Extjs Pagination, pagingmemory Example, Extjs 4.1.0 Grid Panel with Sorting and Pagination on local memory

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8"/>
    <title>ExtJS 4.1. Grid Pagination Example</title>
 
  <link rel="stylesheet" href="ext-4.2.1.883\packages\ext-theme-gray\build\resources\ext-theme-gray-all.css"/>
<script src="ext-4.2.1.883\ext-all.js"></script>
<script src="ext-4.2.1.883\examples\ux\data\PagingMemoryProxy.js"></script>


    <script>
Ext.onReady(function(){

 Ext.define('Student',{
 extend: 'Ext.data.Model',
 fields:[{name: 'id'},{name: 'name'},{name: 'mobile'} ]
 });

var mydata = {
"success":true,
"totalCount": 24,
"rows":[
{status: true, id:1, name:'Binod', mobile:'0000099257'},
{status: false, id:5, name:'Ishan', mobile:'0002887325'},
{status: true, id:3, name:'Akshu', mobile:'12345070277'},
{status: false, id:4, name:'Sanjay 4', mobile:'999988885'},
{status: false, id:5, name:'Sanjay 5', mobile:'999988885'},
{status: false, id:6, name:'Sanjay 6', mobile:'999988885'},
{status: false, id:7, name:'Sanjay 7', mobile:'999988885'},
{status: false, id:8, name:'Sanjay 8', mobile:'999988885'},
{status: false, id:9, name:'Sanjay 9', mobile:'999988885'},
{status: false, id:10, name:'Sanjay 10', mobile:'999988885'},
{status: false, id:11, name:'Sanjay 11', mobile:'999988885'},
{status: false, id:12, name:'Sanjay 12', mobile:'999988885'},
{status: false, id:13, name:'Sanjay 13 ', mobile:'999988885'},
{status: false, id:14, name:'Sanjay 14', mobile:'999988885'},
{status: false, id:15, name:'Sanjay 15', mobile:'999988885'},
{status: false, id:16, name:'Sanjay 16', mobile:'999988885'},
{status: false, id:17, name:'Sanjay 17', mobile:'999988885'},
{status: false, id:18, name:'Sanjay 18', mobile:'999988885'},
{status: false, id:19, name:'Sanjay 19', mobile:'999988885'},
{status: false, id:20, name:'Sanjay 20', mobile:'999988885'},
{status: false, id:21, name:'Sanjay 21', mobile:'999988885'},
{status: false, id:22, name:'Sanjay 22', mobile:'999988885'},
{status: false, id:23, name:'Sanjay 23', mobile:'999988885'},
{status: true, id:24, name:'Zambia 24', mobile:'8888999997'}
]
}

var storeProxy = {
                  type: 'memory',
                  data: mydata
            };
storeProxy.type = 'pagingmemory';
    storeProxy.reader = {
           type: 'json',
           totalProperty: 'totalCount',
           root: 'rows',
           successProperty: 'success'
       };


    var studentStore = Ext.create('Ext.data.Store',{
model: 'Student',
autoLoad: true,
remoteSort: true,
     pageSize: 7,
proxy: storeProxy
});

studentStore.load();
var dockedPagingToolbar = [];
        dockedPagingToolbar = [{
                  xtype: 'pagingtoolbar',
                  store: studentStore,
                  dock: 'bottom',
                  displayInfo: true
            }];

Ext.create('Ext.grid.Panel',{
renderTo: Ext.getBody(),
store: studentStore,
width: 450,
height: 250,
height: 220,
multiSelect: true,
title: 'Student Records',
//plugins: 'gridfilters',
    dockedItems : dockedPagingToolbar,
columns:[
{xtype: 'checkcolumn', text: 'Status', dataIndex:'status', width: 50},
{text: 'Roll Number', dataIndex:'id', width: 100},
{text: 'Name' , dataIndex:'name', width: 100},
{text: 'Mobile' ,dataIndex:'mobile', flex: 1}
]
   });
 
});

</script>
</head>
</html>

Extjs 5.1.0 Ext.data.field.convert example How to perform some processing when we load a Field's data in Extjs 5.1.0

Some time you feel to create new column in grid based on the existing column like create firstname from given full name or create insertion date.



