model - MVC 核心表单发布返回 Null

Question

我对我的项目的表单发布操作有问题。这些是我的代码：

SiparisViewModel：

    public int? en_x { get; set; }
    public int? boy_y { get; set; }
    public int? adet_z { get; set; }

OlcuGirisi.cshtml

<div class="col-sm">
<input asp-for="en_x" class = "form-control" placeholder = "Genişlik" id = "Genislik" autocomplete = "off" BackColor = "#FFE3AA" onfocus = "onEnterGenislik()" onblur = "onLeaveGenislik()" onkeypress = "return isNumberKeyGenislik(event,this);"/>
</div>
<div class="col-sm">
<input asp-for="boy_y" class="form-control" placeholder="Yükseklik" id="Yukseklik" autocomplete="off" BackColor="#FFE3AA" onfocus="onEnterYukseklik()" onblur="onLeaveYukseklik()" onkeypress="return isNumberKeyYukseklik(event,this);" />
</div>
<div class="col-sm">
<input asp-for="adet_z" class="form-control" placeholder="Adet" id="Adet" autocomplete="off" BackColor="#FFE3AA" onfocus="onEnterAdet(); myFunction(this)" onblur="onLeaveAdet()" onkeypress="return isNumberKeyAdet(event,this);" />
</div>

但是当我发布它时，第一个输入值进入控制器，但其他输入值变为空。当我单击提交按钮时，所有输入肯定都有值，但我检查了所有内容，为什么会这样？

错误：

System.Data.SqlClient.SqlException：'参数化查询'（@siparisno int，@stokkodu nvarchar（5），@stokid int，@stokaciklamas'需要参数'@boy_y'，但未提供。'

Answer 1

这是一个关于如何将 ViewModel 传递给操作的简单演示：

视图模型：

public class SiparisViewModel
    {
        public int? en_x { get; set; }
        public int? boy_y { get; set; }
        public int? adet_z { get; set; }
    }

看法：

 @model SiparisViewModel
    <form asp-action="Index">
        <div class="col-sm">
            <input asp-for="en_x" class="form-control" placeholder="Genişlik" id="Genislik" autocomplete="off" BackColor="#FFE3AA" onfocus="onEnterGenislik()" onblur="onLeaveGenislik()" onkeypress="return isNumberKeyGenislik(event,this);" />
        </div>
        <div class="col-sm">
            <input asp-for="boy_y" class="form-control" placeholder="Yükseklik" id="Yukseklik" autocomplete="off" BackColor="#FFE3AA" onfocus="onEnterYukseklik()" onblur="onLeaveYukseklik()" onkeypress="return isNumberKeyYukseklik(event,this);" />
        </div>
        <div class="col-sm">
            <input asp-for="adet_z" class="form-control" placeholder="Adet" id="Adet" autocomplete="off" BackColor="#FFE3AA" onfocus="onEnterAdet(); myFunction(this)" onblur="onLeaveAdet()" onkeypress="return isNumberKeyAdet(event,this);" />
        </div>
        <div class="form-group">
            <input type="submit" value="Create" class="btn btn-default" />
        </div>
    </form>

控制器：

[HttpPost]
        public IActionResult Index(SiparisViewModel siparisViewModel)
        {
            return View();
        }

结果：

我建议您可以检查视图中的名称或 js 文件中的名称是否正确。这可能导致该值无法传递给操作。