1. #1
    Sencha User
    Join Date
    Jul 2012
    Location
    Bangalore
    Posts
    113
    Vote Rating
    0
    kramprabhu is on a distinguished road

      0  

    Default Unanswered: Ext.Viewport duplicate instance

    Unanswered: Ext.Viewport duplicate instance


    How to avoid Ext.Viewport duplicate instance.

    I have main menu.. from there I call respective view buy uisng

    Ext.Viewport.setActiveItem({xtype: 'viewalias'});

    This works fine. But in my veiw I have come ComponentQuery for identifying some panels and buttons.
    This also works fine for first time.. if you go back to main menu and come back agian.. then this ComponentQuery is not fetching / not working.

    Suspecting the Ext.Viewport is creating duplicate instances.. and hence there is conflict.

    Let me know is there alternative for Ext.Viewport.setActiveItem({xtype:.....}) or best way to use it.

    Thanks
    -Ram

  2. #2
    Sencha - Senior Forum Manager mitchellsimoens's Avatar
    Join Date
    Mar 2007
    Location
    Gainesville, FL
    Posts
    37,525
    Vote Rating
    872
    Answers
    3564
    mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute

      0  

    Default


    You can try this:

    Code:
    var comp = Ext.Viewport.child('viewalias');
    
    if (!comp) {
        comp = { xtype : 'viewalias' };
    }
    
    Ext.Viewport.setActiveItem(comp);
    Mitchell Simoens @SenchaMitch
    Sencha Inc, Senior Forum Manager
    ________________
    Check out my GitHub, lots of nice things for Ext JS 4 and Sencha Touch 2
    https://github.com/mitchellsimoens

    Think my support is good? Get more personalized support via a support subscription. https://www.sencha.com/store/

    Need more help with your app? Hire Sencha Services services@sencha.com

    Want to learn Sencha Touch 2? Check out Sencha Touch in Action that is in print!

    When posting code, please use BBCode's CODE tags.

Thread Participants: 1

Tags for this Thread