javascript

ExtJS4 gives an example of the default values in the Combobox Settings list

This is the model


Ext.regModel('commemModel', {
fields : [ 'name', 'id' ]
});

The default value for defining a container with a store setting id s1 is the first quarter


var gjcx1 = new Ext.data.Store({
autoLoad:true,
model : commemModel,
proxy : {
type : 'ajax',
url : '../store/cxjd.json'

},
listeners :{
load:function(){
Ext.getCmp('s1').setValue('q1');
}
}

});

The following is cxjd.json


[
{name:' In the first quarter ',id:'q1'},
{name:' In the second quarter ',id:'q2'},
{name:' In the third quarter ',id:'q3'},
{name:' In the fourth quarter ',id:'q4'}
]