How to validate cell in JTable
hi,
I am using Jtable in my program. I have to make entry in table . but I need make validation of text that i entered when focus traverse from one cell to another cell. Is there such method or event to make such validation .
Take a look at "Using an Editor to Validate User-Entered Text" in the "How to Use Tables" tutorial at:
http://java.sun.com/docs/books/tutorial/uiswing/components/table.html#validtext
Similar Messages
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i want to merge the cell in the jtable , as one cell requires more space than other kindly tell me how to do so
Try http://codeguru.earthweb.com/java/articles/139.shtml
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How to validate cells of selected rows in editable ALV
Hi,
I have created an ALV grid which is editable. Now I have entered the values in the grid, and selected some rows for which I need to validate the cells. But this is not happening. It is validating all the cells edited in the grid.
Can anyone help me...
Regards,
Satish Kanteti.Hi Satish,
Follow below steps,
1. Declare a additional field for selection flag in your internal table like below,
DATA: BEGIN OF g_t_vekp OCCURS 0,
flag(1) TYPE c, " <------ Flag for selection
venum TYPE vekp-venum,
exidv TYPE vekp-exidv,
vbeln_gen TYPE vekp-vbeln_gen,
END OF g_t_vekp.
2. Add extra parameter 'i_callback_user_command' in FM 'REUSE_ALV_GRID_DISPLAY'.
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
i_callback_program = g_r_repid
i_callback_user_command = 'USER_COMMAND' " <------ Additional parameter
is_layout = g_wa_layout
it_fieldcat = g_t_fieldcat[]
TABLES
t_outtab = g_t_vekp
EXCEPTIONS
program_error = 1
OTHERS = 2.
3. Define a form 'USER_COMMAND' like below to check or save only selected rows.
FORM user_command USING l_r_ucomm LIKE sy-ucomm l_r_selfield TYPE slis_selfield.
CASE l_r_ucomm.
*Updating database when 'Save' is pressed
WHEN '&DATA_SAVE'.
LOOP AT g_t_vekp INTO g_wa_vekp WHERE flag = 'X'. " <---- Loop through only selected rows
" Ur operation on selected records
ENDLOOP.
ENDCASE.
l_r_selfield-refresh = 'X'.
ENDFORM. "user_command
Might solve ur problem.
Thanks,
Edited by: Sap Fan on Oct 13, 2009 5:10 PM -
How can I get right data in a cell of JTable when table enter editing
how can I get right data in a cell of JTable when table enter editing
how can I get right data in a cell of JTable when table enter editing
-
How to disable a particular cell in JTable ?
I having a problem on how to set disable a particular cell in JTable. At the first place to load the JTable, I want to set some of the cell to disabled, it only will run at the first time, is there anyway to do it ?
This is the function that disable/enable cells in JTables.
Are you looking for this?
public boolean isCellEditable(int row, int col)
if(((new Integer((String)(getValueAt(row,0)).toString()).intValue()>9))&&(col==1))
return true;
if(row!=4&&col!=5)
return true;
return false;
this metod belong to the TableModel function
and what I gave you is only an example of what you can do with it.
if it return false it disable and if true it enable the cell...but I think this you allready know!
Regards Amnon -
JTable how to set cell ediatble false
- Can teach me JTable how to set cell ediatble false?
- And I'm not so understand about following method and sentence...
addRowSelectionInterval(int index0, int index1)
Adds the rows from index0 to index1, inclusive, to the current selection.
- Then what is toggle? What is the usage? How to use?
- Then how to add one more row in the Jtable?- Can teach me JTable how to set cell ediatble false?check the method isCellEditable()
Use DefaultTableModel
- And I'm not so understand about following method and sentence...
addRowSelectionInterval(int index0, int index1)
Adds the rows from index0 to index1, inclusive, to the current selection.
- Then what is toggle? What is the usage? How to use?
- Then how to add one more row in the Jtable?[JTable API|http://java.sun.com/j2se/1.5.0/docs/api/javax/swing/JTable.html] -
How do i do that? MultiLine in a cell of JTable !!!
Dear friends,
I am trying to add multiline in a cell of JTable. For that bellow code i have written, but my statement in cell displays in a line only. Code is given bellow (copy/paste/run), could anyone help me how to do that?
Regards..
Jaya.
