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我已閱讀了一堆已經問過的問題,但尚未看到一個確切的答案。我試圖在jTree上設置選擇,試圖爲我的Java項目創建一種API。我可以輕鬆地在父節點上設置選擇,例如: myTree.setSelection(1);如何以編程方式在jTree子上設置選擇
無法關閉子節點上的任何葉子。我有一個散步功能,我正在尋找一個特定的字符串。當我用正在查找的字符串到達節點時,我設法返回一個Object []。但是我不能將它轉換成Treepath來使用myTree.setSelectionPath(path)。任何人都可以幫忙嗎?我很感激。
//My call
TreeModel model = jTree1.getModel();
Object getNode = myWalk(model);
jTree1.setSelectionPath((TreePath) getNode);
//this throw an error stating that Object[] can't be converted to a path.
public Object[] myWalk(TreeModel model, String s, String t){
DefaultMutableTreeNode root = (DefaultMutableTreeNode) model.getRoot();
DefaultMutableTreeNode child;
TreeNode[] returnPath = null;
int childrenCount = root.getChildCount();
for(int i = 0; i < childrenCount; i++){
child = (DefaultMutableTreeNode) root.getChildAt(i);
if(child.toString().equals(s)){
System.out.println(child.toString());
int secondChildCount = child.getChildCount();
DefaultMutableTreeNode secondLevelChild;
for(int y = 0; y < secondChildCount; y++){
secondLevelChild = (DefaultMutableTreeNode) child.getChildAt(y);
if(secondLevelChild.toString().equals(t)){
System.out.println(secondLevelChild.toString());
returnPath = secondLevelChild.getPath();
//returnPath = new TreePath(new Object[] {root.toString(), child.toString(), secondLevelChild.toString()});
}
}
}
}
return returnPath;
}
有一個setSelectionPath這需要將TreePath。由於您先掃描樹深度,您可以簡單地重新構建TreePath。 – 2017-07-19 02:06:58