.NET Framework 4.5.2+
.NET Framework 4.5.2+
.NET Standard 2.0+
.NET 5.0+

IObjectSpace.CreateObject(Type) Method

Creates an object of the specified type.

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v21.2.dll

Declaration

object CreateObject(
    Type type
)

Parameters

Name Type Description
type Type

A Type object which is the type of the object to be created.

Returns

Type Description
Object

An object that represents the created object of the specified type.

Remarks

The following example uses a Parametrized Action to create a new Department object and refresh the Detail View. The new department becomes available in the Contact.Department Lookup List View.

using DevExpress.ExpressApp;
using DevExpress.ExpressApp.Actions;
using DevExpress.Persistent.Base;
using MainDemo.Module.BusinessObjects;
// ...
public class AddDepartmentController : ObjectViewController<DetailView, Contact> {
    public AddDepartmentController() {
        ParametrizedAction addDepartmentAction = new ParametrizedAction(
            this, "AddDepartment", PredefinedCategory.Edit, typeof(string));
        addDepartmentAction.Execute += AddDepartmentAction_Execute;
    }
    private void AddDepartmentAction_Execute(object sender, ParametrizedActionExecuteEventArgs e) {
        using(IObjectSpace objectSpace = Application.CreateObjectSpace(typeof(Department))) {
            Department department = objectSpace.CreateObject<Department>();
            department.Title = e.ParameterCurrentValue as string;
            objectSpace.CommitChanges();
        }
        View.Refresh();
    }
}

If you implement the IObjectSpace interface in the BaseObjectSpace class’ descendant, you don’t have to override the CreateObject method entirely. The BaseObjectSpace.CreateObject method invokes a protected virtual BaseObjectSpace.CreateObjectCore method and then sets the returned object modified by calling the BaseObjectSpace.SetModified method for it. So, you should only override the CreateObjectCore method.

The created object will be saved to the database when calling the IObjectSpace.CommitChanges method.

The following code snippets (auto-collected from DevExpress Examples) contain references to the CreateObject(Type) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

See Also