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Editorial Team
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Asked: 2026-05-23T12:58:48+00:00

The ASP.NET compiler tells me a certain tag does not accept a certain attribute,

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The ASP.NET compiler tells me a certain tag does not accept a certain attribute, although it builds, and it renders correctly on the browser. It’s a dull warning message.

How can I disable that warning message in certain lines of the ASP.NET code?

The warning pops at this line:

<asp:ListItem Text="" Value="" style="display: none" />

Warning:

Validation (ASP.Net): Attribute 'style' is not a valid attribute of element 'ListItem'.

PS: I just want to disable that warning message for that specified line of code, I don’t want to disable it for the whole project. Is there a way to do this?

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1 Answer

  1. Editorial Team

    I don’t think you can suppress warnings on aspx code on individual lines because the aspx code is not really processed in a line-by-line manner (it is parsed using an XML-like parser). However, you can get around the warning by setting the style programmatically:

    MyListItemControl.Items(0).Attributes("style") = "display:none;"
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