2013-11-29 · If user is valid user then I will get the data base connection string of that particular user from data base. Now I need to connect with that database. So that I need to change connection string dynamically for Entitty.(Here I am using repository Pattern All repositories and Entity Context constructor is calling using Autofac Dependancy Injection)
2011-5-20 · I have a DbContext derived class MyDBContext and connection string is provided in webnfig file as below including the provider. I would like to be able to create the connection string programmatically with differeing datasource and other properties based on the scneario.
2012-4-3 · This meant I didn t really want to use a Connection String as this is more or less hard-coded in the nfig file. Instead I opted to create it programmatically. By default DbContext expects to be using SQL Server in particular an instance of SQLExpress named .SQLExpress.
2015-11-9 · I have a similar problem. My connection string is a function of a named appnfig connection string AND another parameter which I have my own interface/implementation that provides this (IConnectionStringResolver).I want to inject it as follows but AmbientDbContextLocator requires a parameterless constructor for my DbContext-derived class . public class TaskManagementDbContext
2019-12-30 · Add your connection string to your appsettings.json file Specify your connection string by overriding the OnConfiguring method in DbContext When adding your connection string you need to specify a new key-value string inside the "ConnectionStrings" key. Here is an example of how your appsettings.json might look like
2017-11-30 · Hello I am using ASP Core and EF Core for the creation of a Web API. I want to use the same Web API (same controllers same functionalities etc.) for multiple databases. Therefore what I want to accomplish is giving the connection string as a parameter to a controller and change it at runtime.
2017-11-30 · Hello I am using ASP Core and EF Core for the creation of a Web API. I want to use the same Web API (same controllers same functionalities etc.) for multiple databases. Therefore what I want to accomplish is giving the connection string as a parameter to a controller and change it at runtime.
2019-12-3 · How do I create connection string programmatically to MS SQL in Entity Framework 6 I m using c# and WPF and I was wondering if someone could show me how or link me to a resource that shows how to set up connection strings programmatically in
2015-7-26 · Yes I have seen that wiki. I just think it s a bit of a hassle that I have to write a lot of implementation details (adding a constructor and _connectionString field and override OnConfiguring) into my DbContext subclass to support setting a connection string programmatically. I still feel like nhibernate has the better configuration model.
Then in dbcontext get connection string from this cache. You can get AbpSession.TenantId in DbContext. Note-1 To get connection string by tenant-id you may not use DbContext (this causes recursive calls) but you can use old style AdoNet. Note-2 Maybe you need to 2 DbContext one per tenants one for host. Because there are 2 different db
How do I create connection string programmatically to MS SQL in Entity Framework 6 I m using c# and WPF and I was wondering if someone could show me how or link me to a resource that shows how to set up connection strings programmatically in EF 6.
2017-11-30 · Hello I am using ASP Core and EF Core for the creation of a Web API. I want to use the same Web API (same controllers same functionalities etc.) for multiple databases. Therefore what I want to accomplish is giving the connection string as a parameter to a controller and change it at runtime.
2020-7-9 · As you can see after getting the connection string template we search for the database name which is equal to the value of the tenantId header then we do the replacement and finally we configure the DbContext with the connection string. In this way we have configured EF Core with a dynamic connection string. Security
Then in dbcontext get connection string from this cache. You can get AbpSession.TenantId in DbContext. Note-1 To get connection string by tenant-id you may not use DbContext (this causes recursive calls) but you can use old style AdoNet. Note-2 Maybe you need to 2 DbContext one per tenants one for host. Because there are 2 different db
2011-5-20 · I have a DbContext derived class MyDBContext and connection string is provided in webnfig file as below including the provider. I would like to be able to create the connection string programmatically with differeing datasource and other properties based on the scneario.
2015-11-9 · I have a similar problem. My connection string is a function of a named appnfig connection string AND another parameter which I have my own interface/implementation that provides this (IConnectionStringResolver).I want to inject it as follows but AmbientDbContextLocator requires a parameterless constructor for my DbContext-derived class . public class TaskManagementDbContext DbContext
2015-8-16 · This article was originally posted here at Programmer s Ranch on Saturday 16th November 2013. The syntax highlighting was added when the article was migrated here. Hi everyone 🙂. This article deals with how to solve the problem of building and setting an Entity Framework connection string at runtime based on a database-first approach (i.e. you have generated an Entity Data Model based
2017-9-9 · Currently I have the connection string configured in the appsetting.json file and add the connection to the dbcontex in the Startup.cs class. public void ConfigureServices (IServiceCollection services) . // Add framework services. services.AddMvc () services.AddSingleton
2013-11-29 · If user is valid user then I will get the data base connection string of that particular user from data base. Now I need to connect with that database. So that I need to change connection string dynamically for Entitty.(Here I am using repository Pattern All repositories and Entity Context constructor is calling using Autofac Dependancy Injection)
DBContext in EF Core. In this article let us look at how to Provide Database Connection String in Entity Framework (EF) Core Applications. The DBContext connects to the database using the Database Providers. These Providers requires a connection string to connect to the database. The way the connection string is specified has changed from the
2016-10-23 · If the connection string name is different from the name of your context then you can tell DbContext to use this connection in Code First mode by passing the connection string name to the DbContext constructor. For example public class BloggingContext DbContext public BloggingContext() base("BloggingCompactDatabase")
Answer. DbContext has a constructor overload that accepts the name of a connection string or a connection string itself. Implement your own version and pass it to the base constructor. public CustomerContext ( string connectionString) base (connectionString) Then simply pass the name of a configured connection string or a connection
mvc connection string integrated security onconfigure. dotnet core change connection string if production. dotnet ef 6.4 connection string. Scaffold-DbContext "Server=localhostSQLEXPRESSDatabase=Tutorial DatabaseTrusted_Connection=True" Microsoft.EntityFrameworkCore.SqlServer -OutputDir Models.
