网页视图给列不存在错误

MVC 3
VB.NET和
剃刀视图引擎。

我在我的应用程序中玩弄WebGrid，它告诉我“failEmList”不存在。

以下是调用函数，视图以及它从中获取数据的模型部分的代码。

FailEmailSends只是一个List（的字符串），并且具有包含单个邮件地址条目的行。

Dim vm As New MassEmailVM 
    For Each _fail In failEmailSends 
     vm.failEmList.Add(_fail) 
    Next 
    ViewBag.succCount = succCount.ToString 
    ViewBag.failECount = failEmailCount.ToString 
    Return View(vm)

查看如下：

@Modeltype xxxxxxxxxxxxx 
@Code 
ViewData("Title") = "Mass Emails Sent" 

End Code 


<table> 
<tr><th>Total Sent</th><td>@ViewBag.succCount</td></tr> 
<tr><th>Total Fail</th><td>@ViewBag.failECount</td></tr> 
<tr><th>Fail Email Addresses</th></tr> 
</table> 

@code 
Dim grid = New WebGrid(Model.failEmList) 

End Code 


<div id="grid"> 
@grid.GetHtml(
tableStyle:="grid", 
headerStyle:="head", 
alternatingRowStyle:="alt", 
columns:=grid.Columns(
    grid.Column("failEmList", "Email List") 
    )) 
</div>

视图模型的

相关部分：

Private _failEmList As New List(Of String) 
Public Property failEmList() As List(Of String) 
    Get 
     Return _failEmList 
    End Get 
    Set(ByVal value As List(Of String)) 
     _failEmList = value 
    End Set 
End Property

任何想法，为什么这是抛出以下错误：

System.InvalidOperationException was unhandled by user code 
    Message=Column "failEmList" does not exist. 
    Source=System.Web.Helpers 
    StackTrace: 
    at System.Web.Helpers.WebGridRow.get_Item(String name) 
    at System.Web.Helpers.WebGrid.GetTableBodyHtml(IEnumerable`1 columns, String rowStyle, String alternatingRowStyle, String selectedRowStyle) 
    at System.Web.Helpers.WebGrid.Table(String tableStyle, String headerStyle, String footerStyle, String rowStyle, String alternatingRowStyle, String selectedRowStyle, String caption, Boolean displayHeader, Boolean fillEmptyRows, String emptyRowCellValue, IEnumerable`1 columns, IEnumerable`1 exclusions, Func`2 footer, Object htmlAttributes) 
    at System.Web.Helpers.WebGrid.GetHtml(String tableStyle, String headerStyle, String footerStyle, String rowStyle, String alternatingRowStyle, String selectedRowStyle, String caption, Boolean displayHeader, Boolean fillEmptyRows, String emptyRowCellValue, IEnumerable`1 columns, IEnumerable`1 exclusions, WebGridPagerModes mode, String firstText, String previousText, String nextText, String lastText, Int32 numericLinksCount, Object htmlAttributes) 
    at ASP._Page_Views_Admin_MassEmailsSent_vbhtml.Execute() in C:\Users\Skindeep\Documents\Visual Studio 2010\Projects\xxxxxxxxxx\Views\Admin\MassEmailsSent.vbhtml:line 21 
    at System.Web.WebPages.WebPageBase.ExecutePageHierarchy() 
    at System.Web.Mvc.WebViewPage.ExecutePageHierarchy() 
    at System.Web.WebPages.StartPage.RunPage() 
    at System.Web.WebPages.StartPage.ExecutePageHierarchy() 
    at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) 
    at System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance) 
    at System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer) 
    at System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) 
    at System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult) 
    at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass1c.<InvokeActionResultWithFilters>b__19() 
    at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) 
    InnerException:

来源

2012-08-07 Skindeep2366

你可以尝试以下方法：

@Code 
    Dim grid = New WebGrid(Model.failEmList) 
End Code 

<div id="grid"> 
    @grid.GetHtml(
     tableStyle:= "grid", 
     headerStyle:= "head", 
     alternatingRowStyle:= "alt", 
     columns:= grid.Columns(
      grid.Column(format:= Function(item) item, header:= "Email List") 
     ) 
    ) 
</div>

来源

2012-08-07 05:37:36

非常感谢不知道为什么我看起来需要简单地使用表达式... – Skindeep2366 2012-08-07 18:34:56

尝试这

@grid.GetHtml(
columns: new[] { 
    grid.Column(format: (item) => item) 
} 
)

来源

2012-08-07 05:26:26 Yasser

在情况下，它可以帮助别人，在我的情况下，我做了一个复制/粘贴错误，并宣布网格时忘了更改源！一旦我用上面的建议纠正了第一列，第二列抛出了相同的错误。

Dim grid = New WebGrid(Model.WasTheWrongNameHere)

来源

2016-02-22 19:59:31 Sandra

网页视图给列不存在错误

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