帖子底部的解决方案
几天来,我一直在努力通过 Kendo.UI 网格查看我的数据, 我想我不了解如何做的一些基本概念,因为我是 aspnet 和所有这些东西的新手。
索引.cshtml:
@using Kendo.Mvc.UI
@using System.Linq;
@(Html.Kendo().Grid<CardsDemo.Models.CardsViewModel>()
.Name("Grid")
.Columns(columns =>
{
columns.Bound(p => p.Name).Title("Card ID").Width(130);
columns.Bound(p => p.State).Title("State").Width(130);
columns.Bound(p => p.ExpirationDate).Title("Expiration Date").Width(130);
})
.Pageable()
.Sortable()
.Scrollable(scr => scr.Height(430))
.Filterable()
.DataSource(dataSource => dataSource
.Ajax()
.PageSize(20)
.ServerOperation(false)
.Read(read => read.Action("GetCards", "Home"))
).Render()
)
家庭 Controller .cs:
...
[HttpGet]
public ActionResult Index()
{
return View();
}
[HttpPost]
public JsonResult GetCards([DataSourceRequest] DataSourceRequest request)
{
var cards = repository.GetAll();
var cardsvm = new CardsViewModel(cards);
return Json(cardsvm.GetCards.ToDataSourceResult(request), JsonRequestBehavior.AllowGet);
}
...
项目构建没有错误,但是网页显示:
Server Error in '/' Application.
Compilation Error
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.
Compiler Error Message: CS1660: Cannot convert lambda expression to type 'string' because it is not a delegate type
Source Error:
Line 8: .Columns(columns =>
Line 9: {
Line 10: columns.Bound(p => p.Name).Title("Card ID").Width(130);
Line 11: columns.Bound(p => p.State).Title("State").Width(130);
Line 12: columns.Bound(p => p.ExpirationDate).Title("Expiration Date").Width(130);
Source File: c:\Users\me\Documents\Visual Studio 2013\Projects\CardsDemo\Views\Home\Index.cshtml Line: 10
编辑:按照建议,我尝试放置断点并认为程序在索引结束后立即崩溃(包括 homeControllers 索引操作代码);
EDIT2:@clement layout.cshtml 中的 Kendo() 用红色下划线表示
Error 3 'System.Web.WebPages.Html.HtmlHelper' does not contain a definition for 'Kendo' and no extension method 'Kendo' accepting a first argument of type 'System.Web.WebPages.Html.HtmlHelper' could be found (are you missing a using directive or an assembly reference?) c:\Users\me\Documents\Visual Studio 2013\Projects\CardsDemo\Views\Home\Index.cshtml 3 12 CardsDemo
不过我认为这是一个与 Visual Studio 相关的错误,它也与 IntelliSense 在 cshtml 文件中无法正常工作有关。 我的同事说他们的项目中也有这个,但他们只是忽略它,而且它起作用了。
解决方案:因此,如果您将 Index.cshtml 更改为:
@model ICollection<CardsDemo.Models.CardViewModel>
@(Html.Kendo().Grid(Model)
.Name("Grid")
.Columns(columns =>
{
columns.Bound(p => p.Name);
columns.Bound(p => p.State);
columns.Bound(p => p.ExpirationDate);
})
.Pageable()
.Sortable()
.Scrollable(scr => scr.Height(430))
.Filterable()
.DataSource(dataSource => dataSource
.Ajax()
.PageSize(20)
.Read(read => read.Action("GetCards", "Home"))
)
)
最佳答案
看起来您在使用 Linq 时没有将 System.Linq 嵌入到 View 中。
编辑: 您能否将断点放入 View / Controller 并确保您发送给 View 的“名称”属性是一个字符串?
关于c# - ASP.NET,剑道用户界面,CS1660 : Cannot convert lambda expression to type 'string' ,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/27357779/