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import javax.swing.JOptionPane;
import java.awt.*;
import java.awt.event.*;
import javax.swing.border.*;
import javax.swing.table.*;
import java.sql.*;
public class OtL extends JFrame {
public OtL()
initComponents();
private void initComponents() {
model1 = new DefaultTableModel();
btnClose = new javax.swing.JButton();
tblOt = new javax.swing.JTable(model1);
scrOt = new javax.swing.JScrollPane();
TableCellRenderer renderer = new TableRenderer();
tblOt.setDefaultRenderer(Object.class,renderer);
tblOt.setRowHeight(tblOt.getRowHeight()*3);
tblOt.setBackground(new java.awt.Color(250,225,162));
getContentPane().setLayout(null);
addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent evt) {
exitForm(evt);
btnClose.setText("CLOSE");
btnClose.setToolTipText("Close This Screen");
btnClose.setBorder(new javax.swing.border.BevelBorder(javax.swing.border.BevelBorder.RAISED));
btnClose.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
System.exit(0);
getContentPane().add(btnClose);
btnClose.setBounds(380, 470, 110, 25);
tblOt.setToolTipText("Operation Theatre Booking List");
scrOt.setViewportView(tblOt);
tableSize();
scrOt.setBorder(new javax.swing.border.LineBorder(new java.awt.Color(0, 0, 0)));
scrOt.setToolTipText("Operation Theatre Booking List");
getContentPane().add(scrOt);
scrOt.setBounds(15, 150, 770, 300);
displayOtList();
private void exitForm(java.awt.event.WindowEvent evt) {
System.exit(0);
public static void main(String args[]) {
JFrame j = new OtL();
j.setSize(800,560);
j.show();
/**********Code for displaying Operation Theater Booking List****Start Here*************/
public void displayOtList(){
Here i fire a sql query and i populate data in table.
Sometime i get more than 1 value for some column e.g Surgery Name and Surgeon Name, so
i want to display more than 1 value in the same cell. like bellow i have mentiond for
5th and 6th column. But its displayin in one line only, how can i display that in multiple line!!
I know that can be taken care with Renderer, i tried but couldn't go through. I have written TableRenderer
class for that, please help me what should i do in Renderer class.
int row1=0;
tableSize();
DefaultTableModel model1 = (DefaultTableModel)tblOt.getModel();
Object[] newRow = new Object[6];
for(int i=0;i<1;i++){
row1 = tblOt.getRowCount() + 1;
newRow[0] = "1";
newRow[1] = "10:10";
newRow[2] = "11:30";
newRow[3] = "Name Here";
newRow[4] = "Surgery Name1 \n Surgery Name2";
newRow[5] = "Dr. Amit \n Dr. Johnson";
model1.addRow(newRow);
/**********Code for displaying Operation Theater Booking List****End Here*************/
class TableRenderer extends DefaultTableCellRenderer{
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean
hasFocus, int row, int column)
super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
setOpaque(true);
return this;
/******tableSize()*****code for sizing table******start here()********/
public void tableSize(){
tblOt.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {},
new String [] {"Ot No.", "Start Time","End Time", "Patient Name", "Surgery Name","Surgeon Name"}
TableColumn column = null;
for (int i = 0; i < 6; i++) {
column = tblOt.getColumnModel().getColumn(i);
if (i == 0) {
column.setPreferredWidth(5);
if (i == 1) {
column.setPreferredWidth(15);
if (i == 2) {
column.setPreferredWidth(15);
if (i == 3) {
column.setPreferredWidth(130);
if (i == 4) {
column.setPreferredWidth(130);
if (i == 5) {
column.setPreferredWidth(130);
/******tableSize()*****code for sizing table******end here()********/
private javax.swing.JButton btnClose;
private javax.swing.JScrollPane scrOt;
private javax.swing.JTable tblOt;
private DefaultTableModel model1;
[\code]OK Filne, Thanx .. its displaying data in multiple line now.
