jtree

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How to replace a JTree component in Java Swing?

I am wondering how to make the following code in replacing the JTree component working. Currently I am getting a java.lang.NullPointerException[详细]

2023-03-22 05:50 分类：问答
Java: How to select all descendants of a given ancestor on the Jtree?

I would like to select an ancestor DefaultMutableTreeNode and get all descendant DefaultMutableTreeNode of this ancestor in the JTree.[详细]

2023-03-20 02:57 分类：问答
Partial Selection in JTree using checkbox for every node

I have a application which uses a JTree. For each n开发者_Python百科ode in the tree, there is a checkbox attached to the node using a customized TreeCellRenderer. When some items of a node are selecte[详细]

2023-03-19 20:52 分类：问答
Renaming the JTree Node Manually in Java

I have created a jtree with the root node \"RootNode\" and some other n开发者_开发百科odes like \"Node1\",\"Node2\", Node3\".[详细]

2023-03-19 10:13 分类：问答
Java: JTree with plus/minus icons for expansion and collapse?

How do I make my Jtree look like something below, with plus and minus icons that allows expansion and collapse?[详细]

2023-03-18 01:45 分类：问答
Show 'expand' control on JTree nodes after children are removed?

I have a DefaultTreeModel containing a subclass of DefaultMutableTreeNode. I have only overridden isLeaf() to always return true because I lazily load the children when the node is expanded. Then, whe[详细]

2023-03-17 16:05 分类：问答
Swing JTree: It seems to be impossible to properly send treeStructureUpdated events to model listeners

I have a JTree displaying my own TreeModel. The TreeModel is loaded \"on demand\" from a database (somewhat ugly since partially done on the EDT, but thats not my issue here). There is a menu which wi[详细]

2023-03-17 05:20 分类：问答
Add JPopup menu by right clicking on node in Swing in Java

In GUI,I am displaying one JTree at the left hand side of JPanel. Now for each Node(leaf), on Mouse right click I want to display JPopup menu asking for displaying the statistics about Node in right J[详细]

2023-03-14 19:06 分类：问答
Getting String value on jTree Java using Netbeans IDE

I`m having a homework to create multi room selection for hotel. My idea is by using jTree so I can select more more than one child of jTree. When we use jTree we can select more than 1 option by using[详细]

2023-03-14 10:13 分类：问答
Indexing JTree nodes

I would like to create an index (1, 1.开发者_Python百科2, 1.3, 2.1 etc.) for each node of a JTree at the time of adding the new node,[详细]

2023-03-12 04:38 分类：问答