I have setup a checkbox and a combobox and I am trying to set up a functionality - when a user checks the checkbox the combobox has to appear. I am new to extjs and I am having issues setting up the function for this functionality.
Ext.onReady(function() {
var tests = [
['Test1'],
['Test3'],
['Test2']
];
Ext.define('Testfile.model.Test', {
extend: 'Ext.data.Model',
fields: ['test']
});
var testsStore = new Ext.data.Store({
model: 'Testfile.model.Test',
proxy: {
type: 'memory',
reader: {
type: 'array'
}
},
data: tests
});
var form = Ext.create('Ext.form.Panel', {
renderTo: document.body,
bodyPadding: 10,
width: 550,
style: 'margin:16px',
height: 300,
title: 'Testing example',
items: [{
xtype: 'checkbox',
name: 'system',
boxLabel: 'Production (PACTV)',
iputValue: 'production',
listeners: {
check: function (checkbox, isChecked) {
var sample = Ext.getCmp('secondComboID');
}
}
}, {
xtype: 'combobox'
fieldLabel: 'Select Test',
id: 'secondComboID',
store: testsStore,
valueField: 'id',
displayField: 'test',
typeAhead: true,
forceSelection: true,
allowBlank: false,
editable: true,
triggerAction: 'all',
lastQuery: ''
}]
});
Ext.getBody().add(me.form);
})
Can someone please suggest a fix to the script?
I would use the change
event: http://docs.sencha.com/extjs/4.2.2/#!/api/Ext.form.field.Checkbox-event-change
listeners: {
change: function(checkbox, newValue, oldValue, eOpts) {
var combo = checkbox.up('form').down('combobox');
if (newValue) {
combo.show();
} else {
combo.hide();
}
}
}
Also, please notice the use of the hierarchy navigation methods up()
and down()
. Using these (or other related methods) to find the component is much more preferable than using hard-coded component Ids.
Here's a working example of your code: https://fiddle.sencha.com/#fiddle/ua
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.