But still there is a problem, whenever i move mouse over the table row it returns error like bellow. I am not able to findout the reason of error. I tried to put code in try{} catch{} block to avoid this error, but still its coming. Help me.....!!!!!!!!
java.lang.NullPointerException
at javax.swing.text.View.getViewIndex(View.java:1060)
at javax.swing.text.View.getToolTipText(View.java:1031)
at javax.swing.plaf.basic.BasicTextUI.getToolTipText(BasicTextUI.java:1057)
at javax.swing.text.JTextComponent.getToolTipText(JTextComponent.java:1533)
at javax.swing.JTable.getToolTipText(JTable.java:2380)
at javax.swing.ToolTipManager$insideTimerAction.actionPerformed(ToolTipManager.java:669)
at javax.swing.Timer.fireActionPerformed(Timer.java:256)
at javax.swing.Timer$DoPostEvent.run(Timer.java:190)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:167)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:437)
at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:131)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)my latest programe code is here :
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.border.*;
import javax.swing.table.*;
public class OtL extends JFrame {
public OtL()
initComponents();
private void initComponents() {
model1 = new DefaultTableModel();
btnClose = new javax.swing.JButton();
tblOt = new javax.swing.JTable(model1);
scrOt = new javax.swing.JScrollPane();
TableCellRenderer renderer = new TableRenderer();
tblOt.setDefaultRenderer(Object.class,renderer);
tblOt.setRowHeight(tblOt.getRowHeight()*3);
tblOt.setBackground(new java.awt.Color(250,225,162));
getContentPane().setLayout(null);
addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent evt) {
exitForm(evt);
btnClose.setText("CLOSE");
btnClose.setBorder(new javax.swing.border.BevelBorder(javax.swing.border.BevelBorder.RAISED));
btnClose.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
System.exit(0);
getContentPane().add(btnClose);
btnClose.setBounds(380, 470, 110, 25);
scrOt.setViewportView(tblOt);
tableSize();
scrOt.setBorder(new javax.swing.border.LineBorder(new java.awt.Color(0, 0, 0)));
getContentPane().add(scrOt);
scrOt.setBounds(15, 150, 770, 300);
displayOtList();
private void exitForm(java.awt.event.WindowEvent evt) {
System.exit(0);
public static void main(String args[]) {
JFrame j = new OtL();
j.setSize(800,560);
j.show();
public void displayOtList(){
int row1=0;
tableSize();
DefaultTableModel model1 = (DefaultTableModel)tblOt.getModel();
Object[] newRow = new Object[6];
for(int i=0;i<1;i++){
row1 = tblOt.getRowCount() + 1;
newRow[0] = "1";
newRow[1] = "10:10";
newRow[2] = "11:30";
newRow[3] = "Name Here";
newRow[4] = "Surgery Name1 \n Surgery Name2";
newRow[5] = "Dr. Amit \n Dr. Johnson";
model1.addRow(newRow);
class TableRenderer extends JTextArea implements TableCellRenderer{
public TableRenderer(){
setLineWrap(true);
setWrapStyleWord(true);
setOpaque(true);
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean
hasFocus, int row, int column)
if (isSelected) {
setForeground(tblOt.getSelectionForeground());
setBackground(tblOt.getSelectionBackground());
} else {
setForeground(tblOt.getForeground());
setFont(tblOt.getFont());
if (hasFocus) {
setBorder( UIManager.getBorder("Table.focusCellHighlightBorder") );
if (tblOt.isCellEditable(row, column)) {
setForeground( UIManager.getColor("Table.focusCellForeground") );
setBackground( UIManager.getColor("Table.focusCellBackground") );
} else {
setBorder(new EmptyBorder(1, 2, 1, 2));
setText((value == null) ? "" : value.toString());
return this;
/******tableSize()*****code for sizing table******start here()********/
public void tableSize(){
tblOt.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {},
new String [] {"Ot No.", "Start Time","End Time", "Patient Name", "Surgery Name","Surgeon Name"}
TableColumn column = null;
for (int i = 0; i < 6; i++) {
column = tblOt.getColumnModel().getColumn(i);
if (i == 0) {
column.setPreferredWidth(5);
if (i == 1) {
column.setPreferredWidth(15);
if (i == 2) {
column.setPreferredWidth(15);
if (i == 3) {
column.setPreferredWidth(130);
if (i == 4) {
column.setPreferredWidth(130);
if (i == 5) {
column.setPreferredWidth(130);
/******tableSize()*****code for sizing table******end here()********/
private javax.swing.JButton btnClose;
private javax.swing.JScrollPane scrOt;
private javax.swing.JTable tblOt;
private DefaultTableModel model1;
} -
How to remove cells interection line in JTable
Hello
I am new to Java Programming
I am facing a problem which i did not know how to solve so i need help from experts of this forum
I have JTable of lets say 5 columns and from that i want to hide some columsn e.g i want to get only column 0(or ist column) and column 5(5th column) visible to me and not the inbetween columns(i.e 2,3,4) so i coded it like this:
for(int count=0;count< ConnectedDrivestable.getColumnCount();count++)
tcm = ConnectedDrivestable.getColumnModel();
cm=tcm.getColumn(count);
if( count==0 || count==4)
cm.setPreferredWidth(15);
cm.setMinWidth(0);
cm.setMaxWidth(15);
else {
//ConnectedDrivestable.removeColumn(cm);
//ConnectedDrivestable.removeColumn(tcm.getColumn(count));
cm.setPreferredWidth(0);
cm.setMinWidth(0);
cm.setMaxWidth(0);
}where ConnectedDrivestable is my JTable of lets say 5 rows and 5 columns
tcm is TableColumnModel and cm is TableColumn object
But the problem is that i am getting vertical line in between and that is the intersection line of column 1 and column 5(i.e the intersection line of two columns that are visible) i dont want this in between vertical line to appear
I really dont know how to fix this problem i have searched on internet but unable to find the appropriate solution to it
Also as shown in my code i tried to work with removeColumn method which documentation says should remove the desired columns but i dont know why it is not functioing for my case the way i acpected am i doing something wrong or?
