[B! Entity Framework] Arahabicaã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

Arahabica id:Arahabica

Entity Frameworkã«é–¢ã™ã‚‹Arahabicaã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (16)

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[Entity Framework] SQL ã‚’ç›´æŽ¥å®Ÿè¡Œã™ã‚‹: ã‚ã‚‹ SE ã®ã¤ã¶ã‚„ã
Entity Framework ã¯æ¦‚å¿µãƒ¢ãƒ‡ãƒ«ãŒãƒ™ãƒ¼ã‚¹ã«ãªã£ã¦ã„ã‚‹ã®ã§ã€åŸºæœ¬ã¯æ¦‚å¿µãƒ¢ãƒ‡ãƒ«ã«å¯¾ã—ã¦æ“ä½œã‚’è¡Œã†ã¹ããªã®ã§ã™ãŒã€å‡¦ç†ãŒè¤‡é›‘ã™ãŽã¦ç›´æŽ¥ SQL ã‚’å®Ÿè¡Œã›ã–ã‚‹ã‚’å¾—ãªã„å ´åˆã‚‚ã‚ã‚‹ã‹ã¨æ€ã„ã¾ã™ã€‚ ã“ã®ã‚¨ãƒ³ãƒˆãƒªãƒ¼ã§ã¯ã€Entity Framework ã§ SQL ã‚’ç›´æŽ¥å®Ÿè¡Œã™ã‚‹æ–¹æ³•ã‚’ã”ç´¹ä»‹ã—ã¾ã™ã€‚ å‰ææ¡ä»¶ ä»¥ä¸‹ã®å‰ææ¡ä»¶ã§å‹•ä½œæ¤œè¨¼ã—ã¦ã„ã¾ã™ã€‚ Visual Studio Express 2013 for Windows Desktop Entity Famework 6.0.2 SQL Server 2012 Express ã‚³ãƒ³ã‚½ãƒ¼ãƒ«ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ï¼ˆãƒ¢ãƒ‡ãƒ«ãƒ•ã‚¡ãƒ¼ã‚¹ãƒˆã€ã‚³ãƒ¼ãƒ‰ãƒ•ã‚¡ãƒ¼ã‚¹ãƒˆï¼‰ Entity Framework é–¢é€£ï¼ˆã‚³ãƒ¼ãƒ‰ãƒ•ã‚¡ãƒ¼ã‚¹ãƒˆã®ã¿ï¼‰ å•†å“ãƒžã‚¹ã‚¿ã‚’æƒ³å®šã—ã¦ã€It em ã‚¯ãƒ©ã‚¹ã‚’ä½œæˆã—ã¾ã™ã€‚ ãƒ»It em.cs using System; using System.Colle
Arahabica 2015/09/27
Entity Framework
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ç¬¬4å›žã€€ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‹ã‚‰ã®Entity Data Modelç”Ÿæˆï¼ˆ1/3ï¼‰ - ï¼ IT
ä»Šå›žã®ãƒ†ãƒ¼ãƒžã¯ã€ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‹ã‚‰ã®Entity Data Modelï¼ˆä»¥ä¸‹EDMï¼‰ã®ç”Ÿæˆã§ã‚ã‚‹ã€‚ ç¬¬1å›žã‹ã‚‰èª¬æ˜Žã—ã¦ã„ã‚‹ã‚ˆã†ã«ã€Entity Frameworkã®ç†æƒ³ã¯ã€ã¾ãšæ¦‚å¿µãƒ¢ãƒ‡ãƒ«ã®è¨è¨ˆãŒã‚ã‚Šã€ãã“ã‹ã‚‰ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®å®Ÿè£…ã‚’è¡Œã†ã“ã¨ã«ã‚ã‚‹ã¨ã„ãˆã‚‹ã€‚ã—ã‹ã—ã€ç¾æ™‚ç‚¹ã§ã®é–‹ç™ºã«ãŠã„ã¦ã¯ã€ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹è¨è¨ˆãŒå…ˆã«ã‚ã‚Šã€ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ç”¨ã®ãƒ¢ãƒ‡ãƒ«ã¨ã—ã¦æ¦‚å¿µãƒ¢ãƒ‡ãƒ«ã‚’å¾Œã§è¨è¨ˆã™ã‚‹ã‚±ãƒ¼ã‚¹ã‚‚å¤šã„ã ã‚ã†ã€‚ ã¾ãŸã€æ¦‚å¿µãƒ¢ãƒ‡ãƒ«ã‚’å…ˆã«è¨è¨ˆã—ã¦ã„ã‚‹å ´åˆã§ã‚‚ã€Entity Frameworkã®ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹è‡ªå‹•ç”Ÿæˆæ©Ÿèƒ½ãŒã‚·ãƒ³ãƒ—ãƒ«ãªæ§‹é€ ã«ã—ã‹å¯¾å¿œã—ã¦ã„ãªã„ã“ã¨ã‹ã‚‰ã€è‡ªå‹•ç”Ÿæˆã‚’ã‚ãã‚‰ã‚ã€ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‹ã‚‰EDMã‚’ç”Ÿæˆã™ã‚‹ã‚±ãƒ¼ã‚¹ã‚‚è€ƒãˆã‚‰ã‚Œã‚‹ã€‚ ã“ã®ã‚ˆã†ã«ã€æ—¢å˜ã®ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‚’è§£æžã—ã€ãƒ¢ãƒ‡ãƒ«ã‚’ç”Ÿæˆã™ã‚‹ã“ã¨ã‚’ã€ä¸€èˆ¬ã«ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®ãƒªãƒãƒ¼ã‚¹ï¼ˆãƒªãƒãƒ¼ã‚¹ãƒ»ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ãƒªãƒ³ã‚°ã®ç•¥ï¼‰ã¨å‘¼ã¶ã€‚Entity Frameworkã«ãŠã„ã¦ã‚‚ã€Visual
Arahabica 2015/09/26
Entity Framework
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ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®ã‚¢ã‚¿ãƒƒãƒã¨ãƒ‡ã‚¿ãƒƒãƒ (Entity Framework)
