锁定表头和固定列(Fixed table head and columns)

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源码：

/// <summary>
/// 锁定表头和列
/// <para> sorex.cnblogs.com </para>
/// </summary>
/// <param name="TableID" type="String">
/// 要锁定的Table的ID
/// </param>
/// <param name="FixColumnNumber" type="Number">
/// 要锁定列的个数
/// </param>
/// <param name="width" type="Number">
/// 显示的宽度
/// </param>
/// <param name="height" type="Number">
/// 显示的高度
/// </param>
function FixTable(TableID, FixColumnNumber, width, height) {
if ($("#" + TableID + "_tableLayout").length != 0) {
$("#" + TableID + "_tableLayout").before($("#" + TableID));
$("#" + TableID + "_tableLayout").empty();
}
else {
$("#" + TableID).after("<div id='" + TableID + "_tableLayout' style='overflow:hidden;height:" + height + "px; width:" + width + "px;'></div>");
}
$('<div id="' + TableID + '_tableFix"></div>'
+ '<div id="' + TableID + '_tableHead"></div>'
+ '<div id="' + TableID + '_tableColumn"></div>'
+ '<div id="' + TableID + '_tableData"></div>').appendTo("#" + TableID + "_tableLayout");
var oldtable = $("#" + TableID);
var tableFixClone = oldtable.clone(true);
tableFixClone.attr("id", TableID + "_tableFixClone");
$("#" + TableID + "_tableFix").append(tableFixClone);
var tableHeadClone = oldtable.clone(true);
tableHeadClone.attr("id", TableID + "_tableHeadClone");
$("#" + TableID + "_tableHead").append(tableHeadClone);
var tableColumnClone = oldtable.clone(true);
tableColumnClone.attr("id", TableID + "_tableColumnClone");
$("#" + TableID + "_tableColumn").append(tableColumnClone);
$("#" + TableID + "_tableData").append(oldtable);
$("#" + TableID + "_tableLayout table").each(function () {
$(this).css("margin", "0");
});
var HeadHeight = $("#" + TableID + "_tableHead thead").height();
HeadHeight += 2;
$("#" + TableID + "_tableHead").css("height", HeadHeight);
$("#" + TableID + "_tableFix").css("height", HeadHeight);
var ColumnsWidth = 0;
var ColumnsNumber = 0;
$("#" + TableID + "_tableColumn tr:last td:lt(" + FixColumnNumber + ")").each(function () {
ColumnsWidth += $(this).outerWidth(true);
ColumnsNumber++;
});
ColumnsWidth += 2;
if (navigator.appName == "Microsoft Internet Explorer" ) {
if(navigator.appVersion.match(/7./i) == "7.")
if (ColumnsNumber >= 3) ColumnsWidth--; if(navigator.appVersion.match(/8./i) == "8.")
if (ColumnsNumber >= 2) ColumnsWidth--;
} $("#" + TableID + "_tableColumn").css("width", ColumnsWidth);
$("#" + TableID + "_tableFix").css("width", ColumnsWidth);
$("#" + TableID + "_tableData").scroll(function () {
$("#" + TableID + "_tableHead").scrollLeft($("#" + TableID + "_tableData").scrollLeft());
$("#" + TableID + "_tableColumn").scrollTop($("#" + TableID + "_tableData").scrollTop());
}); function tableWheel(event) {
var delta = 0;
if (!event) event = window.event;
if (event.wheelDelta) {
delta = event.wheelDelta;
if (window.opera)
delta = delta;
} else if (event.detail) {
delta = -event.detail * 15;
}
var tst = $("#" + TableID + "_tableData").scrollTop() - delta;
$("#" + TableID + "_tableColumn").scrollTop(tst);
$("#" + TableID + "_tableData").scrollTop(tst)
} document.getElementById(TableID + "_tableColumn").onmousewheel = function (event) {
if (!event) event = window.event;
tableWheel(event);
}
document.getElementById(TableID + "_tableColumn").addEventListener("DOMMouseScroll", function (event) {
if (!event) event = window.event;
tableWheel(event);
}, false); $("#" + TableID + "_tableFix").css({ "overflow": "hidden", "position": "relative", "z-index": "50", "background-color": "Silver" });
$("#" + TableID + "_tableHead").css({ "overflow": "hidden", "width": width - 17, "position": "relative", "z-index": "45", "background-color": "Silver" });
$("#" + TableID + "_tableColumn").css({ "overflow": "hidden", "height": height - 17, "position": "relative", "z-index": "40", "background-color": "#efefef" });
$("#" + TableID + "_tableData").css({ "overflow": "auto", "width": width, "height": height, "position": "relative", "z-index": "35" });
if ($("#" + TableID + "_tableHead").width() > $("#" + TableID + "_tableFix table").width()) {
$("#" + TableID + "_tableHead").css("width", $("#" + TableID + "_tableFix table").width());
$("#" + TableID + "_tableData").css("width", $("#" + TableID + "_tableFix table").width() + 17);
}
if ($("#" + TableID + "_tableColumn").height() > $("#" + TableID + "_tableColumn table").height()) {
$("#" + TableID + "_tableColumn").css("height", $("#" + TableID + "_tableColumn table").height());
$("#" + TableID + "_tableData").css("height", $("#" + TableID + "_tableColumn table").height() + 17);
}
$("#" + TableID + "_tableFix").offset($("#" + TableID + "_tableLayout").offset());
$("#" + TableID + "_tableHead").offset($("#" + TableID + "_tableLayout").offset());
$("#" + TableID + "_tableColumn").offset($("#" + TableID + "_tableLayout").offset());
$("#" + TableID + "_tableData").offset($("#" + TableID + "_tableLayout").offset());
}