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


    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 + "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());
    }
    //固定表头
        var curWidth = $(window).width();
        var curHeight = $(window).height();
        FixTable("tblMain", 9, curWidth - 10, curHeight - 90);

     提示:需要先设置table默认宽、高

    具体实例来源

    建议使用JqGrid或EasyUI等固定表头表列,此例仅供参考学习

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  • 原文地址:https://www.cnblogs.com/elves/p/5507161.html
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