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CollectionSourceBase.IsObjectFitForCollection(Object) Method

Tries to determine whether the specified object satisfies the criteria contained in the CollectionSourceBase.Criteria dictionary.

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v19.1.dll

Declaration

public virtual bool? IsObjectFitForCollection(
    object obj
)
Public Overridable Function IsObjectFitForCollection(
    obj As Object
) As Boolean?

Parameters

Name Type Description
obj Object

An object that must be checked against the criteria contained in the Criteria dictionary.

Returns

Type Description
Nullable<Boolean>

true if the specified object satisfies the criteria contained in the Criteria dictionary; false if the object does not satisfies the criteria; null if it cannot be determined.

Remarks

This method returns a Nullable<Boolean>-type value. So, it can actually return null (Nothing in VB) if the specified object cannot be checked against the criteria contained in the Criteria dictionary.

When implementing a custom Collection Source, override this method to determine whether the specified object satisfies the criteria contained in the Criteria dictionary.

This method is intended for internal use.

See Also