用Javascript进行简单的Table点击排序
用Javascript进行简单的`Table点击排序
本文实例讲述了JavaScript实现表格点击排序的方法。分享给大家供大家参考。具体分析如下：
这里实现基于JS的表格点击排序效果，可以根据表格内的数据大小自动按顺序排列，股票网站常会见到这种功能。
TABLE { BORDER-RIGHT: #000000 2px solid; BORDER-TOP: #000000 2px solid; BORDER-LEFT: #000000 2px solid; BORDER-BOTTOM: #000000 2px solid; border-spacing: 0px; cell-spacing: 0px}TD { PADDING-RIGHT: 0.5em; PADDING-LEFT: 0.5em; FONT-SIZE: 10pt; PADDING-BOTTOM: 2px; PADDING-TOP: 2px; FONT-FAMILY: Arial, Helvetica, sans-serif; WHITE-SPACE: nowrap}TH { PADDING-RIGHT: 0.5em; PADDING-LEFT: 0.5em; FONT-SIZE: 10pt; PADDING-BOTTOM: 2px; PADDING-TOP: 2px; FONT-FAMILY: Arial, Helvetica, sans-serif; WHITE-SPACE: nowrap}TD.numeric { TEXT-ALIGN: right}TH { BACKGROUND-COLOR: #c0c0c0}TH.mainHeader { COLOR: #ffffff; BACKGROUND-COLOR: #808080; TEXT-ALIGN: left}TH A { COLOR: #000080; TEXT-DECORATION: none}TH A:visited { COLOR: #000080}TH A:active { COLOR: #800000; TEXT-DECORATION: underline}TH A:hover { COLOR: #800000; TEXT-DECORATION: underline}TR.alternateRow { BACKGROUND-COLOR: #e0e0e0}TD.sortedColumn { BACKGROUND-COLOR: #f0f0f0}TH.sortedColumn { BACKGROUND-COLOR: #b0b0b0}TR.alternateRow TD.sortedColumn { BACKGROUND-COLOR: #d0d0d0}
function sortTable(id, col, rev) { var tblEl = document.getElementById(id); if (tblEl.reverseSort == null) { tblEl.reverseSort = new Array(); tblEl.lastColumn = 1; } if (tblEl.reverseSort[col] == null) tblEl.reverseSort[col] = rev; if (col == tblEl.lastColumn) tblEl.reverseSort[col] = !tblEl.reverseSort[col]; tblEl.lastColumn = col; var oldDsply = tblEl.style.display; tblEl.style.display = "none"; var tmpEl; var i, j; var minVal, minIdx; var testVal; var cmp; for (i = 0; i < tblEl.rows.length - 1; i++) { minIdx = i; minVal = getTextValue(tblEl.rows[i].cells[col]); for (j = i + 1; j < tblEl.rows.length; j++) { testVal = getTextValue(tblEl.rows[j].cells[col]); cmp = compareValues(minVal, testVal); if (tblEl.reverseSort[col]) cmp = -cmp; if (cmp == 0 && col != 1) cmp = compareValues(getTextValue(tblEl.rows[minIdx].cells[1]), getTextValue(tblEl.rows[j].cells[1])); if (cmp >0) { minIdx = j; minVal = testVal; } } if (minIdx > i) { tmpEl = tblEl.removeChild(tblEl.rows[minIdx]); tblEl.Before(tmpEl, tblEl.rows[i]); } } makePretty(tblEl, col); setRanks(tblEl, col, rev); tblEl.style.display = oldDsply; return false;}if (document.ELEMENT_NODE == null) { document.ELEMENT_NODE = 1; document.TEXT_NODE = 3;}function getTextValue(el) { var i; var s; s = ""; for (i = 0; i < el.childNodes.length; i++) if (el.childNodes[i].nodeType == document.TEXT_NODE) s += el.childNodes[i].nodeValue; else if (el.childNodes[i].nodeType == document.ELEMENT_NODE && el.childNodes[i].tagName == "BR") s += " "; else // Use recursion to get text within sub-elements. s += getTextValue(el.childNodes[i]); return normalizeString(s);}function compareValues(v1, v2) { var f1, f2; f1 = parseFloat(v1); f2 = parseFloat(v2); if (!isNaN(f1) && !isNaN(f2)) { v1 = f1; v2 = f2; } // Compare the two values. if (v1 == v2) return 0; if (v1 > v2) return 1 return -1;}var whtSpEnds = new RegExp("^s*|s*$", "g");var whtSpMult = new RegExp("ss+", "g");function normalizeString(s) { s = s.replace(whtSpMult, " "); // Collapse any multiple whites space. s = s.replace(whtSpEnds, ""); // Remove leading or trailing white space. return s;}var rowClsNm = "alternateRow";var colClsNm = "sortedColumn";var rowTest = new RegExp(rowClsNm, "gi");var colTest = new RegExp(colClsNm, "gi");function makePretty(tblEl, col) { var i, j; var rowEl, cellEl; for (i = 0; i < tblEl.rows.length; i++) { rowEl = tblEl.rows[i]; rowEl.className = rowEl.className.replace(rowTest, ""); if (i % 2 != 0) rowEl.className += " " + rowClsNm; rowEl.className = normalizeString(rowEl.className); for (j = 2; j < tblEl.rows[i].cells.length; j++) { cellEl = rowEl.cells[j]; cellEl.className = cellEl.className.replace(colTest, ""); if (j == col) cellEl.className += " " + colClsNm; cellEl.className = normalizeString(cellEl.className); } } var el = tblEl.parentNode.tHead; rowEl = el.rows[el.rows.length - 1]; for (i = 2; i < rowEl.cells.length; i++) { cellEl = rowEl.cells[i]; cellEl.className = cellEl.className.replace(colTest, ""); if (i == col) cellEl.className += " " + colClsNm; cellEl.className = normalizeString(cellEl.className); }}function setRanks(tblEl, col, rev) { var i = 0; var incr = 1; if (tblEl.reverseSort[col]) rev = !rev; if (rev) { incr = -1; i = tblEl.rows.length - 1; } var count = 1; var rank = count; var curVal; var lastVal = null; while (col > 1 && i >= 0 && i < tblEl.rows.length) { curVal = getTextValue(tblEl.rows[i].cells[col]); if (lastVal != null && compareValues(curVal, lastVal) != 0) rank = count; tblEl.rows[i].rank = rank; lastVal = curVal; count++; i += incr; } var rowEl, cellEl; var lastRank = 0; for (i = 0; i < tblEl.rows.length; i++) { rowEl = tblEl.rows[i]; cellEl = rowEl.cells[0]; while (cellEl.lastChild != null) cellEl.removeChild(cellEl.lastChild); if (col > 1 && rowEl.rank != lastRank) { cellEl.appendChild(document.createTextNode(rowEl.rank)); lastRank = rowEl.rank; } }}
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