Addiing ComboBox in JTable

Question

Can any one help mee how to add combobox in jtable i am using Abstracttablemodel.

Answer 1

yes these the code where i am setting my editor and combobox
import java.sql.ResultSet;
import java.sql.*;
import java.util.*;
import javax.swing.JTable;
import javax.swing.table.TableCellRenderer;
import javax.swing.*;
import javax.swing.table.*;
import java.awt.*;
public class clsCustMast extends clsMSGen{
    String strQuery,
             querySrch1,
             querySrch2;
    String strTab1Rec;
    String strTableName;
    String []strTmp;
    public clsValidate val;
    public boolean flgInsrtTab1,
                       flgInsrtTab2,
                       flgErr;
    public String strCmbFrom,
                         strCmbTo;
   /* public JComboBox cmbRgn,
                          cmbCntry;*/
    int        intSlctdTab;     
    private int intCol,
                    rowCntTab1,
                    rowCntTab2;
     final static int CNS_TAB1 = 0;
     final static int CNS_TAB2 = 1;
     final static String CNS_MANDT = "1";
     final static boolean CNS_FALSE = false;
     final static boolean CNS_TRUE = true;
     final static String strUserPassword  = "manager";          
    public void disp(){
        super.disp();
        flgInsrtTab1 = CNS_FALSE;
        flgInsrtTab2 = CNS_FALSE;
        // to get all region ids from the  tble T_regionmast and populate it in the cmbReg to be displayed in the grid
        populateRegionCntryCmb();
        // to get all region ids from the  tble T_countrymast and populate it in the cmbCntry to be displayed in the grid
        //populateCntryCmb();
        intCol = 0;
        strQuery = "select a.f_custid,a.f_postcd,a.f_faxno,a.f_phoneno,a.f_regionid," +
                  " a.f_cntryid, a.f_delflag from t_custmast a,t_custtran b" +
                  " where a.f_custid = b.f_custid" +
                  " and b.f_langid = 'EN'";
        //System.out.println(strQuery);
        ResultSet Tab1Data = prcQuery(strQuery);
        try{
             ResultSetMetaData rmdTab1Dt = Tab1Data.getMetaData();
             intCol = rmdTab1Dt.getColumnCount();
             ++intCol;
             strTmp = new String[intCol+1];
             //JButton btn1;
             while (Tab1Data.next()){
                  String [] record = new String[intCol];
                  //Object [] record = new Object[intCol];
                  //btn1 = new JButton("C");
                  record[0] = new JButton("B").toString();
                  //record[0] = new Boolean(false);
                  for(int i=1; i<intCol; i++)
                 record= Tab1Data.getString(i);
          if (i==1)
cmbFrom.addItem(record[i]);
cmbTo.addItem(record[i]);
// System.out.println(record[i]);
model1.addRow(record);
model1.fireTableChanged(null);      
catch(SQLException ex)
     System.out.println("Error1");
ex.printStackTrace();
strQuery = "select f_langid, b.f_custname, f_city, f_address " +
          "from t_custmast a ,T_custtran b where " +
          "a.f_custid = b.f_custid" +
                    " and b.f_langid = 'EN'";
ResultSet Tab2Data = prcQuery(strQuery);
try{
intCol = 0;     
ResultSetMetaData rmdTab2Dt = Tab2Data.getMetaData();
intCol = rmdTab2Dt.getColumnCount();
while (Tab2Data.next()){
String [] record = new String[intCol];
for(int i=0; i<intCol;i++)
record[i]=Tab2Data.getString(i+1);
model2.addRow(record);
model2.fireTableChanged(null);
catch(SQLException ex)
     System.out.println("Error2");
ex.printStackTrace();
System.out.println(intCol);
//Connect the database and Returns the resultset corresponding to passed query     
     public ResultSet prcQuery(String strQuery){
          ResultSet resultQuery = dbCon.doQuery(strQuery);
          return resultQuery;
     public void populateRegionCntryCmb(){
          cmbRgn = new JComboBox();
          cmbCntry = new JComboBox();
          String queryRgn = "select f_regionid,f_cntryid from t_regionmast";
          ResultSet rsRgn = prcQuery(queryRgn);
          //String[] items = { "one", "two", "three", "four" };
          try{
               while(rsRgn.next()){
                    //cmbRgn.addItem(rsRgn.getString(1));
                    cmbCntry.addItem(rsRgn.getString(2));
                    //System.out.println(rsRgn.getString(1)+ " " + rsRgn.getString(2));
          }catch(SQLException ex)
{             System.out.println("Error in region cd retrieve");
ex.printStackTrace();
          System.out.println(cmbCntry.getItemAt(0));
          //cmbCntry = new JComboBox(items);
          cmbCntry.setEditable( false );
          DefaultCellEditor dceCmbCntry = new DefaultCellEditor( cmbCntry );          
