[英]Ext-JS GridPanel Dynamic Height Based on Row Count
我在使用Ext-JS GridPanel時遇到了一個難題:用於加載其存儲的數據是動態的,因此我事先不知道網格上需要顯示多少行。
因此,我對網格的高度感到困難:我嘗試將autoHeight設置為true,但是網格將僅顯示第一行,而隱藏其余行; 當我顯式設置其高度時,如果行數未填充高度指定的空間,則在網格上會出現空白。
理想情況下,網格應垂直擴展/縮小以顯示其所有行。 有什么方法可以根據網格將包含的行數來使網格的高度動態化嗎?
我可以等待網格渲染,獲取行數,並據此重新計算網格的高度,但這似乎很麻煩,我正在尋找更清潔的東西。
這是我的代碼供參考:
var store = new Ext.data.ArrayStore({fields:[{name: 'sign_up_date'}, {name: 'business_name'}, {name: 'owner_name'}, {name: 'status'}]});
// buildResultsArray is a method that returns arrays of varying lengths based on some business logic. The arrays can contain no elements or up to 15
store.loadData(buildResultsArray());
var resultsGrid = new Ext.grid.GridPanel({
store: store,
columns: [
{id: "sign_up_date", header: "Sign Up Date", dataIndex: "sign_up_date", width: 70},
{id: "business_name", header: "Business Name", dataIndex: "business_name", width: 100},
{id: "owner_name",header: "Owner Name", dataIndex: "owner_name", width: 100},
{id: "status", header: "Sign Up Status", dataIndex: "status", width: 70}
],
stripeRows: true,
columnLines: true,
enableColumnHide: false,
enableColumnMove: false,
enableHdMenu: false,
id: "results_grid",
renderTo: "results_grid_div",
//height: 300,
autoHeight: true,
selModel: new Ext.grid.RowSelectionModel({singleSelect: false})
});
謝謝您的幫助。
在ExtJS 3中,它不是開箱即用的,但是通過擴展GridView可以很容易地實現:
AutoGridView = Ext.extend(
Ext.grid.GridView,
{
fixOverflow: function() {
if (this.grid.autoHeight === true || this.autoHeight === true){
Ext.get(this.innerHd).setStyle("float", "none");
this.scroller.setStyle("overflow-x", this.scroller.getWidth() < this.mainBody.getWidth() ? "scroll" : "auto");
}
},
layout: function () {
AutoGridView.superclass.layout.call(this);
this.fixOverflow();
},
render: function(){
AutoGridView.superclass.render.apply(this, arguments);
this.scroller.on('resize', this.fixOverflow, this);
if (this.grid.autoHeight === true || this.autoHeight === true){
this.grid.getStore().on('datachanged', function(){
if (this.ownerCt) { this.ownerCt.doLayout(); }
}, this.grid, { delay: 10 });
}
}
}
);
用法:
new Ext.grid.GridPanel({
autoHeight: true,
view: new AutoGridView()
});
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