How to get the index of a Column

Hello,
I want to know the index of a column for example the column at the first position in a jtable is 0 so how can i get this index?
for example: the column called "surname" is index 0 but the user can move the column. So the name stays the same but the index of the column changed. I search for a method like
table.getColumnIndex("surname");

So why do you post questions on multiple forums.
Like I said you are wasting peoples time. We don't know what has been suggested on the other forums. So by answering the question here we are wasting our time because you also probably got the answer on the other forum as well.

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Is there a way to find out how to get the index of a column?

Hello,
I want to know the index of a column for example the column at the first position in a jtable is 0 so how can i get this index?
for example: the column called "surname" is index 0 but the user can move the column. So the name stays the same but the index of the column changed. I search for a method like
table.getColumnIndex("surname");

I think it really depends on what the OP is trying to do. I think the program
below offers up the possible choices pretty well.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
public class TableColumnIndexDemo extends JFrame {
     private JTable table;
     private String[] names = new String[]{ "One", "Two", "Three", "Four", "Five" };
     public static void main( String args[] ) {
          SwingUtilities.invokeLater( new Runnable() {
               public void run() { new TableColumnIndexDemo(); }
     public TableColumnIndexDemo() {
          setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          DefaultTableModel model = new DefaultTableModel( names, 1 );
          table = new JTable( model );
          JButton button = new JButton( "Print indices" );
          button.addActionListener( new ActionListener() {
               public void actionPerformed( ActionEvent e ) {
                    printIndices();
          getContentPane().setLayout( new BorderLayout() );
          getContentPane().add( button, BorderLayout.NORTH );
          getContentPane().add( new JScrollPane( table ), BorderLayout.CENTER );
          getContentPane().add( new JLabel( "Move columns around then print indices" ), BorderLayout.SOUTH );
          setSize( 300, 150 );
          setVisible( true );
          printIndices();
     private void printIndices() {
          TableColumnModel columnModel = table.getColumnModel();
          TableModel model = table.getModel();
          StringBuffer sb = new StringBuffer();
          System.out.println( "Visible order");
          for ( int k = 0; k < columnModel.getColumnCount(); k++ ) {
               if ( k > 0 ) sb.append( ", " );
               sb.append( k ).append( " " ).append( columnModel.getColumn( k ).getIdentifier() );
          System.out.println( sb );
          sb = new StringBuffer();
          System.out.println( "By name using getColumnIndex(TableModel,name)" );
          for( int k = 0; k < names.length; k++) {
               if ( k > 0 ) sb.append( ", " );
               sb.append( getColumnIndex( model, names[k] ) ).append( " " ).append( names[k] );
          System.out.println( sb );
          sb = new StringBuffer();
          System.out.println( "By name using columnModel.getColumnIndex(name)" );
          for( int k = 0; k < names.length; k++) {
               if ( k > 0 ) sb.append( ", " );
               sb.append( columnModel.getColumnIndex( names[k] ) ).append( " " ).append( names[k] );
          System.out.println( sb );
          sb = new StringBuffer();
          System.out.println( "Model index by visible order");
          for ( int k = 0; k < columnModel.getColumnCount(); k++ ) {
               if ( k > 0 ) sb.append( ", " );
               TableColumn column = columnModel.getColumn( k );
               sb.append( column.getModelIndex() ).append( " " ).append( column.getIdentifier() );
          System.out.println( sb );
     public static int getColumnIndex(TableModel model, String name) {
         for(int i = 0; i < model.getColumnCount(); i++) {
             if( model.getColumnName(i).equalsIgnoreCase(name) ) {
                 return i;
         return -1;
}

How to get the index of Mult column list box

Hello all,
I need small help. Please help me.
Is there is any property to change the "Multi column list box" row index position dynamically?
I want to change the index position at runtime like below.
Munna
Solved!
Go to Solution.

It's called Top Left Visible Cell. There aren't that many properties there.
Try to take over the world!

