asp.net – .net MVC将linq数据从控制器传递到视图

var yyy =(来自Connection.Db.Authorities中的a选择a.Value);至

var yyy = (from a in Connection.Db.Authorities select a);

或者将视图更改为

@foreach(var item in ViewBag.data)
{
    @item
}

////////////////////////////////////////////////编辑/ ///////////////////////////////////////////////
比你不应该使用匿名对象.您应该创建ViewModelClass.例如：

public class AuthoritiesViewModel
        {
            public string Value { get; set; }
            public string TypeCode { get; set; }
            public string Return { get; set; }
        }

并更改您的控制器：

var yyy = (from a in Connection.Db.Authorities select new AuthoritiesViewModel{ Value = a.Value,Return = Calculate(a.Return)});
ViewBag.data = yyy;

在您的视图中,您将能够使用：

<table>
    <tr>
         <th>Value</th>
         <th>TypeCode</th>
         <th>Return</th>
    </tr>
@foreach(AuthoritiesViewModel item in ViewBag.data)
{
    <tr>
         <td>@item.Value<td>
         <td>@item.TypeCode<td>
         <td>@item.Return<td>
    </tr>
}
</table>

另外,我有一个问题要问你.为什么使用ViewBag将数据从控制器传递到视图？为什么不根据MVC模式使用Model传递这些数据？

////////////////////////////////////////////////更多编辑////////////////////////////////////////////////
发送多个查询结果您可以创建更复杂的模型.例如：

public class AuthoritiesViewModel
        {
            public string Value { get; set; }
            public string TypeCode { get; set; }
            public string Return { get; set; }
        }

        public class AnotherQueryViewModel
        {
            public string AnotherQueryValue { get; set; }
            public string AnotherQueryTypeCode { get; set; }
            public string AnotherQueryReturn { get; set; }
        }

        public class ModelClass
        {
            IEnumerable<AuthoritiesViewModel> Authorities { get; set; }
            IEnumerable<AnotherQueryViewModel> AnotherQueryResults { get; set; }
        }

并更改控制器：

var yyy = (from a in Connection.Db.Authorities select new AuthoritiesViewModel{ Value = a.Value,Return = Calculate(a.Return)});

// do your another select
var zzz = (from smthing select new AnotherQueryViewModel ...)

// create model instance
ModelClass model = new ModelClass() 
{
    Authorities = yyy.AsEnumerable(),AnotherQueryResults = zzz..AsEnumerable()
}

// return view with model
return View("view",model);

在视图中你可以使用：

@model ModelClass

@*display first query result*@
<table>
    <tr>
         <th>Value</th>
         <th>TypeCode</th>
         <th>Return</th>
    </tr>
@foreach(AuthoritiesViewModel item in Model.Authorities)
{
    <tr>
         <td>@item.Value<td>
         <td>@item.TypeCode<td>
         <td>@item.Return<td>
    </tr>
}
</table>

@*display second query result*@
<table>
    <tr>
         <th>Another Query Value</th>
         <th>Another Query TypeCode</th>
         <th>Another Query Return</th>
    </tr>
@foreach(AnotherQueryViewModel item in Model.AnotherQueryResults)
{
    <tr>
         <td>@item.AnotherQueryValue<td>
         <td>@item.AnotherQueryTypeCode<td>
         <td>@item.AnotherQueryReturn<td>
    </tr>
}
</table>