How do I register a Firebird data provider to use it with Entity Framework?
What should I do to make it appear in the Entity Data Model Wizard/Choose Data Source window?
(source: rafaelromao at sites.google.com)
I expect it to appear in the Data sources: or Data provider: lists.
Is it possible? Or I need to configure this connection another way?
PS: The provider I'm trying to use is the FirebirdClient 2.5
You have to install DDEX Provider for Visual Studio
http://www.firebirdsql.org/index.php?op=files&id=netprovider
http://web.firebirdsql.org/firebirdtutorial/firebird-data-access-designer-ddex-installation.html
Starting with the Firebird .net Provider 3.0 and the DDEX Provider 3.0 there is an installer, where you can select for which VS versions you want the provider to be installed.
http://www.firebirdsql.org/en/net-provider/
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I have an application that uses Entity Framework, OData and SqlServer in a .Net core 3.1 scenario and it works great. Ultimately I want to use Cosmos DB on Azure in lieu of SQL Server.
While I can get the app to connect to Cosmos the application fails in calls to FromSqlRaw which the 3.1 compatible libraries do not support.
I've tried upgrading the project entirely to .Net core 6.0 and while this compiles without error I get problems loading assemblies using a package called MediatR (for injection) when the application starts.
My question is twofold: Do the .Net 6.0 compatible libraries for Cosmos DB correctly handle FromSqlRaw and/or is there a workaround for the problem if they do not.
If you are asking if you can send T-SQL or ANSI-SQL to FromRawSQL in EF with the Cosmos DB provider the answer is no.
Cosmos DB is a NoSQL database. The FromRawSQL is intended to allow users to send Cosmos DB's own dialect of SQL and was put in as a way to make the Cosmos provider higher compatible where the provider maybe lacked specific capabilities exposed by Cosmos DB itself.
I like to use a previous ADO.Net Entity Model, stored in another project (in the same solution) and imported like DLL in Blazor's ASP.NET Framework (not Core).
Unfortunately when i try to connect my context I receive that error: "No connection string named 'MyDBEntities' could be found in the application config file.".
I tried to configure appsettings.json:
"ConnectionStrings": {
"MyDBEntities": "xxxxxxxxxxxxxxxxxxxx"
}
and the startup.cs:
services.AddScoped<MyDBEntities>((_) => new MyDBEntities(Configuration.GetConnectionString("MyDBEntities")));
What am I doing wrong?
After some research, the best solution for implement a system like ADO.NET in .Net 6 with Blazor is to use EF Core Power Tools, a useful design-time DbContext features for connect your DB (in my case is SQL Server) and automate the creation or update of your tables.
It's very simple to install, configure and use like ADO.NET.
For more information about how install in your Visual Studio Solution, here is the link:
https://marketplace.visualstudio.com/items?itemName=ErikEJ.EFCorePowerTools
I want to create connection from visual studio 2008 to sql server 2012 by Ado.Net Entity data model,but I got this error at this photo support error
I tried to find a solution to this problem and I thought maybe OLEDB can be a solution but in this photo I want to choose .Net Framework Data Provider for OLEDB below to solve the problem by OLEDB but there is no selection of it. no selection of OLEDB
So please can you tell me how can I make connection vs2008 through ado.net or how I can select OLEDB because I need a web service to my smart device application. Because it is a smart device application I can only use VS2008 to develop. I am looking forward to hear from you. Thanks in advance.
You can develop the web service using any newer VS version, it is not tied to the Smart Device application in any way.
I have been working with Entity Framework with Microsoft SQL Server (via SqlClient) and recently required to connect to an external database via ODBC connection.
Here are my questions:
Is EF on ODBC doable?
IF yes, how? or If No, what other option if OBDC is a must.
Any sample EF on OBDC project for reference?
Thanks.
I'm trying to build an application in visual studio and I wanted to know if there is an ADO.NET provider for Sybase IQ.
Sybase IQ .NET support is provided by the SQL Anywhere.NET Data Provider.
See SyBooks Online.