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<head> <title>Table Sorting (3/4) (WebFX)－www.azhong.com</title> <STYLE TYPE="text/css"> tr {background: window;} td {color: windowtext; font: menu; padding: 1px; padding-left: 5px; padding-right: 5px;} table {border-top: 1px solid buttonshadow; border-left: 1px solid buttonshadow; border-right: 1px solid buttonhighlight; border-bottom: 1px solid buttonhighlight; margin: 20px;} thead td {background: buttonface; font: menu; border: 1px outset white; cursor: default; padding-top: 0; padding: bottom: 0; border-top: 1px solid buttonhighlight; border-left: 1px solid buttonhighlight; border-right: 1px solid buttonshadow; border-bottom: 1px solid buttonshadow; height: 16px; } thead .arrow {font-family: webdings; color: black; padding: 0; font-size: 10px; height: 11px; width: 10px; overflow: hidden; margin-bottom: 2; margin-top: -3; padding: 0; padding-top: 0; padding-bottom: 2;} /*nice vertical positioning :-) */ </STYLE> </head> <body> <SCRIPT LANGUAGE="JavaScript"> <!-- /*----------------------------------------------------------------------------\ | Table Sort | |-----------------------------------------------------------------------------| | Created by Erik Arvidsson | | (http://webfx./contact.html#erik) | | For WebFX (http://webfx./) | |-----------------------------------------------------------------------------| | A DOM 1 based script that allows an ordinary HTML table to be sortable. | |-----------------------------------------------------------------------------| | Copyright (c) 1998 - 2002 Erik Arvidsson | |-----------------------------------------------------------------------------| | 1998-??-?? | First version | |-----------------------------------------------------------------------------| | Created 1998-??-?? | All changes are in the log above. | Updated 2001-??-?? | \----------------------------------------------------------------------------*/ var dom = (document.getElementsByTagName) ? true : false; var ie5 = (document.getElementsByTagName && document.all) ? true : false; var arrowUp, arrowDown; if (ie5 || dom) initSortTable(); function initSortTable() { arrowUp = document.createElement("SPAN"); var tn = document.createTextNode("5"); arrowUp.appendChild(tn); arrowUp.className = "arrow"; arrowDown = document.createElement("SPAN"); var tn = document.createTextNode("6"); arrowDown.appendChild(tn); arrowDown.className = "arrow"; } function sortTable(tableNode, nCol, bDesc, sType) { var tBody = tableNode.tBodies[0]; var trs = tBody.rows; var trl= trs.length; var a = new Array(); for (var i = 0; i < trl; i++) { a[i] = trs[i]; } var start = new Date; window.status = "Sorting data..."; a.sort(compareByColumn(nCol,bDesc,sType)); window.status = "Sorting data done"; for (var i = 0; i < trl; i++) { tBody.appendChild(a[i]); window.status = "Updating row " + (i + 1) + " of " + trl + " (Time spent: " + (new Date - start) + "ms)"; } // check for onsort if (typeof tableNode.onsort == "string") tableNode.onsort = new Function("", tableNode.onsort); if (typeof tableNode.onsort == "function") tableNode.onsort(); } function CaseInsensitiveString(s) { return String(s).toUpperCase(); } function parseDate(s) { return Date.parse(s.replace(/\-/g, '/')); } /* alternative to number function * This one is slower but can handle non numerical characters in * the string allow strings like the follow (as well as a lot more) * to be used: * "1,000,000" * "1 000 000" * "100cm" */ function toNumber(s) { return Number(s.replace(/[^0-9\.]/g, "")); } function compareByColumn(nCol, bDescending, sType) { var c = nCol; var d = bDescending; var fTypeCast = String; if (sType == "Number") fTypeCast = Number; else if (sType == "Date") fTypeCast = parseDate; else if (sType == "CaseInsensitiveString") fTypeCast = CaseInsensitiveString; return function (n1, n2) { if (fTypeCast(getInnerText(n1.cells[c])) < fTypeCast(getInnerText(n2.cells[c]))) return d ? -1 : +1; if (fTypeCast(getInnerText(n1.cells[c])) > fTypeCast(getInnerText(n2.cells[c]))) return d ? +1 : -1; return 0; }; } function sortColumnWithHold(e) { // find table element var el = ie5 ? e.srcElement : e.target; var table = getParent(el, "TABLE"); // backup old cursor and onclick var oldCursor = table.style.cursor; var oldClick = table.onclick; // change cursor and onclick table.style.cursor = "wait"; table.onclick = null; // the event object is destroyed after this thread but we only need // the srcElement and/or the target var fakeEvent = {srcElement : e.srcElement, target : e.target}; // call sortColumn in a new thread to allow the ui thread to be updated // with the cursor/onclick window.setTimeout(function () { sortColumn(fakeEvent); // once done resore cursor and onclick table.style.cursor = oldCursor; table.onclick = oldClick; }, 100); } function sortColumn(e) { var tmp = e.target ? e.target : e.srcElement; var tHeadParent = getParent(tmp, "THEAD"); var el = getParent(tmp, "TD"); if (tHeadParent == null) return; if (el != null) { var p = el.parentNode; var i; // typecast to Boolean el._descending = !Boolean(el._descending); if (tHeadParent.arrow != null) { if (tHeadParent.arrow.parentNode != el) { tHeadParent.arrow.parentNode._descending = null; //reset sort order } tHeadParent.arrow.parentNode.removeChild(tHeadParent.arrow); } if (el._descending) tHeadParent.arrow = arrowUp.cloneNode(true); else tHeadParent.arrow = arrowDown.cloneNode(true); el.appendChild(tHeadParent.arrow); // get the index of the td var cells = p.cells; var l = cells.length; for (i = 0; i < l; i++) { if (cells[i] == el) break; } var table = getParent(el, "TABLE"); // can't fail sortTable(table,i,el._descending, el.getAttribute("type")); } } function getInnerText(el) { if (ie5) return el.innerText; //Not needed but it is faster var str = ""; var cs = el.childNodes; var l = cs.length; for (var i = 0; i < l; i++) { switch (cs[i].nodeType) { case 1: //ELEMENT_NODE str += getInnerText(cs[i]); break; case 3: //TEXT_NODE str += cs[i].nodeValue; break; } } return str; } function getParent(el, pTagName) { if (el == null) return null; else if (el.nodeType == 1 && el.tagName.toLowerCase() == pTagName.toLowerCase()) // Gecko bug, supposed to be uppercase return el; else return getParent(el.parentNode, pTagName); } //--> </SCRIPT> <h2>Sample</h2> <p>Just click at the table headers to sort by that column</p> <table cellspacing="0" border="0" onclick="sortColumn(event)"> <thead> <tr> <td style="width: 60px;">Item</td> <td style="width: 60px;">Name</td> <td style="width: 60px;">Date</td> </tr> </thead> <tbody> <tr> <td>Item 3</td> <td>Steven</td> <td>950227</td> </tr> <tr> <td>Item 2</td> <td>Emil</td> <td>990227</td> </tr> <tr> <td>Item 1</td> <td>Erik</td> <td>990228</td> </tr> <tr> <td>Item 4</td> <td>Scott</td> <td>960227</td> </tr> <tr> <td>Item 7</td> <td>Fabian</td> <td>970227</td> </tr> <tr> <td>Item 6</td> <td>Thomas</td> <td>900227</td> </tr> <tr> <td>Item 5</td> <td>Mike</td> <td>880227</td> </tr> <tr> <td>Item 8</td> <td>Adam</td> <td>930227</td> </tr> <tr> <td>Item 11</td> <td>Bill</td> <td>940227</td> </tr> <tr> <td>Item 10</td> <td>Marc</td> <td>890227</td> </tr> <tr> <td>Item 9</td> <td>Linus</td> <td>980227</td> </tr> <tr> <td>Item 12</td> <td>Ronald</td> <td>960227</td> </tr> <tr> <td>Item 15</td> <td>Peter</td> <td>950227</td> </tr> <tr> <td>Item 14</td> <td>Carlos</td> <td>910227</td> </tr> <tr> <td>Item 13</td> <td>Paul</td> <td>920227</td> </tr> <tr> <td>Item 16</td> <td>Arnold</td> <td>960227</td> </tr> </tbody> </table> <p>Below is a table that is using a custom attribute called <code>type</code> in each header cell to define how to sort the column.</p> <table cellspacing="0" onclick="sortColumn(event)"> <thead> <tr> <td style="width: 60px;" type="String">String</td> <td style="width: 60px;" type="CaseInsensitiveString" title="CaseInsensitiveString">String</td> <td style="width: 60px;" type="Number">Number</td> <td style="width: 60px;" type="Date">Date</td> </tr> </thead> <tbody> <tr> <td>apple</td> <td>Strawberry</td> <td style="text-align: right;">45</td> <td>2001-03-13</td> </tr> <tr> <td>Banana</td> <td>orange</td> <td style="text-align: right;">7698</td> <td>1789-07-14</td> </tr> <tr> <td>orange</td> <td>Banana</td> <td style="text-align: right;">4546</td> <td>1949-07-04</td> </tr> <tr> <td>Strawberry</td> <td>apple</td> <td style="text-align: right;">987</td> <td>1975-08-19</td> </tr> <tr> <td>Pear</td> <td>blueberry</td> <td style="text-align: right;">98743</td> <td>2001-01-01</td> </tr> <tr> <td>blueberry</td> <td>Pear</td> <td style="text-align: right;">4</td> <td>2001-04-18</td> </tr> </tbody> </table> </body> </html> |
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来自： 荷露叮咚 > 《Javascript》
