I am learning Java but have a strong C# background. I am trying to figure out the syntax to do this in Java. In C# I would do the following to enable all text boxes in a panel
private void EnableAll() {
foreach (Control ctrl in Panel1.Controls) {
if (ctrl is Textbox)
((Textbox)ctrl.Enabled = true;
}
}
Is there something similar I can do in Java to do the same thing.
I am developing one form in jsf/primefaces. I have two inputText(inputMask) for e.g moble number and telephone number. I want to restrict the user to put only one of these two fields . That means if user starts putting value in mobile no. then telephone no. field should be disabled and if user starts putting value in telephone no. then mobile no. field should be disabled.
how should I do this.
I have a class that extends JFrame, within that, i have set up JPanel where within that i have four JComboBoxes, I am to enable this JPanel and its JComboBoxes at the end of a method
The code for that method is:
private void tableNumberJComboBoxItemStateChanged() {
// load data for table
try {
// get data for table
myResultSet = myStatement.executeQuery("SELECT * FROM"
+ "restauranttables WHERE tableNumber = " + Integer.parseInt(
selectedTableNumber));
[Code] ....
I am not sure how to enable this JPanel? I have another Jpanel to Disable but one question at a time i suppose.
I have created one dataTable in page and shown some columns but I want to show only those columns which have entries ( if any column doesn't have record then it should not be displayed on the page.) . How should I put validation on this and display table.
View Replies View RelatedI'd like to disable/enable SelectManyCheckbox and the SelectOneMenu based on my selection. I have two radio buttons to be selected whether A or B. The SelectManyCheckbox and the SelectOneMenu should be disabled at the first run. When the user selects “A” the SelectManyCheckbox and the SelectOneMenu should be enabled and if the users selects “B”, the SelectManyCheckbox and the SelectOneMenu should be disabled and the items should be empty. I tried to use <f:ajax render="certificates"/>, but it doesn't work properly.
<h:selectOneRadio id="request" layout="pageDirection" value="#{user.hrRequest}" required="true" requiredMessage="Error: Select a Request Type">
<f:selectItem itemLabel=" Request A" itemValue="A"/>
<f:selectItem itemLabel="Request B” itemValue="B"/>
<f:ajax render="certificates"/>
[Code] ....
When i click on the button from bottom panel, top panel need to be redrawn. But redrawing is not happening. It happens only when resizing the applet.
public class Graphics_Chart(){
public init(){
JScrollPane topPane = new JScrollPane(new ImagePanel2());
topPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
topPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_NEVER);
[code]...
So here is what i have so far for my sudoku game. Now my grid only displays textboxes where a user can input numbers but nothing will happen yet. I want to know how to make it so that the user can only input one character and only numbers. i would also like to know how to make some textboxes jdialogs displaying uneditable numbers that im taking from a sudoku website for the puzzle.
Main Class
import javax.swing.JOptionPane;
public class Game{
public static void main(String[] args) {
JOptionPane.showMessageDialog(null, "Hello. Welcome to a game of Sudoku by Ezra Zike.");
Level select = new Level();
[Code] .....
I have a question with this gui project I am building, I have gotten the code to work in very basic forms such as the main part of calculations and etc. But now I am in the phase of validation to make sure the textboxes aren't empty and are in the correct format. I have done alot research already. I would like to use a Joptionpane to warn the user of an invalid entry. But I have tried many different methods and I can't seem to get them to work.
private void calculateActionPerformed(java.awt.event.ActionEvent evt) {
double loanAmt;
int years;
boolean validData;
double rate,total,calcRate,payment,amount,numMonths,totalPayment,paymentRounded,numMonthsRounded;
[Code] .....
When ran I get these errors: (only copied a few of the main lines)
Exception in thread "AWT-EventQueue-0" java.lang.NumberFormatException: For input string: "p"
at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1241)
at java.lang.Double.parseDouble(Double.java:540)
at car.loan.NewJFrameCarloan.calculateActionPerformed(NewJFrameCarloan.java:228)
at car.loan.NewJFrameCarloan.access$500(NewJFrameCarloan.java:17)
at car.loan.NewJFrameCarloan$6.actionPerformed(NewJFrameCarloan.java:106)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
I am trying to make the variables that will be taken in from a type='text' box in HTML in NetBeans available to the other servlets as well as store and display the latest value passed into these boxes on the servlet page when the submit button is clicked or display null if the box has not yet received a value. However, I do not understand how to do this and do not understand as to why my current output is always null?
i) Is ServletContext().getAttribute("name of my textbox") really the way to pass the attributes to all servlets?
ii) Is ServletContext() passed in the service request?
iii) How to store the latest value passed into the submit box?
Here is my code
index.html
<html>
<head>
<title>Lab One</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
First Name: <input type="text" name="firstName">
[code]....
Is it possible to enable & disable "jdk.certpath.disabledAlgorithms" property programmatically. I want to remove all disabled Algorithms for some time and later I will enable it.
Or is it possible to enable only for a particular place & not in a JVM level. I want that Algorithm need to be enabled for a piece of code, but I don't want it to the remaining part of the application.
I would like to access a third party websevice using a Java client that I generated with JAX-WS wsimport, based on the WSDL provided (I am using a Maven plugin).
