MVC @Html.DropDownList - 默认值
我有一个在控制器中创建的列表：
var PayList = new[] {
new ListEntry { Id = 1, Name = "" },
new ListEntry { Id = 2, Name = "Yes" },
new ListEntry { Id = 3, Name = "No" }
};
ViewBag.PayList = new SelectList(PayList, "Id", "Name",2);
在视图中我有以下内容：
@Html.DropDownList("Pay", ViewBag.PayList as SelectList)
我期望上述内容默认为“是”，但没有发生（请注意，我在 ViewBag.PayList 中传递了 2。
I have a list which I created in the controller:
var PayList = new[] {
new ListEntry { Id = 1, Name = "" },
new ListEntry { Id = 2, Name = "Yes" },
new ListEntry { Id = 3, Name = "No" }
};
ViewBag.PayList = new SelectList(PayList, "Id", "Name",2);
In the View I have the following:
@Html.DropDownList("Pay", ViewBag.PayList as SelectList)
I was expecting the above to default to Yes but did not happen(Note that I am passing 2 in the ViewBag.PayList.
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代码是健全的，但我认为为了使控制器的范围与您的视图适当地通信，您需要执行以下操作：
实际上......这是一篇好文章：dropdownlist 在 MVC3 Razor 中设置选定值
不要使用 ViewBag...熟悉创建 ViewModel。
The code is sound, but I think in order for the scope of the controller to appropriately communicate with your view, you need to do the:
Actually... here's a good article: dropdownlist set selected value in MVC3 Razor
Don't use the ViewBag... get familiar with creating ViewModels.