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最新推荐文章于 2025-03-10 20:33:09 发布

原创最新推荐文章于 2025-03-10 20:33:09 发布 · 3.2k 阅读

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本文详细介绍了如何使用Ext.js创建表单和数据网格，并展示了如何通过Ext.create方法创建面板实例，设置表单布局和按钮功能，以及如何通过getForm().setValues()方法设置表单值。

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Ext.form.Panel获取其组件的值：

API里清晰可见

Ext.create('Ext.form.Panel', {
    title: 'Simple Form',
    bodyPadding: 5,
    width: 350,
    // The form will submit an AJAX request to this URL when submitted
    url: 'save-form.php',
    // Fields will be arranged vertically, stretched to full width
    layout: 'anchor',
    defaults: {
        anchor: '100%'
    },
    // The fields
    defaultType: 'textfield',
    items: [{
        fieldLabel: 'First Name',
        name: 'first',
        allowBlank: false
    },{
        fieldLabel: 'Last Name',
        name: 'last',
        allowBlank: false
    }],
    // Reset and Submit buttons
    buttons: [{
        text: 'Reset',
        handler: function() {
            this.up('form').getForm().reset();
        }
    }, {
        text: 'Submit',
        formBind: true, //only enabled once the form is valid
        disabled: true,
        handler: function() {
            var form = this.up('form').getForm();
            if (form.isValid()) {
                console.log(form.getValues());
                /*form.submit({
                    success: function(form, action) {
                       Ext.Msg.alert('Success', action.result.msg);
                    },
                    failure: function(form, action) {
                        Ext.Msg.alert('Failed', action.result.msg);
                    }
                });*/
            }
        }
    }],
    renderTo: Ext.getBody()
});

如你所见,既然有getValues()方法，那就有setValues()方法啦...

var formPanel = Ext.create('Ext.form.Panel', {
    title: 'Simple Form',
    bodyPadding: 5,
    width: 350,
    // The form will submit an AJAX request to this URL when submitted
    url: 'save-form.php',
    // Fields will be arranged vertically, stretched to full width
    layout: 'anchor',
    defaults: {
        anchor: '100%'
    },
    // The fields
    defaultType: 'textfield',
    items: [{
        fieldLabel: 'First Name',
        name: 'first',
        allowBlank: false
    },{
        fieldLabel: 'Last Name',
        name: 'last',
        allowBlank: false
    }],
    // Reset and Submit buttons
    buttons: [{
        text: 'Reset',
        handler: function() {
            this.up('form').getForm().reset();
        }
    }, {
        text: 'Submit',
        formBind: true, //only enabled once the form is valid
        disabled: true,
        handler: function() {
            var form = this.up('form').getForm();
            if (form.isValid()) {
                console.log(form.getValues());
                /*form.submit({
                    success: function(form, action) {
                       Ext.Msg.alert('Success', action.result.msg);
                    },
                    failure: function(form, action) {
                        Ext.Msg.alert('Failed', action.result.msg);
                    }
                });*/
            }
        }
    }],
    renderTo: Ext.getBody()
});


formPanel.getForm().setValues({first:'Haw',last:'King'});

而Grid的数据读取：

Ext.create('Ext.data.Store', {
    storeId:'simpsonsStore',
    fields:['name', 'email', 'phone'],
    data:{'items':[
        { 'name': 'Lisa',  "email":"lisa@simpsons.com",  "phone":"555-111-1224"  },
        { 'name': 'Bart',  "email":"bart@simpsons.com",  "phone":"555-222-1234" },
        { 'name': 'Homer', "email":"home@simpsons.com",  "phone":"555-222-1244"  },
        { 'name': 'Marge', "email":"marge@simpsons.com", "phone":"555-222-1254"  }
    ]},
    proxy: {
        type: 'memory',
        reader: {
            type: 'json',
            root: 'items'
        }
    }
});

var panel = Ext.create('Ext.grid.Panel', {
    title: 'Simpsons',
    store: Ext.data.StoreManager.lookup('simpsonsStore'),
    columns: [
        { header: 'Name',  dataIndex: 'name' },
        { header: 'Email', dataIndex: 'email', flex: 1 },
        { header: 'Phone', dataIndex: 'phone' }
    ],
    height: 200,
    width: 400,
    renderTo: Ext.getBody()
});
panel.on('itemclick',function(self,records){
    console.log(records.data);
});