我花了两天时间寻找一个关于如何通过 javascript 隐藏 jQuery dataTables 中的空列的好解决方案,所以我找到了自己的解决方案,编写了一个新插件,我认为这将帮助其他人快速完成,如果你发现这个插件有用的话随意扩展它并发布您的代码以帮助其他人改进他们的数据表。
$.fn.dataTableExt.oApi.fnHideEmptyColumns = function ( oSettings, tableObject )
{
/**
* This plugin hides the columns that are empty.
* If you are using datatable inside jquery tabs
* you have to add manually this piece of code
* in the tabs initialization
* $("#mytable").datatables().fnAdjustColumnSizing();
* where #mytable is the selector of table
* object pointing to this plugin.
* This plugin should only be invoked from
* fnInitComplete callback.
* @author John Diaz
* @version 1.0
* @date 06/28/2013
*/
var selector = tableObject.selector;
var columnsToHide = [];
$(selector).find('th').each(function(i) {
var columnIndex = $(this).index();
var rows = $(this).parents('table').find('tr td:nth-child(' + (i + 1) + ')'); //Find all rows of each column
var rowsLength = $(rows).length;
var emptyRows = 0;
rows.each(function(r) {
if (this.innerHTML == '')
emptyRows++;
});
if(emptyRows == rowsLength) {
columnsToHide.push(columnIndex); //If all rows in the colmun are empty, add index to array
}
});
for(var i=0; i< columnsToHide.length; i++) {
tableObject.fnSetColumnVis( columnsToHide[i], false ); //Hide columns by index
}
/**
* The following line doesn't work when the plugin
* is used inside jquery tabs, then you should
* add manually this piece of code inside
* the tabs initialization where ("#myTable") is
* your table id selector
* ej: $("#myTable").dataTable().fnAdjustColumnSizing();
*/
tableObject.fnAdjustColumnSizing();
}
插件调用:
"fnInitComplete": function () {
/**
* Go to plugin definition for
* instructions on how to use.
*/
this.fnHideEmptyColumns(this);
}
如果您对代码有一些观察,请保持礼貌,这不是关于如何隐藏 jQuery dataTables 插件的空列的最后一句话。