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V24.1
.NET 6.0+

CompositeObjectSpace.IsKnownType(Type, Boolean) Method

Checks whether the Object Space (or any Object Space from its AdditionalObjectSpaces collection) can handle objects of the specified type.

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v24.1.dll

NuGet Package: DevExpress.ExpressApp

Declaration

public bool IsKnownType(
    Type objectType,
    bool checkAdditionalObjectSpaces
)

Parameters

Name Type Description
objectType Type

The type that this method checks.

checkAdditionalObjectSpaces Boolean

Indicates if the method should also check Object Spaces from the AdditionalObjectSpaces collection.

Returns

Type Description
Boolean

true if the Object Space (or any Object Space from its AdditionalObjectSpaces collection) can handle objects of the specified type.

Remarks

The following example demonstrates how to use this property in Application Builder code:

File: MySolution.Blazor.Server/Startup.cs, MySolution.Win/Startup.cs, MySolution.WebApi/Startup.cs

using DevExpress.ExpressApp;
// ...
builder.ObjectSpaceProviders.Events.OnObjectSpaceCreated = context => {
    var nonPersistentObjectSpace = context.ObjectSpace as NonPersistentObjectSpace;
    if (nonPersistentObjectSpace != null) {
        if (!nonPersistentObjectSpace.IsKnownType(typeof(Person), true)) {
            // ...
        }
    }
};
// ...

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the IsKnownType(Type, Boolean) method.

Note

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See Also