Datatables回调函数中文

Posted 2020-08-24 生在新中国，长在红旗下

Datatables——回调函数
-------------------------------------------------

fnCookieCallback：还没有使用过
$(document).ready(function () {
    $(‘#example‘).dataTable({
        "fnCookieCallback": function (sName, oData, sExpires, sPath) {
            // Customise oData or sName or whatever else here
            return sName + "=" + JSON.stringify(oData) + "; expires=" + sExpires + "; path=" + sPath;
        }
    });
});

fnCreatedRow：顾名思义，创建行得时候的回调函数
$(document).ready(function () {
    $(‘#example‘).dataTable({
        "fnCreatedRow": function (nRow, aData, iDataIndex) {
            // 为a的话字体加粗
            if (aData[4] == "A") {
                $(‘td:eq(4)‘, nRow).html(‘<b>A</b>‘);
            }
        }
    });
});

fnDrawCallback：draw画 ，这个应该是重绘的回调函数
$(document).ready(function () {
    $(‘#example‘).dataTable({
        "fnDrawCallback": function (oSettings) {
            alert(‘DataTables 重绘了‘);
        }
    });
});
fnFooterCallback：底部的回调函数，这个可以用来做总计之类的功能
$(document).ready(function() {
    $(‘#example‘).dataTable({
        "fnFooterCallback": function(nFoot, aData, iStart, iEnd, aiDisplay) {
            nFoot.getElementsByTagName(‘th‘)[0].innerHTML = "Starting index is " + iStart;
        }
    });
});

fnFormatNumber：顾名思义，格式化数字的显示方式
$(document).ready(function () {
    $(‘#example‘).dataTable({
        "fnFormatNumber": function (iIn) {
            if (iIn < 1000) {
                return iIn;
            } else {
                var s = (iIn + ""),
                a = s.split(""), out = "",
                iLen = s.length;
                for (var i = 0; i < iLen; i++) {
                    if (i % 3 === 0 && i !== 0) {
                        out = "‘" + out;
                    }
                    out = a[iLen - i - 1] + out;
                }
            }
            return out;
        }
    });
});

fnHeaderCallback：表头的回调函数
$(document).ready(function () {
    $(‘#example‘).dataTable({
        "fnHeaderCallback": function (nHead, aData, iStart, iEnd, aiDisplay) {
            nHead.getElementsByTagName(‘th‘)[0].innerHTML = "Displaying " + (iEnd - iStart) + " records";
        }
    });
});

fnInfoCallback：datatables信息的回调函数
$(‘#example‘).dataTable({
    "fnInfoCallback": function (oSettings, iStart, iEnd, iMax, iTotal, sPre) {
        return iStart + " to " + iEnd;
    }
});

fnInitComplete：datatables初始化完毕后会调用这个方法
$(document).ready(function () {
    $(‘#example‘).dataTable({
        "fnInitComplete": function (oSettings, json) {
            alert(‘DataTables has finished its initialisation.‘);
        }
    });
});

fnPreDrawCallback：每一次绘datatables时候调用的方法
$(document).ready(function () {
    $(‘#example‘).dataTable({
        "fnPreDrawCallback": function (oSettings) {
            if ($(‘#test‘).val() == 1) {
                return false;
            }
        }
    });
});

fnRowCallback：行的回调函数
$(document).ready(function () {
    $(‘#example‘).dataTable({
        "fnRowCallback": function (nRow, aData, iDisplayIndex, iDisplayIndexFull) {
            // Bold the grade for all ‘A‘ grade browsers
            if (aData[4] == "A") {
                $(‘td:eq(4)‘, nRow).html(‘<b>A</b>‘);
            }
        }
    });
});

fnServerData：这个是结合服务器模式的回调函数，用来处理服务器返回过来的数据
// POST data to server
$(document).ready(function () {
    $(‘#example‘).dataTable({
        "bProcessing": true,
        "bServerSide": true,
        "sAjaxSource": "xhr.php",
        "fnServerData": function (sSource, aoData, fnCallback, oSettings) {
            oSettings.jqXHR = $.ajax({
                "dataType": ‘json‘,
                "type": "POST",
                "url": sSource,
                "data": aoData,
                "success": fnCallback
            });
        }
    });
});

fnServerParams：向服务器传额外的参数
$(document).ready(function () {
    $(‘#example‘).dataTable({
        "bProcessing": true,
        "bServerSide": true,
        "sAjaxSource": "scripts/server_processing.php",
        "fnServerParams": function (aoData) {
            aoData.push({ "name": "more_data", "value": "my_value" });
        }
    });
});

fnStateLoad：读取状态的回调函数
$(document).ready(function () {
    $(‘#example‘).dataTable({
        "bStateSave": true,
        "fnStateLoad": function (oSettings) {
            var o;
            // Send an Ajax request to the server to get the data. Note that
            // this is a synchronous request.
            $.ajax({
                "url": "/state_load",
                "async": false,
                "dataType": "json",
                "success": function (json) {
                    o = json;
                }
            });
            return o;
        }
    });
});

fnStateLoadParams：和上面的不知道什么区别，没用过
// Remove a saved filter, so filtering is never loaded
$(document).ready(function () {
    $(‘#example‘).dataTable({
        "bStateSave": true,
        "fnStateLoadParams": function (oSettings, oData) {
            oData.oSearch.sSearch = "";
        }
    });
});

// Disallow state loading by returning false
$(document).ready(function () {
    $(‘#example‘).dataTable({
        "bStateSave": true,
        "fnStateLoadParams": function (oSettings, oData) {
            return false;
        }
    });
});

fnStateLoaded：又是这个，加了ed 不知道意思没用过
// Show an alert with the filtering value that was saved
$(document).ready(function () {
    $(‘#example‘).dataTable({
        "bStateSave": true,
        "fnStateLoaded": function (oSettings, oData) {
            alert(‘Saved filter was: ‘ + oData.oSearch.sSearch);
        }
    });
});

fnStateSave：状态储存
$(document).ready( function() {
    $(‘#example‘).dataTable({
        "bStateSave": true,
        "fnStateSave": function(oSettings, oData) {
// Send an Ajax request to the server with the state object
            $.ajax({
                "url": "/state_save",
                "data": oData,
                "dataType": "json",
                "method": "POST"
                "success": function () {
            }
        });
    };
});
});

fnStateSaveParams ：状态储存参数，没用过，不明白
// Remove a saved filter, so filtering is never saved
$(document).ready(function () {
    $(‘#example‘).dataTable({
        "bStateSave": true,
        "fnStateSaveParams": function (oSettings, oData) {
            oData.oSearch.sSearch = "";
        }
    });
});