asp.net-mvc 在 ascx 文件中使用 Html.RenderPartial()
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Using Html.RenderPartial() in ascx files
提问by takayoshi
I'm trying to use Html.RenderPartial in acsx file and I'm getting an error:
我正在尝试在 acsx 文件中使用 Html.RenderPartial，但出现错误：
Compiler Error Message: CS1973: 'System.Web.Mvc.HtmlHelper' has no applicable method named 'RenderPartial' but appears to have an extension method by that name. Extension methods cannot be dynamically dispatched. Consider casting the dynamic arguments or calling the extension method without the extension method syntax
编译器错误消息：CS1973：“System.Web.Mvc.HtmlHelper”没有名为“RenderPartial”的适用方法，但似乎具有该名称的扩展方法。扩展方法不能动态调度。考虑转换动态参数或调用没有扩展方法语法的扩展方法
<a href="/projects/<%=project.Id %>">
<% Html.Label("fdf"); %>
<% Html.RenderPartial("ProjectName", Model.Id); %></a></li>
<%} %>
However I've import neccessary namespaces, so it won't be error at
但是我已经导入了必要的命名空间，所以它不会出错
<% Html.Label("fdf"); %>
Are there any methods to use Html.RenderPartial in ascx file?
是否有任何方法可以在 ascx 文件中使用 Html.RenderPartial？
回答by GvS
The compiler cannot choose the correct method because your Model is dynamic. Change the call to:
编译器无法选择正确的方法，因为您的模型是dynamic. 将调用更改为：
<% Html.RenderPartial("ProjectName", (int)(Model.Id)); %>
Or any other datatype Id is.
或者任何其他数据类型 Id 是。
回答by StuartQ
In case anyone else made the same mistake I did:
万一其他人犯了和我一样的错误：
@Model MyViewModel
This will treat your model as dynamic
这会将您的模型视为动态
@model MyViewModel
This is a correctly strongly typed view. Note the lack of capitalisation!
这是一个正确的强类型视图。请注意缺少大写！
Note, that this is Razor, unlike the original question.
请注意，与原始问题不同，这是 Razor。
回答by Muckman
The only way i found to pass eg. an IEnumerable was to create a local variable and pass in this one.
For Example
@{
IEnumerable<Demo.Models.Friend> friends = Model.Friends;
Html.RenderPartial("_FriendsList", friends);
}
我发现通过的唯一方法，例如。一个 IEnumerable 是创建一个局部变量并传入这个变量。例如
@{
IEnumerable<Demo.Models.Friend> friends = Model.Friends;
Html.RenderPartial("_FriendsList", friends);
}
Html.RenderPartial("_FriendsList", (IEnumerable<Demo.Models.Friends>)(Model.Friends));did not work!
Html.RenderPartial("_FriendsList", (IEnumerable<Demo.Models.Friends>)(Model.Friends));不工作！
