ASP.NET的HTMLTable原样导出到Excel

 function PrintTableToExcelEx(objTab)
            {
                try 
                {
                    var xls = new ActiveXObject( "Excel.Application" );
                }
                catch(e) 
                {
                    alert( "您必须安装Excel电子表格软件，同时浏览器须使用“ActiveX 控件”，您的浏览器须允许执行控件。 请点击【帮助】了解浏览器设置方法！");
                    return false;
                }
                xls.visible = true;

                var xlBook  = xls.Workbooks.Add;
                var xlsheet = xlBook.Worksheets(1);
               
                var CurX = 1;
                var CurY = 1;
               
                for (var i = 0; i < objTab.rows.length; i++)
                {
                    for (var j = 0; j < objTab.rows[i].cells.length; j++)
                    {
                        var cell = objTab.rows[i].cells[j];
                       
                        var v = cell.outerText;
                                                           
                        if ( cell.children != null && cell.children.length != 0 )
                        {
                            v = "";
                            for ( var k = 0; k < cell.children.length; k++ )
                            {
                                var cc = cell.children[k];
                               
                                switch (cc.type)
                                {
                                    case "select-one":
                                        for ( var l = 0; l < cc.options.length; l++ )
                                            if ( cc.options[l].selected )    v += cc.options[l].text;
                                        break;
                                    case "text":
                                        v += cc.value;
                                        break;
                                    case "checkbox":
                                        v += cc.checked ? "是" : "否";
                                        break;
                                    case undefined:
                                        v += cell.outerText;
                                        break;
                                    case "hidden":
                                        break;
                                    default:
                                        //v += cc.id + "/";
                                        //v += cc.tagname + "/";
                                        //v += cc.type + "/"
                                        v += cc.value;
                                        break;       
                                }
                            }
                        }

                        while ( xlsheet.Cells(CurX,CurY).MergeCells )        CurY++;
                       
                        xlsheet.Cells(CurX, CurY).HorizontalAlignment = 2;                   
                        var align = cell.getAttribute("align");
                        switch ( align )
                        {
                            case "left":
                                xlsheet.Cells(CurX, CurY).HorizontalAlignment = 2;//XlHalign.xlHalignLeft;
                                break;
                            case "center":
                                xlsheet.Cells(CurX, CurY).HorizontalAlignment = 3;;//XlHalign.xlHalignCenter;       
                                break;
                            case "right":
                                xlsheet.Cells(CurX, CurY).HorizontalAlignment = 4;//XlHalign.xlHalignRight;
                                break;
                        }
                        xlsheet.Cells(CurX, CurY).WrapText = true;
                        xlsheet.Cells(CurX, CurY).VerticalAlignment = 2;
                        xlsheet.Cells(CurX, CurY).Value = v;
                        xlsheet.Cells(CurX, CurY).Borders.LineStyle = 1;

                        var rowSpan = cell.getAttribute("RowSpan");
                        var colSpan = cell.getAttribute("ColSpan");
                        if ( rowSpan >= 2 || colSpan >= 2 )
                        {
                            var R = xls.Range(xls.Cells(CurX, CurY), xls.Cells(CurX + rowSpan - 1, CurY + colSpan - 1));
                            R.MergeCells = true;
                            R.Borders.LineStyle = 1;
                        }
                        CurY++;                       
                    }
                   
                    CurX++;
                    CurY = 1;
                }
                xlsheet.Columns.AutoFit; //自动适应大小
                return;
            }