So urgent help from people here is required
Thanks in advance
ImranHello
Thanks for reply and thanks for help
Do please tell me that i am rendering cells of JTable with JLabel it is working fine but i want to span JLabel onto multicells in the same row
Second i want to change the size of JLabel so that if not needed JLabel did not cover the whole Cell
A bit of code which i am using to do cel rendering is attched for your kind considerations
ConnectedDrivestable.getColumnModel().getColumn(1).setCellRenderer((new DefaultTableCellRenderer ()
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected,
boolean hasFocus,
int row, int column)
JLabel Jlbl=new JLabel();
if(row==2)
((JComponent)Jlbl).setOpaque(true); //if comp is a JLabel:Necessary
//Jlbl.setBorder(BorderFactory.createLineBorder(Color.BLACK));
Jlbl.setBackground(Color.GREEN);
Jlbl.setLocation(row,column);
System.out.print("The Column number is : "+column);
System.out.print("The answer is: "+ column+2);
((JComponent)Jlbl).setMinimumSize(new Dimension(1,1));
((JComponent)Jlbl).setMaximumSize(new Dimension(0,0));
return Jlbl;
//return comp;
}));Another piece of code which i got from internet for doing the same is
ConnectedDrivestable.getColumnModel().getColumn(2).setCellRenderer((new DefaultTableCellRenderer ()
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected,
boolean hasFocus,
int row, int column)
Component comp = super.getTableCellRendererComponent
(table, value, isSelected, hasFocus, row, column);
//((JComponent)comp).setBorder(new LineBorder(Color.BLACK));
if(row==2 && column==2)
//((JComponent)comp).setBorder(new LineBorder(Color.BLACK));
comp.setBackground(Color.GREEN);
((JComponent)comp).setMinimumSize(new Dimension(1,1));
((JComponent)comp).setMaximumSize(new Dimension(1,1));
else
comp.setBackground(Color.white);
return comp;
}));These both work but as i tried to change the size of JLabel in the Cells it did not work also if i wanted to span JLabels to multiple cells(Column) is it not working
Also as in code snippet i am trying to set the border which works fine but what i want is that after spanning JLabel to multiple cells then i want border along this how to do this help in this regard too?might if i could span JLabel to diffrent columns might i able to set border aroung them too
I am putting under old forum topic this question as it is realted to my same problem so do please apologize me.
I do need urgent help in this regard so kind help is needed
Regards -
How do I create a JTable with some empty cells in it?
I have a three column JTable. The first column is a String showing description. The second column contains numbers (double) and the third column also contains numbers. In some cases not all cells in a row should contain data. So for instance, I could have row one showing only description (a String in the first column), and then row two showing description (a String in the first column) and a number (a double in the second column) in columns one and two respectively. My problem is that, the data gets copied from the cells with data to the cells which are supposed to be empty. So, how do I create a JTable with some empty cells in it.
I have tried empty strings for those values, but it did not work. My table puts objects in an arraylist called reconciliation. The arraylist takes different objects with the same super class. The code below explains. Are you suggesting I pass null to my constructor?