          info_table.getColumnModel().getColumn(6).setCellEditor(dceCmbCntry);
          // Set the first columm to use a ComboBox as a renderer
          info_table.getColumnModel().getColumn(6).setCellRenderer(new clsComboBoxRenderer());
     public void populateCntryCmb(){
          cmbCntry = new JComboBox();
          String queryCntry = "select f_reionid,f_cntryid from t_regionmast";
          ResultSet rsCntry = prcQuery(queryCntry);
          try{
               if(!rsCntry.next()){
                    System.out.println("No Records in Country Master Table");
               }else{
                    while(rsCntry.next()){
                         cmbCntry.addItem(rsCntry.getString(1));
                         //System.out.println(rsCntry.getString(1));
          }catch(SQLException ex)
     System.out.println("Error in region cd retrieve");
ex.printStackTrace();
          System.out.println(cmbCntry.getItemAt(1));
          cmbCntry.setEditable( false );
          DefaultCellEditor dceCmbCntry = new DefaultCellEditor( cmbCntry );          
          info_table.getColumnModel().getColumn(6).setCellEditor(dceCmbCntry);
          // Set the first columm to use a ComboBox as a renderer
          info_table.getColumnModel().getColumn(6).setCellRenderer(new clsComboBoxRenderer());
     class clsComboBoxRenderer extends JComboBox implements TableCellRenderer
          public Component getTableCellRendererComponent
                    JTable info_table, Object value, boolean isSelected,
                    boolean hasFocus, int row, int column){
                         removeAllItems();
                         addItem( value );
                         return this;     
     public void add()
          String strAdd1[],
               strAdd2[];
          intSlctdTab = tabbedPane.getSelectedIndex();
          if ( intSlctdTab == CNS_TAB1){
               if ( flgInsrtTab1 == CNS_FALSE && flgInsrtTab2 == CNS_FALSE){
                    rowCntTab1 = model1.getRowCount();
                    //add a new row for both tabs when the add button is pressed while tab1 is selected.
                    //Add a new row for the tab1
                    strAdd1 = new String[8];
                    model1.addRow(strAdd1);
                    model1.fireTableChanged(null);
                    flgInsrtTab1 = CNS_TRUE;
                    //Add a new row for the tab2
                    strAdd2 = new String[4];
                    model2.addRow(strAdd2);
                    model2.fireTableChanged(null);
                    flgInsrtTab2 = CNS_TRUE;
               }else{
                    lblStatus.setText("Save the Records and then Add New one");
          }else if(intSlctdTab == CNS_TAB2){
               if ( flgInsrtTab2 = CNS_FALSE){
                    rowCntTab2 = model2.getRowCount();
                    //When a add button is pressed while selecting the 2nd tab add new row only to 2nd tab
                    strAdd2 = new String[4];
                    model2.addRow(strAdd2);
                    model2.fireTableChanged(null);
                    flgInsrtTab2 = CNS_TRUE;
               }else{
                    lblStatus.setText("Save the Records and then Add New one");
     public void save()
          // Decalrion for varaibles in the TAB1
          String strCustId,
               strDelFlg,
               strPostCd,
               strFaxNo,
               strPhNo,
               strRgnId,
               strCntryId;
boolean flag;                              
          //Assigning the values of the selected row to the corresponding fields
strCustId = model1.getValueAt(rowCntTab1,1).toString();
strPostCd = model1.getValueAt(rowCntTab1,2).toString();
strFaxNo = model1.getValueAt(rowCntTab1,3).toString();
strPhNo = model1.getValueAt(rowCntTab1,4).toString();
strRgnId = model1.getValueAt(rowCntTab1,5).toString();
strCntryId = model1.getValueAt(rowCntTab1,6).toString();
     strDelFlg = model1.getValueAt(rowCntTab1,7).toString();
     flgErr = CNS_FALSE;
     //Validation for mandatory field F_CUSTID
     flag = clsValidate.mandt(CNS_MANDT,strCustId);
if (flag == CNS_FALSE){
          lblStatus.setText("Please Enter Values for Cust Id Field");
          flgErr = CNS_TRUE;
//Validation for Mandatory field F_DELFLAG
flag = clsValidate.mandt(CNS_MANDT,strDelFlg);
if (flag == CNS_FALSE){
          lblStatus.setText("Please Enter Values for Delete Flag Field");
          flgErr = CNS_TRUE;
// if no error occurs process the insert process
if (flgErr == CNS_FALSE){
          String sqlInsrtT1;
          sqlInstrtT1 = "Insert into t_custmast'" + ( "'" +
                         " f_custid,f_delflag,f_postcd,f_faxno,f_phoneno," +
                              "f_regionid,f_cntryid '" +) "'" +