How to get the index of a h:column element?

Hi!
I'd like to know how to get the index of a <h:column> element.
Here is the code of what I'm trying to do:
<h:column>
     <a:commandLink
          value="#{familyAction.familyDocsByPrj}"
          action="#{homeAction.search(ROW_INDEX)}"
          reRender="rightAppPanel" />
</h:column>When clicking a row, I'd like to make a "search" depending on the selected row.
Does anybode know how to do that?
Thanks a lot :)

Thanks a lot for all your answers! :)
I finally got to do something with my little knowledge =P
I created a new class containing all the data needed for the dataTable (including a "String id").
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How to get the index of selected values in SelectManyChoice...

How to get the index of selected values in SelectManyChoice... the value which i get is coming when i submit the value second time

By using the given code i get the value of the selected indices, but problem here is i get the value when it get submits at the second time... First time the length of that int array is 0.
Second time it shows the value two times (i.e) First time submitted value and the second time submitted value. After that it works fine.. I have problem while clicking first time only..
The Following error also raises.. One multiselect is dependent on other multiselect.
DF_FACES-60098:Faces lifecycle receives unhandled exceptions in phase PROCESS_VALIDATIONS 3
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     at oracle.adfinternal.view.faces.model.binding.FacesCtrlListBinding.getInputValue(FacesCtrlListBinding.java:199)
     at oracle.jbo.uicli.binding.JUCtrlValueBinding.internalGet(JUCtrlValueBinding.java:2416)
     at oracle.jbo.uicli.binding.JUCtrlListBinding.internalGet(JUCtrlListBinding.java:3717)
     at oracle.adfinternal.view.faces.model.binding.FacesCtrlListBinding.internalGet(FacesCtrlListBinding.java:500)
     at oracle.adf.model.binding.DCControlBinding.get(DCControlBinding.java:749)
     at javax.el.MapELResolver.getValue(MapELResolver.java:164)
     at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
     at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
     at com.sun.el.parser.AstValue.getValue(Unknown Source)
     at com.sun.el.ValueExpressionImpl.getValue(Unknown Source)

How to get the index of the word at current cursor position in the word?

Dear All
I am implementing a spell checker of my native language in Word. Whenever I run spell checker it start from the first word. How can I make it to start from the current cursor position? How can I get the index of the word at the current cursor position?
Thanks in advance.
Dharam Veer Sharma

hi Dharam Veer Sharma,
Thanks for sharing the solultion with us.
It is helpful for others who have the same issue. And if you have any Office developing issue, please feel free to open a new thread.
Have a nice day.
Regards & Fei
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How to get the index of subform in dynamic Forms??

We are creating a Dynamic Form in which there is a field "PAN number" in a block. With the Script, we are replicating the blocks. Suppose there are 10 blocks (hence 10 PAN number fields will be there) and if the user wants to enter the PAN number in any of the blocks, how can we get the index of the block on which a value has been entered?

Are you sure you are using JTree? (I couldn't find a method named getIndex at all!)
As I couldn't quite understand what you are getting at, one thing that would be helpful is if you refer to "How to use Trees" in The Java Tutorial:
http://java.sun.com/docs/books/tutorial/uiswing/components/tree.html

How to get the index of the minimize point

Need to get the index of the minimize point, marked as red cycle in the attached word file.
It is a collected data from different sample devices, so the curve may change a bit each time. But the overall profile is the same, just 2 main peaks.
I tried to detect the Y difference to see when the difference values change from negative to positive.
But, there are noise as tiny peak when zoom in, shown in word file. Then tried to use median filter to make it smooth. (Maybe better method should be used.)
But there are still some bigger regional peak. Any suggestion?
Is there any labview function or better algorithm can make it. Many thanks for your help.
Solved!
Go to Solution.
Attachments:
Curve shots(zoom in).doc ‏294 KB
Sample Data 1.vi ‏22 KB
Sample Data 2.vi ‏16 KB

