Property node - Revision history

Logmanoriginal: Change object type to node instead of function

2023-08-06T08:08:50Z

Change object type to node instead of function

← Older revision		Revision as of 08:08, 6 August 2023
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	{{LabVIEW Palette Object Information\|palette=Functions Palette/Programming/Application Control{{!}}Application Control palette\|type=~~function~~\|icon=Property node.png}}		{{LabVIEW Palette Object Information\|palette=Functions Palette/Programming/Application Control{{!}}Application Control palette\|type=node\|icon=Property node.png}}

	'''Property Nodes''' are nodes that you can use in your '''Block Diagram''' to GET or SET properties on a local or remote application, VIs, and objects. Property Nodes allow you to programmatically control the properties of a '''Front Panel''' object, for example: color, visibility, position, behavior, etc.		'''Property Nodes''' are nodes that you can use in your '''Block Diagram''' to GET or SET properties on a local or remote application, VIs, and objects. Property Nodes allow you to programmatically control the properties of a '''Front Panel''' object, for example: color, visibility, position, behavior, etc.

Logmanoriginal: Clarify performance considerations

2023-08-06T08:03:08Z

Clarify performance considerations

← Older revision		Revision as of 08:03, 6 August 2023
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	Clicking on the Property, you can choose what Property you want to '''Read/Write'''. You choose if the Property Node is '''Read''' or '''Write''' by right-clicking on the Property Node selecting '''Change to Read''' or '''Change to Write'''. By default, the Property Node is set to '''Read'''.		Clicking on the Property, you can choose what Property you want to '''Read/Write'''. You choose if the Property Node is '''Read''' or '''Write''' by right-clicking on the Property Node selecting '''Change to Read''' or '''Change to Write'''. By default, the Property Node is set to '''Read'''.

	==Performance ~~Issues~~==		==Performance considerations==
	'''Property Nodes''' ~~should be used carefully~~. That's because it is ~~executed~~ in the ~~user-interface~~ thread. Using '''Property Nodes''' indiscriminately ~~in your code affects its performance~~ because Block Diagram waits while properties execute in the ~~user-interface~~. ~~If your Property Node runs in~~ a ~~SubVIs, it makes the SubVI~~ front panel to be loaded into memory. ~~Try to limit the number of Property Nodes used in your application~~.		'''Property Nodes''' of user interface objects can have a significant performance impact. That's because their execution is serialized with other operations in the UI thread. Using '''Property Nodes''' indiscriminately therefore slows down execution because the Block Diagram waits while these properties execute in the UI thread. Many properties also force a VI's front panel to be loaded into memory. This increases overall load time and memory footprint.

	~~One Property that you should avoid is~~ the '''Value ~~property~~'''~~. You should always use Controls/Indicator and its wires to Read/Write their values. If it is not possible to reach~~ the ~~terminal or wire in your code, use Queues, Notifiers, and even Local Variables to that, but '''never''' use '''Value property'''~~.		==Best practices==
			Use local variables instead of the '''Value''' properties when accessing user interface objects in the same VI.

	[[File:Captura de tela 2023-08-06 002028.png]]		[[File:Captura de tela 2023-08-06 002028.png]]

Ederson at 03:22, 6 August 2023

2023-08-06T03:22:03Z

← Older revision		Revision as of 03:22, 6 August 2023
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	Clicking on the Property, you can choose what Property you want to '''Read/Write'''. You choose if the Property Node is '''Read''' or '''Write''' by right-clicking on the Property Node selecting '''Change to Read''' or '''Change to Write'''. By default, the Property Node is set to '''Read'''.		Clicking on the Property, you can choose what Property you want to '''Read/Write'''. You choose if the Property Node is '''Read''' or '''Write''' by right-clicking on the Property Node selecting '''Change to Read''' or '''Change to Write'''. By default, the Property Node is set to '''Read'''.

			==Performance Issues==
			'''Property Nodes''' should be used carefully. That's because it is executed in the user-interface thread. Using '''Property Nodes''' indiscriminately in your code affects its performance because Block Diagram waits while properties execute in the user-interface. If your Property Node runs in a SubVIs, it makes the SubVI front panel to be loaded into memory. Try to limit the number of Property Nodes used in your application.

			One Property that you should avoid is the '''Value property'''. You should always use Controls/Indicator and its wires to Read/Write their values. If it is not possible to reach the terminal or wire in your code, use Queues, Notifiers, and even Local Variables to that, but '''never''' use '''Value property'''.

			[[File:Captura de tela 2023-08-06 002028.png]]

Ederson at 22:51, 5 August 2023

2023-08-05T22:51:21Z

← Older revision		Revision as of 22:51, 5 August 2023
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	{{~~stub~~}}		{{LabVIEW Palette Object Information\|palette=Functions Palette/Programming/Application Control{{!}}Application Control palette\|type=function\|icon=Property node.png}}

			'''Property Nodes''' are nodes that you can use in your '''Block Diagram''' to GET or SET properties on a local or remote application, VIs, and objects. Property Nodes allow you to programmatically control the properties of a '''Front Panel''' object, for example: color, visibility, position, behavior, etc.

			You can use '''Property Nodes''' in two ways: Explicit that you choose what the Control/Indicator it referees to, or Implicit that is the case when you use a Reference wired to the Property Node that indicates what is LabVIEW item you referee.

			[[File:Pl.png]]

			Clicking on the Property, you can choose what Property you want to '''Read/Write'''. You choose if the Property Node is '''Read''' or '''Write''' by right-clicking on the Property Node selecting '''Change to Read''' or '''Change to Write'''. By default, the Property Node is set to '''Read'''.

Michael_Aivaliotis at 08:39, 1 October 2007

2007-10-01T08:39:07Z

← Older revision		Revision as of 08:39, 1 October 2007
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	~~This is a~~ stub~~. Feel free to edit.~~		{{stub}}

	~~[[Category:Stubs]]~~

Eaolson: Property Node moved to Property node: change cap per MOS

2007-05-12T22:57:54Z

Property Node moved to Property node: change cap per MOS

← Older revision	Revision as of 22:57, 12 May 2007
(No difference)

Eaolson: add stub cat

2007-05-12T22:55:57Z

add stub cat

← Older revision		Revision as of 22:55, 12 May 2007
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	This is a stub. Feel free to edit.		This is a stub. Feel free to edit.

			[[Category:Stubs]]
	[[Category:~~Uncategorized~~]]

MichaelAivaliotis at 10:06, 3 April 2007

2007-04-03T10:06:41Z

← Older revision		Revision as of 10:06, 3 April 2007
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	This is a stub. Feel free to edit.		This is a stub. Feel free to edit.


			[[Category:Uncategorized]]

MichaelAivaliotis: New page: This is a stub. Feel free to edit.

2007-03-18T05:22:58Z

New page: This is a stub. Feel free to edit.

New page

This is a stub. Feel free to edit.