我是ext js的新手（处理ext js 6.2）并尝试从组合框中获取值以从所选值中获取3d条形图，但我既没有选择值也没有选择值的图表。请帮我摆脱这个问题。
我的代码如下：
2FAData.js：
Ext.define('LICApp.store.2FAData', {
extend: 'Ext.data.Store',
alias: 'store.2fa-data',
requires: [
'Ext.data.reader.Xml'
],
autoLoad: true,
fields: ['name', 'cnt', 'zone'],
groupField: 'zone',
proxy: {
type: 'ajax',
cors: 'true',
url: 'http://localhost:8080/UserManagement/rest/BiodataController/bio',
method: 'POST',
reader: {
type: 'xml',
record: 'biodata',
rootProperty: 'biodatas'
}
},
});
Basic.js
Ext.define('LICApp.view.charts.bar3d.Basic', {
extend: 'Ext.Panel',
xtype: 'bar-basic-3d',
controller: 'bar-basic-3d',
requires: [
'Ext.chart.theme.Muted',
'LICApp.store.2FAData',
'Ext.grid.feature.Grouping'
],
width: 1300,
items: [{
xtype: 'combobox',
hideLabel: true,
store: {
type: '2fa-data'
},
valueField: 'zone',
displayField: 'zone',
typeAhead: true,
queryMode: 'local',
triggerAction: 'query',
emptyText: 'Select a Zone...',
selectOnFocus: true,
width: 200,
indent: true
},
{
xtype: 'cartesian',
flipXY: true,
reference: 'chart',
width: '100%',
height: 500,
insetPadding: '40 40 30 40',
innerPadding: '3 0 0 0',
theme: {
type: 'muted'
},
store: {
type: '2fa-data',
},
animation: {
easing: 'easeOut',
duration: 500
},
interactions: ['itemhighlight'],
axes: [{
type: 'numeric3d',
//position: 'bottom',
//fields: 'name',
//maximum: 150000,
//majorTickSteps: 10,
renderer: 'onAxisLabelRender',
//title: 'Number of Employees',
grid: {
odd: {
fillStyle: 'rgba(245, 245, 245, 1.0)'
},
even: {
fillStyle: 'rgba(255, 255, 255, 1.0)'
}
}
}, {
type: 'category3d',
position: 'left',
fields: 'name',
label: {
textAlign: 'right'
},
grid: true
}],
series: [{
type: 'bar3d',
xField: 'name',
yField: 'cnt',
style: {
minGapWidth: 10
},
highlight: true,
label: {
field: 'cnt',
display: 'insideEnd',
renderer: 'onSeriesLabelRender'
},
tooltip: {
trackMouse: true,
renderer: 'onSeriesTooltipRender'
}
}],
sprites: [{
type: 'text',
text: 'Implementation of 2FA Biometric - Progress Chart',
fontSize: 22,
width: 100,
height: 30,
x: 40, // the sprite x position
y: 20 // the sprite y position
}, {
type: 'text',
text: 'Source: 2FA Data Server',
fontSize: 10,
x: 12,
y: 490
}]
}],
tbar: [
'->',
{
text: 'Preview',
handler: 'onPreview'
}
],
listeners: {
select: 'onItemSelected'
}
});
BasicController.js
Ext.define('LICApp.view.charts.bar3d.BasicController', {
extend: 'Ext.app.ViewController',
alias: 'controller.bar-basic-3d',
onAxisLabelRender: function (axis, label, layoutContext) {
return Ext.util.Format.number(layoutContext.renderer(label) );
},
onSeriesLabelRender: function (v) {
return Ext.util.Format.number(v);
},
onSeriesTooltipRender: function (tooltip, record, item) {
var formatString = '0,000 ';
tooltip.setHtml(record.get('zone') + ': ' +
Ext.util.Format.number(record.get('cnt'), formatString));
},
onPreview: function () {
if (Ext.isIE8) {
Ext.Msg.alert('Unsupported Operation', 'This operation requires a newer version of Internet Explorer.');
return;
}
var chart = this.lookupReference('chart');
chart.preview();
},
onItemSelected: function (sender, record) {
var zone = combo.getValue();
},
});
答案 0 :(得分：0)
请将选择事件的听众更改为combobox，而不是面板。小组没有选择活动。
我为组合框选择/更改这两个事件创建了一个Sencha Fiddle演示。它将显示它是如何工作的。希望这能帮助您解决问题或实现您的功能。
add_shortcode('slider', 'team_slider_query');
function team_slider_query($atts, $content){
$args=array(
'posts_per_page' => 200,
'post_type' => 'teams',);
// The Query
$the_query = new WP_Query( $args );
// The Loop
