Chang.EFCore.Extensions 8.0.1

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. 
dotnet add package Chang.EFCore.Extensions --version 8.0.1
                    


                    

                
NuGet\Install-Package Chang.EFCore.Extensions -Version 8.0.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Chang.EFCore.Extensions" Version="8.0.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Chang.EFCore.Extensions" Version="8.0.1" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Chang.EFCore.Extensions" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Chang.EFCore.Extensions --version 8.0.1
                    


                    

                
#r "nuget: Chang.EFCore.Extensions, 8.0.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Chang.EFCore.Extensions@8.0.1
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Chang.EFCore.Extensions&version=8.0.1
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Chang.EFCore.Extensions&version=8.0.1
                    


                            Install as a Cake Tool

EFCoreExtensions

EF Core 常用擴充：DefaultValueSql、Computed Column、View Mapping、DisplayName→Comment、EF Core file logger。

使用方式

在 DbContext.OnModelCreating

protected override void OnModelCreating(ModelBuilder modelBuilder)
{
    modelBuilder
        .ApplyComputedColumnSqls()   // [ComputedColumnSql] → HasComputedColumnSql(...)
        .ApplyDefaultValueSqls()     // [DefaultValueSql]   → HasDefaultValueSql(...)
        .ApplyDefaultValues()        // [DisplayName]/[DefaultValue] → HasDefaultValue(...)
        .ApplyDisplayAndComments()   // DisplayName (+ Comment) → HasComment(...)
        .ApplyViews();               // [ToView] → HasNoKey().ToView(...)
}

計算欄位（SQL Server 爲主）

using EFCoreExtensions.Attributes;

public class Order
{
    public decimal Price { get; set; }
    public int Qty { get; set; }

    [ComputedColumnSql("[Price]*[Qty]", stored: true, columnType: "decimal(18,2)")]
    public decimal Total { get; private set; }
}

DefaultValueSql

[DefaultValueSql("getutcdate()")]
public DateTime CreatedAt { get; set; }

對應 DB View

[ToView(ViewName = "VW_Reports")]
public class ReportRow
{
    public int Id { get; set; }
}

將 DisplayName 合併到 Comment

[DisplayName("金額")]
[Comment("稅前")]
public decimal Amount { get; set; }
// 結果: Column Comment = "金額:稅前"

EF Core 檔案記錄器

using EFCoreExtensions.Logging;

builder.Logging.AddProvider(new DbContextLoggerProvider("D:\\logs\\efcore.log"));
Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last Updated
8.0.1 136 10/4/2025