For quite a while I was unable to retrieve a useful response, not in the Java client and also not in SoapUI, until I found out that I had to enable WS-A on the request. In SoapUI this now results in the expected response, but what must I do to also 'enable' WS-A in the Java client? Do I maybe have to alter the WSDL, or add a parameter to wsimport?
I found some documentation on WS-A online, but so far could not find an answer.
Enable Radio Button Based On The Value Selected From Database ????
View Replies View RelatedI have multiselection working in my TableView but only via shift-click or using the keyboard but how do I enable the selection of several table rows via a mouse drag? It does not seem to work out of the box.
View Replies View RelatedI have two(panel1 and panel2) panels in a jframe,all three of them are different classes .
In jframe there is a display panel on which the panel1 and panel2 are called and displayed.
now i have a button in panel1 .i want that when i will click on that button panel2 will be displayed or added to the dispalypanel of jframe.
If this is the C Programming codes for disabling the USB port:
system("reg add HKEY_LOCAL_MACHINESYSTEMCurrentControlSetSer vicesUSBSTOR /v Start /t REG_DWORD /d 4 /f");
How can I use the codes below in Java using Netbeans?
I want to disable one of the JMenuItem on load itself but when i tried with following code it is disabling after I selected the JMenuitem.
what additional changes are needed to make it work accordingly.
this.onOffItem = new JMenuItem("Filter");
this.onOffItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
applyTruthFlag(currentBTE.isTruthFlag());
}
});
this.menuFilter.add(this.onOffItem);
private void applyTruthFlag(boolean truthAuswertung) {
this.onOffItem.setEnabled(truthAuswertung);
//this.onOffItem.repaint();
}
I have a website which requires login. After I enter username and password and click login button, a new page is loaded. In that page I have a username in the right up corner. When the user clicks logout button, Session.Clear() method is called and also Response.Redirect(" to login page "). It works OK, but the problem appears when I then click Back button in the browser. It gets me back to previous page with the username in the right up corner. Insted, I would like to show message asking user to enter password again so he can login properly.
What should i do at client side???
I want my jrame should not be resized when clicking on maximize button of window.and for this i have put setResizable(false)in the constructor of class which extends Jframe.
View Replies View RelatedI am using jsf with richfaces. Scroll bar inside panel grid is displayed. Need to disable / hide the bowser (IE-9) scroll bar.
style="overflow:hidden"
Added above style, but not working.
I want to disable the read write execute permissions for the users on C:/ drive. i.e. to disable their Administrator rights. How can I do it using Java?
View Replies View RelatedI'd like to enable/disable a jpanel and it's entire contents in one fell swoop. I could of course call each component's .setEnabled() method, but I figured there must be a better way!
View Replies View RelatedI've searched everywhere but found no way to disable loading of images by Java WebEngineHow to do it?
Research done:
I found some ideas, such as using URL.setURLStreamHandlerFactory() to use my own URLStreamHandler, and having that analyze the URL to only return URLConnections for URL's that don't end in .jpg .png etc.
But that has many problems: Sometimes the image url doesn't end in .jpg, if it's a dynamic image, such as a captcha. So how can I disable automatic image loading from WebEngine?
Is there a way to disable sorting by clicking on the JTable headers?I have tried a few ways but because I am sorting the data when I load it that 'breaks' that also. Here is what I am trying to achieve.
Sort by 3 columns:
table.setAutoCreateRowSorter(true);
table.getRowSorter().toggleSortOrder(6);
table.getRowSorter().toggleSortOrder(7);
table.getRowSorter().toggleSortOrder(5);
table.getRowSorter().toggleSortOrder(5);
but then I want it so the user cannot resort that when the table is displayed..
I am using the following code to create a dialog , but my need is user can select only 1 entry . Using this code
can select multiple items by pressing Ctrl ... How it can avoid ... My current code is
Java Code:
SecureCloudStorage_Service service = new SecureCloudStorage_Service();
List<String> files = service.getSecureCloudStoragePort().listFiles();
SelectFileDialog dialog = new SelectFileDialog(this.getFrame(),true,files);
Toolkit toolkit = Toolkit.getDefaultToolkit();
Dimension screenSize = toolkit.getScreenSize();
int x = (screenSize.width - dialog.getWidth()) / 2;
int y = (screenSize.height - dialog.getHeight()) / 2;
dialog.setLocation(x, y);
dialog.setVisible(true); mh_sh_highlight_all('java');
I have in my application a button that when it is pressed, runs a long running task (usually takes a couple of seconds....).
My problem is that while the task runs, I want to stop the button from receiving clicks. Unfortunately this is something I have not achieved.
I have tried creating a new thread and calling the long running method, and using the Display.geCurrent().asyncExec...
Examples of what I have tried so far:
myButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
if (myList.size() > 0) {
myButton.setEnabled(false);
myButton.setGrayed(true);
[Code] .....
In both cases, while the button is disabled and the cursor busy, if the user clicks the button, the long running method is ran several times - and this is what I want to avoid.
Is there a way to achieve this? Using setDisable(true) deactivates the entire control. I want the drop down menu items to still be accessible, but the action area visibly inactive.
View Replies View Related