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Asked: 2026-05-11T10:09:50+00:00

I am trying to wrap my head around the control infrastructure to understand which

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I am trying to wrap my head around the control infrastructure to understand which ones ASP.NET maintains view state for.

There are these regular HTML controls ex: <input type='radio' checked='checked'/> -> I understand these do not have viewstate

Then there are HTML controls with runat=’server’ <input type='radio' checked='checked' runat='server'/> -> Does the viewstate get maintained between postbacks?

Then there are ASP.NET controls <asp:TextBox id='txtMyText' runat='server'/> -> I understand these do have viewstate

We have a few custom controls that inherit HtmlTextBox <myPrefix:myTextBox id='txtMyText' runat='server'/> -> Is this the same as type 2 above?

Is it safe to assume that any control with runat='server' tag will have viewstate maintained?

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  1. There are 3 types of controls, the standard HTML elements like , HTML server controls which have the runat=server tag added, and full web controls. Only the web controls have viewstate maintained.

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