ueditor子表控件绑定事件的扩展优化

一、ueditor子表控件

如下图：

  编辑器中其html代码如下：

  <tr>
                    <td  rowspan="1" colspan="6">
                        <strong>产品信息</strong>
                    </td>
                </tr>
                <tr>
                    <td  rowspan="1" colspan="6">
                        <div tablename="cpxx" tabledesc="销售合同/订单评审表产品信息子表" type="subtable" name="editable-input" class="subtable" show="true" external="{&#39;tablename&#39;:&#39;cpxx&#39;,&#39;tablerows&#39;:&#39;5&#39;,&#39;tablememo&#39;:&#39;销售合同/订单评审表产品信息子表&#39;,&#39;inlinemodel&#39;:1,&#39;blockmodel&#39;:0,&#39;windowmodel&#39;:0,&#39;show&#39;:1}">
                            <table class="listTable" border="0" cellpadding="2" cellspacing="0">
                                <tbody>
                                    <tr class="toolBar">
                                        <td colspan="5">
                                            <a class="link add" href="javascript:;">添加</a>
                                        </td>
                                    </tr>
                                    <tr class="headRow">
                                        <th >
                                            产品型号
                                        </th>
                                        <th >
                                            产品料号
                                        </th>
                                        <th >
                                            数量
                                        </th>
                                        <th >
                                            单价
                                        </th>
                                        <th >
                                            总价
                                        </th>
                                    </tr>
                                    <tr class="listRow" formtype="edit">
                                        <td>
                                            <span name="editable-input"  class="textinput" external="{&#39;comment&#39;:&#39;产品型号&#39;,&#39;name&#39;:&#39;cpxh&#39;,&#39;hiddenSet&#39;:&#39;&#39;,&#39;dbType&#39;:{&#39;type&#39;:&#39;varchar&#39;,&#39;length&#39;:&#39;50&#39;},&#39;isRequired&#39;:1,&#39;isFlowVar&#39;:0,&#39;isDateString&#39;:0,&#39;valueFrom&#39;:{&#39;value&#39;:&#39;0&#39;,&#39;content&#39;:&#39;&#39;},&#39;width&#39;:&#39;&#39;,&#39;widthUnit&#39;:&#39;px&#39;,&#39;height&#39;:&#39;&#39;,&#39;heightUnit&#39;:&#39;px&#39;}"><input type="text"  /></span>
                                        </td>
                                        <td>
                                            <span name="editable-input"  class="textinput" external="{&#39;comment&#39;:&#39;产品料号&#39;,&#39;name&#39;:&#39;cplh&#39;,&#39;hiddenSet&#39;:&#39;&#39;,&#39;dbType&#39;:{&#39;type&#39;:&#39;varchar&#39;,&#39;length&#39;:&#39;50&#39;},&#39;isRequired&#39;:1,&#39;isFlowVar&#39;:0,&#39;isDateString&#39;:0,&#39;valueFrom&#39;:{&#39;value&#39;:&#39;0&#39;,&#39;content&#39;:&#39;&#39;},&#39;width&#39;:&#39;&#39;,&#39;widthUnit&#39;:&#39;px&#39;,&#39;height&#39;:&#39;&#39;,&#39;heightUnit&#39;:&#39;px&#39;}"><input type="text"  /></span>
                                        </td>
                                        <td>
                                            <span name="editable-input"  class="textinput" external="{&#39;comment&#39;:&#39;产品数量&#39;,&#39;name&#39;:&#39;cpsl&#39;,&#39;hiddenSet&#39;:&#39;&#39;,&#39;dbType&#39;:{&#39;type&#39;:&#39;number&#39;,&#39;intLen&#39;:&#39;14&#39;,&#39;decimalLen&#39;:&#39;0&#39;},&#39;isRequired&#39;:1,&#39;isFlowVar&#39;:0,&#39;valueFrom&#39;:{&#39;value&#39;:&#39;0&#39;,&#39;content&#39;:&#39;&#39;},&#39;width&#39;:&#39;&#39;,&#39;widthUnit&#39;:&#39;px&#39;,&#39;height&#39;:&#39;&#39;,&#39;heightUnit&#39;:&#39;px&#39;}"><input type="text"  /></span>
                                        </td>
                                        <td>
                                            <span name="editable-input"  class="textinput" external="{&#39;comment&#39;:&#39;产品单价&#39;,&#39;name&#39;:&#39;cpdj&#39;,&#39;hiddenSet&#39;:&#39;&#39;,&#39;dbType&#39;:{&#39;type&#39;:&#39;number&#39;,&#39;intLen&#39;:&#39;14&#39;,&#39;decimalLen&#39;:&#39;2&#39;},&#39;isRequired&#39;:1,&#39;isFlowVar&#39;:0,&#39;valueFrom&#39;:{&#39;value&#39;:&#39;0&#39;,&#39;content&#39;:&#39;&#39;},&#39;width&#39;:&#39;&#39;,&#39;widthUnit&#39;:&#39;px&#39;,&#39;height&#39;:&#39;&#39;,&#39;heightUnit&#39;:&#39;px&#39;}"><input type="text"  /></span>
                                        </td>
                                        <td >
                                            <span name="editable-input"  class="textinput" external="{&#39;comment&#39;:&#39;产品总价&#39;,&#39;name&#39;:&#39;cpzj&#39;,&#39;hiddenSet&#39;:&#39;&#39;,&#39;dbType&#39;:{&#39;type&#39;:&#39;number&#39;,&#39;intLen&#39;:&#39;14&#39;,&#39;decimalLen&#39;:&#39;2&#39;},&#39;isRequired&#39;:1,&#39;isFlowVar&#39;:0,&#39;valueFrom&#39;:{&#39;value&#39;:&#39;0&#39;,&#39;content&#39;:&#39;&#39;},&#39;width&#39;:&#39;&#39;,&#39;widthUnit&#39;:&#39;px&#39;,&#39;height&#39;:&#39;&#39;,&#39;heightUnit&#39;:&#39;px&#39;}"><input type="text"  /></span>
                                        </td>
                                    </tr>
                                </tbody>
                            </table>
                        </div><br />
                    </td>
                </tr>
                <tr>
                    <td  rowspan="1" colspan="4">
                        <br />
                    </td>
                    <td  rowspan="1" colspan="1" width="146">
                        合计金额
                    </td>
                    <td  rowspan="1" colspan="1" width="146">
                        <span name="editable-input"  class="textinput" external="{&#39;comment&#39;:&#39;合计金额&#39;,&#39;name&#39;:&#39;hjje&#39;,&#39;hiddenSet&#39;:&#39;&#39;,&#39;dbType&#39;:{&#39;type&#39;:&#39;number&#39;,&#39;intLen&#39;:&#39;14&#39;,&#39;decimalLen&#39;:&#39;2&#39;},&#39;isRequired&#39;:1,&#39;isList&#39;:0,&#39;isQuery&#39;:0,&#39;isFlowVar&#39;:0,&#39;valueFrom&#39;:{&#39;value&#39;:&#39;0&#39;,&#39;content&#39;:&#39;&#39;},&#39;width&#39;:&#39;&#39;,&#39;widthUnit&#39;:&#39;px&#39;,&#39;height&#39;:&#39;&#39;,&#39;heightUnit&#39;:&#39;px&#39;}"><input type="text"  /></span>
                    </td>
                </tr>

