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    Default Unanswered: Alternatives Ext.getCmp() is Ext.ComponentQuery, but how use it right?

    Unanswered: Alternatives Ext.getCmp() is Ext.ComponentQuery, but how use it right?


    Hello Friends!

    I have problem with Ext.ComponentQuery.query().

    Several days ago I have finished my first application. But there I used Ext.getCmp() to get references.
    But I have read article where was explained why Ext.getCmp() is bad style. now I want to understand how works Ext.Component.Query.query() method. Here some testing example:111222.png

    Ext.onReady(
    function(){

    Ext.create('Ext.Panel',{
    renderTo:Ext.getBody(),
    title:'121212',
    width: 500,
    height: 200,
    layout:'column',
    items:[
    {
    xtype:'button',
    text:'Button',
    handler:function()
    {
    var btn=Ext.ComponentQuery.query('textfield');
    alert('some');
    btn[0].hide();
    btn[0].setRawValue('jjjj');
    }
    },
    {
    xtype:'textfield',
    fieldValue:'text'
    }
    ]
    });
    });

    I cant get results how i expected
    Last edited by kramal; 1 Feb 2013 at 12:22 AM. Reason: to make easy our life

  2. #2
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    Default


    You could change your button handler to do something like this:

    Code:
    handler:function(){
      this.up('panel').down('textfield').setValue('jjjj');
    }
    Keep in mind that it's also perfectly fine to use itemId: 'someValue' on child components in a container. This just gives them a unique name within the parent container against which you can query:

  3. #3
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    Thank you ! I understand it

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