Tree Model"
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Here we describe how to implement a tree model (<javadoc type="interface">org.zkoss.zul.TreeModel</javadoc>). For the concept about component, model and render, please refer to [[ZK_Developer's_Reference/MVC/Model/List_Model#Model-driven_Display|the Model-driven Display section]]. | Here we describe how to implement a tree model (<javadoc type="interface">org.zkoss.zul.TreeModel</javadoc>). For the concept about component, model and render, please refer to [[ZK_Developer's_Reference/MVC/Model/List_Model#Model-driven_Display|the Model-driven Display section]]. | ||
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| + | A tree model is used to control how to display a tree-like component, such as <javadoc>org.zkoss.zul.Tree</javadoc>. | ||
Instead of implementing <javadoc type="interface">org.zkoss.zul.TreeModel</javadoc> from scratch, it is suggested to extend from <javadoc>org.zkoss.zul.AbstractTreeModel</javadoc>, which will handle the data listeners transparently. | Instead of implementing <javadoc type="interface">org.zkoss.zul.TreeModel</javadoc> from scratch, it is suggested to extend from <javadoc>org.zkoss.zul.AbstractTreeModel</javadoc>, which will handle the data listeners transparently. | ||
Revision as of 04:09, 30 December 2010
Here we describe how to implement a tree model (TreeModel). For the concept about component, model and render, please refer to the Model-driven Display section.
A tree model is used to control how to display a tree-like component, such as Tree.
Instead of implementing TreeModel from scratch, it is suggested to extend from AbstractTreeModel, which will handle the data listeners transparently.
In additions, if the tree is small enough to be loaded completely, you could use the default implementation, SimpleTreeModel, which uses SimpleTreeNode to construct a tree.
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