jQuery implements the merge function of HTML table cells

jQuery implements the merge function of HTML table cells_jquery

WBOY

Release： 2016-05-16 15:06:26

Original

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The example in this article describes how jQuery implements HTML table cell merging. Share it with everyone for your reference, the details are as follows:

The screenshot of the running effect is as follows:

Before merge:

After merge:

The specific code is as follows:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script src="jquery-1.4.1.min.js" type="text/javascript"></script>
<script type="text/javascript">
/**
* desc : 合并指定表格（表格id为table_id）指定列（列数为table_colnum）的相同文本的相邻单元格 
* @table_id 表格id : 为需要进行合并单元格的表格的id。如在HTMl中指定表格 id="data" ，此参数应为 #data 
* @table_colnum : 为需要合并单元格的所在列.参考jQuery中nth-child的参数.若为数字，从最左边第一列为1开始算起;"even" 表示偶数列;"odd" 表示奇数列; "3n+1" 表示的列数为1、4、7、...... 
* @table_minrow &#63; : 可选的,表示要合并列的行数最小的列,省略表示从第0行开始 (闭区间) 
* @table_maxrow &#63; : 可选的,表示要合并列的行数最大的列,省略表示最大行列数为表格最后一行 (开区间) 
*/
function table_rowspan(table_id, table_colnum) {
if (table_colnum == "even") {
table_colnum = "2n";
}
else if (table_colnum == "odd") {
table_colnum = "2n+1";
}
else {
table_colnum = "" + table_colnum;
}
var cols = [];
var all_row_num = $(table_id + " tr td:nth-child(1)").length;
var all_col_num = $(table_id + " tr:nth-child(1)").children().length;
if (table_colnum.indexOf("n") == -1) {
cols[0] = table_colnum;
}
else {
var n = 0;
var a = table_colnum.substring(0, table_colnum.indexOf("n"));
var b = table_colnum.substring(table_colnum.indexOf("n") + 1);
//alert("a="+a+"b="+(b==true));
a = a &#63; parseInt(a) : 1;
b = b &#63; parseInt(b) : 0;
//alert(b);
while (a * n + b <= all_col_num) {
cols[n] = a * n + b;
n++;
}
}
var table_minrow = arguments[2] &#63; arguments[2] : 0;
var table_maxrow = arguments[3] &#63; arguments[3] : all_row_num + 1;
var table_firsttd = "";
var table_currenttd = "";
var table_SpanNum = 0;
for (var j = 0; j < cols.length; j++) {
$(table_id + " tr td:nth-child(" + cols[j] + ")").slice(table_minrow, table_maxrow).each(function (i) {
var table_col_obj = $(this);
if (table_col_obj.html() != " ") {
if (i == 0) {
table_firsttd = $(this);
table_SpanNum = 1;
}
else {
table_currenttd = $(this);
if (table_firsttd.text() == table_currenttd.text()) {
table_SpanNum++;
table_currenttd.hide(); //remove(); 
table_firsttd.attr("rowSpan", table_SpanNum);
} else {
table_firsttd = $(this);
table_SpanNum = 1;
}
}
}
});
}
}
/**
* desc : 合并指定表格（表格id为table_id）指定行（行数为table_rownum）的相同文本的相邻单元格 
* @table_id 表格id : 为需要进行合并单元格的表格的id。如在HTMl中指定表格 id="data" ，此参数应为 #data 
* @table_rownum : 为需要合并单元格的所在行.参考jQuery中nth-child的参数.若为数字，从最左边第一列为1开始算起;"even" 表示偶数行;"odd" 表示奇数行; "3n+1" 表示的行数为1、4、7、...... 
* @table_mincolnum &#63; : 可选的,表示要合并行中的最小列,省略表示从第0列开始(闭区间)
* @table_maxcolnum &#63; : 可选的,表示要合并行中的最大列,省略表示表格的最大列数(开区间) 
*/
function table_colspan(table_id, table_rownum) {
//if(table_maxcolnum == void 0){table_maxcolnum=0;}
var table_mincolnum = arguments[2] &#63; arguments[2] : 0;
var table_maxcolnum;
var table_firsttd = "";
var table_currenttd = "";
var table_SpanNum = 0;
$(table_id + " tr:nth-child(" + table_rownum + ")").each(function (i) {
table_row_obj = $(this).children();
table_maxcolnum = arguments[3] &#63; arguments[3] : table_row_obj.length;
table_row_obj.slice(table_mincolnum, table_maxcolnum).each(function (i) {
if (i == 0) {
table_firsttd = $(this);
table_SpanNum = 1;
} else if ((table_maxcolnum > 0) && (i > table_maxcolnum)) {
return "";
} else {
table_currenttd = $(this);
if (table_firsttd.text() == table_currenttd.text()) {
table_SpanNum++;
if (table_currenttd.is(":visible")) {
table_firsttd.width(parseInt(table_firsttd.width()) + parseInt(table_currenttd.width()));
}
table_currenttd.hide(); //remove(); 
table_firsttd.attr("colSpan", table_SpanNum);
} else {
table_firsttd = $(this);
table_SpanNum = 1;
}
}
});
});
}
</script>
</head>
<body>
<table width="400" border="1" id="table1">
<tr>
<td align="center">
a
</td>
<td>
for
</td>
<td>
for
</td>
<td>
100
</td>
<td>
200
</td>
<td>
200
</td>
</tr>
<tr>
<td>
a
</td>
<td>
for
</td>
<td>
for
</td>
<td>
150
</td>
<td>
230
</td>
<td>
200
</td>
</tr>
<tr>
<td>
dd
</td>
<td>
if
</td>
<td>
for
</td>
<td>
100
</td>
<td>
200
</td>
<td>
200
</td>
</tr>
<tr>
<td>
aa
</td>
<td>
if
</td>
<td>
for
</td>
<td>
300
</td>
<td>
240
</td>
<td>
200
</td>
</tr>
<tr>
<td>
e
</td>
<td>
if
</td>
<td>
for
</td>
<td>
320
</td>
<td>
230
</td>
<td>
200
</td>
</tr>
</table>
<input type="button" value="合并表格2" onClick="table_colspan('#table1',1)"> 
<input type="button" value="合并表格1" onClick="table_rowspan('#table1',1)"> 
</body>
</html>

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