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Merged
ignatandrei merged 3 commits into from
Apr 7, 2026
Merged

type providers #469

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322bb81
type providers
ignatandrei Apr 4, 2026
02dd1d2
update to latest version
ignatandrei Apr 7, 2026
5b5a35e
Update description.json
ignatandrei Apr 7, 2026
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22 changes: 22 additions & 0 deletions v2/rscg_examples/Maestria.TypeProviders/description.json
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{
"generator":{
"name":"Maestria.TypeProviders",
"nuget":[
"https://www.nuget.org/packages/Maestria.TypeProviders/"
],
"link":"https://github.com/MaestriaNet/TypeProviders",
"author":"Fábio Monteiro Naspolini",
"source":"https://github.com/MaestriaNet/TypeProviders"
},
"data":{
"goodFor":["Generating strong typed code from Excel."],
"csprojDemo":"DemoExcel.csproj",
"csFiles":["Program.cs","MyExcelPerson.cs","Person.cs"],
"excludeDirectoryGenerated":[""],
"includeAdditionalFiles":[""]
},
"links":{
"blog":"",
"video":""
}
}
3 changes: 3 additions & 0 deletions v2/rscg_examples/Maestria.TypeProviders/src/DemoExcel.slnx
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<Solution>
<Project Path="DemoExcel/DemoExcel.csproj" />
</Solution>
29 changes: 29 additions & 0 deletions v2/rscg_examples/Maestria.TypeProviders/src/DemoExcel/DemoExcel.csproj
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<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net10.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>

<ItemGroup>
<PackageReference Include="ClosedXML" Version="0.105.0" />
<PackageReference Include="Maestria.Extensions" Version="3.7.2.0" />
<PackageReference Include="Maestria.TypeProviders" Version="1.3.1">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
</ItemGroup>

<ItemGroup>
<None Update="MyExcel.xlsx">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</None>
</ItemGroup>

<PropertyGroup>
<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
<CompilerGeneratedFilesOutputPath>$(BaseIntermediateOutputPath)\GX</CompilerGeneratedFilesOutputPath>
</PropertyGroup>
</Project>
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6 changes: 6 additions & 0 deletions v2/rscg_examples/Maestria.TypeProviders/src/DemoExcel/MyExcelPerson.cs
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namespace DemoExcel;

public partial class MyExcelPerson
{
public string FullName() => $"{FirstName} {LastName}";
}
10 changes: 10 additions & 0 deletions v2/rscg_examples/Maestria.TypeProviders/src/DemoExcel/Person.cs
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using System;
using System.Collections.Generic;
using System.Text;

namespace DemoExcel;

Comment on lines +1 to +6
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Copilot AI Apr 7, 2026

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The System, System.Collections.Generic, and System.Text usings are currently unused in this file. Removing them avoids unnecessary clutter and prevents unused-using warnings in stricter build configurations.

Suggested change
using System;
using System.Collections.Generic;
using System.Text;
namespace DemoExcel;
namespace DemoExcel;

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[ExcelProvider(TemplatePath = @"MyExcel.xlsx")]
public partial class MyExcelPerson
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The file name Person.cs defines MyExcelPerson. Renaming the file to match the type (or vice versa) would make the demo easier to navigate and avoid confusion when multiple models are added later.

Suggested change
public partial class MyExcelPerson
public partial class Person

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{
}
10 changes: 10 additions & 0 deletions v2/rscg_examples/Maestria.TypeProviders/src/DemoExcel/Program.cs
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using DemoExcel;

Console.WriteLine("Hello, World!");
var persons = MyExcelPersonFactory.Load("MyExcel.xlsx").ToArray();
Comment on lines +2 to +4
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Copilot AI Apr 7, 2026

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MyExcel.xlsx is loaded via a relative path. If the app is executed with a working directory different from the output folder, this will fail to find the file even though it is copied to the output. Consider building the path from AppContext.BaseDirectory (or similar) so the demo runs reliably regardless of the current directory.

Suggested change
Console.WriteLine("Hello, World!");
var persons = MyExcelPersonFactory.Load("MyExcel.xlsx").ToArray();
using System.IO;
Console.WriteLine("Hello, World!");
var excelPath = Path.Combine(AppContext.BaseDirectory, "MyExcel.xlsx");
var persons = MyExcelPersonFactory.Load(excelPath).ToArray();

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foreach (var person in persons)
{
Console.WriteLine(person.ID + person.FullName());
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Copilot AI Apr 7, 2026

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The output concatenates person.ID and person.FullName() without any delimiter, which makes the demo output hard to read (e.g., 1John Doe). Consider using string interpolation / formatting to include a separator (space, :, etc.) between the fields.

Suggested change
Console.WriteLine(person.ID + person.FullName());
Console.WriteLine($"{person.ID}: {person.FullName()}");

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}
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