My view page like this;
我的浏览页面是这样的;
@model IEnumerable<Project.ViewModels.ViewModel>
@using Helpers
@foreach (var item in Model)
{
@Html.MyCustomHtmlHelper("test")
}
My custom HtmlHelper like this;
我的自定义HtmlHelper是这样的;
public static MvcHtmlString MyCustomHtmlHelper(this HtmlHelper helper, string TestValue)
{
var builder = new StringBuilder();
builder.Append(TestValue);
return MvcHtmlString.Create(builder.ToString());
}
It works with @model Project.ViewModels.ViewModel but not @model IEnumerable<Project.ViewModels.ViewModel>
它适用于@model Project.ViewModels.ViewModel但不适用于@model IEnumerable
My error;
我的错误;
1 个解决方案
#1
1
The code you have shown in your question:
您在问题中显示的代码：
@foreach (var item in Model)
{
@Html.MyCustomHtmlHelper("test")
}
doesn't correspond to the code shown in the YSOD:
与YSOD中显示的代码不对应：
<td>
@Html.MyCustomHtmlHelper(TestValue)
</td>
It looks like in your real code (which you haven't shown us), you have used some TestValue variable. Unfortunately it's pretty hard to know how/where/of what type is this variable declared but if it is not a string it is more than obvious that your custom helper won't work for the simple reason that this helper expects a string parameter.
它看起来像你的真实代码（你没有向我们展示），你已经使用了一些TestValue变量。不幸的是，很难知道这个变量声明的类型/地点/类型，但如果它不是一个字符串，那么你的自定义帮助器不会起作用，原因很简单，因为这个帮助器需要一个字符串参数。
#1
1
The code you have shown in your question:
您在问题中显示的代码：
@foreach (var item in Model)
{
@Html.MyCustomHtmlHelper("test")
}
doesn't correspond to the code shown in the YSOD:
与YSOD中显示的代码不对应：
<td>
@Html.MyCustomHtmlHelper(TestValue)
</td>
It looks like in your real code (which you haven't shown us), you have used some TestValue variable. Unfortunately it's pretty hard to know how/where/of what type is this variable declared but if it is not a string it is more than obvious that your custom helper won't work for the simple reason that this helper expects a string parameter.
它看起来像你的真实代码（你没有向我们展示），你已经使用了一些TestValue变量。不幸的是，很难知道这个变量声明的类型/地点/类型，但如果它不是一个字符串，那么你的自定义帮助器不会起作用，原因很简单，因为这个帮助器需要一个字符串参数。