我遇到了一个奇怪的问题，它只出现在选定环境中的 dataTable 中。我编写了一个函数，允许用户删除一行，然后如果它是该特定页面上的最后一行，则重新加载表并将用户发送到“新”最后一页。
但是，在某些服务器上，它不能正常工作——我认为这与使用 fnClearTable 和 fnDraw 后，表格的分页仍然保留最后一个“空”页有关。
这是我现在正在使用的功能：
function fnDelete(elem) {
if (selected.length > 0) {
var c;
c = confirm("Are you sure you want to delete the selected Agency?");
if (c) {
var deleteURL = urlstr.substring(0, urlstr.lastIndexOf("/") + 1) + "delete.do";
deleteRecord(deleteURL, selected[0]);
if ($(".tableViewer tbody tr:visible").length === 1) {
oTable.fnClearTable();
oTable.fnDraw();
oTable.fnPageChange("last");
}}}}
另外，这是我的删除功能。
function deleteRecord(deleteURL, iid){
var didDelete = false;
jQuery.ajax({
type: "POST",
url: deleteURL,
dataType:"html",
data:"recordID="+iid,
async : false,
success:function(response){
didDelete = true;
oTable.fnDraw(true);
selected = [];
selectedRecord = [];
enableButtons(selected);
},
error:function (xhr, ajaxOptions, thrownError){
<%-- is the message in a range we can handle? --%>
if ((xhr.status >=400) && (xhr.status < 500)) {
alert(xhr.responseText);
}
else {
alert('<spring:message arguments="" text="Internal Server Error" code="ajax.internal.server.error"/>');
}
}
});
return didDelete;
}
同样，此问题仅在某些计算机上出现。任何人都可以帮忙吗？
另外，这是我的 DataTable 的配置：
oTable = $('#${tableName}_grid').dataTable({
bDestroy: true,
bSort: true,
bFilter: true,
bJQueryUI: true,
bProcessing: true,
bAutoWidth: true,
bInfo: true,
bLengthChange: true,
iDisplayLength: ${sessionScope.displayLength},
sPaginationType: 'full_numbers',
bServerSide: true,
sAjaxSource: "<c:url value='${dataUrl}'/>",
aaSorting: [<c:forEach items="${sortInfo}" var="oneSort"> [${oneSort.columnIndex},'${oneSort.ascending ? "asc":"desc"}']</c:forEach>],
aoColumns: [
<c:forEach items="${columns}" var="curCol" varStatus="colLoop">
{sName: '${curCol.fieldName}', bSortable: ${curCol.sortable}, bSearchable: false, sTitle: "<c:out value='${curCol.title}'/>", sType: '${curCol.displayType}', bVisible:${curCol.visible}, vdbType:'${curCol.vdbType}', sClass:'${curCol.displayType}'}${colLoop.last ? '' : ','}
</c:forEach>
],
aoColumnDefs:[{sClass:"color_col", aTargets:['color']}],
fnRowCallback: function( nRow, aData, iDisplayIndex ) {
$('#${tableName}_grid tbody tr').each( function () {
if ($.inArray(aData[0], selected)!=-1) {
$(this).addClass('row_selected');
}
});
return nRow;
},
fnInfoCallback: function( oSettings, iStart, iEnd, iMax, iTotal, sPre ) {
if(myPos>=iStart && myPos<=iEnd){
//alert(myPos+" visible")
}else{
selected = [];
selected = [];
selectedRecord = [];
$('tr').removeClass('row_selected');
enableButtons(selected);
}
},
fnDrawCallback: function ( oSettings ) {
$('#${tableName}_grid tbody tr').each( function () {
var iPos = myPos = oTable.fnGetPosition( this );
if (iPos!=null) {
var aData = oTable.fnGetData( iPos );
if ($.inArray(aData[0], selected)!=-1) {
$(this).addClass('row_selected');
}
}
var htxt = '';
$(this).find('.color').filter(function(i,tdata){
htxt = '';
htxt = '#'+($(tdata).text());
return true;
}).css("background",htxt);
$(this).dblclick( function(){
var iPos = myPos = oTable.fnGetPosition(this);
var aData = oTable.fnGetData(iPos);
var iId = aData[0];
selected = [];
selectedRecord = [];
selected.push(iId);
selectedRecord.push(aData);
$('tr').removeClass('row_selected');
$(this).addClass('row_selected');
enableButtons(selected);
<%-- in case there is no edit button or its enablement is more complex,
// click the button instead of assuming it will call fnEdit.
// Do first() because jQuery is returning the same element multiple times.--%>
$(".${tableName}_bttns > span.edit-doubleclick:not(.disabld)").first().click();
});
$(this).click( function () {
var iPos = myPos = oTable.fnGetPosition(this);<%-- row index on_this_page --%>
var aData = oTable.fnGetData(iPos);
var iId = aData[0];
var is_in_array = $.inArray(iId, selected);
<%-- alert("iPos: " + iPos + "\nData: " + aData + "\niId: " + iId + "\nselected: " + selected + "\nis_in_array: " + is_in_array); --%>
selected = [];
selectedRecord = [];
if (is_in_array==-1) {
selected.push(iId);
selected.sort(function(a,b){return a-b});
selectedRecord.push(aData);
selectedRecord.sort(function(a,b){return a[0]-b[0]});
}
else {
selected = $.grep(selected, function(value) {
return value != iId;
});
selectedRecord = $.grep(selectedRecord, function(value) {
return value != aData;
});
}
if ( $(this).hasClass('row_selected') ) {
$(this).removeClass('row_selected');
}
else {
$('#${tableName}_grid tr').removeClass('row_selected');
$(this).addClass('row_selected');
}
enableButtons(selectedRecord);
});
});
} ,
"sDom": '<"H"lTfr>t<"F"ip>',
"oTableTools":{
"aButtons":[ {
"sExtends":"print",
"bShowAll": true,
"sInfo": printmsg,
"sButtonClass":"ui-icon fg-button ui-button edit-print DTTT_button_print",
"sButtonClassHover":"ui-icon fg-button ui-button edit-print DTTT_button_print"
} ] }
});
$('#${tableName}_grid_filter input').attr("maxlength", "255").attr("size", "35");
$('#${tableName}_grid').ready(function(){
$(".DTTT_containerc").remove();
BuildToolBarButtons();
var tt;
$(".DTTT_containerc").each(function(){
tt = $(this).find("#Print").attr("title");
$(this).find("#Print").remove();
$(this).find(".DTTT_container").remove();
}
);
$(".DTTT_container > button").attr("title",tt).css("border","1px solid #9597A3").removeClass("ui-state-default");
$(".DTTT_containerc").append($(".DTTT_container").removeAttr("style"));
});
});