TreeControl - Revision history

Thomas Linder Puls: Category

2013-10-28T09:45:11Z

Thomas Linder Puls: Category

2012-12-02T22:45:42Z

Thomas Linder Puls: Image

2010-06-09T14:32:54Z

Image

← Older revision		Revision as of 16:32, 9 June 2010
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			[[Image:treeControlDemo4.png\|frame\|Demo4 with locks and colors]]

	The <vp>treeControl</vp> is a generic model based control. Meaning:		The <vp>treeControl</vp> is a generic model based control. Meaning:

Thomas Linder Puls: corrections

2010-06-09T14:14:04Z

corrections

← Older revision		Revision as of 16:14, 9 June 2010
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	~~siatteThe~~ <vp>treeControl</vp> ~~(introduced in Visual Prolog 7.3 Commercial Edition)~~ is a generic model based control. Meaning:		The <vp>treeControl</vp> is a generic model based control. Meaning:

	* Generic: it contains data of your choice		* Generic: it contains data of your choice
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	This article is related to the treeControlDemo example that comes with Visual Prolog Commercial Edition. But some of the code in the article is simplified other code may be improved (improvements will be reflected in later versions of the example).		This article is related to the treeControlDemo example that comes with Visual Prolog Commercial Edition. But some of the code in the article is simplified other code may be improved (improvements will be reflected in later versions of the example).

			The <vp>treeControl</vp> was introduced in Visual Prolog 7.3 Commercial Edition.

	== Basic concepts ==		== Basic concepts ==

Thomas Linder Puls: Elaborate

2010-06-09T14:12:48Z

Elaborate

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Thomas Linder Puls: Category

2010-06-08T07:54:19Z

Thomas Linder Puls: Elaborate

2010-06-07T14:45:34Z

Elaborate

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Thomas Linder Puls: elaborate

2010-06-07T13:16:22Z

elaborate

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Thomas Linder Puls: Initial Draft

2010-05-31T23:15:05Z

Initial Draft

New page

The new treeControl is generic meaning that the entities in the treeControl have the type you decide. In the example that comes with Visual Prolog 7.3 the control is used four different ways. In one of them the treeControl simply contains strings that represent directory paths. The program deal with paths not with some artificial node-ids. So the programmer works directly with the "concepts" without some strange ID level in-between. The new treeControl is also model based meaning that the programmer creates a model describing the tree rather than a complete data representation. This has the advantage that the tree accessed lazily: the children of nodes are requested when they are needed (i.e. when their parent are expanded). Another advantage is that the treeControl is driven by events from the model, so changes in the model is automatically reflected in the treeControl. If a single model is shown by several treeControl's changes will automatically be shown in all the treeControls.

← Older revision		Revision as of 11:45, 28 October 2013
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	]), PntForm, align_left).</vip>		]), PntForm, align_left).</vip>

	[[Category:~~GUI~~]]		[[Category:Controls]]

← Older revision		Revision as of 00:45, 3 December 2012
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	txt(menu_rename_subdir, "Rename Directory...", noAccelerator, b_true, mis_none, [])		txt(menu_rename_subdir, "Rename Directory...", noAccelerator, b_true, mis_none, [])
	]), PntForm, align_left).</vip>		]), PntForm, align_left).</vip>

			[[Category:GUI]]

← Older revision		Revision as of 09:54, 8 June 2010
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	In Demo3 we want to have <vp>dirNode</vp>'s in the tree.		In Demo3 we want to have <vp>dirNode</vp>'s in the tree.

			[[Category:Tutorials]]
			[[Category:Controls]]