                              "(strCustId,strDelFlg,strPostCd,strFaxNo,strPhNo,strRgnId,strCntryId)";
          strTableName = "t_custmast";
     //     sqlInsrtT1 = "insert into t_custmast*/
     /*     StringBuffer InsertSQLT1 = new StringBuffer();
          strTableName = "t_custmast";
          InsertSQLT1.append("INSERT INTO " + strTableName );
          InsertSQLT1.append(" VALUES (");
               int colCntTab1 = model1.getColumnCount();
               System.out.println(colCntTab1);
          // for (int i=0; i < colCntTab1-1; i++) {
               int i = 0;
               System.out.println("Value at 2,1 " + model1.getValueAt(2,7));
               /* while(i < colCntTab1){
               System.out.println(" "+ i);
               //System.out.print( model1.getValueAt(2,i));
          //     InsertSQLT1.append(model1.getValueAt(rowCntTab1,i));
               InsertSQLT1.append(model1.getValueAt(2,i));
               if ( i != colCntTab1-1) {
                    InsertSQLT1.append(",");     
               }else{
                    InsertSQLT1.append(");");
               i++;
          //InsertSQLT1.append(");");
          // System.out.println( model1.getValueAt(rowCntTab1,7));
System.out.println(InsertSQLT1.toString());*/
public void delete(){}
public void cancel(){}
public void goTran(){}
public void Search(){
     intSlctdTab = tabbedPane.getSelectedIndex();
     if (intSlctdTab == CNS_TAB1 ){
          System.out.println(intSlctdTab);
querySrch1 = "select a.f_custid,a.f_postcd,a.f_faxno,a.f_phoneno,a.f_regionid,"
     + " a.f_cntryid, a.f_delflag from t_custmast a,t_custtran b"
                    + " where a.f_custid = b.f_custid"
                    + " and b.f_langid = 'EN'"
                    + " and a.f_custid between '" + strCmbFrom + "'"
                    + " and '" + strCmbTo + "'";
     searchCondnTab1(querySrch1);
     intSlctdTab = 3;
if ( intSlctdTab == CNS_TAB2 ){      
querySrch2 = "select f_langid, b.f_custname, f_city, f_address"
                    + " from t_custmast a ,T_custtran b "
                    + " where a.f_custid = b.f_custid"
                    + " and b.f_langid = 'EN'"
                    + " and a.f_custid between '" + strCmbFrom + "'"
                    + " and '" + strCmbTo + "'";                     
          searchCondnTab2(querySrch2);
          intSlctdTab = 3;
public void cmbFromSrch(){
     strCmbFrom = ((String)cmbFrom.getSelectedItem()).trim();
     System.out.println("Combo1 : " + strCmbFrom);
public void cmbToSrch(){
     strCmbTo = ((String)cmbTo.getSelectedItem()).trim();
     System.out.println("Combo2 : "+ strCmbTo);
     public void searchCondnTab1(String querySrch){
          System.out.println("Tab1 : " + querySrch);
ResultSet rsSrchTab1 = prcQuery(querySrch);
try{
     ResultSetMetaData rmdSrchTab1 = rsSrchTab1.getMetaData();
     intCol = rmdSrchTab1.getColumnCount();
     //increase the column count by one for the button
     ++intCol;
     //remove all datas before fetching records according to the conditions
     model1.vctData.removeAllElements();
     //adding records to the vector after fetching the records
     while (rsSrchTab1.next()){
          String [] record1 = new String[intCol];
          record1[0] = new JButton("B").toString();
          for(int i=1; i<intCol;i++)
record1[i]= rsSrchTab1.getString(i);     
model1.addRow(record1);
model1.fireTableChanged(null);      
catch(SQLException ex)
     System.out.println("Error3");
ex.printStackTrace();
     public void searchCondnTab2(String querySrch){
          System.out.println("Tab2 : " + querySrch);
          ResultSet rsSrchTab2 = prcQuery(querySrch);
     try{
     ResultSetMetaData rmdSrchTab2 = rsSrchTab2.getMetaData();
     intCol = rmdSrchTab2.getColumnCount();
     //remove all datas before fetching records according to the conditions     
     model2.vctData.removeAllElements();
     //adding records to the vector after fetching the records
     while (rsSrchTab2.next()){
     String [] record2 = new String[intCol];
     for(int i=0; i<intCol;i++)
     record2[i]= rsSrchTab2.getString(i+1);
     model2.addRow(record2);
     model2.fireTableChanged(null);     
     catch(SQLException ex)
          System.out.println("Error4");
     ex.printStackTrace();
     public static void main(String args[]){
     clsCustMast objCust = new clsCustMast();
     objCust.strUserid = "SIVAGURU";
     objCust.strTab1Name = "Basic";
     objCust.strTab2Name = "Details";
     objCust.strTitle = "Customer Maintenance";
          objCust.Tran_code = "XD01";
          objCust.strClsId = "clsCustMast";
          objCust.strLangid = "EN";
     objCust.connectDbase();
     objCust.disp();