Is there a simple or clear step on how to fill a list view from an SQLView or EXEcSproc on an EF code first project without XPO, either by a controller or an no persistent object , I have done it from Msaccess query with Xpo and it seem simple enough, I would prefer running a SQLQuery with parameters to select the information.
EF - How to show data from a stored procedure in a ListView with Entity Framework 6
Answers approved by DevExpress Support
We published XPO and EF Core-powered code examples for the most popular scenarios with XAF's non-persistent objects and data coming Stored Procedures (SP):
- How to: Display a List View With Data From a Stored Procedure With a Parameter
- How to: Display a Detail View With Data From a Stored Procedure From the Navigation
- How to: Display a List View With Data From a Stored Procedure From the Navigation
A non-persistent class is a type of business class. XAF generates a UI for this class but does not bind it to an application’s database table. You can use this class to display a List or Detail View with temporary data generated in code or loaded from storage. You can also use it to display an empty View (dialog) and process the user’s input.
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created 9 years ago
(modified 3 years ago)
Hello Boris,
You can use the ObjectContext.ExecuteStoreQuery method to get a list of non-persistent objects from a stored procedure. To get an ObjectContext instance, use the EFObjectSpace.ObjectContext property.
To show objects returned by this method, use a NonPersistentObjectSpace, as described in the How to: Display a Non-Persistent Object's List View from the Navigation topic. Here is an example:
C#[DomainComponent]
public class ContactFromSproc {
public string FirstName { get; set; }
public string LastName { get; set; }
}
public class ViewController1 : ViewController {
public ViewController1() {
PopupWindowShowAction showDataFromSprocAction = new PopupWindowShowAction(this, "ShowDataFromSproc", DevExpress.Persistent.Base.PredefinedCategory.View);
showDataFromSprocAction.CustomizePopupWindowParams += showDataFromSprocAction_CustomizePopupWindowParams;
}
void showDataFromSprocAction_CustomizePopupWindowParams(object sender, CustomizePopupWindowParamsEventArgs e) {
NonPersistentObjectSpace nonPersistentObjectSpace = (NonPersistentObjectSpace)Application.CreateObjectSpace(typeof(ContactFromSproc));
nonPersistentObjectSpace.ObjectsGetting += nonPersistentObjectSpace_ObjectsGetting;
e.View = Application.CreateListView(nonPersistentObjectSpace, typeof(ContactFromSproc), true);
}
void nonPersistentObjectSpace_ObjectsGetting(object sender, ObjectsGettingEventArgs e) {
EFObjectSpace persistentObjectSpace = null;
bool disposePersistentObjectSpace = false;
if (this.ObjectSpace is EFObjectSpace) {
persistentObjectSpace = (EFObjectSpace)ObjectSpace;
} else {
persistentObjectSpace = (EFObjectSpace)Application.CreateObjectSpace(typeof(Contact));
disposePersistentObjectSpace = true;
}
e.Objects = persistentObjectSpace.ObjectContext.ExecuteStoreQuery<ContactFromSproc>("GetContacts").ToList();
if (disposePersistentObjectSpace) {
persistentObjectSpace.Dispose();
}
}
}
public partial class EFDemoWinApplication : WinApplication {
protected override void CreateDefaultObjectSpaceProvider(CreateCustomObjectSpaceProviderEventArgs args) {
if(args.Connection != null) {
args.ObjectSpaceProvider = new EFObjectSpaceProvider(typeof(EFDemoDbContext), TypesInfo, null, (DbConnection)args.Connection);
} else {
args.ObjectSpaceProvider = new EFObjectSpaceProvider(typeof(EFDemoDbContext), TypesInfo, null, args.ConnectionString);
}
args.ObjectSpaceProviders.Add(new NonPersistentObjectSpaceProvider());
}
Let me know if you need further assistance.
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(12)
Despite being 9 years old, this code is still actual, and you can safely use it in your applications. Here is the modified example:
C#public class ViewController1 : ViewController {
public ViewController1() {
SimpleAction showDataFromSprocAction = new SimpleAction(this, "ShowDataFromSproc", DevExpress.Persistent.Base.PredefinedCategory.View);
showDataFromSprocAction.Execute += showDataFromSprocAction_Execute;
}
void showDataFromSprocAction_Execute(object sender, SimpleActionExecuteEventArgs e) {
NonPersistentObjectSpace nonPersistentObjectSpace = (NonPersistentObjectSpace)Application.CreateObjectSpace(typeof(ContactFromSproc));
nonPersistentObjectSpace.ObjectsGetting += nonPersistentObjectSpace_ObjectsGetting;
e.ShowViewParameters.CreatedView = Application.CreateListView(nonPersistentObjectSpace, typeof(ContactFromSproc), true);
}
void nonPersistentObjectSpace_ObjectsGetting(object sender, ObjectsGettingEventArgs e) {
EFObjectSpace persistentObjectSpace = (EFObjectSpace)Application.CreateObjectSpace(typeof(Contact));
e.Objects = persistentObjectSpace.ObjectContext.ExecuteStoreQuery<ContactFromSproc>("GetContacts").ToList();
persistentObjectSpace.Dispose();
}
}