This repository was archived by the owner on Dec 14, 2018. It is now read-only.
This repository was archived by the owner on Dec 14, 2018. It is now read-only.
Page is missing some APIs that Razor calls #5920
Description
Typing in this code will result in the following compiler error:
@page
<h2><a asp-route-page="Show" asp-route-id="@post.Id">@post.Title</a></h2>
post.Id is an int
The name 'InvalidTagHelperIndexerAssignment' does not exist in the current context'
This is happening because Razor tries to generate a call to the InvalidTagHelperIndexerAssignment method to throw an exception if the route values aren't set.
It doesn't happen with asp-route-page because the optimizer preallocates it.
Generated code:
#pragma checksum "/Pages/Index.cshtml" "{ff1816ec-aa5e-4d10-87f7-6f4963833460}" "3b1862329315e3e3a822c78cbcef8e944fc7cc65"
namespace AspNetCore
{
#line hidden
using System;
using System.Threading.Tasks;
#line 2 ""
using System.Linq;
#line default
#line hidden
#line 3 ""
using System.Collections.Generic;
#line default
#line hidden
#line 4 ""
using Microsoft.AspNetCore.Mvc;
#line default
#line hidden
#line 5 ""
using Microsoft.AspNetCore.Mvc.Rendering;
#line default
#line hidden
#line 6 ""
using Microsoft.AspNetCore.Mvc.ViewFeatures;
#line default
#line hidden
#line 1 "/Pages/Index.cshtml"
using PagesBlog;
#line default
#line hidden
#line 2 "/Pages/Index.cshtml"
using PagesBlog.Models;
#line default
#line hidden
public class _Pages_Index_cshtml : global::Microsoft.AspNetCore.Mvc.RazorPages.Page
{
private static readonly global::Microsoft.AspNetCore.Razor.TagHelpers.TagHelperAttribute __tagHelperAttribute_0 = new global::Microsoft.AspNetCore.Razor.TagHelpers.TagHelperAttribute("asp-route-page", "Show", global::Microsoft.AspNetCore.Razor.TagHelpers.HtmlAttributeValueStyle.DoubleQuotes);
#line hidden
#pragma warning disable 0414
private string __tagHelperStringValueBuffer = null;
#pragma warning restore 0414
private global::Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperExecutionContext __tagHelperExecutionContext = null;
private global::Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperRunner __tagHelperRunner = new global::Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperRunner();
private global::Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperScopeManager __backed__tagHelperScopeManager = null;
private global::Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperScopeManager __tagHelperScopeManager
{
get
{
if (__backed__tagHelperScopeManager == null)
{
__backed__tagHelperScopeManager = new Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperScopeManager(StartTagHelperWritingScope, EndTagHelperWritingScope);
}
return __backed__tagHelperScopeManager;
}
}
private global::Microsoft.AspNetCore.Mvc.TagHelpers.AnchorTagHelper __Microsoft_AspNetCore_Mvc_TagHelpers_AnchorTagHelper = null;
#pragma warning disable 1998
public async override global::System.Threading.Tasks.Task ExecuteAsync()
{
BeginContext(7, 2, true);
WriteLiteral("\r\n");
EndContext();
BeginContext(88, 2, true);
WriteLiteral("\r\n");
EndContext();
#line 7 "/Pages/Index.cshtml"
var posts = DbContext.Posts.ToArray();
#line default
#line hidden
BeginContext(180, 2, true);
WriteLiteral("\r\n");
EndContext();
BeginContext(493, 72, true);
WriteLiteral("\r\n<div class=\"row\">\r\n\r\n <p>Welcome to my blog!</p>\r\n <p>There are ");
EndContext();
BeginContext(566, 12, false);
#line 27 "/Pages/Index.cshtml"
Write(posts.Length);
#line default
#line hidden
EndContext();
BeginContext(578, 14, true);
WriteLiteral(" posts</p>\r\n\r\n");
EndContext();
#line 29 "/Pages/Index.cshtml"
for (var i = 0; i < posts.Length; i++)
{
var post = posts[i];
#line default
#line hidden
BeginContext(676, 35, true);
