The Spotfire.Dxp.Data.VirtualColumn namespace contains classes used for adding virtual columns.
A virtual column is a data column that only retrieves values on-demand.
The collection of VirtualColumns available to the end-user can be extended. CustomVirtualColumnProducer for the base class that needs to be implemented in order to extend the application with new functionality.
Classes
Class | Description | |
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![]() | VirtualColumn |
A column where the values are fetched one by one as they're needed rather than all at once.
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![]() | VirtualColumnPropertyNames |
Contains property name constants for the public properties of VirtualColumn.
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![]() | VirtualColumnAvailableInputCollection |
Represents the available inputs for a virtual column producer.
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![]() | VirtualColumnAvailableInputCollectionPropertyNames |
Contains property name constants for the public properties of VirtualColumnAvailableInputCollection.
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![]() | VirtualColumnCollection |
A collection of virtual columns.
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![]() | VirtualColumnCollectionPropertyNames |
Contains property name constants for the public properties of VirtualColumnProducerCollection.
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![]() | VirtualColumnInputCollection |
Represents the inputs for one or several virtual columns.
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![]() | VirtualColumnInputCollectionPropertyNames |
Contains property name constants for the public properties of VirtualColumnInputCollection.
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![]() | VirtualColumnInputIdentifier |
Used to uniquely identify the inputs of a virtual column.
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![]() | VirtualColumnProducer |
A class which produces virtual columns.
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![]() | VirtualColumnProducerPropertyNames |
Contains property name constants for the public properties of VirtualColumnProducer.
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![]() ![]() | VirtualColumnProducerVirtualColumnInputIdentifiers |
Implement this to contain VirtualColumnInputIdentifier objects to uniquely identify each input collection in this VirtualColumnProducer.
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![]() | VirtualColumnProducerCollection |
A collection of virtual column producers.
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![]() | VirtualColumnProducerCollectionPropertyNames |
Contains property name constants for the public properties of VirtualColumnProducerCollection.
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![]() | VirtualColumnsConfigurator |
Used to add the virtual columns to a VirtualColumnProducer.
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![]() | VirtualValueRequest |
Represents the input and result for a value in a virtual column.
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![]() | VirtualValueWorkerTModel |
A class that serves as a worker for a VirtualColumnProducer.
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