All Questions
Tagged with mysql-connector entity-framework
57 questions
1
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0
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Using the same DbCompiledModel to create contexts..." with Entity Framework
I have a C# project running from about 8 years without problems.
Using .net 4.8 c# entity framework 6 MySql and SqLite.
This year I would like to upgrade mysql db drivers from version 8 to 9.
After ...
1
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0
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51
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EntityFramework / MySQL Nullpointer Exception while generating query
We are using MySQL.Data.EntityFramework 8.0.20 and are currently facing a wild issue:
In a regular base query, we are doing something like this:
query = query.Include("Table1").Include("...
- 20.9k
0
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68
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Connect Timeout expired. Unable to connect to any of the specified MySQL hosts
I'm trying to deploy my api inside a docker container. It was working perfectly but I changed the mysql server parameters and it started giving me the following problem. Does anyone have any idea what ...
1
vote
1
answer
433
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MySql error, The given key was not present in the dictionary
I am getting the below exception while connecting to the database server.
Exception: An error occurred while executing the command definition. See the inner exception for details.
StackTrace: at ...
- 71
0
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1
answer
68
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DotNet Minimal API Refuses to connect to MySql instance
I have set up the following Program.cs:
using Api.Models;
using Microsoft.EntityFrameworkCore;
var builder = WebApplication.CreateBuilder(args);
// Add services to the container.
// Learn more about ...
- 424
-1
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2
answers
83
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In the Entity Framework, how to change by code the database connection string
I need to change my code because I have the connection string in the web.config. I am calling from a project. I don't want to use app.config. I need to make centralized in web.config.
How can I change ...
- 7,379
0
votes
0
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78
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MySqlConnection and EntityFramework shared connection
I have two ways to connect to mysql db
1. using MySqlConnection
2. using EntityFramework
they both implment IDbConnection inside
I need to share connection between them since i want to use both in ...
- 5,947
3
votes
1
answer
2k
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MySql.Data.MySqlClient.MySqlProviderServices.GetDbProviderManifestToken to access method MySql.Data.MySqlClient.MySqlConnection.get_Settings() failed
To Upgrade
Database: MySql Version 5.5.62 to 8.0.28
.NET Framework: Version 4.5 to 4.8
Entity Framework: Version 5.0.0 to 6.4.4
I followed the steps:
Uninstall and remove all existing mySQL dll ...
0
votes
1
answer
303
views
Connecting MySql With Entity Framework c#
I have a stable program working with local SQL Server, However the client requires online access (with low budget) to the database. So I decided to migrate to MySQL (if you have any suggestion with ...
- 565
0
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0
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713
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What is the app.config equivalent for .NET Core/5.0
I am trying to port code from a .NET Framework project to .NET Core/5.0, specifically my problem here is getting my custom MySQL authentication plugin working.
For .NET Framework, instructing the ...
- 2,350
1
vote
1
answer
47
views
Foreign Key Issue?
In my HomeController, I am having trouble with my create function accessing the database. After submitting the form in my browser, this is the error that shows:
Error Given
MySqlException: Cannot add ...
- 51
1
vote
1
answer
958
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Table 'dbname.dbname.tablename' doesn't exists error in Visual Studio when adding Mysql Entity Framework
I am trying to add MySQL with Entity Framework in Visual Studio. I am using MySQL Server 8.0.12 and also the 8.0.12 Connector/MySql.data.
error: MysqlException: Table 'dbname.dbname.tablename' doesn't ...
- 69
1
vote
1
answer
115
views
httppost data used for database queries
I have two fields of string data from an asp MVC entity framework view. Through model binding, I now have this data back in the httppost action function. I would now like to use this data to pass to a ...
- 105
16
votes
3
answers
48k
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asp.net core: "Operations that change non-concurrent collections must have exclusive access."
My server uses MySqlConnector and communicates with a MySQL database on AWS. I store 5 minute chunks of API counters in MySQL. Those API counters are incrementing with each API call, and are handled ...
- 1,381
4
votes
3
answers
8k
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Connect Entity Framework with MYSQL in VS2019
I just installed Visual Studio 2019 and I´m trying to add a database with an ADO.NET entity model, but the wizard crashes in this step...
Select Entity Framework Version
I have Visual Studio ...
- 111