Help with validations...

Hello,
I am new to Oracle APEX and hope that someone in this Forum can help me with my problem.
I have one report from, which shows me data. If I click on a button, I can create a new data set. My primary key is generated by two data fields, let's say number1 and number2 are together the primary key.
Now if I create a new data set and select a number for 1 and 2 which is already in the data set, I of course, get an error message. My question is, how I can "warn" the user that the numbers he wants to use are already in the database?
I hope this picture helps understanding my problem:
!http://img682.imageshack.us/img682/1985/imageqj.jpg!

Hi,
Normally the Apply Changes button would be conditional on hidden page items having values - typically, these would be the primary keys on the table. If these values are NULL, then the Create button would be visible instead.
As these two items are going to become the primary keys on the table, then, as soon as the page is submitted (which is what happens when the Create button is clicked on the form), then the values are stored in the session and the condition, which is checked when the page reloads, will see them as non-NULL and therefore displays the Apply Changes button.
You can get around this by having another hidden page item on the form. Call this, say, P4_OK. When you click the Edit button on a row on page 2, make sure that P4_OK is set to 1. When you click the create button, make sure that it is set to 0. Then, update your page 4 Create button's condition to P4_OK being equal to 0 and the Apply Changes button's condition set to P4_OK being equal to 1. If the branches that are triggered by these buttons return you to page 2, then that is all that you need to do (though I always clear the cache for the form page when I branch away from it, so you might want to enter 4 into the Clear Cache setting on both branches). If, however, you stay on page 4, then the branch that is triggered by the Create button needs to set P4_OK to 1 as you will have a valid record on the page by the time the branch is called (validation errors will not trigger the branch so P4_OK will stay at 0 if the two PK values already exist in the table)
Andy

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version 4.1.1.00.23
Hello,
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[code]
function confirmNoTimeSaved()
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<script language="VBScript">

</script>
[/code]
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What additional information can I provide?
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Thank you very much in advance.

Thanks for that. I have tried it on a new page: http://www.greenpatchwebsites.com/pow/newtest.html and here is the validator :
http://validator.w3.org/check?uri=www.greenpatchwebsites.com%2Fpow%2Fnewtest.html&charset= %28detect+automatically%29&doctype=Inline&group=0&No200=1- unfortunately loads of errors
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Use the following markup as a template to create a new XHTML 1.0 document using a proper DOCTYPE. See the list below if you wish to use another document type.
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
     <title>An XHTML 1.0 Strict standard template</title>
     <meta http-equiv="content-type"
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     <meta http-equiv="Content-Style-Type" content="text/css" />
</head>
<body>
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</body>
</html>
but was getting errors with that. As you can tell, I need serious help with this. Which doc type should I be using
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Need help with validation of SSNumber in ESS US Personal Data WebDynpro app

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2. Line 656, Column 71: there is no attribute "onClick"
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Help with validating required fields

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I have sort of Xml To Query function that generates a result set. I'm doing some validation on req. fields before they are inserted into our DB.
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<cfloop list="#MandatoryFields#" index="ThisField">
select Org, '#ThisField# null' problem
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union
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Need help with validation of SSNumber in ESS US Dependent WebDynpro app

Hi,
We're using ESS /SAP Netweaver 2004....
When I make the Soc Sec# visible (changing the Java webdynpro app ess.us.fam the dependents update form in ESS) and trying to make this field not mandatory, I get strange results...
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I guess the Required (state) attribute in the InputField properties is only for showing the red asterisk, but the actual mandatory logic is done somewhere else???..Is this somewhere in the webdynpro app or in the SAP backend...
This app uses the structure HCMT_BSP_PA_US_R0021...
Can anyone point me to where this validation is done so I can change it to what I need,
Thanks,
Venkatesh

Thanks for the replies folks...
I had to go to the ESS Config in the back end (transaction SM30)
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Please find the screenshot below
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Hi Benoit,
I give you my exact requirement,
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Help with validation expression

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This is not what I want though. What I want is to use the following in place of where I have the 10.
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Hi,
If I understood your post correctly this PL/SQL procedure would help:
DECLARE
v_number NUMBER(5);--select precision and scale according to your task
BEGIN
select s1 - s2 into v_number
from
(select sum(units) s1 from units_avail
where trunc(add_date) <= trunc(sysdate) and model = '56478') t1,
(select sum(units) s2 from orders where model = '56478') t2;
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return null;
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end if;
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Val

