1. #1
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    Default Custom Render event does not fire???

    Custom Render event does not fire???


    hi, I just switched to Ext 4.1 beta, heard that 4.0 is no good.

    Now the render event does not fire anymore!!! Why


    Ext
    .define('My.awesome.Class', {
    extend: 'Ext.Component',

    initComponent: function(){
    alert('init')
    this.callParent();
    },


    render: function(){
    alert('render');
    this.callParent();

    },
    someMethod: function() { }

    }, function() {

    var myInstance = new this();
    });
    Ext.create('My.awesome.Class', {
    });

  2. #2
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    Default


    The render event or method?
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  3. #3
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    The render event.

    If you run the dummy component, the render event did not fire.

    Thanks for the reply

  4. #4
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    Default


    This was a bug in beta 3 but the render events have been fixed for the next release.
    Mitchell Simoens @SenchaMitch
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  5. #5
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    Default


    Also in your code you aren't listening to any render event.
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  6. #6
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    thanks.

    Should i go back to 4.0?

    what is the best practice to listen to the render event?

    isn't it enough to just do:

    render: function(){
    }

    the way initComponent does?

  7. #7
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    You can use a template method instead of using listeners. Of course if you ever use MVC events will be the preferred way but if you're not using MVC then it's up to the dev to choose to use the methods or events.
    Mitchell Simoens @SenchaMitch
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  8. #8
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    can you explain further? sorry i am not following

  9. #9
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    So to listen for an event you can do this:

    Code:
    initComponent : function() {
        this.callParent();
    
        this.on('render', someFuncton, this, { single : true });
    }
    Or when you create the instance:

    Code:
    listeners : {
        single : true,
        render : someFunction
    }
    Or with MVC:

    Code:
    this.control({
        'somextype' : {
            render : this.someFunction
        }
    });
    Or you can use the template methods like render or afterRender.
    Mitchell Simoens @SenchaMitch
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  10. #10
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    Cool.

    I wish i could see more code samples like this. The blog is awesome

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