Sometimes a simple type isn't enough, or we want to perform some processing when we load a Field's data. We can do this using a convert function. Here, we're going to create a new field based on another:



When reading fields it is often necessary to convert the values received before using them or storing them in records. To handle these cases there is the convert method.

For example 1:

{
            name: 'firstName',
            convert: function(value, record) {
                var fullName  = record.get('name'),
                    splits    = fullName.split(" "),
                    firstName = splits[0];

                return firstName;
            }
        }

For Example 2: 

{
     name: 'timestamp',

     convert: function (value) {
         return new Date(value);
     }
 }

Complete Example:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8"/>
    <title>ExtJS Grid Example</title>
    <link rel="stylesheet" href="extjs-5.1.0/packages/ext-theme-gray/build/resources/ext-theme-gray-all.css"/>
    <script src="extjs-5.1.0/extjs5.1.0-all-dashboard.js"></script>
    <script>
 

Ext.onReady(function(){
   
   Ext.define('Student',{
   extend: 'Ext.data.Model',
   fields:[
    {name: 'id'},
    {name: 'name'},
    {name: 'mobile'},
    {name: 'TestColumn',
     convert : function(value, record){
    return record.get('name')+" CHECK";
  }
     
    }
   ]
   });
 
    var studentStore = Ext.create('Ext.data.Store',{
  model: 'Student',
  autoLoad: true,
  data:[
  {status: true, id:'1', name:'Binod', mobile:'9900159257'},
  {status: false, id:'5', name:'Ishan', mobile:'9902887325'},
  {status: true, id:'3', name:'Akshu', mobile:'90351070277'},
  {status: false, id:'4', name:'Sanjay', mobile:'999988885'},
  {status: true, id:'2', name:'Zambia', mobile:'8888999997'}
  ]
 
 }); 
   
  var selectionchangefired = false;
 
 Ext.create('Ext.grid.Panel',{
 renderTo: Ext.getBody(),
 store: studentStore,
 width: 450,
 height: 200,
 multiSelect: true,
 title: 'Student Records',
 plugins: 'gridfilters',
 
 columns:[
  {xtype: 'checkcolumn', text: 'Status', filter: 'string', dataIndex:'status', width: 50},
  {text: 'Roll Number', filter: 'string', dataIndex:'id', width: 100},
  {text: 'Name' , filter: 'string',dataIndex:'name', width: 100},
  {text: 'Mobile' , filter: 'string',dataIndex:'mobile', flex: 1},
  {text: 'Test Column' , filter: 'string',dataIndex:'TestColumn', flex: 1},
  
 ],
 
 
 
 dockedItems: [{
        xtype: 'pagingtoolbar',
        store: studentStore,   // same store GridPanel is using
        dock: 'bottom',
        displayInfo: true
    }]
 
 
 
 });  
   
   
 });
  

 </script>
 </head>
 </html>

Here, Test column is generated during run time based on other field.

Extjs 5.1.0 Checkbox of GridPanel deselect event not working. checkboxmodel deselect not working

I think, this is a bug in Extjs 5.1.0 for CheckboxModel selectionchange doesn't fire when unselect rows.

Add below code where you define selModel:

selectWithEventMulti: function(record, e, isSelected) {
            var me = this;

            if (!e.shiftKey && !e.ctrlKey && e.getTarget(me.checkSelector)) {
                if (isSelected) {
                    me.doDeselect(record); // Second param here is suppress event, not "keep selection"
                } else {
                    me.doSelect(record, true);
                }
            } else {
                me.callParent([record, e, isSelected]);
            }
        },

After adding this above code, your selModel should be like this:

this.selModel = new Ext.selection.CheckboxModel( {
         allowDeselect: true,
         checkOnly: false,
         pruneRemoved: false,
         ignoreRightMouseSelection: true,
         injectCheckbox: 0,

    // ** Newly added code to fix bug
    selectWithEventMulti: function(record, e, isSelected) {
            var me = this;

            if (!e.shiftKey && !e.ctrlKey && e.getTarget(me.checkSelector)) {
                if (isSelected) {
                    me.doDeselect(record); // Second param here is suppress event, not "keep selection"
                } else {
                    me.doSelect(record, true);
                }
            } else {
                me.callParent([record, e, isSelected]);
            }
        },
   
// *************************
        showHeaderCheckbox: true,
         listeners: {
            deselect: function( obj, record, index, eOpts ) {
               alert("check box deselect");
            },
            select: function( obj, record, index, eOpts ) {
               alert("check box select");
            }
         },

Reference: http://www.sencha.com/forum/showthread.php?295764

Extjs 5.1 GridPanel plugins: 'gridfilters' and listeners example

Example contains multiSelect, plugins, checkchange and grid panel listeners.


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8"/>
    <title>Extjs 5.1 Grid Panel</title>
    <link rel="stylesheet" href="extjs-5.1.0/packages/ext-theme-gray/build/resources/ext-theme-gray-all.css"/>
    <script src="extjs-5.1.0/extjs5.1.0-all-dashboard.js"></script>
    <script>
Ext.onReady(function(){
 console.log("I am ready now");

 Ext.define('Student',{
 extend: 'Ext.data.Model',
 fields: ['id','name','mobile']
 });

    var studentStore = Ext.create('Ext.data.Store',{
model: 'Student',
autoLoad: true,
data:[
{status: true, id:'1', name:'Binod', mobile:'0000059257'},
{status: false, id:'5', name:'Ishan', mobile:'0002887325'},
{status: true, id:'3', name:'Akshu', mobile:'00351070277'},
{status: false, id:'4', name:'Sanjay', mobile:'999988885'},
{status: true, id:'2', name:'Zambia', mobile:'8888999997'}
]

});


Ext.create('Ext.grid.Panel',{
renderTo: Ext.getBody(),
store: studentStore,
width: 450,
height: 200,
multiSelect: true,
title: 'Student Records',
plugins: 'gridfilters',
listeners:{
 selectionchange: 'rowclickedevent',
 rowclick: 'rowevent'
},
columns:[
//{xtype: 'checkcolumn', listeners :{check: 'checkchangeEvent'},text: 'Status', filter: 'string', dataIndex:'status', width: 50},
{
xtype: 'checkcolumn',
text: 'Status',
dataIndex: 'status',
flex: 1,
sortable: false,
listeners:{
checkchange:function(cc,ix,isChecked){
alert("Check box is clicked and value is : "+isChecked);
}
}
     },
{text: 'Roll Number', filter: 'string', dataIndex:'id', width: 100},
{text: 'Name' , filter: 'string',dataIndex:'name', width: 100},
{text: 'Mobile' , filter: 'string',dataIndex:'mobile', flex: 1}
],



dockedItems: [{
        xtype: 'pagingtoolbar',
        store: studentStore,   // same store GridPanel is using
        dock: 'bottom',
        displayInfo: true
    }],

checkchangeEvent : function(  cc,ix,isChecked ){
 alert("Check box is clicked and value is : "+isChecked);
},

rowevent : function(c, record, tr, rowIndex, e, eOpts){
   alert("row click number :"+record.length);
},

rowclickedevent : function(c, selected, eOpts){
 alert("selectionchange selected number :"+selected.length);
}

});


});

</script>
</head>
</html>

ExtJs 5.1 GridPanel Plugin gridfilters Example Getting Start

Here we will use plugins: 'gridfilters', for adding filter functionality in GridPanel.
This plugins: 'gridfilters', is new plugin has been added in ExtJS 5.1 for filter to reduce a lot of codes.

Use this plugins: 'gridfilters', in create/define during Ext.grid.Panel and then add filter: 'string', in each column to get this filter functionality.



