Question

我有一个名为＆＃34; Professional＆＃34;具有属性的名为＆＃34; Skill＆＃34;。

的其他对象的列表

在我的编辑页面，我尝试做一些能够列出数据库中所有技能的内容，用户会选择某人并创建一个具有该技能的链接。

但我不知道如何实现这个目标：

我的编辑视图：

@model TCCApplication.Models.ProfessionalModel

@{
    ViewBag.Title = "Edit";
}

<h2>Edit</h2>

@using (Html.BeginForm()) {
    @Html.AntiForgeryToken()
    @Html.ValidationSummary(true)

    <fieldset>
        <legend>ProfessionalModel</legend>

        @Html.HiddenFor(model => model.Id)
        @Html.HiddenFor(model => model.UserAccount.Id)
        @Html.HiddenFor(model => model.UserAddress.Id)

        <div class="editor-label">
            @Html.LabelFor(model => model.Name)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Name)
            @Html.ValidationMessageFor(model => model.Name)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.BirthDate)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.BirthDate)
            @Html.ValidationMessageFor(model => model.BirthDate)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.PhoneNumber)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.PhoneNumber)
            @Html.ValidationMessageFor(model => model.PhoneNumber)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Profession)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Profession)
            @Html.ValidationMessageFor(model => model.Profession)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.UserAccount.Username)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.UserAccount.Username)
            @Html.ValidationMessageFor(model => model.UserAccount.Username)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.UserAccount.Password)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.UserAccount.Password)
            @Html.ValidationMessageFor(model => model.UserAccount.Password)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.UserAddress.Street)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.UserAddress.Street)
            @Html.ValidationMessageFor(model => model.UserAddress.Street)
        </div>

        <fieldset class="row">
            <legend>Habilidades</legend>

            @foreach (var skill in Model.Skills)
            {
                @Html.HiddenFor(sk => skill.Id)

                <div class="col-md-10">
                    <div class="display-label">
                        @Html.Label("Nome da habilidade: ")

                        @Html.DisplayFor(sk => skill.Name)
                    </div>

                    <div class="display-label">
                        @Html.Label("Descrição")

                        @Html.DisplayFor(sk => skill.Description)
                    </div>

                    <div class="display-label">
                        @Html.Label("Categoria: ")

                        @Html.DisplayFor(sk => skill.Category.Name)
                    </div>

                </div>

                <div class="col-md-2">
                    @Html.ActionLink("Deletar Skill", "DeleteSkill", new { skillId = skill.Id, professionalId = Model.Id })
                </div>
            }

            <p>

                <div>
                    @Html.DropDownList("Skills", (IEnumerable<SelectListItem>)ViewBag.skills)
                </div>

            </p>


            <div>
                @Html.ActionLink("Adicionar habilidade não presente na lista", "AddNewSkill", new { professionalId = Model.Id})
            </div>

        </fieldset>

        <p>
            <input type="submit" value="Save" />
        </p>
    </fieldset>
}

<div>
    @Html.ActionLink("Back to List", "Index")
</div>

@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
}

Answer 1

这将从数据库中获取不同字符串的列表。

控制器：

ViewBag.Skills = db.Skills.OrderBy(c=>c.Name).Select(c => c.Name).Distinct().ToList();

这会将先前收集的字符串放入多选列表中。

查看：

@Html.DropDownListFor(model => model.Skills, ((List<int>)ViewBag.Skills).Select(m=> new SelectListItem{Value = m.ToString(CultureInfo.InvariantCulture), Text = m.ToString(CultureInfo.InvariantCulture)}), new {multiple = "multiple"})

通过将值放入ID并将文本放入名称，可以从db结果的结果中创建SelectListItem列表，从而更智能地处理此问题。这样可以让以后更轻松地保存更改。

在发布更改之前使用新关系更新对象

1 个答案: