https://github.com/nicogis/devartxaf
A custom T4 template designed for use with the DevExpress eXpressApp Framework (XAF)
https://github.com/nicogis/devartxaf
devart devexpress xaf-blazor
Last synced: 15 days ago
JSON representation
A custom T4 template designed for use with the DevExpress eXpressApp Framework (XAF)
- Host: GitHub
- URL: https://github.com/nicogis/devartxaf
- Owner: nicogis
- Created: 2025-06-05T15:41:17.000Z (8 months ago)
- Default Branch: master
- Last Pushed: 2025-06-06T07:43:17.000Z (8 months ago)
- Last Synced: 2025-06-06T08:25:15.164Z (8 months ago)
- Topics: devart, devexpress, xaf-blazor
- Homepage:
- Size: 3.29 MB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# 🛠 Custom T4 Template Setup for Devart EF Core with DevExpress XAF
## ✅ Requirements
Before you start, make sure you have the following installed:
- **DevExpress XAF (eXpressApp Framework) (25.1.x)**
- [DevExpress XAF](https://www.devexpress.com/products/net/application_framework/)
- **Devart Entity Developer (Edition for Entity Framework) (7.3.235)**
- [Devart Entity Developer](https://www.devart.com/entitydeveloper/entity-framework-core-designer.html)
---
## 📁 Template Location
There are two files:
- `.tmpl` (T4 template file)
- `.xml` (metadata)
Copy the two files into the folder located at:
```
C:\Program Files (x86)\Common Files\Devart\EntityDeveloper\Shared Templates
```
---
## 🔧 Step-by-Step Instructions
1. **Create an app using the XAF wizard.**
2. **Save, close, and reopen the project.**
3. **Create a new Devart EF Core model file.**
- Right-click > Add > New Item
- Choose: `Data` or `ASP.NET Core > Data`
- Select: **Devart EF Core Model**
4. **Select "Database First" approach.**
5. **Configure the SQL Server connection.**
- Choose server and database.
- In **Advanced**, set the following:
```
MultipleActiveResultSets=True
Encrypt=True
TrustServerCertificate=True
```
6. **Generate model from database.**
- Select the desired tables or select them later.
7. **Leave the default settings**
8. **Configure context and namespace:**
- Namespace context/entities: <YourNameProject>.Module.BusinessObjects
- Context Class Name: <YourNameProject>EFCoreDbContext
9. **Add the custom template:**
- Click the first "Add Template" button
- From `Shared`, choose: **EF Core XAF**
- Remove any other existing template
10. **Click "Finish" to complete the setup.**
11. **Change code in XAF wizard**
```csharp
//[TypesInfoInitializer(typeof(TelemacoContextInitializer))]
public partial class TelemacoEFCoreDbContext : DbContext {
//public TelemacoEFCoreDbContext(DbContextOptions options) : base(options) {
//}
//public DbSet ModulesInfo { get; set; }
partial void OnModelCreatingPartial(ModelBuilder modelBuilder)
{
modelBuilder.UseDeferredDeletion(this);
modelBuilder.UseOptimisticLock();
modelBuilder.SetOneToManyAssociationDeleteBehavior(DeleteBehavior.SetNull, DeleteBehavior.Cascade);
modelBuilder.HasChangeTrackingStrategy(ChangeTrackingStrategy.ChangingAndChangedNotificationsWithOriginalValues);
modelBuilder.UsePropertyAccessMode(PropertyAccessMode.PreferFieldDuringConstruction);
}
}
```
---
## ✅ Result
Your Devart EF Core model will now generate code that’s fully compatible with DevExpress XAF using the customized T4 template.