<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8"/>
    <title>Extjs 5.1 Grid Panel</title>
    <link rel="stylesheet" href="extjs-5.1.0/packages/ext-theme-gray/build/resources/ext-theme-gray-all.css"/>
    <script src="extjs-5.1.0/extjs5.1.0-all-dashboard.js"></script>
    <script>
Ext.onReady(function(){
 console.log("I am ready now");

 Ext.define('Student',{
 extend: 'Ext.data.Model',
 fields: ['id','name','mobile']
 });

    var studentStore = Ext.create('Ext.data.Store',{
model: 'Student',
autoLoad: true,
data:[
{status: true, id:'1', name:'Binod', mobile:'0000059257'},
{status: false, id:'5', name:'Ishan', mobile:'0002887325'},
{status: true, id:'3', name:'Akshu', mobile:'00351070277'},
{status: false, id:'4', name:'Sanjay', mobile:'999988885'},
{status: true, id:'2', name:'Zambia', mobile:'8888999997'}
]

});


Ext.create('Ext.grid.Panel',{
renderTo: Ext.getBody(),
store: studentStore,
width: 450,
height: 200,
title: 'Student Records',
plugins: 'gridfilters',
columns:[
{xtype: 'checkcolumn', text: 'Status', filter: 'string', dataIndex:'status', width: 50},
{text: 'Roll Number', filter: 'string', dataIndex:'id', width: 100},
{text: 'Name' , filter: 'string',dataIndex:'name', width: 100},
{text: 'Mobile' , filter: 'string',dataIndex:'mobile', flex: 1}
],



dockedItems: [{
        xtype: 'pagingtoolbar',
        store: studentStore,   // same store GridPanel is using
        dock: 'bottom',
        displayInfo: true
    }]

});


});

</script>
</head>
</html>

Now if you click on any column, you will get filter functionality.

ExtJs 5.1 GridPanel Basic Example Getting Start

Found some changed while migrating my product from Extjs 4 5o Extjs 5.1, so thought to share with you all.
Here below is very basic example of GridPanel:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8"/>
    <title>Extjs 5.1 Grid Panel</title>
    <link rel="stylesheet" href="extjs-5.1.0/packages/ext-theme-gray/build/resources/ext-theme-gray-all.css"/>
    <script src="extjs-5.1.0/extjs5.1.0-all-dashboard.js"></script>
    <script>
Ext.onReady(function(){
 console.log("I am ready now");

 Ext.define('Student',{
 extend: 'Ext.data.Model',
 fields: ['id','name','mobile']
 });

    var studentStore = Ext.create('Ext.data.Store',{
model: 'Student',
autoLoad: true,
data:[
{status: true, id:'1', name:'Binod', mobile:'0000059257'},
{status: false, id:'5', name:'Ishan', mobile:'0002887325'},
{status: true, id:'3', name:'Akshu', mobile:'00351070277'},
{status: false, id:'4', name:'Sanjay', mobile:'999988885'},
{status: true, id:'2', name:'Zambia', mobile:'8888999997'}
]

});


Ext.create('Ext.grid.Panel',{
renderTo: Ext.getBody(),
store: studentStore,
width: 450,
height: 200,
title: 'Student Records',
columns:[
{xtype: 'checkcolumn', text: 'Status', dataIndex:'status', width: 50},
{text: 'Roll Number', dataIndex:'id', width: 100},
{text: 'Name' , dataIndex:'name', width: 100},
{text: 'Mobile' , dataIndex:'mobile', flex: 1}
],

dockedItems: [{
        xtype: 'pagingtoolbar',
        store: studentStore,   // same store GridPanel is using
        dock: 'bottom',
        displayInfo: true
    }]



});


});

</script>
</head>
</html>

Here dockedItems has been used for pagination.

GWT app engine Missing required argument 'module[s]'

If you get this exception while deploying your project into google app engine.
Then:
http://stackoverflow.com/questions/8628429/google-app-engine-missing-required-argument-modules

When creating a new Google Web Application project, there are 2 options, Google Web Toolkit and Google App Engine which can be selected. I was selecting both so the project which was being created was a GWT project. So while running it was expecting a gwt module and related configuration file.

The solution was to not select "Google Web Toolkit" when creating a new Google Web Application Project.

To disable Google Web Toolkit for your created project, just do like this: 1. select project, right click, and select "Property" 2. Toggle down "Google", select "Web Toolkit" tab, and uncheck "Use Google Web Toolkit". 3. Delete your project in Run configuration. And run again. You will find it never asks for "modules" anymore.