中文字幕一区二区人妻电影,亚洲av无码一区二区乱子伦as ,亚洲精品无码永久在线观看,亚洲成aⅴ人片久青草影院按摩,亚洲黑人巨大videos

jEasyUI 列運(yùn)算

在本教程中,您將學(xué)習(xí)如何在可編輯的數(shù)據(jù)網(wǎng)格(datagrid)中包含一個運(yùn)算的列。一個運(yùn)算列通常包含一些從一個或多個其他列運(yùn)算的值。

首先,創(chuàng)建一個可編輯的數(shù)據(jù)網(wǎng)格(datagrid)。這里我們創(chuàng)建了一些可編輯列,'listprice'、'amount' 和 'unitcost' 列定義為 numberbox 編輯類型。運(yùn)算列是 'unitcost' 字段,將是 listprice 乘以 amount 列的結(jié)果。

????<table id="tt" style="width:600px;height:auto"
????????????title="Editable DataGrid with Calculated Column" iconCls="icon-edit" singleSelect="true"
????????????idField="itemid" url="data/datagrid_data.json">
????????<thead>
????????????<tr>
????????????????<th field="itemid" width="80">Item ID</th>
????????????????<th field="listprice" width="80" align="right" editor="{type:'numberbox',options:{precision:1}}">List Price</th>
????????????????<th field="amount" width="80" align="right" editor="{type:'numberbox',options:{precision:0}}">Amount</th>
????????????????<th field="unitcost" width="80" align="right" editor="numberbox">Unit Cost</th>
????????????????<th field="attr1" width="150" editor="text">Attribute</th>
????????????????<th field="status" width="60" align="center" editor="{type:'checkbox',options:{on:'P',off:''}}">Status</th>
????????????</tr>
????????</thead>
????</table>

當(dāng)用戶點(diǎn)擊一行的時候,我們開始一個編輯動作。

????var lastIndex;
????$('#tt').datagrid({
????????onClickRow:function(rowIndex){
????????????if (lastIndex != rowIndex){
????????????????$('#tt').datagrid('endEdit', lastIndex);
????????????????$('#tt').datagrid('beginEdit', rowIndex);
????????????????setEditing(rowIndex);
????????????}
????????????lastIndex = rowIndex;
????????}
????});

為了在一些列之間創(chuàng)建運(yùn)算關(guān)系,我們應(yīng)該得到當(dāng)前的 editors,并綁定一些事件到它們上面。

????function setEditing(rowIndex){
????????var editors = $('#tt').datagrid('getEditors', rowIndex);
????????var priceEditor = editors[0];
????????var amountEditor = editors[1];
????????var costEditor = editors[2];
????????priceEditor.target.bind('change', function(){
????????????calculate();
????????});
????????amountEditor.target.bind('change', function(){
????????????calculate();
????????});
????????function calculate(){
????????????var cost = priceEditor.target.val() * amountEditor.target.val();
????????????$(costEditor.target).numberbox('setValue',cost);
????????}
????}