  示例中的子表最后一列为合计列，每一列其合计=单价*数量，金额总计=各行合计之和；

  页面效果展示及html代码如下

html

  js代码如下：

	function bindTableChange(){
		  $("input[name='s:cpxx:cpsl']," +
				"input[name='s:cpxx:cpdj']").bind('click change blur', function(){
					//计算金额事件
					calcSubTableMoney(this);
			});
		 
	}
	
	function calcSubTableMoney(self){
		  var blocktable = $(self).parent().parent().parent();
		    
		  var itdj = $.trim($("input[name='s:cpxx:cpdj']", $(blocktable)).val());//IT单价
		  var sl = $.trim($("input[name='s:cpxx:cpsl']", $(blocktable)).val());//数量
		  if($.isNumeric(itdj)&&$.isNumeric(sl)){
		    var dxhj=itdj*sl;
		    dxhj=parseFloat(dxhj).toFixed(2);
		     $("input[name='s:cpxx:cpzj']", $(blocktable)).val(dxhj);
		   sumHj();
		   }
		}

		//汇总合计
		function sumHj(){
		  var zhj=0;
		  var dxhjArray= document.getElementsByName("s:cpxx:cpzj");
		  for(var i=0;i<dxhjArray.length;i++){
		    if($.isNumeric(dxhjArray[i].value)){
		      zhj+= parseFloat(dxhjArray[i].value);
		    }
		  }
		  zhj = parseFloat(zhj).toFixed(2);
		  $("input[name='m:"+ formDefineName +":hjje']").val(zhj);
		}

1. 为单价和数量两个input均添加chang\blur\click事件，事件触发后会更新合计和总计值；

2. $后有两个参数，第一个为操作对象，第二个定义操作对象所在的范围；由html可以看出单价或数量的parent.parent.parent即为tr，这样就限定了按行计算；

3. parseFloat和toFixed为js的两个函数，分别为转换为float和四舍五入小数点后两位；

4. isNumeric和trim为jQuery的两个函数，分别为判断是否为数字和去掉空格；

二、扩展和优化

  由于子表控件支持点击添加行，而在点击添加后由于新增的input并未注册事件，故无法使用算数计算合计和总计。我们采用一种为子表”添加“按钮添加exefunc，为新增行input增加注册事件，代码如下

function bindExtFunction(){
	$(".toolBar").attr("extfunc", "toolbarExtFunction");
}

/** 工具条扩展方法 */
function toolbarExtFunction(){
	//子表序列号
  //calcTableSerino();
	//子表下拉框、输入框事件绑定
	bindTableChange();
}

   toolBar为添加按钮的父对象，根据JQuery的传播机制，事件的注册会以捕获机制由父及子，再以冒泡机制以子及父，所以点击添加按钮后，会先运行父对象的相应函数，添加按钮后，会再次运行父对象从而为新增行注册事件。