Help with Validation

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If I understand your requirement correctly, you need to do as below,
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Need Help with Listener on JInternalFrame

Below is the code as it is currently.
public class addCustomer extends JInternalFrame implements ActionListener{
//Variable declarations here
private JPanel panel = new JPanel();
private JLabel label1,label2,label3,label4,label5,label6,label7,label8,label9,icon1;
private JTextField CustNum,CFName,CSName,Address1,Address2,City,PostCode,Tel,Cell;
private JButton Cancel, Add;
private ImageIcon pic,FrmPic;
addCustomer() {
super ("Add New Customer",true,true,true,true);
setSize(350,370);
setResizable(false);
On the Frame I have a textfield that I would like to add a listener to. When text is typed into the textfield it should enable a JButton on the frame. My problem is that as soon as I implement KeyListener or EventListener on the above code I get an error of the class is not defined as abstract. If I define it as abstract my main declaration that looks like this gives me an error :
public static void main(String args[]){
new Video().show();
Can anyone help me with a work around.
Alexander

Still have an error in the code. I don't know what I am doing wrong. this is the code so far.
//This class will create the the Panel for Adding new Customers
package VideoShop;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
import java.io.*;
import javax.swing.event.*;
public class addCustomer extends JInternalFrame implements ActionListener{
//Variable declarations here
private JPanel panel = new JPanel();
private JLabel label1,label2,label3,label4,label5,label6,label7,label8,label9,icon1;
private JTextField CustNum,CFName,CSName,Address1,Address2,City,PostCode,Tel,Cell;
private JButton Cancel, Add;
private ImageIcon pic,FrmPic;
addCustomer() {
super ("Add New Customer",true,true,true,true);
setSize(350,370);
setResizable(false);
//Sets the layout for the panel
panel.setLayout(null);
//Creates the labels
label1 = new JLabel("Customer Nr");
label2 = new JLabel("First Name");
label3 = new JLabel("Surname");
label4 = new JLabel("Address");
label5 = new JLabel("Address");
label6 = new JLabel("City");
label7 = new JLabel("Postcode");
label8 = new JLabel("Tel Nr");
label9 = new JLabel("Cell Nr");
//Creates the Textfields
CustNum = new JTextField();
CustNum.setEditable(false);
CFName = new JTextField();
CSName = new JTextField();
Address1 = new JTextField();
Address2 = new JTextField();
City = new JTextField();
PostCode = new JTextField();
Tel = new JTextField();
Cell = new JTextField();
//Creates the buttons
Cancel = new JButton("Cancel");
Add = new JButton("Add");
//Sets the alignment of the label controls
label1.setBounds(20, 20, 90, 20);
label2.setBounds(20, 50, 90, 20);
label3.setBounds(20, 80, 90, 20);
label4.setBounds(20, 110, 90, 20);
label5.setBounds(20, 140, 90, 20);
label6.setBounds(20, 170, 90, 20);
label7.setBounds(20, 200, 90, 20);
label8.setBounds(20, 230, 90, 20);
label9.setBounds(20,260,90,20);
//Sets the alignment of the Textfield controls
CustNum.setBounds(100,20,90,20);
CFName.setBounds(100, 50, 90, 20);
CSName.setBounds(100, 80, 90, 20);
Address1.setBounds(100, 110, 130, 20);
Address2.setBounds(100, 140, 130, 20);
City.setBounds(100, 170, 100, 20);
PostCode.setBounds(100, 200, 65, 20);
Tel.setBounds(100,230, 90,20);
Cell.setBounds(100, 260, 90, 20);
//Sets the alignment of the Button controls
Add.setBounds(200, 310, 90, 20);
Cancel.setBounds(85,310,90,20);
//Creates an icon on the panel
pic = new ImageIcon("/VideoShop/NotePad.gif");
icon1 = new JLabel(pic);
icon1.setBounds(280,10,50,50);
//Adds Mnemonics
Cancel.setMnemonic('c');
Add.setMnemonic('a');
//Adds listener to the Cell TextField to help with validation
Cell.getDocument().addDocumentListener(new DocumentListener(){
public void changeUpdate(DocumentEvent e){
public void removeUpdate (DocumentEvent e){
adjust(e);
public void insertUpdate(DocumentEvent e){      //ERROR////////////