A trick I often use is to sample the data with a much higher speed than needed. Then I apply some simple averaging methods or and median filter. After that I downsample the signal to a adequate rate by averaging x samples. This have been a saver for me more than once. How successful it is depends of noise character type. It just a hint as it may not be applicable in your application
Besides which, my opinion is that Express VIs Carthage must be destroyed deleted
(Sorry no Labview "brag list" so far)

How to get the index of a row in dynamically generated list

Hi,
I am displaying a list which contains 6 rows using <logic:iterator/>
If i am changing a text value which is in 3 row, I want to pass that row index to the javascript function.
I am using IndexId attribute of <logic:iterator> to get the index of a row,but
It is working fine for Hyperlink buttons, but it is no working for text boxes.
can any one plz help me..
Thanks,
madhu

madhu,
Please post your code... It's a bit like asking a mechanic to fix your car blind folded.

How to get the difference between two columns in a column group

Hi All,
My first time here and really new to programming. I would like to get the difference between 2 columns that are inside
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Here is my sample table below: The Column Group is PeriodNumber and can only choose 2. like 1 and 2.. I would like to have a third row which will simply calculate the difference between the amounts in PeriodNumber 1 and 2.
PeriodNumber
Account 1 2
1) Cash 10,000 15,000
2) Receivables 12,000 11,500
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Hi yabgestopa,
From your description, you want to get the difference between two columns in a column group. After testing it in my environment, we can use custom code to achieve your requirement. For more details, you can refer to the following steps:
Copy the custom code below and paste it to your report. (Right-click report>Report Properties>Code)
Dim Shared Num1 As Integer
Dim shared Num2 As Integer
Public Function GetAmount(Amount as Integer, Type as String)
If Type = "1" Then
Num1=Amount
Else
Num2=Amount
End If
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Then use the expressions below in the matrix.
=Code.GetAmount(Fields!Amount.Value,Fields!PeriodNumber.Value)
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If you have any questions, please feel free to ask.
Thanks,
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Katherine Xiong
TechNet Community Support

JSTL how to get the index of a ResultSet

in jsp can use like this
rs.getString(1);//rs is a ResultSet
and how to do this in JSTL?
<sql:query var="rs">
select count(*) from my
</sql:query>
${rs.rows[0].??????}

Look at the API for the classes used by JSTL: http://java.sun.com/products/jsp/jstl/1.1/docs/api/index.html
The jstl:query var object is of type javax.servlet.jsp.jstl.sql. Result
(see http://java.sun.com/products/jsp/jstl/1.1/docs/tlddocs/sql/query.html for details on the sql:query tag)
The rs has the following available to it:
rs.columNames (a String[])
rs.rowCount (and int)
rs.rows (an array of sorted maps)
rs.rowsByIndex (an Object[][])
rs.limitedByMaxRows (boolean)
The ones that might be helpful are:
rs.columnNames. As a String array, with one value per column, you try to get the count of objects in the array, or iterate through them when you are reading each row (maybe not the best idea)
rs.rows returns a SortedMap for each row. As a Map, it has the size() method which would tell you how many items. But it would also let you iterate through the map getting the values.
rs.rowsByIndes, as another means of counting the length of the columns via an array
Unfortunately, all of these means at getting to the value you want do not follow the JavaBeans specs, so you can't use simple JSTL or EL to get at them.
But once again, we could use the JSP function library to get at the data ( http://java.sun.com/products/jsp/jstl/1.1/docs/tlddocs/fn/tld-summary.html )
For instance, we might be able to do this:
<c:set var="colCount" value = "${fn:length(rs.rows[0])}"/> or
<c:set var="colCount" value="${fn:length(rs.columnNames)}" />
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How to get the values in separate columns

