Question

我正在开发一个MVC 5 Web应用程序。在我的一个Razor视图中，我有一个表格可以输出几行数据。除了每行数据之外还有一个删除按钮。当用户单击删除按钮时，我想要弹出Bootstrap模式，并要求用户确认删除。

在foreach循环之前添加行

@Html.Hidden("item-to-delete", "", new {@id = "item-to-delete"})
@foreach (var item in Model)
{
    <td>
        <button type="" class="btn btn-sm blue deleteLead" 
            data-target="#basic" data-toggle="modal" 
            data-id="@item.bookid">delete</button>
    </td>
}

2.和我的模态

<div class="modal fade" id="basic" tabindex="-1" role="basic" aria-hidden="true" style="display: none;">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <button type="button" class="close" data-dismiss="modal" aria-hidden="true"></button>
                <h4 class="modal-title">book Delete Confirmation</h4>
            </div>
            <div class="modal-body">
                Are you Sure!!! You want to delete this Ad?
            </div>
            <div class="modal-footer">
                <button type="button" class="btn blue" id="btnContinueDelete">Continue</button>
                <button type="button" class="btn default" data-dismiss="modal">Cancel</button>
            </div>
        </div>
    </div>
</div>

脚本

<script>
    $(".deletebook").click(function(e) {
        e.preventDefault();
        var id = $(this).data('id');
        $('#item-to-delete').val(id);
    });
    $('#btnContinueDelete').click(function() {
        var id = $('#item-to-delete').val();
        $.post(@Url.Action("Deletebook", "book"), { id: id }, function(data) {
            alert("data deleted");
        });
    });
</script>

在console i get =＆gt; 传递给getElementById（）的空字符串。

Answer 1

警告，通过GET请求删除项目是不安全的！
最后我找到了一种使用bootstrap模式对话框来确认删除列表项的方法：

<tbody>
    @foreach (var item in Model)
    {
        <tr>
            <td>
                <a id="deleteItem" class="deleteItem" data-target="#basic" 
                    data-toggle="modal" 
                    data-path="@Url.Action("Delete", "MyController", new { id = @item.id })">Delete</a>
            </td>
            <td>@Html.DisplayFor(modelItem => item.name)</td>
        </tr>
    }
</tbody>

这是我的模态html

<div class="modal fade" id="basic" tabindex="-1" role="basic" aria-hidden="true" style="display: none;">
<div class="modal-dialog">
    <div class="modal-content">
        <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal" aria-hidden="true"></button>
            <h4 class="modal-title">Delete Confirmation</h4>
        </div>
        <div class="modal-body">
            Are you sure you want to delete this item?
        </div>
        <div class="modal-footer">
            <button data-dismiss="modal" type="button" class="btn btn-default">Cancel</button>
            <button id="btnContinueDelete" type="button" class="btn btn-primary">Delete</button>
        </div>
    </div>
</div>

和javascript部分

<script>
    var path_to_delete;

    $(".deleteItem").click(function(e) {
        path_to_delete = $(this).data('path');
    });

    $('#btnContinueDelete').click(function () {
        window.location = path_to_delete;
    });
</script>

这是控制器动作

// GET: MyController/Delete
[HttpGet]
public ActionResult Delete(int id)
{
    var model = Context.my_models.Where(x => x.id == id).FirstOrDefault();
    if (model != null)
    {
        Context.my_models.DeleteOnSubmit(model);
        Context.SubmitChanges();

        return RedirectToAction("List");
    }

    return new HttpNotFoundResult();
}

Answer 2

问题出在这一行：

class MyForm(forms.ModelForm): 
    def __init__(self, request, *args, **kwargs):
        super(MyForm, self).__init__(*args, **kwargs)

    def clean_email(self):
        if not request.user.is_authenticated():
            email = self.cleaned_data['email']
            if User.objects.filter(email=email).exists():
                raise forms.ValidationError(u'Email "%s" is already in use!' % email)
            return email

$.post(@Url.Action("Deletebook", "book"), { id: id }, function(data) { alert("data deleted"); });位编译成：

@Url.Action()

您需要将$.post(/book/Deletebook, { id: id }, function(data) { alert("data deleted"); });括在单引号中，否则浏览器不知道如何解释@Url.Action参数。

Answer 3

我对此有不同的看法。并不是说以前的方法不好，但我认为这种方法更好，也很容易。

<script>
    var path_to_delete;
    var root = location.protocol + "//" + location.host;

    $("#deleteItem").click(function (e) {
        path_to_delete = $(this).data('path');
        $('#myform').attr('action', root + path_to_delete);
    });
</script>

<table class="table table-hover" id="list">
    <thead class="bg-dark text-white">
        <tr>

            <th>
                Edit
            </th>
            <th>
                Employee
            </th>
            <th>
                Effective Date
            </th>
            <th>
                ST/OT/DT
            </th>
            <th>
                Other Pay
            </th>
            <th>
                Job
            </th>
            <th>
                Pending?
            </th>
            <th>
                Delete
            </th>
        </tr>
    </thead>
    <tbody>
        @foreach (var item in Model)
        {
            <tr>
                <td>
                    <a class="btn btn-sm" href="~/Employees/TerminationEdit/@item.Employee_Termination_Info_Id">
                        <i class="fa fa-lg fa-pencil-alt text-dark"></i>
                    </a>
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.Employee_Name_Number)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.Effective_Date)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.Employee_Time)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.Employee_Other_Pay)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.Job_Name)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.Pending)
                </td>
                <td>
                    <a id="deleteItem" class="btn btn-sm" data-toggle="modal" data-target="#deleteModal"
                       data-path="/Employees/TerminationDelete/@item.Employee_Termination_Info_Id">
                        <i class="fa fa-lg fa-trash-alt text-danger"></i>
                    </a>
                </td>
            </tr>
        }
    </tbody>
</table>


<!-- Logout Modal-->
<div class="modal fade" id="deleteModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
    <div class="modal-dialog" role="document">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title" id="exampleModalLabel">Are you sure?</h5>
                <button class="close" type="button" data-dismiss="modal" aria-label="Close">
                    <span aria-hidden="true">×</span>
                </button>
            </div>
            <div class="modal-body">Are you sure you want to delete this termination record? <br /><span class="text-danger">This cannot be undone.</span></div>
            <div class="modal-footer">
                <button class="btn btn-secondary" type="button" data-dismiss="modal">Cancel</button>
                @using (Html.BeginForm("TerminationDelete", "Employees", FormMethod.Post, new { id = "myform", @class = "" }))
                {
                    @Html.AntiForgeryToken()
           
                    <input type="submit" value="Delete" id="submitButton" class="btn btn-danger" />
                }
            </div>
        </div>
    </div>
</div>

所以这里发生的是页面将在模型中循环并绘制删除按钮（使用真棒字体）。请注意，这里是设置data-path属性以供以后使用。单击按钮后，它将立即设置模式弹出窗口上按钮的表单动作。正如Rasika和Vasil Valchev所指出的，这很重要，因为它在Delete按钮周围有一个表单，它将发送给POST而不是GET。另外，它还具有防伪令牌的优点。

用于删除确认mvc的bootstrap模式

3 个答案: