Info on cell editors for specific rows

Hi all,
Could anyone tell me how to return different components to be the editors for different rows in a table.
I have certain rows that will use a checkbox editor and certain rows that will use a formatted textfield editor. I have coded an outline to my custom editor which extends Component and implements TableCellEditor. Any help would be greatly appreciated.
Regards
Alan

Override getCellEditor() for the JTable
    public TableCellEditor getCellEditor(int row, int column) {
        if(row==rowOfmyChoice) //Or whatever Logic You want
                  return new MyCellEditor()
        return super.getCellEditor(row,column);
    }

Similar Messages

List UIBB - Access to cell editor for a certain table line possible

Hi,
I am looking for a way to access the cell editor of the last table line as I want to mark it as a special - summary - line.
I intend a similar approach like in WebDynrpo ABAP when accessing the node info and modifying the "CELL DESIGN" attribute like in the following code (copied from WD Comp WDR_TEST_TABLE, View CELL DESIGN, method FILL_CELL_DESIGNS) :
data tab type IF_CELL_DESIGN=>Elements_Cell_Designs.
data line type IF_CELL_DESIGN=>Element_Cell_Designs.
data node_info type ref to if_wd_context_node_info.
data attribute_info type wdr_context_attribute_info.
data attr_value type WDR_CONTEXT_ATTR_VALUE.
node_info = node->get_node_info( ).
attribute_info = node_info->get_attribute( 'CELL_DESIGN' ).
line-is_expanded = abap_true.
line-is_leaf     = abap_false.
line-key         = 'FIRST'.
loop at attribute_info-value_set into attr_value.
    line-text = sy-tabix.
    concatenate 'Text #' line-text into line-text. "#EC NOTEXT
    line-cell_design = attr_value-value.
    insert line into table tab.
    line-is_leaf = abap_true.
    line-key = attr_value-value.
    line-parent_key = 'FIRST'.
endloop.
node->bind_table( tab ).
I suspect the method IF_FPM_GUIBB_LISTGET_DATA (or IF_FPM_GUIBB_LISTGET_DEFINITION) of my feeder class to be the right access point.
But unfortunately, I have not yet found out how to change the cell design for specific lines, only for whole columns.
Can anyone give me a hint here?
BTW: The "summary" line is not a sum of the lines above, but determined by backend logic, so not ALV-summary line for me.
Kind Regards

Hi,
A short update for all interested:
My current work around is to always set the lead selection to the summary line. It does in a kind "mark" that line as special as long as I cannot mark it using a different cell design.
How do I assure this?
I have implemented the following code in a redefinition of the method ADJUST_SELECTION:
*- alter selection
DATA:
   ls_size TYPE rstabix.
"get index of summary line
ls_size-tabix = mo_collection->size( ).
"change only if there are any cash conc. proposals
IF ls_size-tabix > 0.
    "do FPM selection
    CLEAR: ev_lead_index, et_selection.
    ev_lead_index = ls_size-tabix.
    APPEND ls_size TO et_selection.
    "do BOL selection
    mo_collection->if_bol_bo_col_multi_sel~unmark_all( ).
    mo_collection->if_bol_bo_col_multi_sel~mark( iv_index = ls_size-tabix ).
ENDIF.
The general downside is, that no other selection is possible!
The selection is always reset to the summary line with each roundtrip.
Waiting for a better solution...
Kind Regards,
Robert

Item renderer for specific rows

I need to have a checkbox item renderer for a spark datagrid column. I am using the following to get an item renderer into column:
var checkBoxRenderer:ClassFactory = new ClassFactory(GridCheckBoxItemRenderer);
column.itemRenderer = checkBoxRenderer;
My question is if I need to show a checkbox for specific rows can I do that without going into GridCheckBoxItemRenderer's source code?
Thanks

Hi Zolotoj ,
Please go through following links :
http://stackoverflow.com/questions/1952940/show-itemrenderer-in-specific-datagrid-rows-oth ers-empty
http://www.flexer.info/2009/01/09/different-rows-in-datagrid-programmatically-added-itemre nderers-classfactory-and-ifactory/
It will provide you some idea to how to proceed further for this problem.
Thanks and Regards,
Vibhuti Gosavi | [email protected] | www.infocepts.com

Setting cell editor for individual cell in JTable

Hi there,
I want to provide individual cell editor for my JTable. Basically, my JTable shows property names and values. I want to show different cell editors for different properties.
I followed the advice in this post:
http://forum.java.sun.com/thread.jsp?forum=57&thread=423318
but I have a question:
I looked at the code of DefaultCellEditor. It just has a single editor component (the one provided in the constructor), so all the methods use the same component and certain aspects are customized for the type of component. Again, there can be only one type of component at a time.The problem that I am facing is that I will have different components for different row/column of the same table. So how do I implement some of the methods (for example, getCellEditorValue()), when I have multiple editor components?
Also, how do I commit changes made by the user?
I am extremely confused.
Someone please help!
Thanks.

Actually, that's what I am currently doing.
Here is my cell editor class:
public class ObjectPropertyEditor extends DefaultCellEditor
       public ObjectPropertyEditor()
          super(new JTextField());
          Vector list = new Vector();
          list.add("Yes");
          list.add("No");
         myCombo = new JComboBox(list);
      public Component getTableCellEditorComponent(JTable table, Object value,
          boolean isSelected, int row, int column)
         String colName = (String)table.getValueAt(row,0);
         if(colName.equalsIgnoreCase("Leaf-Node?")) //if it is the "Leaf" property, return the combo box as the editor
             return myCombo;
        else //for all other properties, use JTextField of the super class
            return super.getTableCellEditorComponent(table,value,isSelected,row,column);
    private JComboBox myCombo;
}The problem I have is that when I select a new item from the combo box, the new selection is not reflected in the tableModel. I don't know how I can achive that. I think I need the functionalities that DefaultCellEditor gives to its delegate when its constructor arguments is a combo box. But how can I get two different sets of functionalities (JTextField and JComboBox) ?
Please help!
Thanks.

JTree: How to set different cell editor for different tree Nodes.

I have a JTree and I want to set different cell editors for different node depending on some condition. E.g. I want to set ComboBox as editor for leaf node but each leaf node will have its own set of data.
Any help or pointer?
Thanks in advance
Sachin

take there:
http://www.mutualinstrument.com/Easy/FAQ/Tree/tree.html

Cell Editor for a JTable within A JTable Cell

My individual cells each contain a seperate JTable and I need to write a cell editor for it. I'm not really sure how to write one so if someone show me where I can find some useful examples of such a cell editor I would greatly appreciate it. Thank you for your time. :-)

So, you have a big table whose cells each contain a little table. I assume you already have the little tables working correctly with cell editors and so on, and you want to write a cell editor for the big table. Correct?
My problem with this is that I can't imagine how this would actually work in practice. Suppose I click on a cell in the big table; then the cell renderer displays the appropriate little table. At this point should I see one of the cells in that little table selected, and should I be able to use the Tab key to move around the little table? And if so, then I can't use the Tab key to move around the big table. Next, suppose I press F2 indicating that I want to edit the little table. What should change? Should I now be able to tab around the little table, whereas I couldn't before? And if so, how do I indicate that I have stopped editing the little table? Pressing Enter indicates to the little table's cell editor that its editing is finished, but how should I tell the big table's cell editor that its editing is finished?
Perhaps if you can answer this, you may have a better idea of how to solve your problem. Sorry I only have questions and not answers.

Creating a Cell Editor for a JTree

Hi...
I would like to be able to edit the nodes of a JTree dynamically, but I'm not sure how to do it. I have unsuccessfully tried to implement a celleditor by extended the DefaultTreeCellEditor. The editing works fine, but once the cell has been edited, I get a ClassCastException.
I know that I need to get the edited value and then make appropriate changes to the DefaultMutableTreeNode object stored, but I am not sure where to do all this. I would really appreciate some tips on where to get the edited value entered, and how I can access the object being edited. Thanks.
..VJ..

So, you have a big table whose cells each contain a little table. I assume you already have the little tables working correctly with cell editors and so on, and you want to write a cell editor for the big table. Correct?
My problem with this is that I can't imagine how this would actually work in practice. Suppose I click on a cell in the big table; then the cell renderer displays the appropriate little table. At this point should I see one of the cells in that little table selected, and should I be able to use the Tab key to move around the little table? And if so, then I can't use the Tab key to move around the big table. Next, suppose I press F2 indicating that I want to edit the little table. What should change? Should I now be able to tab around the little table, whereas I couldn't before? And if so, how do I indicate that I have stopped editing the little table? Pressing Enter indicates to the little table's cell editor that its editing is finished, but how should I tell the big table's cell editor that its editing is finished?
Perhaps if you can answer this, you may have a better idea of how to solve your problem. Sorry I only have questions and not answers.

JTable Cell Editor For Decimal Input

Hi friends in my program i am using jtable, in that table two columns are decimal value. I am using defaultcelleditor for to check the user input but it does not work. so how can i check the user input, ie number or string using the cell editor. My aim is to check the user input, if the user give the wrong value, ie string input the warning message want to be displayed and the editor color also want to change. Please help me.
I refer some tutorials and get some source code and i used but it does not work. this is the code.
DecimalFormat format=new DecimalFormat("######0.00");
tableField=new JFormattedTextField();
tab_Bill.getColumnModel().getColumn(3).setCellRenderer(new DecimalRenderer(format)); tab_Bill.getColumnModel().getColumn(3).setCellEditor(new ProblemEditor(tableField));
class DecimalRenderer extends DefaultTableCellRenderer {
DecimalFormat formatter;
DecimalRenderer(String pattern) {
    this(new DecimalFormat(pattern));
DecimalRenderer(DecimalFormat formatter) {
    this.formatter = formatter;
    setHorizontalAlignment(JLabel.RIGHT);
    @Override
public void setValue(Object value) {
   /* setText((value == null) ? "" : formatter.format(((Double) value)
        .doubleValue()));*/
setText((value == null) ? "" : formatter.format(Double.parseDouble(value.toString())));
     class ProblemEditor extends DefaultCellEditor implements TableCellEditor{
   private JFormattedTextField ftf;
   public ProblemEditor(JFormattedTextField myfield) {
       super(myfield);
        @Override
   public Component getTableCellEditorComponent(JTable table,
           Object value, boolean isSelected, int row, int column) {
       ftf = (JFormattedTextField) super.getTableCellEditorComponent(table, value, isSelected, row, column);
        Double d = null;
       try
                if(value!=null)
        d=Double.parseDouble(value.toString());
        catch(Exception e)
           // JOptionPane.showMessageDialog(null,"Wrong");
           d=0.0;
       ftf.setValue(d); // remove and okay
       ftf.setCaretPosition(ftf.getText().length());
       return ftf;
}

You might find it easer to use on of the [Table Format Renderers|http://www.camick.com/java/blog.html?name=table-format-renderers].

Setting Table Cell Renderer for a row or cell

I need to make a JTable that has the following formats:
Row 1 = number with no decimals and columns
Row 2 = number with no decimals and columns
Row 3 = percent with 4 decimals
I can use a table cell renderer to set each COLUMN as one or the other formats like this:
NumDispRenderer ndr = new NumDispRenderer();
for(int i = 1;i<dates.size();i++) {
table.getColumnModel().getColumn(i).setCellRenderer(ndr);
Where NumDispRenderer is a class as follows:
public class NumDispRenderer extends DefaultTableCellRenderer {
public Component getTableCellRendererComponent (JTable table, Object value,boolean isSelected, boolean isFocused, int row, int column) {
Component component = super.getTableCellRendererComponent (table,value,isSelected,isFocused,row,column);
if (value != null && value instanceof Double) {
DecimalFormat df = new DecimalFormat("###,###");
String output = df.format(value);
((JLabel)component).setText(output);
((JLabel)component).setHorizontalAlignment(JLabel.RIGHT);
} else {
((JLabel)component).setText(value == null ? "" : value.toString());
return component;
This is fine for the first two rows, but the third row (which is also an instance of Double) I would like to format differently.
The tutorial and other postings have not given a solution to this problem. Any suggestions would be very appreciated.

Hi,
the method getTableCellRendererComponent() of your renderer gets the row as a parameter. So just create the label depending on that value. For 0<=row<=1 you create the label as is, and for row=2 you create another label with the Double formatted as you wish.
Andre

IsCellEditable() to disable cell editing for specific columns

Hello experts:
My SSCCE for this question is at the below link:
http://forum.java.sun.com/thread.jspa?threadID=5293914&messageID=10244030#10244030
My question is how do I disable cell editing for all but the "Price" column of my table in the SSCCE. I tried adding the below lines of code right after creating the JTable. But get compilation errors.
//Here is the block of code that I am trying to include.
     @Override
     public boolean isCellEditable(int row, int col) {
     if (col == 7) {
               return true;
          } else {
               return false;
     } //Below is the method in detail03.java showing the block of code added
private JScrollPane BuildEmptyTable() {
     model = new DefaultTableModel();
     model.addTableModelListener( this );
     model.setColumnIdentifiers(new String[] { "SKU","Qty", "Price"});
        tblDetailTest = new JTable(model);
     @Override
     public boolean isCellEditable(int row, int col) {     //     <----- I tried placing the
     if (col == 7) {                                        //                  the code block here
               return true;
          } else {
               return false;
     tblDetailTest.setRowHeight(20);
     tblDetailTest.setPreferredScrollableViewportSize(new Dimension(900, 100));
     JTableHeader tblHdr = tblDetailTest.getTableHeader();
     tblHdr.setBackground(Color.yellow);
     JScrollPane scrollPane = new JScrollPane(tblDetailTest);
     return scrollPane;
}Can somebody please guide me? Thank you very much.

oops!
Sorry, my bad! I did not tell you what I tried. Following your suggestion, I made the following 2 changes to the code:
In the method, BuildEmptyTable(), where I build the table structure, I have the following statement:
     tblDetail = new JTable(model){
public boolean isCellEditable(int row, int col) {
       return col == 8;
};And in a separate method after the table is populated with data, I have the below code:
     tblDetail.getModel().addTableModelListener(new TableModelListener() {
     public void tableChanged(TableModelEvent e) {
     if (e.getType() == TableModelEvent.UPDATE)
          int row = e.getFirstRow();
          int column = e.getColumn();
             if (column == 8){
               //code here
               System.out.println("Updating item price!");
     }I do understand that the message gets displayed as many number of times equal to number of rows inserted into the table, because of the UPDATE event. But my problem is I do not know how to make a code change to do what I exactly want, as I have indicated in my previous note. Meaning I want the listener to be called only when the
data in the editable cell changes.
Thank You.

How to get info who is locking a specific row in the RDBMS 9i?

Hi,
could some one please helop me with this? I would like to know the Oracle user name of the user who is locking a specific row in my table. I can display all locking requests with the following SQL statements. What I could not igure out how to find the rownum that is being locked by others?
SELECT *
FROM v$lock lk, v$session s , DBA_OBJECTS ao, wf_users wu
WHERE lk.lmode > 1
AND s.username IS NOT NULL
AND lk.SID = s.SID
AND ao.OBJECT_ID(+) = lk.id1
AND s.username = wu.NAME(+)
AND ao.owner = USER
AND ao.object_name = 'BWF_IKTATASI_ADATLAPOK';
Thank you in advance,
Tamas Szecsy

I'm not sure what's happening with your app. I wrote on up to see if it could handle the CTRL-C. Seems to work fine. Do you have any other JMenuItems with the same accelerator?
import java.awt.event.*;
import javax.swing.*;
public class Copy extends JFrame {
     public Copy() {
          this.initMenuBar();
          this.setSize(400, 300);
          this.setVisible(true);
          this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     private void initMenuBar() {
          JMenuBar menubar = new JMenuBar();
          JMenu edit = new JMenu("Edit");
          JMenuItem copy = new JMenuItem(new CopyAction("Copy"));
          edit.setMnemonic(KeyEvent.VK_E);
          copy.setMnemonic(KeyEvent.VK_C);
          copy.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C, InputEvent.CTRL_MASK));
          edit.add(copy);
          menubar.add(edit);
          this.setJMenuBar(menubar);
     public static void main(String[] args) {
          new Copy();
     private class CopyAction extends AbstractAction {
          public CopyAction(String label) {
               super(label);
          public void actionPerformed(ActionEvent e) {
               System.out.println("Action Performed.");
}

Is it possible to recognize and enter value in to a specific cell of a specific row in WPF Datagrid , in Testing?

Hi,
I am develop one sample application in that application I am using DataGrid. with this DataGrid I am facing one problem i.e; I want to recognize a specific cell(Like: 2nd row 3rd column in this cell i will enter any value) and enter values
into that cell. But i don't know how to recognize particular cell and enter the value . Is it possible ? if possible please guide me.
NOTE: I am facing this problem in Unit Testing?
Regards,
Bhadram.

Hi,
What you are looking for might be done with the usage of a boolean variable and some if conditions. However, you can not use datacopy command inside if conditions. I would be the world's happiest person if there was something like conditional data copying, sorry.
If you choose to use if conditions you might end up using equations for copying data from one scenario to other. This is of course a case which might take ages to calculate.
Instead, I suggest you to have two seperate business rules for each cases.
Cheers,
Alp

Cfinclude query: return result for specific row

I've been trying to crack this all day and I feel like if I
just had a nudge in the right direction I might be successful.
I have a query that returns the records for some textbooks
that are at a specific school. I've normalized the textbook
database so that the primary, secondary and tertiary subject
categories are represented by the primary key of that category in
its own table. As the query loops through the records, I want it to
return the (varchar) subject category that goes with that
(numerical) key in the table.
Since Coldfusion won't allow nested cfoutput, I've tried
using cfinclude to grab the specific name for the subject category
that goes with the current textbook - but what I've got so far
returns all the subjects for the school id in each row - they're
the right subjects! but I don't want all of them, just the right
one with the right book/record. Can anyone suggest what I need to
do? I'm attaching the code for the main page and for one of the
cfincludes (they're identical except for "primary", "secondary" and
"tertiary").
I realize I must be leaving something out but I can't figure
out what. Thanks much in advance.

Marianne,
Glad I could help. To meet your requirement it seems like you
would add one field to my schema in the Subjects table:
parentSubjectId number (FK)
That would simply be a recursive reference to another
subject's ID to which it falls under. Maybe that doesn't make sense
so here's some example data:
subjectId, subjectName, parentSubjectId
1, "Language Arts", null
2, "Reading", 1
3, "Phonics", 2
4, "Other Subject with no parent", null
So you can see we have built ourselves a nice hierarchy,
where subjects which fall under other subjects can reference them.
When you go to allow subjects to be chosen you can then query after
each drop-down selection by refreshing the page (or via AJAX) to
get its subjects. In this case we could also possibly do away with
the "Ranking" field in our linking table since our hierarchy is
captured in the relationships we now have, but for the sake of
making our lives easy, let's keep it.
Like let's say we select "Language arts" with a subjectId of
1, we can get its child subjects like:
<cfquery name="getChildSubjects"
datasource="#Request.dsn#">
SELECT s.subjectId, s.subjectName
FROM subjects s
WHERE s.parentSubjectId = <cfqueryparam
cfsqltype="cf_sql_integer" value="#URL.subjectId#" />
ORDER BY s.subjectName
</cfquery>
Obviously, modifications would need to be made to fit your
schema, variable names, etc. but that's the general principles.
As for how to associate textbooks to subjects you will
actually be inserting one record into the linking table for each
subject selected. So let's say you have a book "XSS for dummies."
To insert the book you would add a single record in your
textbook table, maybe something like:
INSERT INTO textbook (
textbookId,
textbookName,

) VALUES (
1,
'XSS for dummies',

Now, the user has selected three subjects: Computer Science
(ID: 5), Internet and Web Topics (ID: 11), and Security (ID:98). We
will thus insert three records into our linking table like:
INSERT INTO textbookSubjects (
textbookId,
subjectId,
ranking
) VALUES (
1,
5,
'Primary'
INSERT INTO textbookSubjects (
textbookId,
subjectId,
ranking
) VALUES (
1,
11,
'Secondary'
INSERT INTO textbookSubjects (
textbookId,
subjectId,
ranking
) VALUES (
1,
98,
'Tertiary'
So now when we query to get all our textbooks and related
subjects, we have something like this:
SELECT t.textbookId, t.textbookName, s.subjectId,
s.subjectName, ts.ranking
FROM textbook t
LEFT JOIN textbookSubjects ts
ON t.textbookId = ts.textbookId
LEFT JOIN subject s
ON t.subjectId = s.subjectId
ORDER BY t.textbookName
An example dataset might look like:
textbookId, textbookName, subjectId, subjectName, ranking
1, "XSS for Dummies", 5, "Computer Science", "Primary"
1, "XSS for Dummies", 11, "Internet and Web Topics",
"Secondary"
1, "XSS for Dummies", 98, "Security", "Tertiary"
2, "Some Other Book With No Subjects", null, null, null
Now if we iterate over this dataset, you will end up
outputting the textbook 3 times, which is probably not what you
wanted. So to control this we can do something like:
<cfoutput query="myBooks" group="textbookId">
<tr>
<td>#myBooks.textbookName#</td>

<td>

<cfoutput>
#myBooks.subjectName#<br />
</cfoutput>
</td>
</tr>
</cfoutput>
These examples are obviously brief but I hope they get the
point across and help you accomplish what you're trying to
do.

ALV Grid merge cells horizontally for specific record

Hi Experts,
We have a requirement regarding ALV Grid developement.
In ALV Grid, we will have multiple records as normal output.
Output will be as below.
In that, we need Summery Text should be in from Field 2 * to* Field 6 as a single Cell and below that all output
will be normal each cell wise.
That Summery will come for each new Field1.
OUTPUT
Field1 Field2 Field3    Field4 Field5 Field6 Field7   Field8   Field9
001 | . ....      ..        .. Summery ........... | 10   | 20      | 30
001 | 10   |    20 |     30 |   40   |    50 |   60 |    70 |   80     |
001 | 10   |    20 |     30 |   40   |    50 |   60 |    70 |   80     |
001 | 10   |    20 |     30 |   40   |    50 |   60 |    70 |   80     |
001 | 10   |    20 |     30 |   40   |    50 |   60 |    70 |   80     |
Thanks & regards
Manglesh

Hi Manglesh,
sorry ALV is not as flexible as Excel may be.
You can only define a header in that way but it would be above the column headings.
The ALV table display allows only to change the width of the whole column.
Regards,
Clemens

Encountering problems getting the median value for specific rows alone.

Consider the following columns:
Call Value
0.49
0.65
1.22
1.29
1.34
1.64
1.8
2.25
3.86
4.32
5.12
Median 1.64
Quartile 1
0.49
0.65
1.22
1.29
1.34
Expected Median 1.22
BO Returns
The first column in the table contains call values. The median of all the call values is 1.64. BO displays this value as is (correctly). In case of obtaining the median for Quartile 1, BO returns a null value instead of 1.22.
Can anyone please tell me what needs to be done in BO to achieve this value 1.22?

Hi Rajiv,
Following is the syntax of the formula for median values.
The Syntax is as follows:
number Median([measure]), where measure is any measure object.
Example
Median([Revenue]) returns 971000 if [Revenue] has the values 736431, 971000, and 5476652
Please note that the Median function in BusinessObjects works differently from the Median function in Microsoft Excel.
For odd number of rows in the report, the Median will take the middle value and for even number of rows in the report, the Median will take the two middle values and calculate the Average of them.
Regards,
Sarbhjeet Kaur

Info on cell editors for specific rows

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