MVC EditorFor日期不会更新foreach循环中的sub属性

Question

I'm passing the model to the View and then I want to change user.BannEndDate in the view and send it back to the controller. No matter what I will do with user.BannEndDate ActionLink always pass the value which was set by arrived model. Can anyone help me with that ?

[Model]

[DataType(DataType.Date)]
public DateTime? BannEndDate { get; set; }

[View]

@foreach (var user in Model.Users)
{
    @Html.ActionLink("Bann", "BannUser", "Account", new { userId = user.Id, bann = true, bannEndDate = user.BannEndDate} , null)
    @Html.EditorFor(u => user.BannEndDate)
}

[Controller]

public ActionResult BannUser(string userId, bool bann, DateTime? bannEndDate){}

Answer 1

As Mike McCaughan already stated, the values for @Html.ActionLink are static, since they're written when you call the page.

What you could do, is give your ActionLink and EditorFor a specific ID.

@Html.ActionLink("Bann", "BannUser", "Account", new { userId = user.Id, bann = true, bannEndDate = user.EndDate }, new { @id = "TargetLink_" + user.Id })
@Html.EditorFor(m => user.BannEndDate, null, "BannEndDate_" + user.Id)

After that you can listen to changes on those controls via jQuery and change your ActionLink ( userId = 3 will result in BannEndDate_3 and TargetLink_3 ):

$('input[id*="BannEndDate_"]').change((e) => {
    var userId = e.target.id.substr(e.target.id.indexOf("_") + 1);
    var link = $("#TargetLink_" + userId).attr('href');
    $("#TargetLink_" + userId).attr('href', link.replace(/(bannEndDate=.*$)/g, 'bannEndDate=' + encodeURIComponent($("#" + e.target.id).val())));
});