我最終延伸到Ext.tree.Column
,而不是正常的葉圖標它顯示縮略圖。
這裏是我的代碼:
Ext.define('Grafik.component.tree.Column2', {
extend: 'Ext.tree.Column',
alias: 'widget.treecolumn2',
thumbnailsServiceUrl:'',
cellTpl: [
'<tpl for="lines">',
'<img src="{parent.blankUrl}" class="{parent.childCls} {parent.elbowCls}-img ',
'{parent.elbowCls}-<tpl if=".">line<tpl else>empty</tpl>"/>',
'</tpl>',
'<img src="{blankUrl}" class="{childCls} {elbowCls}-img {elbowCls}',
'<tpl if="isLast">-end</tpl><tpl if="expandable">-plus {expanderCls}</tpl>"/>',
'<tpl if="checked !== null">',
'<input type="button" role="checkbox" <tpl if="checked">aria-checked="true" </tpl>',
'class="{childCls} {checkboxCls}<tpl if="checked"> {checkboxCls}-checked</tpl>"/>',
'</tpl>',
'<img src="{loginUrl}" class="{childCls} {baseIconCls} ',
'{baseIconCls}-<tpl if="leaf">leaf<tpl else>parent</tpl> {iconCls}"',
'<tpl if="icon">style="background-image:url({icon})"</tpl>/>',
'<tpl if="href">',
'<a href="{href}" target="{hrefTarget}" class="{textCls} {childCls}">{value}</a>',
'<tpl else>',
'<span class="{textCls} {childCls}">{value}</span>',
'</tpl>'
],
treeRenderer: function (value, metaData, record, rowIdx, colIdx, store, view) {
var me = this,
cls = record.get('cls'),
renderer = me.origRenderer,
data = record.data,
parent = record.parentNode,
rootVisible = view.rootVisible,
lines = [],
parentData;
if (cls) {
metaData.tdCls += ' ' + cls;
}
while (parent && (rootVisible || parent.data.depth > 0)) {
parentData = parent.data;
lines[rootVisible ? parentData.depth : parentData.depth - 1] =
parentData.isLast ? 0 : 1;
parent = parent.parentNode;
}
return me.getTpl('cellTpl').apply({
record: record,
baseIconCls: me.iconCls,
iconCls: data.iconCls,
icon: data.icon,
checkboxCls: me.checkboxCls,
checked: data.checked,
elbowCls: me.elbowCls,
expanderCls: me.expanderCls,
textCls: me.textCls,
leaf: data.leaf,
expandable: record.isExpandable(),
isLast: data.isLast,
blankUrl: Ext.BLANK_IMAGE_URL,
loginUrl: data.leaf ? me.thumbnailsServiceUrl + record.get('Login') : Ext.BLANK_IMAGE_URL,
href: data.href,
hrefTarget: data.hrefTarget,
lines: lines,
metaData: metaData,
// subclasses or overrides can implement a getChildCls() method, which can
// return an extra class to add to all of the cell's child elements (icon,
// expander, elbow, checkbox). This is used by the rtl override to add the
// "x-rtl" class to these elements.
childCls: me.getChildCls ? me.getChildCls() + ' ' : '',
value: renderer ? renderer.apply(me.origScope, arguments) : value
});
}
});
和使用情況是這樣的:
{
text: 'Users',
dataIndex: 'Name',
hideable: false,
width: 260,
xtype: 'treecolumn2',
sortable: true,
resizable: false,
thumbnailsServiceUrl: window.appUrl + 'api/Thumbnails/'
}
哪裏api/Thumbnails
是服務,需要登錄並返回圖像。
簡單的解決方案,希望它可以幫助別人:)
我也對這個類似的問題感到震驚。我不喜歡使用渲染來添加一些div內的跨度,不建議在文本元素內添加塊元素 – naren
@naren我通過創建顯示圖像而不是葉圖標的自定義樹列來解決我的問題。我會馬上發佈我的代碼:) – Misiu
感謝您發佈代碼。我的場景並不複雜,因爲我需要在圖標上註冊事件,當點擊圖標時,我不應該事件傳播。我覺得actioncolumn會更好地服務於我的目的。我發現這裏使用actioncolumn很好的寫法http://www.learnsomethings.com/2011/09/25/the-new-extjs4-xtype-actioncolumn-in-a-nutshell/ – naren