通过Javascript在html表格单元格中插入选择框
我试图使用table用Javascript生成一个网格类型的工作表,但是selectbox并没有显示在所有单元格中,而是只显示在最后一个单元格中。为什么? 这是我的工作代码:通过Javascript在html表格单元格中插入选择框,javascript,html,dom,Javascript,Html,Dom,我试图使用table用Javascript生成一个网格类型的工作表,但是selectbox并没有显示在所有单元格中,而是只显示在最后一个单元格中。为什么? 这是我的工作代码: /** * @param {int} The month number, 0 based * @param {int} The year, not zero based, required to account for leap years * @return {Date[]} List w
/**
* @param {int} The month number, 0 based
* @param {int} The year, not zero based, required to account for leap years
* @return {Date[]} List with date objects for each day of the month
*/
function getDaysInMonth(month, year) {
// Since no month has fewer than 28 days
var date = new Date(year, month, 1);
var days = [];
console.log('month', month, 'date.getMonth()', date.getMonth())
while (date.getMonth() === month) {
days.push(new Date(date));
date.setDate(date.getDate() + 1);
}
return days;
}
//console.log(getDaysInMonth(4, 2012));
var days = getDaysInMonth(0,2016);
var feb = getDaysInMonth(1,2016);
var mar = getDaysInMonth(2,2016);
var apr = getDaysInMonth(3,2016);
var may = getDaysInMonth(4,2016);
var jun = getDaysInMonth(5,2016);
var jul = getDaysInMonth(6,2016);
var aug = getDaysInMonth(7,2016);
var sep = getDaysInMonth(8,2016);
var oct = getDaysInMonth(9,2016);
var nov = getDaysInMonth(10,2016);
var dec = getDaysInMonth(11,2016);
var str="";
var feb_str="";
var mar_str="";
var apr_str="";
var may_str="";
var jun_str="";
var jul_str="";
var aug_str="";
var sep_str="";
var oct_str="";
var nov_str="";
var dec_str="";
//console.log(days.length+"ffffffffffffffff");
for( i=0;i<days.length;i++){
str = str+days[i];
}
for( i=0;i<feb.length;i++){
feb_str = feb_str+feb[i];
}
for( i=0;i<mar.length;i++){
mar_str = mar_str+mar[i];
}
for( i=0;i<apr.length;i++){
apr_str = apr_str+apr[i];
}
for( i=0;i<may.length;i++){
may_str = may_str+may[i];
}
for( i=0;i<jun.length;i++){
jun_str = jun_str+jun[i];
}
for( i=0;i<jul.length;i++){
jul_str = jul_str+jul[i];
}
for( i=0;i<aug.length;i++){
aug_str = aug_str+aug[i];
}
for( i=0;i<sep.length;i++){
sep_str = sep_str+sep[i];
}
for( i=0;i<oct.length;i++){
oct_str = oct_str+oct[i];
}
for( i=0;i<nov.length;i++){
nov_str = nov_str+nov[i];
}
for( i=0;i<dec.length;i++){
dec_str = dec_str+dec[i];
}
/*
Tue May 01 2012
*/
//console.log("string is"+str+"....end");
var myRe = /\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/;
/*
var res = str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var feb_res = feb_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var mar_res = mar_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var apr_res = apr_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var may_res = may_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var jun_res = jun_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var jul_res = jul_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var aug_res = aug_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var sep_res = sep_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var oct_res = oct_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var nov_res = nov_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var dec_res = dec_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
*/
var res = str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var feb_res = feb_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var mar_res = mar_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var apr_res = apr_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var may_res = may_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var jun_res = jun_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var jul_res = jul_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var aug_res = aug_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var sep_res = sep_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var oct_res = oct_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var nov_res = nov_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
var dec_res = dec_str.match(/\w\w\w\s\w\w\w\s\d\d\s\d\d\d\d/g);
console.log(res);
console.log(feb_res);
console.log(mar_res);
console.log(apr_res);
console.log(may_res);
console.log(jun_res);
console.log(jul_res);
console.log(aug_res);
console.log(sep_res);
console.log(oct_res);
console.log(nov_res);
console.log(dec_res);
**function GenerateTable(param_days) {
//Create a HTML Table element.
var table = document.createElement("TABLE");
table.border = "1";
//Get the count of columns.
var columnCount = param_days.length;
console.log("+++++++++"+param_days.length+"++++++++++");
//Add the header row.
var row = table.insertRow(-1);
for (var i = 0; i < columnCount; i++) {
var headerCell = document.createElement("TH");
headerCell.innerHTML = param_days[i];
row.appendChild(headerCell);
}
row = table.insertRow(-1);
//Create array of options to be added
var array = ["Volvo","Saab","Mercades","Audi"];
if( param_days == feb_res) { var dvTable = document.getElementById("febdvTable");}
else if(param_days == mar_res){ var dvTable = document.getElementById("mardvTable");}
else if(param_days == apr_res){ var dvTable = document.getElementById("aprdvTable");}
else if(param_days == may_res){ var dvTable = document.getElementById("maydvTable");}
else if(param_days == jun_res){ var dvTable = document.getElementById("jundvTable");}
else if(param_days == jul_res){ var dvTable = document.getElementById("juldvTable");}
else if(param_days == aug_res){ var dvTable = document.getElementById("augdvTable");}
else if(param_days == sep_res){ var dvTable = document.getElementById("sepdvTable");}
else if(param_days == oct_res){ var dvTable = document.getElementById("octdvTable");}
else if(param_days == nov_res){ var dvTable = document.getElementById("novdvTable");}
else if(param_days == dec_res){ var dvTable = document.getElementById("decdvTable");}
else { var dvTable = document.getElementById("dvTable"); }
//dvTable.innerHTML = "";
dvTable.appendChild(table);
//Create and append select list
var selectList = document.createElement("select");
selectList.setAttribute("id", "mySelect");
//dvTable.appendChild(selectList);
for (var i = 0; i < array.length; i++) {
var option = document.createElement("option");
option.setAttribute("value", array[i]);
option.text = array[i];
selectList.appendChild(option);
}
//Add the data rows.
