如何使用存储库获取选定的ID

本文介绍了如何使用存储库获取选定的ID的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

大家好，我是使用Razor MVC的新手。

我有一个dropdownlist的部分视图。我已经获得了下拉列表的显示列表，但所选ID是0它应该有价值。下面是我的酸性代码：

主要观点：

Hi all, I am new using Razor MVC.

I have one partial view for dropdownlist.I already get display list for dropdownlist but for selected ID is 0. It should be have value.Below is my sourcode:

Main View:

<p>CUSTOMER INFORMATION</p>
        <table>
        <tr>
            <td><label for="customer">Customer</label></td>
            <td><div id="CustomerContainer">@Html.Action("CustomerView")</div></td>

        </tr>
        <tr>
            <td><label for="inCharge">Contact Person</label></td>
            <td><div id="InCharge">@Html.Action("CustomerDetailsView")</div></td>
        </tr>

部分视图（CustomerView）：

在此下拉列表中选择客户

Partial View(CustomerView):
Choose Customer in this dropdownlist

@Html.DropDownListFor(p=>p.SelectedCustomerID , Model.CustomerIEnum, "Select Customer", new{@id="Customer-DropdownID", @class="Customer-DropdownCls"})

<script type="text/javascript">

    $(function () {
        // Populate State/Provinces
        $('#Customer-DropdownID').change(function () {
            var selectedCustomerID = this.value;
            $('#InCharge').load('@Url.Action("CustomerDetailsView")?customerID=' + selectedCustomerID);

        });
    });
</script>

部分视图（客户详情查看）

将显示负责人。

Partial View(Customer Details View)
will Display Person In Charge.

@Html.DisplayFor(model => model.PIC)

控制器：

公共静态BusinessLogic.ViewModel.CustomerViewModel customervm = new BusinessLogic.ViewModel .CustomerViewModel（）;

Controller:

public static BusinessLogic.ViewModel.CustomerViewModel customervm = new BusinessLogic.ViewModel.CustomerViewModel();

public ActionResult CustomerDetailsView(int? customerID)
        {using (BulkMailing2015Context db = new BulkMailing2015Context(connection))
            { if (customerID != null)
                {var q = db.Customers.Select(p => p.CustomerID == customerID);
                 customervm.SelectedCustomerID.CompareTo(q);
                }
            }
                return View(customervm);
        }

CustomerViewModel：

CustomerViewModel:

public Int32 SelectedCustomerID { get; set; }
        public string PIC
        {
            get
            {
                var q = from tbl in CustomerList where tbl.CustomerID == SelectedCustomerID select tbl.InCharge;

                return q.ToString();
            }
        }

谢谢提前

Thanks in advance

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