[英]Event only fires once when making Ajax request in jQuery
我有幾個使用 SPServices 從 SharePoint 填充的下拉列表。 這部分效果很好。 但是,我有一個按鈕,單擊該按鈕即可從 SharePoint 加載數據,並使用下拉文本作為過濾器來獲取將使用 DataTables 插件填充表格的數據。 這部分只工作一次; 如果我再次單擊該按鈕,則沒有任何反應。
這就是我填充下拉列表的方式:
$(document).ready(function () {
var theYear; // Selected Year
var theRO; // Selected RO
//Fills the Dropdown lists (Year and RO)
$().SPServices({
operation: "GetListItems",
async: false,
listName: "{ListID}",
CAMLViewFields: "<ViewFields><FieldRef Name='Fiscal_x0020_Year' /><FieldRef Name='Regional_x0020_Office' /></ViewFields>",
completefunc: function (xData, Status) {
//Add Select Value option
$("#dropdown").prepend($('<option>', {
value: '',
text: 'Select Fiscal Year'
}));
$("#dropdownRO").prepend($('<option>', {
value: '',
text: 'Select Regional Office'
}));
//Fetching Data from SharePoint
$(xData.responseXML).SPFilterNode("z:row").each(function () {
var dropDown = "<option value='" + $(this).attr("ows_Fiscal_x0020_Year") + "'>" + $(this).attr("ows_Fiscal_x0020_Year") + "</option>";
var dropDownRO = "<option value='" + $(this).attr("ows_Regional_x0020_Office") + "'>" + $(this).attr("ows_Regional_x0020_Office") + "</option>";
$("#dropdown").append(dropDown);
$("#dropdownRO").append(dropDownRO);
/////////////Deletes duplicates from dropdown list////////////////
var usedNames = {};
$("#dropdown > option, #dropdownRO > option").each(function () {
if (usedNames[this.text]) {
$(this).remove();
} else {
usedNames[this.text] = this.value;
}
});
////Deletes repeated rows from table
var seen = {};
$('#myTable tr, #tasksUL li, .dropdown-menu li').each(function () {
var txt = $(this).text();
if (seen[txt]) $(this).remove();
else seen[txt] = true;
});
});
} //end of completeFunc
}); //end of SPServices
$('.myButton').on('click', function () {
run()
});
}); //End jQuery Function
這是我在更改下拉列表中的選擇后每次單擊“myButton”時需要運行的功能:
function run() {
theYear = $('#dropdown option:selected').text(); // Selected Year
theRO = $('#dropdownRO option:selected').text(); // Selected RO
var call = $.ajax({
url: "https://blah-blah-blah/_api/web/lists/getByTitle('Consolidated%20LC%20Report')/items()?$filter=Fiscal_x0020_Year%20eq%20'" + theYear + "' and Regional_x0020_Office eq '" + theRO + "'&$orderby=Id&$select=Id,Title,Fiscal_x0020_Year,Notices_x0020_Received,Declined_x0020_Participation,Selected_x0020_Field_x0020_Revie,Selected_x0020_File_x0020_Review,Pending,Pending_x0020_Previous_x0020_Yea,Controversial,GFP_x0020_Reviews,NAD_x0020_Appeals,Mediation_x0020_Cases,Monthly_x0020_Cost_x0020_Savings,Monthly_x0020_Expenditure,Regional_x0020_Office,Month_Number", //Works, filters added
type: "GET",
cache: false,
dataType: "json",
headers: {
Accept: "application/json;odata=verbose",
}
}); //End of ajax function///
call.done(function (data, textStatus, jqXHR) {
var oTable = $('#example').dataTable({
"aLengthMenu": [
[25, 50, 100, 200, -1],
[25, 50, 100, 200, "All"]
],
"iDisplayLength": -1, //Number of rows by default. -1 means All Records
"sPaginationType": "full_numbers",
"aaData": data.d.results,
"bJQueryUI": false,
"bProcessing": true,
"aoColumns": [{
"mData": "Id",
"bVisible": false
}, //Invisible column
{
"mData": "Title"
}, {
"mData": "Notices_x0020_Received"
}, {
"mData": "Declined_x0020_Participation"
}, {
"mData": "Selected_x0020_Field_x0020_Revie"
}, {
"mData": "Selected_x0020_File_x0020_Review"
}, {
"mData": "Pending"
}, {
"mData": "Pending_x0020_Previous_x0020_Yea"
}, {
"mData": "Controversial"
}, {
"mData": "GFP_x0020_Reviews"
}, {
"mData": "NAD_x0020_Appeals"
}, {
"mData": "Mediation_x0020_Cases"
}, {
"mData": "Monthly_x0020_Cost_x0020_Savings",
"fnRender": function (obj, val) {
return accounting.formatMoney(val);
}
}, {
"mData": "Monthly_x0020_Expenditure",
"fnRender": function (obj, val) {
return accounting.formatMoney(val);
}
}],
"bDeferRender": true,
"bRetrieve": true,
"bInfo": true,
"bAutoWidth": true,
"bDestroy": true,
"sDom": 'T&;"clear"&;frtip',
"oTableTools": {
"aButtons": ["xls"],
"sSwfPath": "../../Style Library/js/datatables/TableTools/media/swf/copy_csv_xls_pdf.swf",
},
"sSearch": "Filter",
"fnDrawCallback": function () {
//Add totals row
var Columns = $("#example > tbody").find("> tr:first > td").length;
$('#example tr:last').after('<tr><td class="total"></td><td class="total"></td><td class="total"></td><td class="total"></td><td class="total"></td><td class="total"></td><td class="total"></td><td class="total"></td><td class="total"></td><td class="total"></td><td class="total"></td><td class="total"></td><td class="total"></td><td class="total"></td></tr>');
//Formating the Total row number to no decimals
$("#example tr:last td:not(:first,:last)").text(function (i) {
var t = 0;
$(this).parent().prevAll().find("td:nth-child(" + (i + 2) + ")").each(function () {
t += parseFloat($(this).text().replace(/[\$,]/g, '') * 1);
});
return parseInt(t * 100, 10) / 100;
});
//Format the monthly expenditure and savings to currency formatFormating the currency
var cell = new Array();
cell[0] = $('#example tr:last td:nth-child(12)').text();
cell[1] = $('#example tr:last td:nth-child(13)').text();
$('#example tr:last').find('td:nth-child(12)').html(accounting.formatMoney(cell[0]));
$('#example tr:last').find('td:nth-child(13)').html(accounting.formatMoney(cell[1]));
$('#example tr:last').find('td:last').hide();
} //hides extra td that was showing
}); //End of Datatable()
}); //End of call.done function
$('#theTableDiv').slideDown();
} //end of run() function
我不是程序員,我只是想學習。 我將不勝感激任何幫助。 提前致謝
我猜你正在替換按鈕所在的頁面部分。 (你真的需要更整潔地格式化你的代碼......使用 JSFiddle.net 和他們的 TidyUp 按鈕)。
如果是這種情況,您需要使用委托的事件處理程序:
$(document).on('click', '.myButton', function () {
run()
});
它偵聽所需節點的靜態祖先,然后在事件發生時運行選擇器,然后將函數應用於導致事件的任何匹配元素。
如果您沒有方便的祖先,則document
是后備父級。 不要將“body”用於委托事件,因為它具有奇怪的行為。
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