for (var i = 0; i < param_days.length; i++) {
var cell = row.insertCell();
cell.appendChild(selectList);
}
}
GenerateTable(res);
GenerateTable(feb_res);
GenerateTable(mar_res);
GenerateTable(apr_res);
GenerateTable(may_res);
GenerateTable(jun_res);
GenerateTable(jul_res);
GenerateTable(aug_res);
GenerateTable(sep_res);
GenerateTable(oct_res);
GenerateTable(nov_res);
GenerateTable(dec_res);
/**
*@param{int}月数,以0为基础
*@param{int}需要说明闰年的年份,不是以零为基础的
*@return{Date[]}列表,其中包含每月每一天的日期对象
*/
函数getDaysInMonth(月,年){
//因为每个月都不少于28天
var日期=新日期(年、月、1);
风险值天数=[];
log('month',month',date.getMonth()',date.getMonth())
while(date.getMonth()==月){
推送(新日期(日期));
date.setDate(date.getDate()+1);
}
返程天数;
}
//console.log(getDaysInMonth(2012年4月));
var天数=getDaysInMonth(02016);
var feb=getDaysInMonth(12016);
var mar=getDaysInMonth(22016);
var apr=getDaysInMonth(32016);
var may=getDaysInMonth(42016);
var jun=getDaysInMonth(52016);
var jul=getDaysInMonth(62016);
var aug=getDaysInMonth(72016);
var sep=每月的getDaysInMonth(82016);
var oct=getDaysInMonth(92016);
var nov=getDaysInMonth(102016);
var dec=getDaysInMonth(112016);
var str=“”;
var feb_str=“”;
var mar_str=“”;
var apr_str=“”;
var may_str=“”;
var jun_str=“”;
var jul_str=“”;
var aug_str=“”;
var sep_str=“”;
var oct_str=“”;
var nov_str=“”;
var dec_str=“”;
//console.log(days.length+“ffffffffffffffff”);
对于(i=0;i我没有在代码中准确地找到错误,但是下面的部分希望能有所帮助
var getDays = function getDays( month, year ) {
var days = [],
limit = new Date(year, month, 0).getDate(),
i;
for (i = 1; i <= limit; i += 1) {
days.push(new Date(year, (month - 1), i).toDateString());
}
return days;
},
getYearInDays = function getYearInDays( year ) {
var years = [],
i;
for (i = 1; i <= 12; i += 1) {
years.push(getDays(i, year));
}
return years;
},
generateTable = function generateTable( days, monthName ) {
var tag = function tag(tagName) {
return document.createElement(tagName);
},
table = tag('table'),
row,
cell,
select = tag('select'),
option;
// header
row = tag('tr');
cell = tag('th');
cell.textContent = monthName;
row.appendChild(cell);
table.appendChild(row);
row = tag('tr');
cell = tag('td');
// select
days.forEach(function (day) {
option = tag('option');
option.setAttribute('value', day);
option.textContent = day;
select.appendChild(option);
});
cell.appendChild(select);
row.appendChild(cell);
table.appendChild(row);
return table;
},
monthNames = ['January', 'february', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
dayAry = getYearInDays('2016'),
fragment = document.createDocumentFragment();
dayAry.forEach(function (days, index) {
var table = generateTable(days, monthNames[index]);
fragment.appendChild(table);
});
document.querySelector('#dayTables').appendChild(fragment);
var getDays=函数getDays(月、年){
var天数=[],
限制=新日期(年、月、0)。getDate(),
我
对于(i=1;i我认为您正在尝试在循环中附加一行代码的相同DOM元素
cell.appendChild(selectList);
我建议在循环中创建selectList
for (var i = 0; i < param_days.length; i++) {
var selectList = document.createElement("select");
selectList.setAttribute("id", "mySelect"+i);
for (var j = 0; j < array.length; j++) {
var option = document.createElement("option");
option.setAttribute("value", array[j]);
option.text = array[j];
selectList.appendChild(option);
}
var cell = row.insertCell();
cell.appendChild(selectList);
}
for(变量i=0;i
正则表达式不适用于我。它应该做什么?@Shilly它只会获取拆分日期并将其放入格式中。正则表达式执行后的示例:0:“2016年12月1日星期四”1:“2016年12月2日星期五”2:“2016年12月3日星期六”3:“2016年12月4日太阳”4:“2016年12月5日星期一”5:“2016年12月6日星期三”7:“2016年12月8:“2016年12月9日星期五”9:“2016年12月10日星期六”10:“2016年12月11日星期日”11:“2016年12月12日星期一”“我现在无法更改完整的代码。很不幸,答案必须与代码Postedaw关联。我无法让您的正则表达式正常工作,所以请检查并检查您的月数。我建议至少使用该部分来生成日期名称。toDateSting()比整个正则表达式更简单。”。
cell.appendChild(selectList);
for (var i = 0; i < param_days.length; i++) {
var selectList = document.createElement("select");
selectList.setAttribute("id", "mySelect"+i);
for (var j = 0; j < array.length; j++) {
var option = document.createElement("option");
option.setAttribute("value", array[j]);
option.text = array[j];
selectList.appendChild(option);
}
var cell = row.insertCell();
cell.appendChild(selectList);
}