WriteLiteral(" <article>\r\n <h2>");
EndContext();
__tagHelperExecutionContext = __tagHelperScopeManager.Begin("a", global::Microsoft.AspNetCore.Razor.TagHelpers.TagMode.StartTagAndEndTag, "6d374b9034664211887f9dec2fb8d699", async() => {
BeginContext(772, 10, false);
#line 34 "/Pages/Index.cshtml"
Write(post.Title);
#line default
#line hidden
EndContext();
}
);
__Microsoft_AspNetCore_Mvc_TagHelpers_AnchorTagHelper = CreateTagHelper<global::Microsoft.AspNetCore.Mvc.TagHelpers.AnchorTagHelper>();
__tagHelperExecutionContext.Add(__Microsoft_AspNetCore_Mvc_TagHelpers_AnchorTagHelper);
__Microsoft_AspNetCore_Mvc_TagHelpers_AnchorTagHelper.RouteValues["page"] = (string)__tagHelperAttribute_0.Value;
__tagHelperExecutionContext.AddTagHelperAttribute(__tagHelperAttribute_0);
if (__Microsoft_AspNetCore_Mvc_TagHelpers_AnchorTagHelper.RouteValues == null)
{
throw new InvalidOperationException(InvalidTagHelperIndexerAssignment("asp-route-id", "Microsoft.AspNetCore.Mvc.TagHelpers.AnchorTagHelper", "RouteValues"));
}
BeginWriteTagHelperAttribute();
#line 34 "/Pages/Index.cshtml"
WriteLiteral(post.Id.ToString());
#line default
#line hidden
__tagHelperStringValueBuffer = EndWriteTagHelperAttribute();
__Microsoft_AspNetCore_Mvc_TagHelpers_AnchorTagHelper.RouteValues["id"] = __tagHelperStringValueBuffer;
__tagHelperExecutionContext.AddTagHelperAttribute("asp-route-id", __Microsoft_AspNetCore_Mvc_TagHelpers_AnchorTagHelper.RouteValues["id"], global::Microsoft.AspNetCore.Razor.TagHelpers.HtmlAttributeValueStyle.DoubleQuotes);
BeginContext(711, 75, false);
await __tagHelperRunner.RunAsync(__tagHelperExecutionContext);
if (!__tagHelperExecutionContext.Output.IsContentModified)
{
await __tagHelperExecutionContext.SetOutputContentAsync();
}
Write(__tagHelperExecutionContext.Output);
__tagHelperExecutionContext = __tagHelperScopeManager.End();
EndContext();
BeginContext(786, 22, true);
WriteLiteral("</h2>\r\n <p>");
EndContext();
BeginContext(809, 20, false);
#line 35 "/Pages/Index.cshtml"
Write(Summarize(post.Text));
#line default
#line hidden
EndContext();
BeginContext(829, 26, true);
WriteLiteral("</p>\r\n </article>\r\n");
EndContext();
#line 37 "/Pages/Index.cshtml"
}
#line default
#line hidden
BeginContext(862, 10, true);
WriteLiteral("\r\n</div>\r\n");
EndContext();
}
#pragma warning restore 1998
#line 11 "/Pages/Index.cshtml"
public string Summarize(string text, int length = 50)
{
if (text.Length <= length)
{
return text;
}
var position = text.LastIndexOf(' ', length - 1);
return text.Substring(position == -1 ? length : position) + "...";
}
#line default
#line hidden
[global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
public ApplicationContext DbContext { get; private set; }
[global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
public Microsoft.AspNetCore.Mvc.ViewFeatures.IModelExpressionProvider ModelExpressionProvider { get; private set; }
[global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
public Microsoft.AspNetCore.Mvc.IUrlHelper Url { get; private set; }
[global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
public Microsoft.AspNetCore.Mvc.IViewComponentHelper Component { get; private set; }
[global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
public Microsoft.AspNetCore.Mvc.Rendering.IJsonHelper Json { get; private set; }
[global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
public Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<_Pages_Index_cshtml> Html { get; private set; }
public global::Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary<_Pages_Index_cshtml> ViewData => (global::Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary<_Pages_Index_cshtml>)PageContext?.ViewData;
public _Pages_Index_cshtml Model => ViewData.Model;
}
}