使用jquery datatable时如果采用了下面配置
代码语言：javascript复制$('#xx').DataTable({
"serverSide": true, --在服务端处理数据
"processing": true,
"bAutoWidth": false,
"autoWidth": false,
那么这种情况下不能通过.clear().draw()方法来清除datatable，因为draw方法会引起table reload方法调用！
部分相关代码：
代码语言：javascript复制function _fnDraw( oSettings )
{
/* Provide a pre-callback function which can be used to cancel the draw is false is returned */
var aPreDraw = _fnCallbackFire( oSettings, 'aoPreDrawCallback', 'preDraw', [oSettings] );
if ( $.inArray( false, aPreDraw ) !== -1 )
{
_fnProcessingDisplay( oSettings, false );
return;
}
var i, iLen, n;
var anRows = [];
var iRowCount = 0;
var asStripeClasses = oSettings.asStripeClasses;
var iStripes = asStripeClasses.length;
var iOpenRows = oSettings.aoOpenRows.length;
var oLang = oSettings.oLanguage;
var iInitDisplayStart = oSettings.iInitDisplayStart;
var bServerSide = _fnDataSource( oSettings ) == 'ssp';
var aiDisplay = oSettings.aiDisplay;
oSettings.bDrawing = true;
/* Check and see if we have an initial draw position from state saving */
if ( iInitDisplayStart !== undefined && iInitDisplayStart !== -1 )
{
oSettings._iDisplayStart = bServerSide ?
iInitDisplayStart :
iInitDisplayStart >= oSettings.fnRecordsDisplay() ?
0 :
iInitDisplayStart;
oSettings.iInitDisplayStart = -1;
}
var iDisplayStart = oSettings._iDisplayStart;
var iDisplayEnd = oSettings.fnDisplayEnd();
/* Server-side processing draw intercept */
if ( oSettings.bDeferLoading )
{
oSettings.bDeferLoading = false;
oSettings.iDraw ;
_fnProcessingDisplay( oSettings, false );
}
else if ( !bServerSide )
{
oSettings.iDraw ;
}
else if ( !oSettings.bDestroying && !_fnAjaxUpdate( oSettings ) )
{
return;
}
