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  1. #1
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    Default Answered: How to access to a parameter defined into a parent element

    Answered: How to access to a parameter defined into a parent element


    Hi,
    With a piece of code It will be easier to explain...

    I have many tabs, in each of them I declared an id dID.

    Code:
    items.push({
        inTab: true,
        xtype: 'devicelog',
        device: device,
        dID: dID,
        closable: false,
        listeners: {
            scope: this
        }
    });
    devicelog is my child form panel. I would like to access to this parent variable (dID).

    This dID value should be associated to this data parameter as showed below.
    Code:
    {
        xtype: 'button',
        text : 'On',
        //parentContainer:this,
        //enableToggle: true,
        /*handler: function() {
            alert('You clicked the button!')
        },*/
        listeners: {
            click: function() {
                // this == the button, as we are in the local scope
                //this.setText('On '+this.parentContainer.getId());
                Ext.Ajax.request({
                    method:'PUT',
                    type:'rest',
                    url: 'app.php/execs',
                    params: {
                        data: Should-be-the-dID-parameter,
                        action:'on'
                    },
                    success: function(response){
                        var text = response.responseText;
                        // process server response here
                    }
                });
            }
        }
    },
    Do you know which method can I use to get the dID value ?
    Thank you for your help and your time !
    Shensi

  2. Hi shensi,

    You just simply find the parent panel which contain dID property like...

    Code:
    var  id = childFormPanel.findParentByType('tabpanel').dID;
    For more information see http://docs.sencha.com/ext-js/4-0/#!...d-findParentBy

  3. #2
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    Default


    First access the devicelog component and then with dot operator access the diD config.

  4. #3
    Sencha - Community Support Team sword-it's Avatar
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      0  

    Default Use findParentByType() method

    Use findParentByType() method


    Hi shensi,

    You just simply find the parent panel which contain dID property like...

    Code:
    var  id = childFormPanel.findParentByType('tabpanel').dID;
    For more information see http://docs.sencha.com/ext-js/4-0/#!...d-findParentBy
    sword-it.com, Sencha Developer House in Turkey - Istanbul University Technopark Suite 204.

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    Default


    Hi sword-it,

    I tried what you said, but it still doesn't work :-(

    This is my modification and my understanding :

    Code:
    {                xtype: 'fieldset',
                    //flex: 1,
                    title: 'Quick test',
                    defaultType: 'checkbox', // each item will be a checkbox
                    layout: 'anchor',
                    items: [
                    {
                        xtype: 'button',
                        text : 'On',
                        //parentContainer:this,
                        //enableToggle: true,
                        handler: function(btn, e) {
                            //This is an alias of my tabpanel item -> firebug says : btn.findParentByType("deviceinfotab") is undefined
                            var id = btn.findParentByType('deviceinfotab').dID;
                            //This is an alias of a deviceinfo tabpanl which contain all tabs -> firebug says : the console says 'undefined' without error
                            var id = btn.findParentByType('deviceinfo').dID;
                            console.log(id);
                        },
                        listeners: {
                            click: function() {
                                // this == the button, as we are in the local scope
                                //this.setText('On '+this.parentContainer.getId());
                                Ext.Ajax.request({
                                    method:'PUT',
                                    type:'rest',
                                    url: 'app.php/execs',
                                    params: {
                                        data: this.id,
                                        action:'on'
                                    },
                                    success: function(response){
                                        var text = response.responseText;
                                        // process server response here
                                    }
                                });
                            }
                        }
    
                    },


    This is the modification of my tab item :

    Code:
    items.push({    inTab: true,
        alias: 'widget.deviceinfotab',
        xtype: 'deviceaction',
        device: device,
        dID: dID,
        closable: false,
        listeners: {
            scope: this
        }
    });


    Hope I will find soon...
    Cheers

  6. #5
    Sencha - Community Support Team sword-it's Avatar
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    Default


    Did you try to debug:
    Code:
    var parent = btn.findParentByType('deviceinfotab');
    if 'deviceinfotab' is found and it contains dID property then you can get the dID value. That would certainly work.

    According to your latest code you can try the following:
    Code:
    var id = btn.findParentByType('deviceaction').dID;
    Last edited by sword-it; 24 May 2012 at 5:12 AM. Reason: misspelling
    sword-it.com, Sencha Developer House in Turkey - Istanbul University Technopark Suite 204.

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    Default


    Nice one boss,

    It was exactly this line to write :

    Code:
    var id = btn.findParentByType('deviceaction').dID;
    Thank you very much for your help

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