Question

INSERT INTO SaleItem (ProdId, SaleQuantity) SELECT ProdId, BasketProdQuantity FROM Basket;

这是我的SQL命令，我希望将它与视图上的按钮一起使用。但我不知道如何用视图上的按钮引用方法。我应该使用SqlConnection connection = new SqlConnection(connectionString)我已经将我的数据库与WebConfig连接，并将其作为DefaultConnection连接。

编辑：我是MVC和Web编码的新手，所以我不知道该怎么做。

[HttpPost]
    public ActionResult Buy(SaleItem saleitem)
    {
        if (ModelState.IsValid)
        {
            string query = "INSERT INTO SaleItem (ProdId, SaleQuantity) SELECT ProdId, BasketProdQuantity FROM Basket";
            db.Database.ExecuteSqlCommand(query);
            db.SaveChanges();

        return RedirectToAction("Index", "Basket");
        }
        return View(saleitem);
    }

并且有观点认为我想使用购买方法。

@model IEnumerable<VeriPark001.Models.Basket>

@{
    ViewBag.Title = "Index";
}

<h2>Index</h2>

<table class="table">
    <tr>
        <th>
            @Html.DisplayNameFor(model => model.Product.Book.BookName)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.BasketProdQuantity)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Product.ProdPrice)
        </th>
        <th>
            Total
        </th>

        <th></th>
    </tr>

@foreach (var item in Model) {
    <tr>
        <td>
            @Html.DisplayFor(modelItem => item.Product.Book.BookName)
            @Html.DisplayFor(modelItem => item.Product.MovieDVD.DVDName)
            @Html.DisplayFor(modelItem => item.Product.MusicCD.CDName)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.BasketProdQuantity)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Product.ProdPrice)
        </td>
        <td>
            @(item.Product.ProdPrice * item.BasketProdQuantity)
        </td>
        <td>
            <button>@Html.ActionLink("Delete", "Delete", new { id = item.BasketId })</button>
            <button>@Html.ActionLink("Update quantity", "Edit", new { id = item.BasketId })</button>

</td>

    </tr>

}
</table>

<p>
    <button>I WANT TO CALL ACTION HERE. I search for how to do that and couldn't find a proper way.</button>
    <button>@Html.ActionLink("Products", "Index", "Product")</button>
</p>

Answer 1

您可以使用Html.BeginForm并向控制器操作发送帖子请求。

替换

<p>
    <button>I WANT TO CALL ACTION HERE. I search for how to do that and couldn't find a proper way.</button>
    <button>@Html.ActionLink("Products", "Index", "Product")</button>
</p>

与

 @using (Html.BeginForm("Buy", "YourController", FormMethod.Post))
 {
     // Input for your SaleItem model
     <button class="btn btn-group btn-group-sm" type="submit">Submit</button>
 }

由于您的“购买”操作需要SaleItem模型，因此我会将其留给您。

在视图中使用sql命令和控制器

1 个答案: