JVCL Help:IJvDataConsumerItemState
JVCL Help: IJvDataConsumerItemState Interface
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IJvDataConsumerItemState
run\JvDataProviderIntf.pas
Summary
Data consumer support interface to determine item states at the consumer side.
Pascal
run\JvDataProviderIntf.pas
IJvDataConsumerItemState = interface;
Description
IJvDataConsumerItemState is a consumer support interface to retrieve Enabled, CHecked and/or Visible state of an item at the consumers side.
When a provider or consumer support interface needs one of the aforementioned states, it will first request the state from the consumer (if it supports the IJvDataConsumerItemState interface). If this interface is not supported or if the returned state equals disNotUsed, the state is requested from the IJvDataItemStates interface of the item.
Each of the states can be one of "False", "True", "Indetermined" or "Not used". The consumer is responsible of setting the appropriate rendering options based on these settings but is not required to handle them. In addition a consumer may override the setting of the item at its discretion.
See Also
IJvDataConsumer, IJvDataItem, IJvDataItemStates
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