MVC checkbox needs to be unchecked

Question

I have a few checkboxes values of which are posted to action, and when action calls the view again the checkboxes are checked according to their previous state:

<div class="D2">@Html.CheckBox("int", false, new { id = "int" })</div>
<div class="D2">@Html.CheckBox("ext", false, new { id = "ext" })</div>
<div class="D2">@Html.CheckBox("none", false, new { style = "visibility:hidden", id = "none" }
</div>

Action:

public ActionResult Images(bool? int, bool? ext, bool? none)
return View();

But I want the third theckbox ALWAYS to be unchecked, while the other ones should keep the settings. How can I achieve that please?

So you are setting the checked state explicitly to false and it still appears checked!? — Bojan Bjelic
– Bojan Bjelic, Commented Nov 4, 2011 at 23:32

Scott Rippey · Accepted Answer · 2011-11-04 23:29:31Z

1

The Html helper methods ALWAYS get the value from ModelState if they can.
To ensure the third checkbox will be unchecked, you should clear the ModelState value in your controller:

public ActionResult Images(bool? int, bool? ext, bool? none) {
    ModelState.Remove("none");
    return View();
}

For more info, see ModelState.Remove.

answered Nov 4, 2011 at 23:29

Scott Rippey

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Comments

Adam Tuliper · Accepted Answer · 2011-11-05 01:35:09Z

0

If you want it to always be unchecked, why even send it into the method, simply use a value of false in your ActionResult. It doesn't have to be present in the parameter list. Am I not following something here?

answered Nov 5, 2011 at 1:35

Adam Tuliper

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