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V24.2
.NET 8.0+

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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.v24.2.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