JTable table = new JTable(new ReconTableModel());The method below is from the table model
protected List<Reconciliation> reconciliation = new ArrayList<Reconciliation>();
protected void fillModel(){
reconciliation.add(new CashBook("Cash Book Report"," "," "));
reconciliation.add(new CheckingBankAccount("Checking Bank Account"," "," "));
reconciliation.add(new BankBalance("Bank Balance As Per Bank Statement",500," "));
reconciliation.add(new PaymentVouchers("Payment Voucher Receipt",300," "));
reconciliation.add(new DepositVoucher("Deposit Voucher Receipt",1000," "));
reconciliation.add(new ReconciledBalance("Reconcilied Bank Balance",1200," "));
reconciliation.add(new BalanceAt("Bank Balance At",800," "));
reconciliation.add(new Difference("Difference",400," "));
Collections.sort( reconciliation, new Comparator<Reconciliation>(){
public int compare( Reconciliation a, Reconciliation b) {
return a.getTransactionName().compareTo( b.getTransactionName());
} -
How to change the Background color of a cell in JTable
hi!
Actually i want to change the background color of few cells in JTable
is there any method to make this change in JTable ?
and also is it possible to have 5 rows with single column and 5 rows with 3 columns in a single JTablei want to change the background color of few cells in JTableDepending on your requirements for the coloring of cells it may be easier to override the prepareRenderer() method of JTable:
http://forum.java.sun.com/thread.jspa?forumID=57&threadID=610474 -
Change the background color of a cell in JTable
Hi all,
How can I change the background color of individual cell in JTable. I need to construct my own TableCellRenderer or not? I'm now using the DefaultTableCellRenderer now.
ThxYou could create your own renderer or you could try something like:
table = new JTable(model)
public TableCellRenderer getCellRenderer(int row, int column)
DefaultTableCellRenderer tcr =
(DefaultTableCellRenderer)super.getCellRenderer(row, column);
if (row == 1 && column == 1)
tcr.setBackground(Color.green);
else
tcr.setBackground(Color.red);
return tcr;
}; -
Setting Focus to a particular cell in JTable
Hi, can i know how to set the focus to a particular cell in JTable.
Say I have a table with 2 rows and 10 columns. The focus now is at position (1, 9) which is the last cell in the table. But I want to set the focus to (1, 3). How can i achieve this ? Pls help. ThanksOK. It's partially working. The right methods to use are setRowSelectionInterval and setColumnSelectionInterval. Jeanette was right. Mine didn't work because of a thread issue. I put the those two methods in a block such as:
SwingUtilities.invokeLater(new Runnable(){
public void run()
table.setRowSelectionInterval(tblLineItem.getRowCount()-1,
table.getRowCount()-1);
table.setColumnSelectionInterval(0,0);
Then it worked.
But after I finished editing the first cell of the newly created row and press ENTER, the selection went back to the cell that's next to the originally editing cell on the first(old) row, instead of staying at the current row and going to the second cell.
Can anybody shed a light on what I'm missing? -
What component is placed default in each cell of JTable?
Hi,
What component is placed default in each cell of JTable?It depends on the content, see How to Use Tables - Concepts: Editors and Renderers for details.
-
Setting the backgroundcolor of cell of JTable
Hi
My Problem is.
I have a JTable with 2 columns ( Rows can be 1-10 depending upon the size of
input vector)
I have provided two button in my Frame
1)Update Row
2) Update whole Table.
Now i want I want that if a user makes a change in any cell say cell( row
3,Col 1) ;and moves to next row , then the color (background/foreground) of
that cell should change to any other color .Again if he presses any of the
button then the default color of the cell should be restored.Basically i
want to indicate the user that he has made changes in the cell and he needs
to press the button for updation
Regards
AminurYou need to write your own TableCellRenderer if you want to control how individual table cells appear. Look in the How to Use Table tutorial if you haven't already done that; you'll find a link to it in the API documentation for the JTable class. And in that renderer, if you use a JLabel to render the cell, remember that a JLabel defaults to being transparent, i.e. you can't see its background. Use "setOpaque(true)" if you want to control the background colour.
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How to Validate the Cube in Essbase
Hi All,
in Essbase How to Validate the ASO Cube. How can we validate the data is loaded correctly or not after data loading.
please let me know how to do this job?
RegardsIf you load data you can see the data load successful and the no of cells updated in the dialogue box.
If there any records rejected they are thrown into dataload .err file.
If you want to validate the input data you can verify the input records in the excel add-in.
If you want validate the business logic ( ie data at the high level ) you have to write SQL Procedures or Custom programs at the Source layer to calculate the high level data in ESSBASE and compare the results in essbase Roll UP Using Excel add-in.
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