質問編集履歴
4
文の修正
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@@ -330,7 +330,7 @@
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[ValidateAntiForgeryToken]
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public async Task<IActionResult> Create([Bind("Id,
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public async Task<IActionResult> Create([Bind("Id, hoge")] hogeList hogeList)
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{
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[ValidateAntiForgeryToken]
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public async Task<IActionResult> Edit(int id, [Bind("Id,
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public async Task<IActionResult> Edit(int id, [Bind("Id, hoge")] hogeList hogeList)
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{
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3
ソースコード、エラーの追加
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test
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@@ -216,6 +216,328 @@
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hogeListのView及びControllerはScaffoldingで作成しました。
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```Controller
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Mvc.Rendering;
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using Microsoft.EntityFrameworkCore;
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using DBAccessSample.Data;
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using DBAccessSample.Models;
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namespace DBAccessSample.Controllers
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{
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public class hogeListsController : Controller
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{
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private readonly MyDbContext _context;
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public hogeListsController(MyDbContext context)
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{
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_context = context;
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}
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// GET: hogeLists
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public async Task<IActionResult> Index()
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{
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return View(await _context.hogeLists.ToListAsync());
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}
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// GET: hogeLists/Details/5
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public async Task<IActionResult> Details(int? id)
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{
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if (id == null)
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{
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return NotFound();
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}
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var hogeList = await _context.hogeLists
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.FirstOrDefaultAsync(m => m.Id == id);
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if (hogeList == null)
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{
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return NotFound();
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}
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return View(hogeList);
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}
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// GET: hogeLists/Create
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public IActionResult Create()
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{
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return View();
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}
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// POST: hogeLists/Create
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// To protect from overposting attacks, please enable the specific properties you want to bind to, for
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// more details see http://go.microsoft.com/fwlink/?LinkId=317598.
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[HttpPost]
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[ValidateAntiForgeryToken]
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public async Task<IActionResult> Create([Bind("Id,ReqFuncID,ReqFuncBigSep,ReqFuncMidSep,ReqFuncName")] hogeList hogeList)
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{
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if (ModelState.IsValid)
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{
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_context.Add(hogeList);
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await _context.SaveChangesAsync();
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return RedirectToAction(nameof(Index));
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}
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return View(hogeList);
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}
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// GET: hogeLists/Edit/5
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public async Task<IActionResult> Edit(int? id)
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{
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if (id == null)
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{
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return NotFound();
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}
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var hogeList = await _context.hogeLists.FindAsync(id);
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if (hogeList == null)
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{
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return NotFound();
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379
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}
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380
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return View(hogeList);
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}
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// POST: hogeLists/Edit/5
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// To protect from overposting attacks, please enable the specific properties you want to bind to, for
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390
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// more details see http://go.microsoft.com/fwlink/?LinkId=317598.
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[HttpPost]
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395
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[ValidateAntiForgeryToken]
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396
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397
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public async Task<IActionResult> Edit(int id, [Bind("Id,ReqFuncID,ReqFuncBigSep,ReqFuncMidSep,ReqFuncName")] hogeList hogeList)
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398
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399
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{
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400
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401
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if (id != hogeList.Id)
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402
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403
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{
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404
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405
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return NotFound();
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406
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407
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}
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408
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409
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410
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411
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if (ModelState.IsValid)
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412
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413
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+
{
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414
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+
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415
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+
try
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416
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417
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{
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418
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419
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+
_context.Update(hogeList);
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420
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421
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+
await _context.SaveChangesAsync();
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422
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+
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423
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+
}
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424
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+
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425
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+
catch (DbUpdateConcurrencyException)
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426
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427
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+
{
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428
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+
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429
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+
if (!hogeListExists(hogeList.Id))
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430
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+
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431
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+
{
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432
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+
|
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433
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+
return NotFound();
|
|
434
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+
|
|
435
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+
}
|
|
436
|
+
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437
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+
else
|
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438
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+
|
|
439
|
+
{
|
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440
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+
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|
441
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+
throw;
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442
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+
