Simple login form with SenchaTouch

问题

Just diving into SenchaTouch which seems very promising.

I'm building my first application, a simple login form check source http://pastebin.com/8Zddr9cj

I'm looking for a way to do the following things :

Display 'nice' error message when the login/password is wrong. Can be in red to replace the 'Please enter your credentials); i don't know how to access this property.
If login success, close the form and load the application (probably another js file).

Quite simple, but i'm a newbie to this,

回答1:

1) Fieldset has a method called setInstructions which you can call to update the instructions. So, you could specify an id configuration in your field set, then use that later on when you want to update the instructions.

...
items: [
    {
        xtype: 'fieldset',
        id: 'fieldset',
        title: 'Login',
        instructions: 'Please enter your credentials',
        defaults: {
            required: true,
            labelAlign: 'left',
            labelWidth: '40%'
        },
        items: [
        {
            xtype: 'emailfield',
            name : 'email',
            label: 'Email',
            placeHolder: 'your@email.com',
            useClearIcon: true
        }, {
            xtype: 'passwordfield',
            name : 'password',
            label: 'Password',
            useClearIcon: false
        }]
    }
],
...

//wherever you want to update the instructions
var fieldset = Ext.getCmp('fieldset');
fieldset.setInstructions('My new instructions!');

2) Here is a simple demo of this:

//create a panel, which is full screen, and will contain your form, and another item
//which you want to show at some point
var wrapper = new Ext.Panel({
    fullscreen: true,
    layout: 'card',

    //my two items
    items: [
        form,
        {
            xtype: 'panel',
            html: 'my second panel, which is not visible on render.'
        }
    ]
});

//change the active card/item, when you need to
wrapper.setActiveItem(1); //starts at 0

Make sure you remove fullscreen from your form, as it is no longer fullscreen (this wrapper panel is).

来源：https://stackoverflow.com/questions/5339831/simple-login-form-with-senchatouch

标签

forms

sencha-touch