Object TreeView displays a tree diagram of the visual and nonvisual components you place on a form, data module, or frame.
TCustomDesignerObjTree = class(TCustomTreeView, ISprigDesigner, IDesignNotification);
ed_ObjTree
Object TreeView displays the components’ logical relationships, such as sibling, parent-child (such as a form to a check box), and property relationships (such as a dataset to its FieldDefs properties).Some of these relationships are implicit, such as a dataset component to its properties. You can create other relationships by dragging and dropping one component on top of another, if they have the possibility of a relationship. Or you can drag and drop to change the parental relationships between components.
For example, you can drag:
Some nodes in the tree diagram are shown with black-and-white icons. These nodes represent "implied" components.
Double-click the item to open component editor if there is any component editor associated with selected component.
When you right-click an item in the tree diagram, you'll see an abridged version of the component's context menu. To access the full menu, right-click on the same component in the form, data module, or frame.
Topic |
Description |
The methods of the TCustomDesignerObjTree class are listed here. | |
The properties of the TCustomDesignerObjTree class are listed here. | |
The events of the TCustomDesignerObjTree class are listed here. |
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Method |
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virtual |
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protected |
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Property |
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read only |
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Event |
TCustomDesignerObjTree Events |
Description |
Called before creation node in object tree. Allows restrict sprigs to be shown and allows changing node text. |
TCustomDesignerObjTree Methods |
Description |
Adds menu items for adding new elements. | |
Adds item of type specified at index. | |
Returns number of adding types. | |
Determines whether selected item maybe deleted. | |
Determines whether item may be moved. | |
Creates and initializes a TCustomDesignerObjTree instance. | |
Deletes selected items. | |
Destroys an instance of TCustomDesignerObjTree. | |
Initializes the component after the form file has been read into memory. | |
Moves selected item up or down. | |
Forwards notification messages to all owned components. |
TCustomDesignerObjTree Properties |
Description |
Provides indexed access to types of added items. | |
Allows direct linking to particular designer. In this case object tree will work with objects of the Designer.Root and will work even when designer is not active. | |
References root sprig item. |
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