Rookie help, initializes a extjs combox, but can not get the values ??

 This post last edited by the toss2000 on 2011-03-30 09:20:38

one needs to initialize a combox, want to immediately get its value , the results can not be obtained , please help pointing twelve brothers combox following initialization code
var templateStore = new Ext.data.JsonStore ({
url: '.. / templateManage.do? method = queryAllTemplate',
root: 'root',
fields: [{
name: 'reportId',
type: 'int'
}, {name: 'name', type: 'string'}],
autoLoad: true,
listeners: {
load: function () {
Ext.getCmp (combo.id). setValue (templateStore.getAt (0). get ("reportId"));
}
}
});
combo.id represents a combox id value , I want to do right away to get the value of combox other users as a result, through combo.getValue () to get an empty value, brothers see how it has there is no better way Here are some of the code combo
var combo = new Ext.form.ComboBox ({
id: 'comboId',
fieldLabel: ' Letters template selection ',
store: templateStore,
name: 'reportId',
......
------ Solution ---------------------------------- ----------
I'll give you an example see it

  		var user_dataProxy = new Ext.data.HttpProxy({
          url: '__URL__/usershow',
          method: 'POST'
      });
  
    var user_dataReader = new Ext.data.JsonReader({
    	root: 'root',
    	id: 'id',
    	fields:['id','name']
    	});
  
  	var user_store = new Ext.data.Store({  		
     		proxy: user_dataProxy,
     		reader: user_dataReader,
     		autoLoad: true
  
  	});
     var combouser =new Ext.form.ComboBox({
     				  					  xtype:"combo",
  		  					  	fieldLabel: 'Author',
  		  					  	name: 'authorlist',
  										store:user_store,
  		           		
  		           			 		displayField:'name', 								      
  		           			 		valueField: 'id', 							      
  		           			 		mode: 'remote',
  		           			 		editable:false,	
  		           			 		width:200,
  									      triggerAction: 'all',									      
  									      emptyText:'Select an user',
  									      //readOnly: true, 		
  									      hiddenName: 'author' 	
       });	
  

------ Solution ------------------------------------- -------
your logic issues now

When you load data request does not return you to fetch data ~ ~

You can at any other time values ​​such as the bottom of the whole page is loaded to write a method in which access to the upper combox value
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get their own , as follows , and I hope the brothers needed who help
var templateStore = new Ext.data.JsonStore ({
url: '.. / templateManage.do? method = queryAllTemplate',
root: 'root',
autoLoad: true,
fields: [{
name: 'reportId',
type: 'int'
}, {name: 'name', type: 'string'}]});

templateStore.on ('load', function ()
{
combo.setValue (templateStore.getAt (0). get ("reportId"));
historyStore.baseParams.conditions = combo.getValue () ;/ / Note that only in this place get combo.getValue () value , this value can not be obtained elsewhere , historyStore also a data sets, to first obtain combo.getValue () for loading the value as a parameter
historyStore.load ();
});
first sun drying , after Jietie
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actually no attention , well, Jietie the
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very good, very good, very good, very good, very good, very good, very good, very good ,
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today happens to encounter this problem, try
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help it a bit , but, and my problem is not the same