Javascript 单击按钮时,如何触发jquery datatables fnServerData通过AJAX更新表?
我将datatables插件用于服务器端数据,并使用AJAX更新表 我的dataTables设置如下所示:Javascript 单击按钮时,如何触发jquery datatables fnServerData通过AJAX更新表?,javascript,jquery,ajax,triggers,datatables,Javascript,Jquery,Ajax,Triggers,Datatables,我将datatables插件用于服务器端数据,并使用AJAX更新表 我的dataTables设置如下所示: tblOrders = parameters.table.dataTable( { "sDom": '<"S"f>t<"E"lp>', "sAjaxSource": "../file.cfc", "bServerSide": true, "sPaginationType": "full_numbers", "bPagina
tblOrders = parameters.table.dataTable( {
"sDom": '<"S"f>t<"E"lp>',
"sAjaxSource": "../file.cfc",
"bServerSide": true,
"sPaginationType": "full_numbers",
"bPaginate": true,
"bRetrieve": true,
"bLengthChange": false,
"bAutoWidth": false,
"aaSorting": [[ 10, "desc" ]],
"aoColumns": [
... columns
],
"fnInitComplete": function(oSettings, json) {
// trying to listen for updates
$(window).on('repaint_orders', function(){
$('.tbl_orders').fnServerData( sSource, aoData, fnCallback, oSettings );
});
},
"fnServerData": function ( sSource, aoData, fnCallback, oSettings ) {
var page = $(oSettings.nTable).closest('div:jqmData(wrapper="true")')
aoData.push(
{ "name": "returnformat", "value": "plain"},
{ "name": "s_status", "value": page.find('input[name="s_status"]').val() },
{ "name": "s_bestellnr", "value": page.find('input[name="s_bestellnr"]').val() },
{ "name": "form_submitted", "value": "dynaTable" }
);
$.ajax({ "dataType": 'json', "type": "POST", "url": sSource, "data": aoData , "success": fnCallback });
}
$("#userFilter").on("change", function () {
oTable.fnReloadAjax(); // In your case this would be 'tblOrders.fnReloadAjax();'
});
<pre>
$.fn.dataTableExt.oApi.fnReloadAjax = function (oSettings, sNewSource, myParams ) {
if ( oSettings.oFeatures.bServerSide ) {
oSettings.aoServerParams = [];
oSettings.aoServerParams.push({"sName": "user",
"fn": function (aoData) {
for (var i=0;i<myParams.length;i++){
aoData.push( {"name" : myParams[i][0], "value" : myParams[i][1]});
}
}});
this.fnClearTable(oSettings);
this.fnDraw();
return;
}
};
</pre>
<pre>
var oTable;
if (oTable == null) {
oTable = $(".items").dataTable(/* your inti stuff here */); {
}else{
oTable.fnReloadAjax(oTable.oSettings, supplier, val);
}
</pre>
"fnServerData": function ( sSource, aoData, fnCallback ) {
//* Add some extra data to the sender *
newData = aoData;
newData.push({ "name": "key", "value": $('#value').val() });
$.getJSON( sSource, newData, function (json) {
//* Do whatever additional processing you want on the callback, then tell DataTables *
fnCallback(json);
} );
},
tblOrders=parameters.table.dataTable({
“sDom”:“t”,
“sAjaxSource”:“./file.cfc”,
“bServerSide”:正确,
“sPaginationType”:“完整编号”,
“bPaginate”:对,
“bRetrieve”:没错,
“bLengthChange”:false,
“bAutoWidth”:假,
“aaSorting”:[[10,“desc”],
“列”:[
…专栏
],
“fnInitComplete”:函数(oSettings,json){
//正在尝试侦听更新
$(窗口).on('repaint_orders',function(){
$('.tbl_orders').fnServerData(sSource、aoData、fnCallback、oSettings);
});
},
“fnServerData”:函数(sSource、aoData、fnServerData回调、oSettings){
var page=$(oSettings.nTable).closest('div:jqmData(wrapper=“true”))
aoData.push(
{“name”:“returnformat”,“value”:“plain”},
{“name”:“s_status”,“value”:page.find('input[name=“s_status”]').val(),
{“name”:“s_bestellnr”,“value”:page.find('input[name=“s_bestellnr”]').val(),
{“name”:“form_submitted”,“value”:“dynaTable”}
);
$.ajax({“dataType”:“json”,type”:“POST”,“url”:sSource,“data”:aoData,“success”:fnCallback});
}
我有一些用于过滤数据服务器端的自定义字段,我正在推动AJAX请求。问题是,我不知道如何从表外触发JSON请求。如果用户键入过滤器,fnServerData将触发并更新表。但是,如果用户选择表外的控件,我不知道如何触发fnServerData功能
现在,我正在尝试使用FNINTIMPLETE中触发和侦听的自定义事件。虽然我可以检测到用户选择自定义筛选条件,但我缺少fnServerData正确触发所需的所有参数
问题:有没有办法从实际dataTables表之外的按钮触发fnServerData 我想我可以尝试向过滤器添加一个空间,但这不是一个真正的选项 谢谢你的意见
问题我不久前发现了这个脚本(所以我不记得它是从哪里来的:(以及应该归功于谁:')()但这里:
$.fn.dataTableExt.oApi.fnReloadAjax = function (oSettings, sNewSource, fnCallback, bStandingRedraw) {
if (typeof sNewSource != 'undefined' && sNewSource != null) {
oSettings.sAjaxSource = sNewSource;
}
this.oApi._fnProcessingDisplay(oSettings, true);
var that = this;
var iStart = oSettings._iDisplayStart;
var aData = [];
this.oApi._fnServerParams(oSettings, aData);
oSettings.fnServerData(oSettings.sAjaxSource, aData, function (json) {
/* Clear the old information from the table */
that.oApi._fnClearTable(oSettings);
/* Got the data - add it to the table */
var aData = (oSettings.sAjaxDataProp !== "") ?
