Extjs Combobox Autocomplete - extjs4

Question

I am using Extjs 4 ComboBox with remote mode. but when i typed any character data is not filtered. and even focus is changed only for first 12 value.
I am new to Extjs 4. Please help me how to do this.
my code is:
Ext.define('MyGroup.combo', {
extend: 'Ext.form.ComboBox',
alias: 'widget.mycombo',
emptyText:'select keyword',
store: keywordStore,
valueField:'name',
displayField:'name',
mode: 'remote',
autoSelect: false,
selectOnFocus:true,
//shadow:true,
//forceSelection: false,
//triggerAction: 'all',
hideTrigger:true,
//multiSelect:true,
typeAhead:true,
minChars:1
});
Ext.define('keywordModel', {
extend: 'Ext.data.Model',
proxy: {
type: 'ajax',
url : '/keywordServlet',
method:'POST',
reader: {
type: 'json',
root: 'rows'
//,totalProperty: 'totalCount'
}
},
fields: [
{name: 'name', mapping: 'name'}
]
});
var keywordStore = Ext.create('Ext.data.Store', {
// pageSize: 10,
model: 'keywordModel'
});

Answer 1

As per my knowledge i think this will be helpful for you:
Ext.define('MyGroup.combo', {
extend: 'Ext.form.ComboBox',
alias: 'widget.mycombo',
initComponent: function() {
this.callParent([arguments]);
}
});
var keywordStore = Ext.create('Ext.data.SimpleStore',{
fields: ['id', 'name'],
data: [[1, 'mr'],[2, 'mr(yes)'],[3, 'mr(no)'], [4, 'example'], [5, 'example(yes)'],[6,'example(no)'],[7,'sample'],[8,'sample(yes)'],[9,'sample(no)'],[10,'mrs'],[11,'mrs(yes)'],[12,'mrs(no)']]
});
Ext.widget('mycombo',{
xtype : 'combo',
emptyText:'select keyword',
store: keywordStore,
valueField:'name',
displayField:'name',
mode: 'remote',
autoSelect: false,
selectOnFocus:true,
//shadow:true,
//forceSelection: false,
//triggerAction: 'all',
hideTrigger:true,
//multiSelect:true,
typeAhead:true,
minChars:1,
renderTo :document.body
});
And one more thing is no one is trying to answer each and every question,but every one is trying to help some body like us:-)