if ( $the_query->have_posts() ) { ?>
<div class="owl-carousel owl-theme">
<?php
while ( $the_query->have_posts() ) {
$the_query->the_post();?>
<p><?php the_content(); ?></p>
<?php
$imghtml = get_the_post_thumbnail(get_the_ID(), 'full');
$url = get_post_meta(get_the_ID(), 'slider-url', true);
// get_template_part( 'template-parts/post/content', get_post_format() );
$output .= '<div class="item">
<img src="https://localhost/wordpress/wp-content/uploads/2017/10/Hydrangeas-300x225.jpg"/>
</div>
<div class="item">
<img src="https://localhost/wordpress/wp-content/uploads/2017/10/i3solutions-team-solutions-business-solutions-data-management-collaboration-application-development-300x129.jpg"/>
</div>';
}
$output .= '</div>';
/* Restore original Post Data */
wp_reset_postdata();
} else {
// no posts found
}
return $output;
}
答案 1 :(得分：0)
你应该将id听众附加到你的组合框：
select请注意ViewController中的{
xtype: 'combobox',
hideLabel: true,
store: {
type: '2fa-data'
},
valueField: 'zone',
displayField: 'zone',
typeAhead: true,
queryMode: 'local',
triggerAction: 'query',
emptyText: 'Select a Zone...',
selectOnFocus: true,
width: 200,
indent: true,
listeners: {
select: 'onItemSelected' //this one
}
}
方法：
onItemSelected答案 2 :(得分：0)
Sencha Ext JS MVVM体系结构的binding功能有助于编写声明性代码并避免在控制器中编写处理程序。由于它是迁移到6.2，因此可以采用这种方法来删除控制器中不必要的处理程序。 Here's这是一个小例子。
<强>更新 参考提供的示例，请阅读以下几点：
父类面板有一个视图模型，在层次结构中可用于组合框和图表组件。< / p>
视图模型具有data属性rec，它保存对组合框中所选记录的引用。组合框的selection属性绑定到此rec属性。这意味着从组合框中选择新记录的那一刻，View Model的rec属性会更新。
视图模型还有两个商店 - comboStore和chartStore
一个。 comboStore： - 包含完整的数据集。它与组合框绑定。
湾chartStore： - 是comboStore的子存储（子存储从父存储中获取其数据，但具有过滤和排序的附加功能，与父存储无关。）。它绑定到图表组件和rec.name属性上的过滤器（即更新时刻rec，触发过滤。）因此，从技术上讲，此商店始终只包含组合框中的选定记录。由于图表已绑定到此商店，因此它也会更新并显示所选记录的3dbar图表。
这是内联代码。请参阅评论了解更多信息。
Ext.define('MyPanel', {
extend: 'Ext.panel.Panel',
layout: 'vbox',
//Declare parent class view model
//This view model will be available down the hierarchy
viewModel: {
//Declare viewmodel's static data properties
data: {
//This references the selected record from combo box
rec: null,
},
//Declare stores for this viewmodel
stores: {
//Declare store for combo box containing complete dataset
comboStore: {
fields: ['name', 'apples', 'oranges'],
data: [{
name: 'Eric',
apples: 10,
oranges: 13
}, {
name: 'Mary',
apples: 7,
oranges: 20
}, {
name: 'John',
apples: 5,
oranges: 12
}, {
name: 'Bob',
apples: 2,
oranges: 30
}, {
name: 'Joe',
apples: 19,
oranges: 17
}, {
name: 'Macy',
apples: 13,
oranges: 4
}]
},
//Declare store for chart component
chartStore: {
//This is child store of 'ComboStore'. Its data source is 'comboStore'
source: '{comboStore}',
//This filters this child store to contain only the selected record from combo box
filters: [{
//This filters the store by 'name' property, which is the 'displayField' of combo box
property: 'name',
//This binding helps to filter by the selected record's 'name' property
//'rec' is the selecte record which is available in the view model
value: '{rec.name}'
}],
}
}
},
items: [{
xtype: 'mycombo',
bind: {
//This binding provides 'comboStore' data to the combobox
store: '{comboStore}',
//The selection property of combo box is published to the viewmodel
//and its reference is stored in the viewmodel data property 'rec'
selection: '{rec}'
}
}, {
xtype: 'mychart',
bind: {
//This binding provides 'chartStore' data to the chart component
//Since it is bound, the moment this store is updated/filtered, the chart view gets updated too
store: '{chartStore}'
}
}]
});