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    Default Unable to load data value in simplestore dynamically

    Unable to load data value in simplestore dynamically


    Hi All,

    I am fairly new to ExtJS.
    I am trying to load my combo box on depending upon selected value from the previous combo box. (Same Old Country-state scenario) i am making an ajax call and getting values too and assigning in 'data' but it is showing just 2nd character of my variable.


    Code:
    attributeStore = new Ext.data.SimpleStore({
            fields: ['idc','criteria'],
            data  : [ sb ]
    });
    
    var tempcriteria = Ext.getCmp('criteriaId');
    tempcriteria.bindStore( attributeStore );
    from ajax's call I am assigning
    Code:
    sb = ['CITY_NAME','CITY_NAME'],['CNTRY_NAME','CNTRY_NAME'],['STATUS','STATUS']
    But all I am getting is ' <single inverted comma>. Since its the 2nd character in sb.
    I tried changing data to

    Code:
    data : ['sb']
    My combo box is filled with 'b'

    Its bit weird thing happening. I even tried
    Code:
    data : [['CITY_NAME','CITY_NAME'],['CNTRY_NAME','CNTRY_NAME'],['STATUS','STATUS']]
    which works smoothly.
    I am assuming I am making a silly mistake somewhere.
    Appreciate any help.

    Regards,
    M. Rizwan Khan

  2. #2
    Sencha - Architect Dev Team aconran's Avatar
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    Quote Originally Posted by mr.khan View Post
    I even tried
    Code:
    data : [['CITY_NAME','CITY_NAME'],['CNTRY_NAME','CNTRY_NAME'],['STATUS','STATUS']]
    which works smoothly.
    An array of arrays is the correct format you should be returning
    Aaron Conran
    @aconran
    Sencha Architect Development Team

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    Hi Aconran,

    Thanks for quick response.
    Yeah this works

    data : [['CITY_NAME','CITY_NAME'],['CNTRY_NAME','CNTRY_NAME'],['STATUS','STATUS']]but when assigning
    sb = ['CITY_NAME','CITY_NAME'],['CNTRY_NAME','CNTRY_NAME'],['STATUS','STATUS']
    at runtime and then giving

    attributeStore = new Ext.data.SimpleStore({
    fields: ['idc','criteria'],
    data : [ sb ]
    });

    it is just displaying ' <single inverted comma> in combobox.

    Regards,
    M. Rizwan Khan

  4. #4
    Sencha - Architect Dev Team aconran's Avatar
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    Try
    Code:
    sb = [['CITY_NAME','CITY_NAME'],['CNTRY_NAME','CNTRY_NAME'],['STATUS','STATUS']];
    
    attributeStore = new Ext.data.SimpleStore({
            fields: ['idc','criteria'],
            data  : sb
    });
    Aaron Conran
    @aconran
    Sencha Architect Development Team

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    Yeah, what you suggested worked.
    But when assign the my String to 'sb' it doesnt work.
    I understood the problem is I am giving a String to 'data' whereas it is expecting array of array.

    Thanks Acronran. I'll now have to convert my String (
    [['CITY_NAME','CITY_NAME'],['CNTRY_NAME','CNTRY_NAME'],['STATUS','STATUS']])

    to array of array, Don't wanna be a burden but any idea how to do that ?

    Regards,
    M. Rizwan Khan

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    Sencha - Architect Dev Team aconran's Avatar
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    an unsafe way would be to simply eval it.

    A safer way would be to stick it into a JSON object, decode it and then use that.
    Aaron Conran
    @aconran
    Sencha Architect Development Team

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    Thanks a lot aconran. Gone with the unsafe way and its working now.

    Cheers,
    M. Rizwan Khan

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