Entity Framework ã§ã¯ã€ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆ ã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆã«ã‚¢ã‚¿ãƒƒãƒã—ãŸã‚Šã€ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆ ã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆã‹ã‚‰ãƒ‡ã‚¿ãƒƒãƒã—ãŸã‚Šã§ãã¾ã™ã€‚ ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆ ã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆã«ã‚¢ã‚¿ãƒƒãƒã•ã‚Œã¦ã„ã‚‹ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã¯ã€ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆ ã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆã«ã‚ˆã£ã¦è¿½è·¡ãŠã‚ˆã³ç®¡ç†ã•ã‚Œã¾ã™ã€‚ ãƒ‡ã‚¿ãƒƒãƒã•ã‚ŒãŸã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã¯ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆ ã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆã«ã‚ˆã£ã¦å‚ç…§ã•ã‚Œãªããªã‚‹ã®ã§ã€ãã®ãƒªã‚½ãƒ¼ã‚¹ã‚’ .NET Framework ã§å†åˆ©ç”¨ã§ãã¾ã™ã€‚ ã“ã®ãƒˆãƒ”ãƒƒã‚¯ã§ã¯ã€ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®ã‚¢ã‚¿ãƒƒãƒãŠã‚ˆã³ãƒ‡ã‚¿ãƒƒãƒã®æ–¹æ³•ã¨ã€ãã‚Œã«é–¢ã™ã‚‹æ³¨æ„äº‹é …ã«ã¤ã„ã¦èª¬æ˜Žã—ã¾ã™ã€‚ ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®ã‚¢ã‚¿ãƒƒãƒ Entity Framework ã§ã¯ã€ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆ ã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆå†…ã§ã‚¯ã‚¨ãƒªã‚’å®Ÿè¡Œã™ã‚‹ã¨ã€è¿”ã•ã‚ŒãŸã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆãŒãã®ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆ ã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆã«è‡ªå‹•çš„ã«ã‚¢ã‚¿ãƒƒãƒã•ã‚Œã¾ã™ã€‚ ã‚¯ã‚¨ãƒªä»¥å¤–ã®ã‚½ãƒ¼ã‚¹ã‹ã‚‰å–å¾—ã—ãŸã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆ ã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆã«ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’
Arahabica 2014/07/01
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Entity Framework
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[BestTV] "Castle Season 7 Episode 9" Full Episode Free HD 2014
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Arahabica 2014/06/24
Entity Framework
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Entity Framework ã§å®Ÿè¡Œã—ãŸ SQL ãƒã‚°ã‚’å‡ºåŠ›ã™ã‚‹æ–¹æ³•: ã‚ã‚‹ SE ã®ã¤ã¶ã‚„ã
Entity Framework 6.0 ã‹ã‚‰ã€å®Ÿè¡Œã—ãŸ SQL ãƒã‚°ã‚’å‡ºåŠ›ã™ã‚‹æ©Ÿèƒ½ãŒè¿½åŠ ã•ã‚ŒãŸã®ã§ã€ãã®ä½¿ç”¨æ–¹æ³•ã‚’ã”ç´¹ä»‹ã—ã¾ã™ã€‚ ã“ã®æ–¹æ³•ã§ã€SQL ã®ãƒã‚°ã‚’ç¢ºèªã™ã‚Œã°ã€é©åˆ‡ãªã‚¤ãƒ³ãƒ‡ãƒƒã‚¯ã‚¹ã®ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ãŒã§ãã‚‹ã‚ˆã†ã«ãªã‚‹ã®ã§ã€ã‹ãªã‚Šæœ‰ç”¨ãªæ©Ÿèƒ½ã ã¨æ€ã„ã¾ã™ã€‚ LINQ to SQL ã§ã¯ã€æœ€åˆã‹ã‚‰ã“ã®æ©Ÿèƒ½ãŒä»˜ã„ã¦ã„ãŸã®ã«ã€LINQ to Entities ã§ã¯ Entity Framework 6.0 ã¾ã§ã“ã®æ©Ÿèƒ½ãŒè¿½åŠ ã•ã‚Œãªã‹ã£ãŸã®ã¯æŠ€è¡“çš„ãªå•é¡Œã§ã‚‚ã‚ã£ãŸã®ã§ã—ã‚‡ã†ã‹ã€‚ å‰ææ¡ä»¶ å‰ææ¡ä»¶ã¯ã€ä»¥ä¸‹ã®ã‚ˆã†ã«ãªã‚Šã¾ã™ã€‚ SQL Server Express 2012Â ã‚’ä½¿ç”¨ ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã¯ Test, ãƒ†ãƒ¼ãƒ–ãƒ«ã¯ USERS ã‚’ä½¿ç”¨ Visual Studio Express 2013 for Windows Desktop ã‚’ä½¿ç”¨ Entity Framework 6.0 ã‚’ä½¿ç”¨ äº‹å‰æº–
Arahabica 2014/03/22
db.Database.Log = Console.Write;

