Refresh the LeftSide Jtable When Click On node in rightSide JTree Node

[Nanditha Parripati]

Hi,

I am facing problem when i need to refresh the JTable data when i click on any of the node in JTree. Can Any one help me in solving the issue. I am Pasting the code below.

   

import javax.swing.*;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.TreePath;
import java.util.Vector;
import java.awt.*;

public class JTreeExample extends JApplet{
	Container c = getContentPane();
	String treeNodeValue = "";
	JTable table = null ;
	public void init(){
		c.setLayout(new GridLayout(1,2));
		Object[] obj = {""};
		Vector treeData = new Vector(){
			public String toString(){
				return "Top Level";
			}
		};
		treeData.addElement("Pdf Document");
		treeData.addElement("xls Document");
		treeData.addElement("word Document");
		obj[0] = treeData;
		final JTree tree = new JTree(obj);
		JScrollPane jsp = new JScrollPane(tree,ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
		c.add(jsp);
		
		final Vector heading = new Vector();
		heading.addElement("Doc Name");
		heading.addElement("Image");
		heading.addElement("Page No");
		heading.addElement("Text");
		final Vector data = new Vector();
		tree.getSelectionModel().addTreeSelectionListener(new TreeSelectionListener(){
			@Override
			public void valueChanged(TreeSelectionEvent e) {
				// TODO Auto-generated method stub
				TreePath path = tree.getSelectionPath();
				treeNodeValue = path.getPathComponent(path.getPathCount()-1).toString().trim();
				System.out.println(path.getPathComponent(path.getPathCount()-1));
				data.clear();
				for(int i=0;i<=10;i++){
					Vector tempData = new Vector();
					tempData.addElement(treeNodeValue);
					tempData.addElement(treeNodeValue +" Image");
					tempData.addElement("13");
					tempData.addElement("Annotation Text");
					data.addElement(tempData);
				}
				table =  new JTable(data,heading);
				
			}
		});
		if(treeNodeValue != null && !treeNodeValue.equals("")){

		}else{
			for(int i=0;i<=10;i++){
				Vector tempData = new Vector();
				tempData.addElement("Document");
				tempData.addElement("Image");
				tempData.addElement("13");
				tempData.addElement("Annotation Text");
				data.addElement(tempData);
			}
			table =  new JTable(data,heading);
		}
		JScrollPane jsp1 = new JScrollPane(table,ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
		c.add(jsp1);
	}
}

 

[Swastik Dey]

Use a DefaultTableModel to reset the data

 



import javax.swing.*;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.TreePath;
import java.util.Vector;
import java.awt.*;
import javax.swing.table.*;
public class JTreeExample extends JApplet{
	Container c = getContentPane();
	String treeNodeValue = "";
	JTable table = null ;
	DefaultTableModel dtm=new DefaultTableModel();



	public void init(){

		table=new JTable(dtm);
		JScrollPane jsp1 = new JScrollPane(table,ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
		c.setLayout(new GridLayout(1,2));
		Object[] obj = {""};
		Vector treeData = new Vector(){
			public String toString(){
				return "Top Level";
			}
		};
		treeData.addElement("Pdf Document");
		treeData.addElement("xls Document");
		treeData.addElement("word Document");
		obj[0] = treeData;
		final JTree tree = new JTree(obj);
		JScrollPane jsp = new JScrollPane(tree,ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
		c.add(jsp);
		c.add(jsp1);
		final Vector heading = new Vector();
		heading.addElement("Doc Name");
		heading.addElement("Image");
		heading.addElement("Page No");
		heading.addElement("Text");
		final Vector data=new Vector();
		for(int i=0;i<=10;i++){
			Vector tempData = new Vector();
			tempData.addElement("Document");
			tempData.addElement("Image");
			tempData.addElement("13");
			tempData.addElement("Annotation Text");
			data.addElement(tempData);
		}
			dtm.setDataVector(data,heading);
		//final Vector data = new Vector();
		tree.getSelectionModel().addTreeSelectionListener(new TreeSelectionListener(){
			@Override
			public void valueChanged(TreeSelectionEvent e) {
				// TODO Auto-generated method stub
				TreePath path = tree.getSelectionPath();
				treeNodeValue = path.getPathComponent(path.getPathCount()-1).toString().trim();
				System.out.println(path.getPathComponent(path.getPathCount()-1));
				data.removeAllElements();
				if(treeNodeValue.equals("Pdf Document")){
					for(int i=0;i<=5;i++){
						Vector tempData = new Vector();
						tempData.addElement("PDF Document");
						tempData.addElement("Image-PDF");
						tempData.addElement("1");
						tempData.addElement("Annotation Text-PDF");
						data.addElement(tempData);
					}
				}
				else if(treeNodeValue.equals("xls Document")){
					for(int i=0;i<=3;i++){
						Vector tempData = new Vector();
						tempData.addElement("XLS Document");
						tempData.addElement("Image-XLS");
						tempData.addElement("2");
						tempData.addElement("Annotation Text-XLS");
						data.addElement(tempData);
					}
				}
				else if(treeNodeValue.equals("word Document")){
					for(int i=0;i<=2;i++){
						Vector tempData = new Vector();
						tempData.addElement("WORD Document");
						tempData.addElement("Image-WORD");
						tempData.addElement("4");
						tempData.addElement("Annotation Text-WORD");
						data.addElement(tempData);
					}
				}
				dtm.setDataVector(data,heading);

			}
		});		

	}
}


   

[Nanditha Parripati]

Hi,


Thanks a lot for your help.

Regards,
Nanditha.

[Roel De Nijs]

I think this code is a bit overhead for the scjd assignment