|
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443
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+
}
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444
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+
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445
|
+
}
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446
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+
|
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447
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+
return RedirectToAction(nameof(Index));
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448
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+
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449
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+
}
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450
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+
|
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451
|
+
return View(hogeList);
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452
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+
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453
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+
}
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454
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+
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455
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+
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456
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+
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457
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+
// GET: hogeLists/Delete/5
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458
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+
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459
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+
public async Task<IActionResult> Delete(int? id)
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460
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+
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461
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+
{
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462
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+
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463
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+
if (id == null)
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464
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+
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465
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+
{
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466
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+
|
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467
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+
return NotFound();
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468
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+
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469
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+
}
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470
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+
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471
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+
|
|
472
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+
|
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473
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+
var hogeList = await _context.hogeLists
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474
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+
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475
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+
.FirstOrDefaultAsync(m => m.Id == id);
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476
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+
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477
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+
if (hogeList == null)
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478
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+
|
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479
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+
{
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480
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+
|
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481
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+
return NotFound();
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482
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+
|
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483
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+
}
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484
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+
|
|
485
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+
|
|
486
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+
|
|
487
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+
return View(hogeList);
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488
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+
|
|
489
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+
}
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|
490
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+
|
|
491
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+
|
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492
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+
|
|
493
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+
// POST: hogeLists/Delete/5
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494
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+
|
|
495
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+
[HttpPost, ActionName("Delete")]
|
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496
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+
|
|
497
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+
[ValidateAntiForgeryToken]
|
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498
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+
|
|
499
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+
public async Task<IActionResult> DeleteConfirmed(int id)
|
|
500
|
+
|
|
501
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+
{
|
|
502
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+
|
|
503
|
+
var hogeList = await _context.hogeLists.FindAsync(id);
|
|
504
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+
|
|
505
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+
_context.hogeLists.Remove(hogeList);
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|
506
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+
|
|
507
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+
await _context.SaveChangesAsync();
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|
508
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+
|
|
509
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+
return RedirectToAction(nameof(Index));
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|
510
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+
|
|
511
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+
}
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|
512
|
+
|
|
513
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+
|
|
514
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+
|
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515
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+
private bool hogeListExists(int id)
|
|
516
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+
|
|
517
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+
{
|
|
518
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+
|
|
519
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+
return _context.hogeLists.Any(e => e.Id == id);
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520
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+
|
|
521
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+
}
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|
522
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+
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|
523
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+
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524
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+
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525
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/////////////////////////////////////////////////
|
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526
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+
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527
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+
|
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528
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+
|
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529
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+
|
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530
|
+
|
|
531
|
+
|
|
532
|
+
|
|
533
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+
}
|
|
534
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+
|
|
535
|
+
}
|
|
536
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+
|
|
537
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+
|
|
538
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+
|
|
539
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+
```
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|
540
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+
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219
541
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220
542
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221
543
|
###エラー内容
|
|
@@ -228,7 +550,11 @@
|
|
|
228
550
|
|
|
229
551
|
と出て、ViewModelのIdについて言及されます。
|
|
230
552
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|
231
|
-
しかしViewModelのIdを消すと
|
|
553
|
+
しかしViewModelのIdを消すと
|
|
554
|
+
|
|
555
|
+
InvalidOperationException: The entity type 'HogeViewModel' requires a primary key to be defined.
|
|
556
|
+
|
|
557
|
+
というエラーが出ます。
|
|
232
558
|
|
|
233
559
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|
234
560
|
|
2
文の修正
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -4,7 +4,7 @@
|
|
|
4
4
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|
|
5
5
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|
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6
6
|
|
|
7
|
-
Windows10 ASP.NET Core 2.2において、元々ModelとViewが1対1対応でページを作成していたのですが、ViewModelを用いて複数のModelを1つのViewに表示出来る
|
|
7
|
+
Windows10 ASP.NET Core 2.2において、元々ModelとViewが1対1対応でページを作成していたのですが、ViewModelを用いて複数のModelを1つのViewに表示出来るページを作成すると、元となっている複数のModelのうちの１つのみを参照するページが表示出来なくなりました。
|
|
8
8
|
|
|
9
9
|
何故そうなったのか理由も含めて教えていただけると助かります。
|
|
10
10
|
|
1
タグの追加, リンクの更新
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -248,11 +248,9 @@
|
|
|
248
248
|
|
|
249
249
|
https://teratail.com/questions/74013
|
|
250
250
|
|
|
251
|
-
http://kuttsun.blogspot.com/2018/03/mvc-viewmodel.html
|
|
251
|
+
[http://kuttsun.blogspot.com/2018/03/mvc-viewmodel.html](http://kuttsun.blogspot.com/2018/03/mvc-viewmodel.html)
|
|
252
|
-
|
|
252
|
+
|
|
253
|
-
https://qiita.com/KktkiY/items/f28528916e97310262e0
|
|
253
|
+
[https://qiita.com/KktkiY/items/f28528916e97310262e0](https://qiita.com/KktkiY/items/f28528916e97310262e0)
|
|
254
|
-
|
|
255
|
-
|
|
256
254
|
|
|
257
255
|
### 補足情報（FW/ツールのバージョンなど）
|
|
258
256
|
|