adjust(e);
//Adds listeners to the buttons on the panel
Cancel.addActionListener(this);
Add.addActionListener(this);
//Adds the controls to the panel
panel.add(label1);
panel.add(label2);
panel.add(label3);
panel.add(label4);
panel.add(label5);
panel.add(label6);
panel.add(label7);
panel.add(label8);
panel.add(label9);
panel.add(CustNum);
panel.add(CFName);
panel.add(CSName);
panel.add(Address1);
panel.add(Address2);
panel.add(City);
panel.add(PostCode);
panel.add(Tel);
panel.add(Cell);
panel.add(Cancel);
panel.add(Add);
panel.add(icon1);
//Gets the next customer number from the database
//Variables for the database
String dbuser = "";
String dbpasswd = "";
String DriverPrefix = "jdbc:odbc:";
String DataSource = "Video";
//Holds the value from the database
String val1;
//SQL String for writing data to database
String SQLstring = "SELECT CustNum FROM Customers";
//Loads the driver for the database
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch (Exception e) {
JOptionPane.showMessageDialog(null,"Error Loading driver\n"+e,"Driver Load Error",JOptionPane.WARNING_MESSAGE);
Statement stmt = null;
Connection con = null;
//Create a connection to the database.
try {
con = DriverManager.getConnection(DriverPrefix+DataSource,dbuser, dbpasswd);
stmt = con.createStatement();
}catch (Exception e) {
JOptionPane.showMessageDialog(null,"Cannot connect to Database\n"+e,"Connection Error",JOptionPane.WARNING_MESSAGE);
ResultSet rs = null;
//Gets data from the database
try {
rs = stmt.executeQuery(SQLstring);
while (rs.next()){
val1 = rs.getString(1);
int val2 = Integer.parseInt(val1);
val2++;
CustNum.setText(String.valueOf(val2));
} catch (Exception e){
JOptionPane.showMessageDialog(null,"Cannot connect to database\n"+e,"Communication Error",JOptionPane.WARNING_MESSAGE);
try {
con.close();
} catch (Exception e){
JOptionPane.showMessageDialog(null,"Cannot close database\n"+e,"Error",JOptionPane.WARNING_MESSAGE);
//Adds the panel to the InternalFrame and display it
getContentPane().add(panel);
show();
//Here all action events are processed
public void actionPerformed(ActionEvent e) {
if (e.getSource() == Cancel){
dispose();
if (e.getSource() == Add){
ToDatabase();
//Here the document event is processed
public void adjust(DocumentEvent e){
Cell.setEnabled(e.getDocument().getLength()>0);
//Here the data will be sent to the database
public void ToDatabase() {
//Variables for the database
String dbuser = "";
String dbpasswd = "";
String DriverPrefix = "jdbc:odbc:";
String DataSource = "Video";
//SQL String for writing data to database
String SQLstring ="INSERT INTO Customers VALUES('"+CustNum.getText()+"', '"+CFName.getText()+"','"+CSName.getText()+"','"+Address1.getText()+"','"+Address2.getText()+"','"+City.getText()+"','"+PostCode.getText()+"','"+Tel.getText()+"','"+Cell.getText()+"')";
//Loads the driver for the database
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch (Exception e) {
JOptionPane.showMessageDialog(null,"Error Loading driver\n"+e,"Driver Load Error",JOptionPane.WARNING_MESSAGE);
Statement stmt = null;
Connection con = null;
//Create a connection to the database.
try {
con = DriverManager.getConnection(DriverPrefix+DataSource,dbuser, dbpasswd);
stmt = con.createStatement();
}catch (Exception e) {
JOptionPane.showMessageDialog(null,"Cannot connect to Database\n"+e,"Connection Error",JOptionPane.WARNING_MESSAGE);
//Transfer data to database
try {
stmt.executeUpdate(SQLstring);
con.close();
} catch (Exception e) {
JOptionPane.showMessageDialog(null,"Cannot update database\n"+e,"Communication Error",JOptionPane.WARNING_MESSAGE);
dispose();
The error that I receive is this:
VideoShop/addCustomer.java [98:1] <anonymous VideoShop.addCustomer$1> is not abstract and does not override abstract method changedUpdate(javax.swing.event.DocumentEvent) in javax.swing.event.DocumentListener
public void insertUpdate(DocumentEvent e){      //ERROR////////////
^
1 error
Errors compiling addCustomer.
Is there a way around this or should I rewrite the whole class.
Thanks
Alexander

