutoComplete for TextBoxes in IE and FireFox

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Turning off AutoComplete for TextBoxes in IE and FireFox

Posted 2005-01-26 04:12 PM in ASP.NET.

This is one a lot of people know, but it's worth covering again because it's easily forgotten as it's a small detail. Since we do eFinance sites, we often don't want folks' UserNames collected and stored in AutoComplete, especially when the site is browsed on a public machine.

<form id="formSignOn" autocomplete="off" method="post" runat="server">

Note that autocomplete="false" doesn't work. However, autocomplete="off" works in both IE and FireFox.

Thanks to Johnson Michael for reminding me of this tip.

Tracked by:
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Wednesday, January 26, 2005 5:28:49 PM (Pacific Standard Time, UTC-08:00)

Can you control that field by field?

haacked@gmail.com (Haacked)

Wednesday, January 26, 2005 6:55:48 PM (Pacific Standard Time, UTC-08:00)

No, you cannot control it by field, only on the form.

Also, another note regarding Autocomplete. If you are using Visual Studio .NET version 2003 or earlier, it sometimes will add AUTOCOMPLETE="ON" when you are in design mode. I haven't tested this in Whidbey yet to see if this is fixed.

Tim

Wednesday, January 26, 2005 9:12:40 PM (Pacific Standard Time, UTC-08:00)

In Whidbey, FWIW, you can set a property named AutoCompleteType to specify that the TextBox either renders autocomplete="off", or that it gets its default value from a field in the vcard schema.

mike

Wednesday, January 26, 2005 11:12:18 PM (Pacific Standard Time, UTC-08:00)

Mike, AutoCompleteType sets the VCard Attribute that IE uses to pull the data from the Profile assistant, but doesn't appear (with my build of Whidbey) to affect the Form's AutoComplete stuff. However, the FORM (runat=server) has it's own AutoComplete="on|off" attribute.