Repository pattern to execute a stored procedure using Entity Framework (2024)

Sure, here's how you can implement the repository pattern to execute a stored procedure using Entity Framework in C#:

Create a Repository Interface: Define an interface that contains the method signature for executing the stored procedure.

public interface IMyRepository{ void ExecuteStoredProcedure(string procedureName, params object[] parameters);}

Implement the Repository Interface: Implement the interface in a concrete class.

public class MyRepository : IMyRepository{ private readonly DbContext _dbContext; public MyRepository(DbContext dbContext) { _dbContext = dbContext; } public void ExecuteStoredProcedure(string procedureName, params object[] parameters) { _dbContext.Database.ExecuteSqlRaw(procedureName, parameters); }}

Usage: You can now use this repository in your service layer or wherever you need to execute the stored procedure.

public class MyService{ private readonly IMyRepository _repository; public MyService(IMyRepository repository) { _repository = repository; } public void MyMethod() { // Call the stored procedure _repository.ExecuteStoredProcedure("Your_Stored_Procedure_Name", /* parameters */); }}

Register Dependencies: Register your repository and DbContext in your dependency injection container. For example, if you're using ASP.NET Core, you can do it in the Startup.cs file.

public void ConfigureServices(IServiceCollection services){ // Register DbContext services.AddDbContext<YourDbContext>(); // Register repository services.AddScoped<IMyRepository, MyRepository>(); // Other service registrations...}

Ensure to replace YourDbContext with your actual DbContext class and Your_Stored_Procedure_Name with the name of your stored procedure. Also, make sure to handle any input/output parameters or result sets according to your stored procedure's requirements.

Examples

Repository pattern execute stored procedure Entity Framework
Description: Users may want to implement the repository pattern to execute a stored procedure using Entity Framework.
```
public interface ICustomRepository{ void ExecuteStoredProcedure(string procedureName, params object[] parameters);}public class CustomRepository : ICustomRepository{ private readonly YourDbContext _context; public CustomRepository(YourDbContext context) { _context = context; } public void ExecuteStoredProcedure(string procedureName, params object[] parameters) { _context.Database.ExecuteSqlCommand($"EXEC {procedureName}", parameters); }}
```
This code defines an interface ICustomRepository and a concrete implementation CustomRepository using Entity Framework to execute a stored procedure.
See Also
Efficiently Mapping Database Objects to DTOs using Reusable Methods with EF Core SQL Optimizing Data Retrieval in ASP.NET: A Guide to Lazy, Eager, and Explicit Loading in Entity Framework Core Digging deeper into DbContext in Entity Framework Core Entity Core Framework Query Types

Repository pattern execute stored procedure with result using Entity Framework

Description: Individuals might want to execute a stored procedure with a result using the repository pattern and Entity Framework.

public interface ICustomRepository{ IEnumerable<TEntity> ExecuteStoredProcedure<TEntity>(string procedureName, params object[] parameters);}public class CustomRepository : ICustomRepository{ private readonly YourDbContext _context; public CustomRepository(YourDbContext context) { _context = context; } public IEnumerable<TEntity> ExecuteStoredProcedure<TEntity>(string procedureName, params object[] parameters) { return _context.Set<TEntity>().FromSqlRaw($"EXEC {procedureName}", parameters); }}

This code extends the repository pattern interface and implementation to execute a stored procedure with a result set using Entity Framework.

Repository pattern execute stored procedure with output parameters using Entity Framework

Description: Users may seek to execute a stored procedure with output parameters using the repository pattern and Entity Framework.

public interface ICustomRepository{ void ExecuteStoredProcedureWithOutput(string procedureName, out int outputParameter, params object[] parameters);}public class CustomRepository : ICustomRepository{ private readonly YourDbContext _context; public CustomRepository(YourDbContext context) { _context = context; } public void ExecuteStoredProcedureWithOutput(string procedureName, out int outputParameter, params object[] parameters) { var outputParam = new SqlParameter("@OutputParameter", SqlDbType.Int) { Direction = ParameterDirection.Output }; _context.Database.ExecuteSqlCommand($"EXEC {procedureName} @OutputParameter OUT", outputParam, parameters); outputParameter = (int)outputParam.Value; }}

This code modifies the repository pattern interface and implementation to execute a stored procedure with output parameters using Entity Framework.

Repository pattern execute stored procedure with complex type using Entity Framework

Description: Individuals might want to execute a stored procedure that returns a complex type using the repository pattern and Entity Framework.

public interface ICustomRepository{ IEnumerable<YourComplexType> ExecuteStoredProcedureComplexType(string procedureName, params object[] parameters);}public class CustomRepository : ICustomRepository{ private readonly YourDbContext _context; public CustomRepository(YourDbContext context) { _context = context; } public IEnumerable<YourComplexType> ExecuteStoredProcedureComplexType(string procedureName, params object[] parameters) { return _context.YourComplexType.FromSqlRaw($"EXEC {procedureName}", parameters); }}

This code adapts the repository pattern interface and implementation to execute a stored procedure returning a complex type using Entity Framework.

Repository pattern execute stored procedure with transaction using Entity Framework

Description: Users may search for how to execute a stored procedure with a transaction using the repository pattern and Entity Framework.

public interface ICustomRepository{ void ExecuteStoredProcedureWithTransaction(string procedureName, params object[] parameters);}public class CustomRepository : ICustomRepository{ private readonly YourDbContext _context; public CustomRepository(YourDbContext context) { _context = context; } public void ExecuteStoredProcedureWithTransaction(string procedureName, params object[] parameters) { using (var transaction = _context.Database.BeginTransaction()) { try { _context.Database.ExecuteSqlCommand($"EXEC {procedureName}", parameters); transaction.Commit(); } catch (Exception) { transaction.Rollback(); throw; } } }}

This code extends the repository pattern interface and implementation to execute a stored procedure with a transaction using Entity Framework.

Repository pattern execute stored procedure async using Entity Framework

Description: Individuals might want to execute a stored procedure asynchronously using the repository pattern and Entity Framework.

public interface ICustomRepository{ Task ExecuteStoredProcedureAsync(string procedureName, CancellationToken cancellationToken, params object[] parameters);}public class CustomRepository : ICustomRepository{ private readonly YourDbContext _context; public CustomRepository(YourDbContext context) { _context = context; } public async Task ExecuteStoredProcedureAsync(string procedureName, CancellationToken cancellationToken, params object[] parameters) { await _context.Database.ExecuteSqlCommandAsync($"EXEC {procedureName}", cancellationToken, parameters); }}

This code modifies the repository pattern interface and implementation to execute a stored procedure asynchronously using Entity Framework.

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Repository pattern to execute a stored procedure using Entity Framework (2024)

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