Can't log in with valid password, can't boot from disk, can't access disk utility, in single user mode can't reset password as appears locked in caps mode with '?' for forward slash, can anyone help?

Can't log in with valid password, can't boot from disk, can't access disk utility, in single user mode can't reset password as appears locked in caps mode with '?' for forward slash, can anyone help?

Which keyboard layout you were using? German, French ... I suppose your layout is reset to the default: US and you are unable to find the "?" or "/" ...
Please have a look into the keyboard viewer, to see how the layout of your keyboard is actually.
marek

Help with Conditional Display and Validation

Version 4.1.1.00.23
Hello,
I'm having a difficult time with a conditional display and validation I'm hoping someone can help with.
Requirements:
When the Start Date (Datepicker) and/or End Date (Datepicker) change then display the Change Reason (Select List) and Change Description (Textbox)
If the page is saved without entering a Change Reason display a validation error message that the Change Reason cannot be empty (NULL)
What I've tried
Create a Dynamic Action on the Start Date
Event: Change
Selection Type:Item(s)
Items(s): P51_START_DATE
Condition: none
True Action Section:
Action: Show
Fire on Page Load: Checked
Show all page items on the same line: No
Affected Items Section:
Selection Type:Item(s)
Item(s): P51_CHANGE_REASON,P51_CHANGE_DESC
I've also created a Dynamic Action with similar settings for the P51_END_DATE.
I created a Validation for the P51_CHANGE_REASON as Function Returning Error Text:
DECLARE
    v_start_date    work_items.start_date%TYPE;
    v_end_date      work_items.end_date%TYPE;
BEGIN
    SELECT start_date
          ,end_date
    INTO   v_start_date
          ,v_end_date
    FROM   work_items
    WHERE work_items_id = :P51_WORK_ITEMS_ID;
    IF ( (v_start_date != TO_DATE(:P51_START_DATE,'DD-MON-YYYY') OR v_end_date != TO_DATE(:P51_END_DATE,'DD-MON-YYYY') ) AND
          :P51_CHANGE_REASON IS NULL ) THEN
        RETURN 'Change Reason must have a value';
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END;
The Issue
I tried to create another Dynamic Action to hide the P51_CHANGE_REASON and P51_CHANGE_DESC fields on page load, but when either of the date fields are changed and the validation is fired the P51_CHANGE_REASON and P51_CHANGE_DESC are hidden again.
There are two buttons to submit the page: 'SAVE' will submit the page and stay on the page and 'SAVE_CHANGES' will submit the page and branch to the previous page (which is a report with EDIT buttons to edit the record).
I can't get the page load Dynamic Action to NOT fire when the validation is fired.
I hope this is clear and if not what information can I provide?
Thanks,
Joe

Phil,
Thank you for looking at this.
Yes if the Change Reason is NULL when the edit page is displayed then the Change Reason and Change Description fields are hidden. If the Start Date (Datepicker) and/or End Date (Datepicker) change then display the Change Reason (Select List) and Change Description (Textbox). If the page is saved without entering a Change Reason display a validation error message that the Change Reason cannot be empty (NULL).
The problem I'm having is that if no Change Reason is entered and the page is saved thereby firing the validation the Change Reason and Change Description fields are hidden again (because of the On-Load Dynamic Action to hide them). So now the user can't put in a Change Reason...unless they change one of the date fields again which isn't going to be accepted.
Is there a way to determine if a validation error was fired and be able to use that on the On-Load Dynamic Action to hide the two fields? Something like...If the validation fired then don't run?
Please let me know if I'm still confusing you.
Thanks,
Joe

Help with validations...

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