https://github.com/janluksoft/efpostgreswinform

Entity Framework application for CRUD operations on Postgres Server
https://github.com/janluksoft/efpostgreswinform

c-sharp code-first dotnet entity-framework entity-framework-6 visual-studio winforms

Last synced: 27 days ago
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Entity Framework application for CRUD operations on Postgres Server

• Host: GitHub
• URL: https://github.com/janluksoft/efpostgreswinform
• Owner: janluksoft
• License: mit
• Created: 2022-10-16T21:05:37.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2022-10-16T21:10:06.000Z (over 2 years ago)
• Last Synced: 2024-11-14T06:24:33.374Z (3 months ago)
• Topics: c-sharp, code-first, dotnet, entity-framework, entity-framework-6, visual-studio, winforms
• Language: C#
• Homepage:
• Size: 354 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Entity Framework with Postgres Server

The application demonstrates the use of Entity Framework to perform simple CRUD operations on a Postgres Server database using WinForm windows.

The structure of the table is defined by the POCO (CPerson) class. The class (PeopleDBContext) creates a context (dbPersons) that represents a table (Sprinters) in the form of an object. Operations on this object are automatically transferred to the table (Sprinters) in the database.

## Using the application

- Create a table (Sprinters) in pgAdmin4, in (Query Editor) via SQL command: pgAdmin4 will create the (Sprinters) table. (is described further). The (SaveChanges()) method in SQL Server creates the table itself when it is missing. In Postgres, it will not create a table in this way. Therefore, it should be done in pgAdmin4.

- On the (Login) tab, enter the login information from Postgres Server

- Check the connection with the button 2 (Check Connection)

- For valid data, a message will be shown: (Connection Good)

![](/Jpg/Entity-Framework_Postgres_Login-parameters.png)

![](/Jpg/Entity-Framework_Postgres_Login-params_pgAdmin.png)

- In the (Proposal) tab, you can press the button: the application should save 5 example rows to a table (Sprinters) and on the Postgres Server.

- In the (DataBase) tab you can: (5) read the table from the SQL server, (6) add rows, (7) delete rows. 

![](/Jpg/Entity-Framework_Postgres_Table_Sprinters.png)

## Create Table

   ```

CREATE TABLE public."Sprinters" 

("Id" serial NOT NULL PRIMARY KEY, 

"name" text, 

"surname" text, 

"age" real,

"city" text,

"height" real ); 

   ```

![](/Jpg/Create_Table_in_Postgres.png)

## Details

- Environment: VS2019

- Target Framework: .NET Framework 4.7.2

- Window: WinForm