that.oApi._fnGetObjectDataFn(oSettings.sAjaxDataProp)(json) : json;
for (var i = 0; i < aData.length; i++) {
that.oApi._fnAddData(oSettings, aData[i]);
}
oSettings.aiDisplay = oSettings.aiDisplayMaster.slice();
that.fnDraw();
if (typeof bStandingRedraw != 'undefined' && bStandingRedraw === true) {
oSettings._iDisplayStart = iStart;
that.fnDraw(false);
}
that.oApi._fnProcessingDisplay(oSettings, false);
/* Callback user function - for event handlers etc */
if (typeof fnCallback == 'function' && fnCallback != null) {
fnCallback(oSettings);
}
}, oSettings);
}
userFilter
是下拉列表的ID,因此当它更改时,它会重新加载表的数据。我只是添加了这个示例,但您可以在任何事件中触发它。前面提到的所有解决方案都有一些问题(例如,附加的用户http参数未发布或过时).所以我想出了以下有效的解决方案
扩展函数(我的参数是键值对数组)
$.fn.dataTableExt.oApi.fnReloadAjax=函数(oSettings、sNewSource、myParams){
if(oSettings.oFeatures.bServerSide){
oSettings.aoServerParams=[];
oSettings.aoServerParams.push({“sName”:“user”,
“fn”:功能(aoData){
对于(var i=0;i,在一次讨论中,Allan(DataTables的家伙)建议,只需调用fnDraw就可以得到您想要的结果。这是我用于重新加载服务器端内容的方法(通过fnServerData,这很重要),到目前为止,它已经奏效了
newData = aoData;
newData.push({ "name": "key", "value": $('#value').val() });
在初始化过程中,请使用:
$.fn.dataTableExt.oApi.fnReloadAjax = function (oSettings, sNewSource, myParams ) {
if(oSettings.oFeatures.bServerSide) {
if ( typeof sNewSource != 'undefined' && sNewSource != null ) {
oSettings.sAjaxSource = sNewSource;
}
oSettings.aoServerParams = [];
oSettings.aoServerParams.push({"sName": "user",
"fn": function (aoData) {
for(var index in myParams) {
aoData.push( { "name" : index, "value" : myParams[index] });
}
}
});
this.fnClearTable(oSettings);
return;
}
};
var myArray = {
"key1": "value1",
"key2": "value2"
};
var oTable = $("#myTable").dataTable();
oTable.fnReloadAjax(oTable.oSettings, myArray);
然后使用:
this.api( true ).draw( true );
fnServerData中的重要内容是:
// Note that this isn't an exact match to the old call to _fnDraw - it takes
// into account the new data, but can hold position.
如果直接推送到aoData,第一次更改是永久性的,当您再次绘制表时,fnDraw无法按您希望的方式工作。因此,使用aoData的副本将数据推送到ajax。类似于Mitja Gustin answer。更改了循环,添加了sNewSource
$('#exampleDataTable').DataTable()._fnAjaxUpdate();
我知道这已经晚了,但是从v1.10开始就不推荐使用fnDraw
(from-应该是公认的答案)
新方法是:
顺便说一句,它的评论是:
要重新加载数据,只需使用jquery选择器和DataTable()
函数选择DataTable,然后调用\u fnAjaxUpdate
函数
下面是一个例子:
@频繁似乎您正在使用一个相当标准的初始化,因此它应该可以开箱即用。我正在尝试让fnReloadAjax工作,但无法理解当您在方法调用中不传递任何参数时,它是如何工作的?定义有4个参数,它们不重要吗?谢谢发布。我会看一看如果这能让事情变得容易一点。
this.api( true ).draw( true );
// Note that this isn't an exact match to the old call to _fnDraw - it takes
// into account the new data, but can hold position.
$('#exampleDataTable').DataTable()._fnAjaxUpdate();