Question

我是C＃的新手，我正在用巫婆编码一个网站，我需要在数据库中的一行中插入多个数据。其中一些数据将自动设置，而其他数据将通过表格设置。这是我的控制器部分：

public ActionResult chekout()
{
    return View(new Commande());
}

[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult chekout([Bind(Include = "Id_commande,prenom,nom,Adresse,telephone,Email,produit,prix,cart")] Commande commande)
{
    var panier = from Panier in db.Paniers
    select Panier;
    var userEmail = this.User.Identity.Name;

    panier = panier.Where(x => x.user.Contains(userEmail));
    Panier[] pa = panier.ToArray();
    List<Commande> list = new List<Commande>();

    for (int i = 0; i < pa.Length; i++)
    {
        commande.Id_commande = db.Commandes.Max(I => I.Id_commande) + 1;
        commande.produit = pa[i].Quantite + " X " + pa[i].nom_produit;
        commande.prix = int.Parse(pa[i].prix) * pa[i].Quantite;
        commande.Email = userEmail;
        list.Add(commande);
    }

    db.Commandes.AddRange(list);
    db.SaveChanges();

    return RedirectToAction("order_complete", "Home");
}

这是我的观点部分：

@using(Html.BeginForm())
{
    @Html.AntiForgeryToken()
    @Html.ValidationSummary(true, "", new { @class = "text-danger" })


     <div class="form-group">
        @Html.LabelFor(model => model.prenom, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.prenom, new { htmlAttributes = new { @class = "form-control", required = "required", title = "veuillez remplir ce champ" } })
            @Html.ValidationMessageFor(model => model.prenom, "", new { @class = "text-danger" })
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.nom, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.nom, new { htmlAttributes = new { @class = "form-control", required = "required", title = "veuillez remplir ce champ" } })
            @Html.ValidationMessageFor(model => model.nom, "", new { @class = "text-danger" })
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.Adresse, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.Adresse, new { htmlAttributes = new { @class = "form-control", required = "required", title = "veuillez remplir ce champ" } })
            @Html.ValidationMessageFor(model => model.Adresse, "", new { @class = "text-danger" })
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.telephone, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.telephone, new { htmlAttributes = new { @class = "form-control", required = "required", title = "veuillez remplir ce champ" } })
            @Html.ValidationMessageFor(model => model.telephone, "", new { @class = "text-danger" })
        </div>
    </div>


    <div class="form-group">
        @Html.LabelFor(model => model.cart, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.cart, new { htmlAttributes = new { @class = "form-control", required = "required", title = "veuillez remplir ce champ" } })
            @Html.ValidationMessageFor(model => model.cart, "", new { @class = "text-danger" })
        </div>
    </div>
    <div class="form-group">
        <div class="col-md-offset-2 col-md-10">
            <input type = "submit" value="Commander" class="btn btn-primary" />
        </div>
    </div>
}

我没有收到错误，但我不知道为什么，但是它只是添加了最后一行因此，如果有人可以帮助我，我将不胜感激。

Answer 1

您要在循环中重复添加相同的commande对象，您需要在每次迭代中实例化新的对象命令。您需要在下面的循环中添加第一行，如果在类级别存在相同的名称，请务必更改变量名称“ commande”。

for (int i = 0; i < pa.Length; i++)
    {
        Commande commande = new Commande ();
        commande.Id_commande = db.Commandes.Max(I => I.Id_commande) + 1;
        commande.produit = pa[i].Quantite + " X " + pa[i].nom_produit;
        commande.prix = int.Parse(pa[i].prix) * pa[i].Quantite;
        commande.Email = userEmail;
        list.Add(commande);
    }

循环只是插入最后一行

1 个答案: