We recommend that you execute the above example in a step-by-step manner for better understanding. When the above code is executed, you will see that two different tables are created for two different models as shown in the following image. In the following code, there are two DbContext classes for Student and Teacher. In our example, we will define two Context classes for the same database. Multiple context classes may belong to a single database or two different databases. See this article on how to set up the SQLite RowVersion. IsSqlite in your DbContext configuration and set up the SQLite RowVersion. It's likely that connection pooling is what is holding the connection open. Having a mixture of SQLIte in-memory and production databases in your unit tests is fine (I do it all the time). Open Server Explorer and if there is a connection to the file make sure its closed or removed altogether. Public DateTime EnrollmentDate ", teacher.ID, name) Ĭonsole.WriteLine("Press any key to exit.") Multiple DbContext was first introduced in Entity Framework 6.0. Two things jump to mind: Make sure Visual Studio isn't locking the database file. Below is the screenshot of file when opened in the SQLite Browser tool. In the following code, there are two DbContext classes for Student and Teacher. And if you should see a SQlite DB file created on the path specified in connection string. Multiple context classes may belong to a single database or two different databases.Multiple DbContext was first introduced in Entity Framework 6.0. NET-FRAMEWORK 5 ACCESS-SERVICES 2 ACS 11 ACTIVE-DIRECTORY 7 ADFS 4 ADSIEDIT 1 AGILE 3 AI 2 AJAX 1 ALM 1 ANDROID 1 APPFABRIC 6 APPLICATION-INSIGHTS 2 ASP.NET 9 AZURE 20 AZURE-AD 3 AZURE-RESOURCE-MANAGER 3 AZURE-STACK 1 AZURE-WEBSITES 4 BACKUP 2 BEST-PRACTICE 4 BIZTALK 7 BIZTALK-PIPELINE-DISASSEMBLE 1 BLETCHLEY-PARK 1 BLOGGING 1 BOOK 1 BOOKS 2 BOTFRAMEWORK 1 BOTS 2 BPA 1 BUSINESS-PROCESS-AUTOMATION 1 CERTIFICATES 2 CFP 1 CHATBOTS 1 CHRISTMAS 1 CLOUD 1 CLOUD-OPERATING-MODEL 1 CLUSTER 3 CODE-BREAKING 1 CODE-QUALITY 1 COLLABORATION 1 COM 1 CONFERENCE 6 CONFIGURATION-MANAGER 6 CONTENT-QUERY-WEB-PART 1 CONTENT-TYPE-HUB 1 CONTENT-TYPES 4 CRITICAL-THINKING 2 CRM 4 CSOM 1 DATA-PROTECTION-MANAGER 5 DATA-SCIENCE 4 DDD 10 DEBUGGING 1 DEPLOYMENT 15 DESIRED-STATE-CONFIGURATION 2 DEVOPS 39 DEVTEST-LABS 3 DIGITAL-SIGNATURES 1 DISCOVERY 1 DPM 5 DSC 3 ENERGY-SAVING 1 ENIGMA 1 EVENTS 15 EXCHANGE 2 FACEBOOK-MESSENGER 1 FEATURES 1 FIREWALL 1 FLOW 1 GADGETEER 4 GENERAL-INTEREST 1 GIT 2 GITHUB 10 GRAPHIC-DESIGN 3 GROUP-POLICY 3 HADOOP 1 HARDWARE 8 HIGH-AVAILABILITY 2 HORTONWORKS 1 HYPER-V 6 HYPER-V-R2 6 HYPER-V-SERVER 1 IIS 3 IMAGINE-CUP 1 INFOPATH 5 INTEGRATION 2 KERBEROS 2 LINQ 1 LIVE-LABS 1 LIVE-MESSENGER 1 LOGGING 3 LOGIC-APPS 3 LOGICAPPS 1 MALWARE 1 MANAGED-METADATA-SERVICE 1 MANAGEMENT 4 METRO 6 MICROSOFT-AZURE 4 MICROSOFT-EVENTS 3 MICROSOFT-TEAMS 2 MIGRATION 5 MOSS 3 MVP 3 MYSITE 1 MYSITE-NEWSFEED 1 NETWORK-LOAD-BALANCING 2 NGROK 1 NODE 1 NODEJS 1 OPEN-XML 1 OPINION 8 OPTION 1 OSLO 1 PASSWORD-RESET 1 PERFORMANCEPOINT 2 PERMISSIONS 7 PESTER 1 POLICING 1 POWER-AUTOMATE 1 POWERSHELL 22 PRISM 6 PROBABILITY 1 REGISTRY 4 RELEASE-MANAGEMENT 9 REMOTE-MANAGEMENT 7 REPORTING 1 REPORTING-SERVICES 2 SCCM 1 SCOM-2007 1 SCRUM 1 SCVMM 1 SCVMM-2008 3 SEARCH 1 SECURITY 4 SERVICE-APPLICATIONS 2 SERVICE-BUS 11 SHAREPOINT 50 SIGNALR 3 SILVERLIGHT 1 SOFTWARE-DELIVERY 1 SONARQUBE 4 SPC-2009 4 SPN 2 SQL 15 SQL-AZURE 6 SQL-SERVER 7 STATISTICS 1 SURFACE-PRO-3 1 SYSTEM-CENTER 7 SYSTEM-CENTER-OPERATIONS-MANAGER 2 TEAM-FOUNDATION-SERVER 3 TEAMS 2 TECH-ED-EMEA-2008-IT 2 TECH-TIPS 90 TESTING 3 TFS 5 THREAT-MANAGEMENT-GATEWAY 1 TLS 1 TMG 2 TNMOC 1 TYPEMOCK 1 UI 3 UK-IT-CAMPS 1 UNCATEGORISED 2091 UPGRADE 9 USER-PROFILE-SERVICE-APPLICATION 1 VBUG 1 VIRTUAL-MACHINES 8 VISUAL-STUDIO 20 VSO 1 VSTO 2 VSTS 64 WCF-DATA-SERVICE 1 WCF-DATA-SERVICES 1 WEB-API 4 WEB-APPLICATION-PROXY 3 WEB-PARTS 2 WEB-PLATFORM-INSTALLER 1 WHITE-PAPER 3 WHITE-PAPERS 1 WINDOWS-10 8 WINDOWS-10-1511 1 WINDOWS-10-1903 1 WINDOWS-7 2 WINDOWS-8 6 WINDOWS-8.In this chapter, we will be learning how to migrate changes into the database when there are multiple DbContext classes in the application.
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