jQuery在MVC视图中检查所有动态复选框 [英] Jquery check all dynamic checkboxlist in MVC view

问题描述

最近，我创建了此动态复选框列表，并将其显示在C#MVC Razor视图中.

Recently I created this dynamic checkboxlist and display them in C# MVC Razor view.

<ul>
    @for (int i = 0; i < Model.sites.Count; i++)
    {
        <li>
            @Html.CheckBoxFor(m => m.sites[i].IsCheck)
            @Html.LabelFor(m => m.sites[i].IsCheck, Model.sites[i].SiteName)
            @Html.HiddenFor(m => m.sites[i].SiteId)
            @Html.HiddenFor(m => m.sites[i].SiteName)
        </li>
        for (int j = 0; j < Model.sites[i].Roomz.Count; j++)
        {
            @Html.CheckBoxFor(m => m.sites[i].Roomz[j].IsCheck)
            @Html.LabelFor(m => m.sites[i].Roomz[j].IsCheck, Model.sites[i].Roomz[j].RoomName)
            @Html.HiddenFor(m => m.sites[i].Roomz[j].RoomId)
            @Html.HiddenFor(m => m.sites[i].Roomz[j].RoomName)
        }
    }
</ul>

下面的图像是复选框的显示

below image is the display of the checkboxes

如何使用jquery来检查sites.ischeck来检查同一站点下的所有这些子项目?例如，检查CO2还将检查套件1& 2

How do i use jquery on check the sites.ischeck to check all those sub-item under the same sites? example check CO2 will also check suite 1&2

推荐答案

修改html，以便您可以使用相对选择器，包括在复选框中添加类名.

Modify the html so that you can use a relative selector including adding class names to the checkboxes.

<ul>
    @for (int i = 0; i < Model.sites.Count; i++)
    {
        <li>
            @Html.CheckBoxFor(m => m.sites[i].IsCheck, new { class = "parent" })
            @Html.LabelFor(m => m.sites[i].IsCheck, Model.sites[i].SiteName)
            @Html.HiddenFor(m => m.sites[i].SiteId)
            @Html.HiddenFor(m => m.sites[i].SiteName)
            <div> // suggest you style this to give a margin-left so its indented relative to the parent
                for (int j = 0; j < Model.sites[i].Roomz.Count; j++)
                {
                    @Html.CheckBoxFor(m => m.sites[i].Roomz[j].IsCheck, new { class = "child" })
                    @Html.LabelFor(m => m.sites[i].Roomz[j].IsCheck, Model.sites[i].Roomz[j].RoomName)
                    @Html.HiddenFor(m => m.sites[i].Roomz[j].RoomId)
                    @Html.HiddenFor(m => m.sites[i].Roomz[j].RoomName)
                }
            <div>
        </li>
    }
</ul>

然后，您可以处理父"复选框的.change()事件，并在同一<li>元素内获取子"复选框

Then you can handle the .change() event of the 'parent' checkbox and get the 'child' checkboxes within the same <li> element

$('.parent').click(function() {
    var isChecked = $(this).is(':checked');
    var children = $(this).closest('li').find('.child');
    $.each(children, function(index, item) {
        $(this).prop('checked', isChecked);
    });
});

您可能还需要处理子复选框，这样，如果您取消选中任何子复选框，那么父复选框也将被取消选中；或者，如果您选中一个孩子，并且所有子复选框也都被选中，则父复选框也将被选中.将被检查.

You will probably also want to handle the the child checkboxes as well, so that if you uncheck any child, the parent will also be unchecked, or if you check a child, and all the children are also checked, the the parent will be checked.

$('.child').click(function () {
    var parent = $(this).closest('li').find('.parent');
    var isChecked = $(this).is(':checked');
    if (!isChecked) {
        // the parent must be unchecked
        parent.prop('checked', false);
    } else {
        // check if all siblings have the same checked status
        var siblings = $(this).siblings('.child');
        var total = siblings.length;
        var matches = siblings.filter(function () {
            return $(this).prop('checked') == isChecked;
        }).length;
        if (matches === total) {
            parent.prop('checked', isChecked);
        }
    }
})

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