ASP.NET MVC 3 keep posted form data in form when there are binding errors

Question

When a user posts a form to register, if ModelState is not valid, I would like to have the input form values placed back into the appropriate form fields so they do not have to fill out the entire form again. I could pass back the object to the view and then set the value field on each form input. Is this the only way to do it.

Thanks

This should happen automagically. Can you post your view and controller? — Iain Galloway, Aug 27 '11 at 21:42
Ah, I didn't realize you HAD to use the html helpers for this to work. How can I add an Id to a html helper? @Html.TextBox("username") — Dietpixel, Aug 27 '11 at 22:02
One of the overloads takes an anonymous type for html attributes. @Html.TextBox("username", new { id = "whatever" }) if I recall correctly. — Iain Galloway, Aug 27 '11 at 22:05

score 3 · Accepted Answer · answered Aug 27 '11 at 21:59

3

The HTML helpers by default exhibit this behavior. How are you coding this? Html.TextBoxFor does this for example. The helpers use the posted values when you are in a post action and render a view without redirecting.

answered Aug 27 '11 at 21:59

Adam Tuliper

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I was using just plain html, not the helper class. Once I changed to helpers, it worked fine. Thanks. – Dietpixel Aug 27 '11 at 22:09

ASP.NET MVC 3 keep posted form data in form when there are binding errors

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