Hello Everyone
I am new to Bex, i have the sales data of 2008,2009,2010. now i have to display the sales order(key figure) for 2008,2009,2010 in separate columns for each customer(dimension) in a single report , can any one help me how to get this done in bex.
Thanks
Gupta

Hi ,
You can achieve this either creating New Selections or Restricted Key Figures.
Right click on the structute>>>> New selcection>>> drag the year to right [ Right Click on it >>restrict it with 2008}>>>Drag the respected Key figure.
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COpy the New Selecten that u created and paste on the structure , chage the descriprion and year to 2009.
do the same for 2010.
Note:you can also achieve this by creating variable offsets.Check the following link
http://help.sap.com/saphelp_bw33/helpdata/en/3f/89533e5ff4d064e10000000a114084/content.htm
Regards,
Ranganath

How to get the index value from rich:dataTable in jsf2.0

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I am developing web application using jsf2.0. In this case, I used rich:dataTable tag for display the values from mysql.
so this is working..
my problem is, How to select the perticular row or index from the datatable for another processing...
help me..
Thanks.

Hi,
You need to get the selectedIndex attribute of the drop down element, e.g.
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You can use the Object Browser to get the path to the element you are interested during recording.
Regards,
Jamie

How to get the sum in appropriate column without a red triangle appearing?

Hello,
In 'Numbers" - How do get columns to add (calculate) the sum in each decending column on an Expense Report.
When I highlight the decending column the total appears on the far left of the screen. When I drag the sum amount from there to the appropriate column a red triangle with an ! appears instead of the amount.
Thanks for your immediate help.

The red triangle is an Error triangle. Clicking it will display the error message and tell you what error has occurred. From your description, my assumption is that you dragged the SUM() function from the quick calculations at the lower left and dropped it intto a cell in the column being summed.
If that's the case, this is likely the error message you would see:
When you highlighted the 'decending column,' you likely selected all of the cells in that column, including the one into which you dropped the function.
Instead, do one of the following. These assume the column you want to sum is column B.
If you want the sum at the top of the column:
Make sure the row you want the sum to appear in is a Header row.
Enter this formula into any Header Row cell in column B: =SUM(B)
If you want the sum at the bottom of the column:
Add a Footer row to the table. (Go Table (menu) > Footer Rows > 1).
Enter this formula into the Footer Row cell in column B: =SUM(B)
SUM (and other functions) that expect a range of cells will interpret a cell reference entered using only the column letter (B) as meaning 'all of the non-header, non-footer cells in column B', and will exclude those cells in header or footer rows.
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How to get the index of table row without selection?

Hi all,
I have an table designed in XML view.Now i have added an change method for qty cell "valqty". When user inputs the qty in the cell and press enter this method is triggered now I want to know which index of the table is currently edited.Through which i can get the value of other cell in the same row.
NOTE: The table row doesn't have selection either multiple or single
I tried the following inside the valqty method but it now working
this.getValue();
this.getBindingContext().getProperty('PRD_NUM');
<Table id="idProductsTable"
inset="false"
items="{oModel>/deliverylist}"
visibleRowCount= "7"
mode="MultiSelect"
modeAnimationOn="true">
<headerToolbar>
<Toolbar>
<Label text="Products"></Label>
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<columns>
<Column
minScreenWidth="Tablet"
demandPopin="true">
<Text text="Order" />
</Column>
<Column
minScreenWidth="Tablet"
demandPopin="true">
<Text text="Quantity" />
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<items>
<ColumnListItem>
<cells>
<Text text="{oModel>PRD_NUM}" />
<Input value="{oModel>DEL_QUAN}" change="valqty" maxLength="13" />
</cells>
</ColumnListItem>
</items>
</Table>
Thanks

Thanks Robin,
But in my case oEvent.getSource() is returning the cell instance and
oEvent.getSource().getBindingContext() is undefined
Hence not getting the value
I also tried the following
oEvent.getSource().getParent().getParent().indexOfItem()
But index returned is -1

How to get the index of a Column

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