Entity Framework
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Entity Framework ã® Migration ã‚’ãƒªã‚»ãƒƒãƒˆã™ã‚‹ - kaji_3's blog
Entity Framework ã® Code First ã‚’åˆ©ç”¨ã—ã¦ã„ã¾ã™ã€‚ Model ã®å¤‰æ›´ç‚¹ã‚’ Migration ã§DBã«åæ˜ ã™ã‚‹è¨³ã§ã™ãŒã€Migration ã®æ•°ãŒå¤šã„ã¨è½ã¡ç€ãã¾ã›ã‚“ã€‚ ã¨ã„ã†ã“ã¨ã§ã€Migration ã‚’ã™ã¹ã¦å‰Šé™¤ã—ã¦æœ€æ–°ã®Modelã§å‰Šé™¤ã™ã‚‹æ‰‹é †ã‚’èª¿ã¹ãŸã®ã§ãƒ¡ãƒ¢ã€‚ ç’°å¢ƒ Visual Studio 2012 Entity Framework 5.0.0 SQL Server 2012 æ—¢å˜Migrationã®å‰Šé™¤ æ—¢ã«ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã«å˜åœ¨ã—ã¦ã„ã‚‹ã€ŒMigrationã€ãƒ•ã‚©ãƒ«ãƒ€é…ä¸‹ã®ãƒ•ã‚¡ã‚¤ãƒ«ã‚’ã™ã¹ã¦å‰Šé™¤ã—ã¾ã™ã€‚ Migration ã®å®Ÿè¡Œçµæžœã‚’ä¿å˜ã—ã¦ã„ã‚‹ãƒ†ãƒ¼ãƒ–ãƒ«ã®å‰Šé™¤ ã‚·ã‚¹ãƒ†ãƒ ãƒ†ãƒ¼ãƒ–ãƒ«ã¨ã—ã¦ä½œæˆã•ã‚Œã¦ã„ã‚‹ã€Œ__MigrationHistoryã€ã«Migration ã®å±¥æ´ã¯ä¿å˜ã•ã‚Œã¦ã„ã¾ã™ã€‚ Migration ã‚’åæ˜ ã—ã¦ã„ã‚‹DBã«ä»¥ä¸‹ã®SQLã‚’å®Ÿè¡Œã—ã¾ã™ã€‚
Arahabica 2014/03/21
Entity Framework ã® Migration ã‚’ãƒªã‚»ãƒƒãƒˆã™ã‚‹

Entity Framework
ãƒªãƒ³ã‚¯
Entity Framework Code First Migrations: Set Primary Key Value
Arahabica 2014/03/21
It is right solution but only for a new table. If you change database generated option for an existing table, EF migrations are not able to perform this change and your QuoteId column is still marked as Identity in the database.

