Question

我有一个HTML表格，如http://jsfiddle.net/Lijo/auny3/所示。该表有10列 - 分为三个col组。我需要使用“Show Associate”和“Hide Associate”按钮隐藏/显示名为“Associate Info”的colgroup（包括其行数据）。

使用jQuery执行此操作的最佳方式（在性能方面）是什么？

如果答案比http://jsfiddle.net/Lijo/auny3/8/

更好，请回答

注意：我使用的ASP.Net GridView生成表格 http://www.sacdeveloper.com/Community/Articles/tabid/86/ctl/ArticleView/mid/458/articleId/1/Group_columns_in_an_ASPNet_Gridview.aspx

参考：

选择的答案

http://jsfiddle.net/Lijo/UqdQp/2/

enter image description here

Answer 1

你现在习惯了这个

Jquery

$(document).ready(function(){

$("#show").click(function(){
    $("#showhide").show();
    });



    $("#hide").click(function(){
    $("#showhide").hide();
    });
})

并对您的HTML进行了一些更改

的 Live demo 的

Answer 2

或者您可以使用nth-child选择器：

$('input').click(function(){
    if($(this).val() == "Hide Associate"){
    $('th:nth-child(2), td:nth-child(2), th:nth-child(3):not(:first), td:nth-child(3), th:nth-child(4), td:nth-child(4), th:nth-child(5), td:nth-child(5)').hide();
    }else{
        $('th:nth-child(2), td:nth-child(2), th:nth-child(3):not(:first), td:nth-child(3), th:nth-child(4), td:nth-child(4), th:nth-child(5), td:nth-child(5)').show();
    }
});

Answer 3

在这里，使用您当前的HTML，并且如果您的Associate Info标头存储了更多列（脚本正在查找其colspan属性以获取适当数量的列），它将继续工作。

$("input").on("click", function(e){
    e.preventDefault();

    var label = $(".resultGridTable .tableColGroupAssociate"),
        colspan = parseInt(label.attr("colspan"), 10),
        associate = $("tr:gt(0)")
                        .find("th:gt(0):lt("+ colspan +"), td:gt(0):lt("+ colspan +")")
                        .add(label);

    if($(this).val() == 'Hide Associate') associate.hide();
        else associate.show();
});

DEMO

Answer 4

我概括了@Pioul提供的想法。因此，如果你喜欢这个答案，请为@Pioul投票。这种通用方法可在http://jsfiddle.net/Lijo/UqdQp/10/

中找到

参考文献：

Finding column index using jQuery when table contains column-spanning cells
Select table cells based on the value in the cell

CODE

var associateStartElementString = "EmpID";
var financialStartElementString = "Type";

var associateHTMLElements;
var financialHTMLElements;

var associateHideClass = '.tableColGroupAssociate';
var financialHideClass = '.tableColGroupTransaction';

$(document).ready(function () {



////////Hide Sections


//Associate Hide
$('.associateHide').live("click", function (e) {
    e.preventDefault();


    var hideClass = associateHideClass; 
    associateHTMLElements = HideSection(hideClass, associateStartElementString);

    $('.btnAssociate').show();

});

//Financial Hide
$('.financialHide').live("click", function (e) {
    e.preventDefault();

  var hideClass = financialHideClass ;

    financialHTMLElements = HideSection(hideClass, financialStartElementString);

    $('.btnFinancial').show();

});


////SHOW 
$('.btnAssociate').click(function()
{
    associateHTMLElements.show();

      var firstHeaderLineElement = $(".resultGridTable").find(associateHideClass );

    firstHeaderLineElement.show(); 

});


$('.btnFinancial').click(function()
{
    financialHTMLElements.show();

      var firstHeaderLineElement = $(".resultGridTable").find(financialHideClass );

    firstHeaderLineElement.show(); 

});



//Function 1
function HideSection(hideClass, startElementString) 
{

var htmlElement = GetTableSections(hideClass, startElementString);

var firstHeaderLineElement = $(".resultGridTable").find(hideClass);

var variableToSet;

if (!(htmlElement === undefined)) {

    variableToSet = htmlElement;
    htmlElement.hide();
    firstHeaderLineElement.hide();
}

return variableToSet;
}


//Function 2
function GetTableSections(hideClass, referenceHeaderCellValue) {


var firstHeaderLineElement = $(".resultGridTable").find(hideClass);
var colspan = parseInt(firstHeaderLineElement.attr("colspan"));


var startElementIndex = GetNonColSpanIndex(referenceHeaderCellValue);


if (startElementIndex > 0) {

    startElementIndex = (startElementIndex - 1);

    var selectedElements = $("tr:gt(0)")
                                    .find("th:gt(" + startElementIndex + "):lt(" + colspan + "), td:gt(" + startElementIndex + "):lt(" + colspan + ")");

    return selectedElements;

}


}

//Function 3
function GetNonColSpanIndex(referenceHeaderCellValue) {


var selectedCell = $("th").filter(function (i) {
    return ($.trim($(this).html())) == referenceHeaderCellValue;


});


var allCells = $(selectedCell).parent('tr').children();
var normalIndex = allCells.index($(selectedCell));
var nonColSpanIndex = 0;


allCells.each(
    function (i, item) {
        if (i == normalIndex)
            return false;

        var colspan = $(selectedCell).attr('colspan');
        colspan = colspan ? parseInt(colspan) : 1;
        nonColSpanIndex += colspan;
    }
    );

return nonColSpanIndex;
};


}
);

使用jQuery使用colspan显示/隐藏表列

4 个答案: