Delete Command Button to delete particular row from VO

Hi,
I have dragged & dropped an VO into jspx page as table, from data-control pallete dragged Delete operation as a button on to the table as last column.
By pressing delete button, it is deleting top row from VO. I want to delete the particular row w.r.t delete button on the column list....?
regards.

Iam using JDev 11.1.1.5 version,
Irespective of the row selected in VO and pressing delete button will delete only first row(starting row of VO).
Note: Each row of VO having delete button(bcoz, i dragged & dropped delete operation has a button as a last column of table)
regards.

Similar Messages

Deleting a row from a table using jsp

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most of the tables that I have seen are static, the user cannot interact with them(specially when the user wants to delete several records from a database table).
Can anyone suggests a good book or way of deleting a row from table using jsp.

eg use a column in the table that has a radio button or check box,
on submit, get all the rows that are checked, using the row as an index into your db store, get the key and use the key to issue the sql delete command.

Deleting a row from a table containing CLOB as one of the columns

When i delete a row from a table which contains a CLOB (internal clob) i.e. CLOB or BLOB column, Will the CLOB data will also be deleted ? I understand that what exactly stored in the CLOB column is the clob locator which points to the actual data.
So, when I delete this row, the clob locator will be deleted, but will the actual data what this locator is pointing to is also deleted ??? if not what is the process to delete the data the locator is pointing to when the row containing the locator is deleted ? If this is not happening then the actual data might become an orphan data which nobody has access to, will automatic garbage cleaning occurs on a frequent intravels to delete unaddressed data residing on the database server ?
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Michael,
Thanks very much for your inputs, here are the results i got when i tried the way you explained in your answer, the TRUNCATE command made the actual size back to normal, but the delete is not the same, so, how can i delete the data that a particular clob locator may point to ?
truncate would delete all the rows of the table, which might not serve my purpose, i would like to delete a row and also it's associated clob data from the database! is there anyway to do this ?
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==========================
My Results:
==========================
SQL> create table sample (
2 id integer primary key,
3 the_data CLOB default empty_clob() )
4 lob (the_data) store as ool_sample;
Table created.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
20K
SAMPLE
10K
SQL> select count(*) from sample;
COUNT(*)
0
SQL> begin
2 for i in 1..1000
3 loop
4 insert into sample values (i, RPAD('some data', 4000) );
5 end loop;
6 end;
7 /
PL/SQL procedure successfully completed.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
6420K
SAMPLE
70K
SQL> delete sample;
1000 rows deleted.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
6420K
SAMPLE
70K
SQL> commit;
Commit complete.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
6420K
SAMPLE
70K
SQL> begin
2 for i in 1..1000
3 loop
4 insert into sample values (i, rpad('some data', 4000));
5 end loop;
6 end;
7 /
PL/SQL procedure successfully completed.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
9616K
SAMPLE
70K
SQL> truncate table sample;
Table truncated.
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2 from user_segments
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4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
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20K
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How To Delete a Row From a TableView !!!!

Hi,
Does any know how to delete a row from a table view model.
I have a TableViewModel being displayed, when the user select the particular row and click delete i want that particular row to be deleted.
Any Suggestions How.
Thanks,
Emmanuel.

If u want to delete single row, then set the property of TableView - selectionMode="SINGLESELECT". Select the radio button and click on delete button. In the main program, you can get the row value like...
public void onDeleteButtonClicked(Event event) throws PageException {
TableView table = (TableView) this.getComponentByName ("idTableView");
DefaultTableViewModel dmodel = myBean.beanModel;
String pid = "", row_selected;
// Get the first visible row
int firstVisibleRow = table.getVisibleFirstRow();
// Get the last visible row
int lastVisibleRow = table.getVisibleLastRow();
for (int i = firstVisibleRow; i <= lastVisibleRow; i++) {
if (table.isRowSelected(i)) {
row_selected = i;
pid = dmodel.getValueAt(i, 1).toString();
"i" will give you the row no, pid has the value of the row at first column.
Hope this helps.
Thanks,
Praveen

Deleting multiple rows from SUD dialog table

Hi,
I have some SUD dialog tables that I would like to delete some rows from. I can select and delete all or one row (using a SUD button that finds out which one row was selected or if all, and then deleting them with the table.rows.remove command), but I seem to have troubles if I want to select multiple rows (either in a range, ex: rows 3-10, or non-sequential, ex: 1, 4, 6 and 23). I just started working on this but thought maybe someone has already done this and can save me the trouble!
Thanks!
Julia Moeller

Hi Julia,
Just a quick guess-- try looping backwards and deleting the last rows first:
FOR i = 10 TO 3 Step -1
table.rows.remove i
NEXT
Haven't tested it, so no guarantees,
Brad Turpin
DIAdem Product Support Engineer
National Instruments

HOW TO DELETE THE ROW FROM DATABASE

hI,
Iam pasting my code below.My problem isi retrieve rows from database and display them in jsp page in rows.For each row there is delete hyperlink.Now when i click that link i should only delete the row corresponding to that delete link temporarily but it should not delete the row from database now.It should only delete the row from database when i click the save button.How can i do this can any one give some code.
thanks
naveen
[email protected]
<%@ page language="java" import="Utils.*,java.sql.*,SQLCon.ConnectionPool,java.util.Vector,java.util.StringTokenizer" %>
<html>
<head>
<meta http-equiv="Content-Language" content="en-us">
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<meta name="GENERATOR" content="Microsoft FrontPage 4.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<title>Item Details</title>
<script>
function submitPage()
document.details.action = "itemdetails.jsp" ;
document.details.submit();
</script>
</head>
<body>
<form name="details" action="itemdetails.jsp" method="post">
<%
ConnectionPool pool;
Connection con = null;
Statement st;
ResultSet rs =null;
%>
<table border="0" cellpadding="0" cellspacing="0" width="328">
<tr>
<td width="323" colspan="4"><b>Reference No :</b> <input type="text" name="txt_refno" size="14">
<input type="submit" value="search" name="search" ></td>
</tr>
<tr>
<td width="81" bgcolor="#000099"><font color="#FFFFFF"><b>Item Code</b></font></td>
<td width="81" bgcolor="#000099"><font color="#FFFFFF"><b>Item No</b></font></td>
<td width="81" bgcolor="#000099"><font color="#FFFFFF"><b>Amount </b></font></td>
<td width="80" bgcolor="#000099"> </td>
</tr>
<%
pool= new ConnectionPool();
Utils utils = new Utils();
double total =0.00;
String search =utils.returnString(request.getParameter("search"));
if(search.equals("search"))
try
String ref_no =utils.returnString(request.getParameter("txt_refno"));
String strSQL="select * from ref_table where refno='" + ref_no + "' ";
con = pool.getConnection();
st=con.createStatement();
rs = st.executeQuery(strSQL);
while(rs.next())
String itemcode=rs.getString(2);
int item_no=rs.getInt(3);
double amount= rs.getDouble(4);
total= total + amount;
%>
<tr>
<td width="81"><input type=hidden name=hitem value=<%=itemcode%>><%=itemcode%></td>
<td width="81"><input type=hidden name=hitemno value=<%=item_no%>><%=item_no%></td>
<td width="81"><input type=hidden name=hamount value=<%=amount%>><%=amount%></td>
<td width="80"><a href="delete</td>
</tr>
<%
}catch(Exception e){}
finally {
if (con != null) pool.returnConnection(con);
%>
<tr>
<td width="323" colspan="4">
<p align="right"><b>Total:</b><input type="text" name="txt_total" size="10" value="<%=total%>"></td>
</tr>
<tr>
<td width="323" colspan="4">
<input type="button" value="save" name="save"></td>
</tr>
</table>
</form>
</body>
</html>

You mean when you click on the hyperlink you want that row to disappear from the page, but not delete the row from the database until a commit/submit button is pressed?
Personally, I think I'd prefer that you have a delete checkbox next to every row and NOT remove them from the display if I was a user. You give your users a chance to change their mind about their choice, and when they're done they can see exactly which rows will be deleted before they commit.
You know your problem, of course, so you might have a good reason for designing it this way. But I'd prefer not removing them from the display. JMO - MOD

Deleting a row from a table control through right-click menu

I have a table control. I want to delete a row from it when a user right clicks on a particular row and selects "Delete row" menu item. I have managed the creation of menu item but have not been able to delete the row which is right clicked and the menu item "Delete row" is selected. Guidance required! Thanks!

smercurio_fc wrote:
It's irrelevant whether the table is a control or indicator. See attached VI.
Hi smercurio,
please see the attached picture. In my previous post i mean the different in the menu. The red marked function is not available, if the table is an indicator. LV8.5!
Mike
Message Edited by MikeS81 on 04-18-2008 05:19 PM
Attachments:
Unbenannt.PNG ‏22 KB

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Hi All,
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Is there anyother way to do the same?????
Best Regards.
Shafiq Ahmed Khan.

Hi
first u get the index from the context element. with the help of the index u can get that particular element using get element.
then u remove the element .
check this code.
CALL METHOD context_element->get_index
receiving
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CALL METHOD lo_nd_rcf_edu_det->get_element
EXPORTING
    index        = lv_index
receiving
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CALL METHOD lo_nd_rcf_edu_det->remove_element
EXPORTING
    element          = lo_el_rcf_edu_det
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Declare a parameter context_element in the method of type if_wd_context_element
regards
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Hi all
does anyone know how can i cause right click on mouse button. on a certain row within a matrix to show a context menu with the option to delete the row. and when pressing the menu item handling the event of deleting the row from the matrix?
appreciate the help
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Hi Yoav,
Simply, 'context menu' have to be handled with 'menu event' object.
It can be done by 'flushToDataSource' method and some tricks.
Basically, method delete the row without any clause of addon code.
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I mean, you have to update datasource with the data displayed in the matrix.
and then, delete the last row of the datasource.
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You have to delete a row with a method of DBDatasource.. I can't remember the name.
If, the matrix uses userdatasource, you don't need to delete a row in datasource.
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I am trying to delete a row from a JTable whenever the button on the last column is pressed. I know to do this, I can use the removeRow(int) method of the tableModel. But the odd thing is when I try to get a handle to the TableModel from the JTable to use that function, i.e. table.getModel().removeRow(int) it doesn't work. But if I explicitly pass in the tableModel into my class it does work. Here's the code below:
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.table.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.UIManager;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableCellEditor;
import javax.swing.AbstractCellEditor;
import javax.swing.table.DefaultTableModel;
public class tester4 extends JFrame
     protected final int BUTTON_COL = 2;
     private TableCellRenderer defaultRenderer;
     private TableCellEditor defaultEditor;
     private JTable workingTable;
     private String[] transactionCols = {"Qty", "Product", "Cancel"};
     private Object[][] data = {{5, "prod1", "Cancel"},
               {6, "prod2", "Cancel"},
               {7, "prod3", "Cancel"}};
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          workingTable = new JTable(tableModel);
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          defaultEditor = workingTable.getDefaultEditor(Object.class);
          StatusTableRenderer testRenderer = new StatusTableRenderer(defaultRenderer, defaultEditor, workingTable, tableModel);
          workingTable.setDefaultRenderer(Object.class, testRenderer);
          workingTable.setDefaultEditor(Object.class, testRenderer);
        JScrollPane scrollPane = new JScrollPane( workingTable );
        getContentPane().add( scrollPane );
     private DefaultTableModel tableModel = new DefaultTableModel(data, transactionCols){
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          // button in that row
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               return (col == BUTTON_COL && data[row][col] != "") ? true : false;
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          // class type of the first instance of the data type otherwise
          // returns the Object.class
          public Class getColumnClass(int column){
            for (int row = 0; row < getRowCount(); row++){
                Object o = getValueAt(row, column);
                if (o != null){ return o.getClass(); }
            return Object.class;
    public static void main(String[] args)
        tester4 frame = new tester4();
        frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
        frame.pack();
        frame.setVisible(true);
    public class StatusTableRenderer extends AbstractCellEditor
                                            implements TableCellRenderer,
                                                           TableCellEditor,
                                                           ActionListener{
         private TableCellRenderer defaultRenderer;
         private TableCellEditor defaultEditor;
         private JButton cancelButton;
         private JButton editButton;
         private String text;
         private int buttonColumn;
         private int selectedRow;
         private JTable table;
         private DefaultTableModel tableModel;
         public StatusTableRenderer(TableCellRenderer renderer,
                                       TableCellEditor editor,
                                       JTable table,
                                       DefaultTableModel tableModel){
              defaultRenderer = renderer;
              defaultEditor = editor;
              this.table = table;
              this.tableModel = tableModel;
              buttonColumn = table.getColumnCount() - 1;
            cancelButton = new JButton();
            editButton = new JButton();
            editButton.setFocusPainted(true);
            editButton.addActionListener(this);
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                                            TableCellEditor editor,
                                            JTable table,
                                            DefaultTableModel tableModel,
                                            int _buttonColumn){
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                        cancelButton.setForeground(table.getForeground());
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                        table, value, isSelected, hasFocus, row, column);
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                   boolean isSelected, int row, int column){
              if (column == buttonColumn){
                   text = ((value == null) ? "": value.toString());
                   editButton.setText(text);
                   selectedRow = row;
                   return editButton;
              return defaultEditor.getTableCellEditorComponent(
                        table, value, isSelected, row, column);
        public Object getCellEditorValue()
            return text;
        public void actionPerformed(ActionEvent e)
            fireEditingStopped();
            // This works
            tableModel.removeRow(selectedRow);
           // This does not work
          // table.getModel().removeRow(selectedRow);
}Take a look at the actionPerfformed method. One way of doing it works, one doesn't. Just trying to understand why me getting a handle to the tableModel through the table doesn't work.
Message was edited by:
deadseasquirrels

It gives me a run-time error Well then your question should be "why do I get this run-time error" and then you would quote the error. Be more descriptive. "It doesn't work" is not descriptive.
table.getModel().removeRow(selectedRow);I don't use JDK1.5 either. But if you are saying that the above line compiles cleanly with JDK1.5 (because of the auto-boxing feature, or whatever its called), then I see no reason why the code wouldn't work since it recognizes the class as a DefaultTableModel.
Presumably you commented out the other line so you don't try to delete the row twice. Otherwise you might be getting a indexing error.

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Dear Guru's
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ERROR at line 1:
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Choosing How Foreign Keys Enforce Referential Integrity
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SQL> conn scott/tiger
Connected.
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Table created.
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PL/SQL procedure successfully completed.
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Table created.
SQL> begin for inn in 1..10 loop insert into ffk values (inn); end loop; end;
PL/SQL procedure successfully completed.
SQL> drop table ppk cascade constraints;
Table dropped.Message was edited by:
user52
Message was edited by:
user52
Message was edited by:
user52

How To Delete a row from view object

Hi
I have a table whose data is populated based on the view object... and for each row i have a delete icon...
when i press on this delete icon i want to delete that particular row from the view object only..but not from the data
base..please help me in this issue
Thanks

Hi,
as per krishna priya says u can delete .
-----1st one thing let me know vo is eo based .???.
If not here is the sample code to delete a row not from the data base.:
public void Deleterow(OAPageContext pageContext, OAWebBean webBean,String prjid)
int idtodelete;
int fetchedrowcount;
Number prjojectid;
RowSetIterator deleteIter;
prjidtodelete=Integer.parseInt(prjid);
OADBTransaction tr = getOADBTransaction();
ProjectsVORowImpl row=null;
ProjectsVOImpl vo= getProjectsVO1();
fetchedrowcount=vo.getRowCount();
deleteIter = vo.createRowSetIterator("deleteIter");
deleteIter.setRangeStart(0);
deleteIter.setRangeSize(fetchedrowcount);
for(int i=0;i<fetchedrowcount;i++)
row= (ProjectsVORowImpl)deleteIter.getRowAtRangeIndex(i);
prjojectid=(Number)row.getAttribute("ProjectId");
if (prjojectid.compareTo(prjidtodelete)==0)
row.remove();
break;
deleteIter.closeRowSetIterator();
Regards
Meher Irk
Edited by: Meher Irk on Nov 2, 2010 12:42 AM

Delete a Row from a Nested Data Table

Hi... Good day...
I have a dataTable nested within another DataTable.
I want to delete a Row from the nested DataTable on clicking a remove Button at the Last column of the Nested DataTable, Jus in the browser.
How to accomplish this using JavaScript?
Here is my Code Snippet..
<h:dataTable value="#{myListBean.rpts}" binding="#{myListBean.parent}" var="item" headerClass ="header" rowClasses = "whiteRow,grayRow" cellspacing="0" cellpadding="4" border = "0" id = "dataTable">
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     <h:graphicImage id="expand" value="static/images/plus.gif" onclick="showNested(this);" rendered="#{item.schedImgurl=='static/images/scheduled.gif'}"/>
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      <h:dataTable id="orderLines" binding="#{myListBean.child}" value="#{item.scheduleList}" var="schedItem" style="display: none;">
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         <f:facet name="header" >
               <h:outputText value="Scheduled Criteria"/>
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         <h:outputText value="#{schedItem.scheduleCriteriaName}" />
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       <f:facet name="header" >
      <h:outputText value="Frequency"/>
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      <h:column>
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       <h:outputText value="On"/>
       </f:facet>
       <h:outputText value="#{schedItem.scheduleStartDate}" />
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      <h:column>
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</h:dataTable>
</div>
</h:column>
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Ram_J2EE_JSF wrote:
How to accomplish this using JavaScript?Using Javascript? Well, you know, Javascript runs at the client side and intercepts on the HTML DOM tree only. The JSF code is completely irrelevant. Open your JSF page in your favourite webbrowser and view the generated HTML source. Finally just base your Javascript function on it.

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Hi There,
I'm interesting in hearing best practice approaches for deleting multiple rows from multiple tables from a single button click in an APEX application. I'm using 3.0.1.008
On my APEX page I have a Select list displaying all the Payments made and a user can view individual payments by selecting a Payment from the Select List (individual items are displayed below using Text Field (Disabled, saves state) items with a source of Database Column).
A Payment is to be deleted by selecting a custom image (Delete Payments Button) displayed in a Vertical Images List on the same page. The Target is set as the same page and I gave the Request a name of DELETEPAY.
What I tried to implement was creating a Conditional Process On Submit - After Computations and Validations that has a source of a PL/SQL anonymous block as follows:
BEGIN
UPDATE tblDebitNotes d
SET d.Paid = 0
WHERE 1=1
AND d.DebitNoteID = :P7_DEBITNOTEID;
INSERT INTO tblDeletedPayments
( PaymentID,
DebitNoteID,
Amount,
Date_A,
SupplierRef,
Description
VALUES
( :P7_PAYMENTID,
:P7_DEBITNOTEID,
:P7_PAID,
SYSDATE,
:P7_SUPPLIERREF,
:P7_DESCRIPTION
DELETE FROM tblPayments
WHERE 1=1
AND PaymentID = :P7_PAYMENTID;
END;
The Condition Type used was Request = Expression 1 where Expression 1 had a value of DELETEPAY
However this process is not doing anything!! Any insights greatly appreciated.
Many thanks,
Gary.

...the "button" is using a page level Target,...
I'm not sure what that means. If the target is specified in the definition of a list item, then clicking on the image will simply redirect to that URL. You must cause the page to be submitted instead, perhaps by making the URL a reference to the javaScript doSubmit function that is part of the standard library shipped with Application Express. Take a look at a Standard Tab on a sample application and see how it submits the page using doSubmit() and emulate that.
Scott

How to delete multiple rows from ADF table

How to delete multiple rows from ADF table

Hi,
best practices when deleting multiple rows is to do this on the business service, not the view layer for performance reasons. When you selected the rows to delete and press submit, then in a managed bean you access thetable instance (put a reference to a managed bean from the table "binding" property") and call getSeletedRowKeys. In JDeveloper 11g, ADF Faces returns the RowKeySet as a Set of List, where each list conatins the server side row key (e.g. oracle.jbo.Key) if you use ADF BC. Then you create a List (ArrayList) with this keys in it and call a method exposed on the business service (through a method activity in ADF) and pass the list as an argument. On the server side you then access the View Object that holds the data and find the row to delte by the keys in the list
Example 134 here: http://blogs.oracle.com/smuenchadf/examples/#134 provides you with the code
Frank

Delete Command Button to delete particular row from VO

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