下拉编辑（）[剃刀]查看，pre-装有数据从型号 [英] DropDown for Edit() [Razor]View, Pre-Loaded with Data from Model

问题描述

我在我的Create（）查看下拉式菜单中的工作完美。

I have the dropdowns in my Create() View working perfect.

但在编辑（）查看我不能得到这是在submited数据的Create（）的下拉菜单显示了在创建（enterened值）

But in the Edit() View I can't get the Data that was submited during the Create() to show up in DropDowns with the Value enterened upon Create()

我只是此刻到位textboxs而且真的很想有方便选择下拉数据重新presented。

I just have textboxs in place at the moment And would really like to have Data Represented in a dropdown for easy selection.

这里有一个例子：

创建（）查看 - 一个下拉菜单是EmployeeTypes，并选择了EmployeeTypeId商店

Create() View - One dropdown is for EmployeeTypes, and stores selected to EmployeeTypeId

现在我如何得到这在Edit（）查看该下拉菜单显示出来，但与雇员的价值已被选中？

Now How do I get that to show up in the Edit() View as the same dropdown, but with Value of EmployeeId already selected?

我对创建（）查看一个EmployeeViewModel

I have a EmployeeViewModel for the Create() View

但我只是直接传递模型到编辑（）查看

But I am just passing the model directly into the Edit() View

我应该创建某种雇员部分类为编辑（）查看？处理IEnumerable的名单？

Should I create some kind of Employee "partial class" for the Edit() View? to handle the IEnumerable Lists?

和设置：

var employeeTypes = context.EmployeeTypes.Select(et => new SelectListItem
            {
                Value = et.EmployeeTypeId.ToString(),
                Text = et.Type.ToString()
            });

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或者我应该通过他们作为ViewData的？

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Or should I pass them in as ViewData?

如果这样你该怎么办作为ViewData的传递一个列表，并把它显示为@ Html.DropDownList与价值从@Model传递作为defualt价值？

If so how to do you pass a List in as ViewData and get it to display as an @Html.DropDownList with the Value passed in from the @Model as the defualt value?

推荐答案

我结束了implimenting这种方式，和它的工作就像一个梦。

I ended up implimenting this way, and it worked like a dream.

控制器code：

 SelectList typelist = new SelectList(context.CompanyType.ToList(), "CompanyTypeId", "Type", context.CompanyType);
            ViewData["CompanyTypes"] = typelist;

查看code：

@Html.DropDownList("CompanyTypeId", (IEnumerable<SelectListItem>) ViewData["CompanyTypes"])

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