动态添加修改删除html表格内容_html/css_WEB-ITnose-html教程-PHP中文网

动态添加修改删除html表格内容_html/css_WEB-ITnose

WBOY

发布： 2016-06-24 11:41:14

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1.需求

需要实现收银台上添加修改删除商品信息时顾显可以实时看到其变化

2.解决

收银台和顾显通过tcp传输进行数据通信,顾显通过操作html中的表格进行数据添加修改和删除操作

3.代码

mytest.html

<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Dynamic Table</title><script type="text/javascript" src="js/dynamic_table.js"> </script></head><body><table><tr><th>名称</th><th>颜色</th><th>尺寸</th><th>单价</th><th>折扣</th><th>数量</th><th>金额</th></tr><tbody id="goods"></tbody><tr><td><input type="button" value="add" onClick="addRow('多彩1234', '红色', 'XL', '1000.00', '1.00', '1', '1000.00')" /></td><td><input type="button" value="del" onClick="removeRow('goods', '0')"/></td><td><input type="button" value="modify" onClick="modifyRow('goods', '0', '0', '张小宝')" /></td><td><input type="button" value="clear" onClick="clearRows('goods')"/></td></tr></table></body></html>

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dynamic_table.js

onerror=handleErrvar txt=""function handleErr(msg,url,l) {    txt="本页中存在错误。\n\n"    txt+="错误：" + msg + "\n"    txt+="URL: " + url + "\n"    txt+="行：" + l + "\n\n"    txt+="点击“确定”继续。\n\n"    alert(txt)    return true}function addRow(name, color, size, unit, discount, count, sum) {    var bodyObj=document.getElementById("goods");    if(bodyObj==null)     {        alert("Body of Table not Exist!");        return;    }    var rowCount = bodyObj.rows.length;    //var cellCount = myarray.length;    var newRow = bodyObj.insertRow(rowCount++);    newRow.insertCell(0).innerHTML=name;    newRow.insertCell(1).innerHTML=color;    newRow.insertCell(2).innerHTML=size;    newRow.insertCell(3).innerHTML=unit;    newRow.insertCell(4).innerHTML=discount;    newRow.insertCell(5).innerHTML=count;    newRow.insertCell(6).innerHTML=sum;}function removeRow(tbodyID, row) {    var bodyObj=document.getElementById(tbodyID);    if(bodyObj==null)     {        alert("Body of Table not Exist!");        return;    }    var nrow = Number(row);    if (nrow <= bodyObj.rows.length)        bodyObj.deleteRow(nrow);    else        alert("nrow is less.");}function modifyRow(tbodyID, row, col, newvalue) {    var nrow = Number(row);    var ncol = Number(col);    var bodyObj=document.getElementById(tbodyID);    if(bodyObj==null)     {        alert("Body of Table not Exist!");        return;    }    try    {        //var tableObj = bodyObj.parentNode;        if (nrow < bodyObj.rows.length && ncol < bodyObj.getElementsByTagName('tr')[nrow].getElementsByTagName('td').length)        {            //这个在ie下可以 在google下不行            //bodyObj.rows(nrow).cells(ncol).innerHTML = newvalue;            //bodyObj.rows[nrow].childNodes[ncol].innerHTML = newvalue;            //这个在ie和google下都可以            document.getElementById(tbodyID).getElementsByTagName('tr')[nrow].getElementsByTagName('td')[ncol].innerHTML = newvalue;        }        else            alert("empty.");    }    catch (err)    {        alert(err.description);    }}function clearRows(tbodyID) {    var bodyObj=document.getElementById(tbodyID);    if(bodyObj==null)     {        alert("Body of Table not Exist!");        return;    }    for (var i = 0; i < bodyObj.rows.length; )        bodyObj.deleteRow(i);}

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