2017-8-18 · EF Core allows you to generate a DbContext based on an existing database connection database-first. You can achieve this via the dotnet ef dbcontext scaffold command. This will generate a
entity framework dbcontext connection string entity framework connection string in code entity framework connection string example entity framework change connection string at runtime dbcontext connection string core entity framework connection string sql server entity framework code first connection string entityconnectionstringbuilder
Scaffold-DbContext asp core ef core create context from database scaffold dbcontext ef core c# ef core generate code from database create dbcontext from existing database core scaffold-dbcontext connection string generate models with ef core Asp core Database first scaffold-dbcontext core 3.1 asp core entity framework
Accepted Answer. We have a case similar to you. What we ve done is use the implementationfactory overload of the IServiceCollection in the ConfigureServices method of the Startup class like so //First register a custom made db context provider services.AddTransient () //Then use implementation factory to get the
2012-4-3 · This meant I didn t really want to use a Connection String as this is more or less hard-coded in the nfig file. Instead I opted to create it programmatically. By default DbContext expects to be using SQL Server in particular an instance of SQLExpress named .SQLExpress.
When you have the EF designer up on the properties window is a connectionstring setting. Once you have everything set as you like clear that setting to none. It rewrites the generated code to accept a connection string passed in on instantiating. var mything= new dbcontext
2020-7-9 · As you can see after getting the connection string template we search for the database name which is equal to the value of the tenantId header then we do the replacement and finally we configure the DbContext with the connection string. In this way we have configured EF Core with a dynamic connection string. Security
2011-8-2 · 2 Aug 2011 CPOL. This shows how to set or change the connection string for Entity Framework at run time (programmatically) C . Copy Code. string connectionString = new System nfiguration nfigurationSettings.AppSettings "ConnectionString" ) System.Data.SqlClient.SqlConnectionStringBuilder scsb = new System.Data.SqlClient
2015-11-9 · I have a similar problem. My connection string is a function of a named appnfig connection string AND another parameter which I have my own interface/implementation that provides this (IConnectionStringResolver).I want to inject it as follows but AmbientDbContextLocator requires a parameterless constructor for my DbContext-derived class . public class TaskManagementDbContext DbContext
Remarks. This is used when just a database name or connection string is given to DbContext or when the no database name or connection is given to DbContext in which case the name of the context class is passed to this factory in order to generate a DbConnection. By default the IDbConnectionFactory instance to use is read from the application s nfig file from the "EntityFramework
Accepted Answer. We have a case similar to you. What we ve done is use the implementationfactory overload of the IServiceCollection in the ConfigureServices method of the Startup class like so //First register a custom made db context provider services.AddTransient () //Then use implementation factory to get the
I found a workaround by using a different constructor from the base DbContext class public DbContext(DbConnection existingConnection bool contextOwnsConnection) Using this override you can pass an SQLiteConnection instead which you set the connection string on. So for example you can add a new constructor to your FirmwareContext.
To create a DbContext with an appropriate programmatically set connection string use the EntityConnectionStringBuilder class. In this example DbContext uses "BloggingDatabase" as the database name and creates a connection string for this database using either SQL Express (installed with Visual Studio 2010) or LocalDB (installed with Visual
Dbcontext connection string programmatically I have a DbContext derived class MyDBContext and connection string is provided in webnfig file as below including the provider. That means create conenction string programmatically and create the db context from a
Dynamically change/update DefaultConnectionFactory and have to change default connection factory runtime using code first EF6.x public DbContext alterConnectionString (string connectionString) Code First allows you to define your model using C# or VB classes. Additional configuration can optionally be performed using attributes on your classes and properties or by using a fluent API.
Dbcontext connection string programmatically. Entity Framework 6 set connection string runtime To create a DbContext with an appropriate programmatically set connection string use the EntityConnectionStringBuilder class. The connection string works when using the DbContext with no arguments which is reading the string from appnfig. entity-framework database-connection
2021-5-27 · I need to set programmatically the connection string when a new instance of MyDbContext object is created. In order to do so I use the following code public MyDbContext(string myString) this.Database nnection nnectionString = myString myString = "Server=MYSERVERSQLEXPRESS Database=MyDB User ID=user Password=pass" or
2019-5-8 · Connection strings for most providers are documented here. Configuring The Connection String. Once you have constructed your connection string you meed to make it available to your DbContext. There are a number of ways to achieve this. Overriding The OnConfiguring Method
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