asp.net-mvc 使用 CheckBoxFor
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using CheckBoxFor
提问by learning
I am having a class Role as follows;
我有一个类角色如下;
public enum Role
{
User1 = 1,
User2 = 2,
User3 = 3,
User4 = 4
}
I have the following codes in my model
我的模型中有以下代码
public Role[] UserRoles { get; set; }
User user = User.Load(1);
UserRoles = user.Roles;
My question is as follows: I want to have a checkbox for each Role and if Role == userRoles, the checkbox is true else false. How can I use @HTml.CheckboxFor...Can I have an example please.
我的问题如下：我想为每个角色设置一个复选框，如果角色 == userRoles，则该复选框为真，否则为假。我如何使用@HTml.CheckboxFor...我可以举个例子吗？
采纳答案by Rob
You're going to come unstuck with hard-coded values if you are trying to create a checkbox list based on data from a DB.
如果您尝试根据数据库中的数据创建复选框列表，您将无法使用硬编码值。
You could try something like my CheckBoxListFor<> Extension:
你可以尝试像我的 CheckBoxListFor<> 扩展：
How to create a CheckBoxListFor extension method in ASP.NET MVC?
回答by Omu
to use the CheckBoxFor you need a ViewModel with bool properties
要使用 CheckBoxFor 你需要一个带有 bool 属性的 ViewModel
public class YourVM
{
public bool[] Roles {get;set;}
}
and in the view
并且在视图中
@model YourVM
@for (int i = 0; i < Model.Roles.Count(); i++) {
@Html.CheckBoxFor(m => m.Roles[i])
}
回答by Nick Larsen
I answered this and your other question, on your other question. There is no reason to make multiple questions for the same problem, you can edit your own questions.
我在你的另一个问题上回答了这个和你的另一个问题。没有理由为同一个问题提出多个问题，您可以编辑自己的问题。