Entity Framework
ãƒªãƒ³ã‚¯
Entity Frameworkã¨ãƒˆãƒ©ãƒ³ã‚¶ã‚¯ã‚·ãƒ§ãƒ³ - Qiita
Deleted articles cannot be recovered. Draft of this article would be also deleted. Are you sure you want to delete this article?
Arahabica 2014/03/21
Entity Framework
ãƒªãƒ³ã‚¯
Code First Data Annotations - EF6
Note EF4.1 Onwards Only - The features, APIs, etc. discussed in this page were introduced in Entity Framework 4.1. If you are using an earlier version, some or all of this information does not apply. The content on this page is adapted from an article originally written by Julie Lerman (<http://thedatafarm.com>). Entity Framework Code First allows you to use your own domain classes to represent th
Arahabica 2014/03/20
Entity Framework
ãƒªãƒ³ã‚¯
Entity Framework 6 with SQL Server 2012 gives System.Data.Entity.Core.ProviderIncompatibleException
Arahabica 2014/03/11
Entity Framework
ãƒªãƒ³ã‚¯
ç¬¬2å›žã€€Entity Frameworkã‚³ãƒ¼ãƒ‰ãƒ»ãƒ•ã‚¡ãƒ¼ã‚¹ãƒˆã§ãƒ¢ãƒ‡ãƒ«é–‹ç™ºï¼ˆ2/3ï¼‰ - ï¼ IT
ã‚¨ãƒ³ãƒ†ã‚£ãƒ†ã‚£ã‚’ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã«æŽ¥ç¶šã™ã‚‹ã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆãƒ»ã‚¯ãƒ©ã‚¹ ã‚¨ãƒ³ãƒ†ã‚£ãƒ†ã‚£ãŒå®šç¾©ã§ããŸã¨ã“ã‚ã§ã€ã“ã®ä½•ã®å¤‰å“²ã‚‚ãªã„POCOã‚’ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã«æŽ¥ç¶šã™ã‚‹â€•â€•æ©‹æ¸¡ã—ã®å½¹ç›®ã‚’æžœãŸã™ã®ãŒã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆãƒ»ã‚¯ãƒ©ã‚¹ï¼ˆSystem.Data.Entity.DbContextã‚¯ãƒ©ã‚¹ã®æ´¾ç”Ÿã‚¯ãƒ©ã‚¹ï¼‰ã ã€‚ ã¾ãšã¯ã€ãƒªã‚¹ãƒˆ3ã§å…·ä½“çš„ãªä¾‹ã‚’ç¢ºèªã—ã¦ã¿ã‚ˆã†ã€‚ using System.Data.Entity; namespace MvcApp.Models { public class MyMvcContext : DbContext { public DbSet<Book> Books { get; set; } // Booksãƒ†ãƒ¼ãƒ–ãƒ« public DbSet<Review> Reviews { get; set; } // Reviewsãƒ†ãƒ¼ãƒ–ãƒ« } } Imports System.Data.Entity Public
Arahabica 2014/03/11
Entity Framework
ãƒªãƒ³ã‚¯
Entity Framework POCO Update Entity?
Arahabica 2014/03/09
Entity Framework
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Entity Framework 5.0å€‹äººçš„ãƒ¡ãƒ¢ - ã‹ãšãã®Blog@hatena
ã¡ã‚‡ã£ã¨æ›´æ–°å‡¦ç†ã¨ã‹ã®ã“ã¨ãŒæ°—ã«ãªã£ãŸã®ã§è©¦ã—ãŸçµæžœã‚’ãƒ¡ãƒ¢ãƒ¡ãƒ¢ã€‚ ã“ã‚“ãªãƒ‡ãƒ¼ã‚¿ã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆã‚’ç”¨æ„ã—ã¦ãŠãã¾ã™ã€‚ // ç°¡å˜ãƒ‡ãƒ¼ã‚¿ã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆ public class SampleContext : DbContext { public DbSet<Person> People { get; set; } } public class Person { public int Id { get; set; } public string Name { get; set; } } é©å½“ã«ãƒ‡ãƒ¼ã‚¿ã‚’çªã£è¾¼ã‚€å ´åˆ // é©å½“ã«ãƒ‡ãƒ¼ã‚¿çªã£è¾¼ã‚€ using (var ctx = new SampleContext()) { ctx.People.Add(new Person { Name = "ç”°ä¸1" }); ctx.People.Add(new Person { Name = "ç”°ä¸2" }); c
Arahabica 2014/03/08
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Entity Framework
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EF4 Update Entity Without First Getting Entity
Arahabica 2014/03/08
Entity Framework
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Reset Entity-Framework Migrations
I've mucked up my migrations, I used IgnoreChanges on the initial migration, but now I want to delete all my migrations and start with an initial migration with all of the logic. When I delete the migrations in the folder and try and Add-Migration it doesn't generate a full file (it's empty - because I haven't made any changes since my last, but now deleted, migration). Is there any Disable-Migrat
Arahabica 2014/03/07
Entity Framework

.NET
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Entity Framework
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