Posts Tagged "Extjs"

This is the short post that I want to share, cause last year I had created form in Extjs and submitted using ENTER key event so I want to share that here the simple code in Extjs form to enabling ENTER key event, but using this code your mouse cursor should be focused on one of the field inside the form, this is very simple so I don’t think I need to provide the downloadable source code, here it goes:

Ext.onReady(function(){
    var formLogin = new Ext.FormPanel({
        frame: false, border: false, buttonAlign: 'center',
        url: BASE_URL + 'user/extjs_login', method: 'POST',
        id: 'frmLogin',
        items: [{
            xtype: 'textfield',
            fieldLabel: 'Username',
            id:'fldusername',
            name: 'username',
            allowBlank: false
        }, {
            xtype: 'textfield',
            fieldLabel: 'Password',
            id:'fldpassword',
            name: 'password',
            allowBlank: false,
            inputType: 'password'
        }],
        buttons: [
            { text: 'Login' },
            { text: 'Reset', handler: function() {
                    formLogin.getForm().reset();
                }
            }
        ],
        keys: [
            { key: [Ext.EventObject.ENTER], handler: function() {
                    Ext.Msg.alert("Alert","Enter Key Event !");
                }
            }
        ]
    });

    var winLogin = new Ext.Window({
        title: 'Extjs Enter Key Event', layout: 'fit',
        width: 340, height: 140, resizable: false,
        closable: false, items: [formLogin]
    });

    winLogin.show();
});

Like another tutorial this post will create the basic form login and register using Extjs and Codeigniter, and I want to mix my previous post about Codeigniter Session Library, Extjs Unique Field Validation and using Statusbar in Extjs Window.

1. Setting up the database

Using phpmyadmin in XAMPP I create the database named “ci_extjs_login”, and create simple “users” table, here below is the sql code that I generated from phpmyadmin, for more advance database modelling you can use mysql workbench.

CREATE TABLE  `ci_extjs_login`.`users` (
`id` INT NOT NULL AUTO_INCREMENT PRIMARY KEY ,
`username` VARCHAR( 100 ) NOT NULL ,
`password` VARCHAR( 100 ) NOT NULL ,
`email` VARCHAR( 100 ) NOT NULL
) ENGINE = MYISAM ;

In this tutorial i want to show you how to masking a form when user enter a submit button, statusbar that used in this tutorial is from the Extjs ux example, so I borrow this cause it is useable plugin, like always on the server side process I use simple PHP scripting. I created this post because when I used a form in Extjs and the user make a request it seem not really responsive, the system should interact the user, inform what is going on in the system and most user is not advance user. Let’s get started:

1. Setting the StatusBar

Copy the StatusBar css file and icon from the default examples to your desired folder,  first the css file you can find it in “extjs/examples/ux/statusbar/css/statusbar.css”, I copy it to another folder called “css” and next the statusbar icon is in “/extjs/examples/ux/statusbar/images” and I copy all the icon files to another folder called “img” most the file structure you can see it on the image on the right, this is how it look in Netbeans project. You can see the “form_masking.html” and “server_response.php” file, this is the main file that we have to create, and it will be mentioned on the next step, but before that we have to edit the StatusBar.css file that we have copied so the icon can be loaded, by changing the “background-image” properties. So find this all code like this

When I write this post, a friend of mine asking me how to get the value from all the row in EXTJS grid, she use EditorGridPanel to make the grid editable by it’s user, and submit all edited value in each row to the server  i’m using php to take all the server side process). Actually the idea is very simple, the grid need to have sm config options it is a shorthand for selModel and this config that make the grid can be selected per row, and you can added the checkboxselection model to choose the row that you desired, so trid to make it simple tutorial, and at the of the post you can download the source from this post.

1. Setting the main page
Include the EXTJS file (javascript and css) in html header file, then create single div with an id to where the grid to put on, and i’m using inline css style to centering the div the on the page

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<link rel="stylesheet" type="text/css" href="extjs/resources/css/ext-all.css"/>
<script type="text/javascript" src="extjs/adapter/ext/ext-base.js"; ?>"></script>
<script type="text/javascript" src="extjs/ext-all.js"; ?>"></script>
</head>

/* This should be fill with the EXTJS script code
 * It explain on the next step
 */

// on the body section
<body>
<div id="grid-example1" style="height: 200px;width:600px;margin:0 auto;padding:20px;"></div>
</body>
</html>

In this post I try to share my code about form validation in EXTJS, so why another EXTJS form validation tutorial? well, the EXTJS default form validation is quite great, but most sample that I’ve found it just using client side validation and the only server side validation is when the user press submit button. So in this post the I modified a bit code about custom form validation in EXTJS, and here I’m not using database. The expected result should be like this

ExtJS is one of the most popular javascript user interface framework, it offer a bunch of great user interface component, if you are a Java Programmer it better you use the Ext-GWT, but if you are a web programmer who always using web scripting language such as PHP, it may be painless if you learn the new web interface beside the traditional HTML, but i did it and mix it with Codeigniter in purpose to create and maintain better PHP code, and it’s not really bad and here some advice I have for you :

1. Follow the examples

ExtJS come with a bunch of great sample use of using widget, this provide the basic use of the component, creating plugin, etc. This is the best way to know what you can do with the component and how to implement the component by viewing the source code, if you somehow don’t understand what the code means, simply you can consult the API documentation first. Just download it first and run on your local server or you can view it online.