从下拉列表中获取字符串

本文关键字：字符串 获取 下拉列表 | 更新日期: 2023-09-27 18:13:50

我有包含我的数据的XML文件，我想从下拉列表保存选择字符串到这个XML。在我看来，我有这个:

@using (Html.BeginForm()) {
@Html.ValidationSummary(true)
<fieldset>
    <legend>MatchXML</legend>
    ...
    <div class="editor-label">
        @Html.LabelFor(model => model.Team)
    </div>
    <div class="editor-field">
        @Html.DropDownList("Team", (SelectList)ViewBag.Team, String.Empty)
        @Html.ValidationMessageFor(model => model.Team)
    </div>
    ...
    <p>
        <input type="submit" value="Create" />
    </p>
</fieldset>

}

在控制器:

    public ActionResult Pridat()
    {
        ViewBag.Team = new SelectList(repo.GetTeams(), "Name", "Name");
        return View();
    }
    [HttpPost]
    public ActionResult Pridat(MatchXML match, string Team)
    {
        if (ModelState.IsValid)
        {
            try
            {
                ViewBag.Team = new SelectList(repo.GetTeams(), "Name", "Name");
                match.Team = repo.GetTeamByName(Team);
                repo.AddMatch(match);
                return RedirectToAction("Index");
            }
            catch (Exception ex)
            {
                //error msg for failed insert in XML file
                ModelState.AddModelError("", "Error creating record. " + ex.Message);
            }
        }
        return View(match);
    }

模型是:

public class MatchXML
{
    public int MatchXMLID { get; set; }
    public string Opponent { get; set; }
    public DateTime MatchDate { get; set; }
    public string Result { get; set; }
    public Team Team { get; set; }
    public int Round { get; set; }
}
public class Team
{
    public int TeamID { get; set; }
    public string Name { get; set; }
    public virtual User Coach { get; set; }
    public virtual ICollection<Player> Players { get; set; }
}

我试图做一些修改来做到这一点，但它不工作。我可以做到这一点与TeamID和保存ID，但我想在xml保存字符串(球队的名字)。谢谢你的帮助

编辑:我更新了控制器和视图方法的show code

从下拉列表中获取字符串

您正在将下拉列表绑定到Team complex属性(DropDownList helper的第一个参数)。这说不通啊。只能绑定到标量值。我还建议您使用强类型版本的帮助器:

@Html.DropDownListFor(x => x.Team.TeamID, (SelectList)ViewBag.Team, String.Empty)

这样，您将使用从下拉菜单中选择的值填充POST操作中的TeamID属性。

也替换:

@Html.ValidationMessageFor(model => model.Team)

: 

@Html.ValidationMessageFor(model => model.Team.TeamID)
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