JVCL Help:GetItemEnabledState

 JVCL Help: GetItemEnabledState function

JVCL Functions

► JvDataProvider.pas Functions

[+] JvDataProvider.pas Functions

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Summary

Retrieve the enabled state of the specified item.

run\JvDataProvider.pas

Pascal

 run\JvDataProvider.pas

 functionGetItemEnabledState(Item: IJvDataItem): TDataItemState;

Parameters

Parameters	Description
Item: IJvDataItem	Item to determine the enabled state of.

run\JvDataProvider.pas

Description

GetItemEnabledState determines the enabled state for the specified item. The following rules apply to determine the enabled state:

• If a consumer is selected into the provider and the consumer supports theIJvDataConsumerItemState interface, the enabled state is retrieved from the IJvDataConsumerItemState.Enabled method.
• If the above did not apply or resulted in a state other than disFalse and the specified item supports the IJvDataItemStates, the state is copied from the IJvDataItemStates.Enabled property.
• If both of the rules above did not apply, the result will be disUnused.
  

This function is often used by consumer sub services and/or provider implementations (e.g. rendering implementations) to determine the correct state for drawing.

run\JvDataProvider.pas

See Also

GetItemCheckedState, GetItemVisibleState, IJvDataConsumerItemState, IJvDataItemStates

run\JvDataProvider.pas

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