change log
- 数字不以科学计数法展示
- 样式问题修复
- getRows获取数据如果对应行有formatter方法则调用，与页面展示一致
/**
* DataGrid Export for jQuery EasyUI
* version: 1.0.3
*/
(function($){
function getRows(target){
// var state = $(target).data('datagrid');
// if (state.filterSource){
// return state.filterSource.rows;
// } else {
// return state.data.rows;
// }
const columns = $(target).datagrid('options').columns[0];
const rows = $(target).datagrid('getRows');
rows.map(row => {
columns.forEach(column => {
if (column.formatter) {
// 有formatter就调用进行展示数据的格式化
row[column.field] = column.formatter(row[column.field], row);
}
});
return row;
});
return rows;
}
function getFooterRows(target){
var state = $(target).data('datagrid');
return state.data.footer || [];
}
function toHtml(target, rows, footer, caption, fields){
rows = rows || getRows(target);
rows = rows.concat(footer||getFooterRows(target));
var dg = $(target);
//此处style="vnd.ms-excel.numberformat:@ ;'为强制输出文本，避免科学计数法显示长数字。
var data = ['<table border="1" rull="all" style="vnd.ms-excel.numberformat:@ ;border-collapse:collapse">'];
var fields = fields || dg.datagrid('getColumnFields',true).concat(dg.datagrid('getColumnFields',false));
var trStyle = 'height:20px';
var tdStyle0 = 'vertical-align:middle;padding:0 4px';
if (caption){
data.push('<caption>'+caption+'</caption>');
}
//首行设置
data.push('<tr style="'+trStyle+'">');
for(var i=0; i<fields.length; i++){
var col = dg.datagrid('getColumnOption', fields[i]);
var tdStyle = tdStyle0 + ';width:'+col.boxWidth+'px';
tdStyle += '; text-align:'+(col.halign||col.align||' ');
data.push('<td style="'+tdStyle+'">'+col.title+'</td>');
}
data.push('</tr>');
//数据行设置
$.map(rows, function(row){
data.push('<tr style="'+trStyle+'">');
for(var i=0; i<fields.length; i++){
var field = fields[i];
var col = dg.datagrid('getColumnOption', field);
var value = row[field];
if (value == undefined){
value = '';
}
var tdStyle = tdStyle0;
tdStyle += '; text-align:'+(col.align||'; ');
data.push(
'<td style="'+tdStyle+'">'+value+'</td>'
);
}
data.push('</tr>');
});
data.push('</table>');
return data.join('');
}
function toArray(target, rows, footer, fields){
rows = rows || getRows(target);
rows = rows.concat(footer||getFooterRows(target));
var dg = $(target);
var fields = fields || dg.datagrid('getColumnFields',true).concat(dg.datagrid('getColumnFields',false));
var data = [];
var r = [];
for(var i=0; i<fields.length; i++){
var col = dg.datagrid('getColumnOption', fields[i]);
r.push(col.title);
}
data.push(r);
$.map(rows, function(row){
var r = [];
for(var i=0; i<fields.length; i++){
r.push(row[fields[i]]);
}
data.push(r);
});
return data;
}
function print(target, param){
var title = null;
var rows = null;
var footer = null;
var caption = null;
var fields = null;
if (typeof param == 'string'){
title = param;
} else {
title = param['title'];
rows = param['rows'];
footer = param['footer'];
caption = param['caption'];
fields = param['fields'];
}
var newWindow = window.open('', '', 'width=800, height=500');
var document = newWindow.document.open();
var content =
'<!doctype html>' +
'<html>' +
'<head>' +
'<meta charset="utf-8">' +
'<title>'+title+'</title>' +
'</head>' +
'<body>' + toHtml(target, rows, footer, caption, fields) + '</body>' +
'</html>';
document.write(content);
document.close();
newWindow.print();
}
function b64toBlob(data){
var sliceSize = 512;
var chars = atob(data);
var byteArrays = [];
for(var offset=0; offset<chars.length; offset+=sliceSize){
var slice = chars.slice(offset, offset+sliceSize);
var byteNumbers = new Array(slice.length);
for(var i=0; i<slice.length; i++){
byteNumbers[i] = slice.charCodeAt(i);
}
var byteArray = new Uint8Array(byteNumbers);
byteArrays.push(byteArray);
}
return new Blob(byteArrays, {
type: ''
});
}
function toExcel(target, param){
var filename = null;
var rows = null;
var footer = null;
var caption = null;
var fields = null;
var worksheet = 'Worksheet';
if (typeof param == 'string'){
filename = param;
} else {
filename = param['filename'];
rows = param['rows'];
footer = param['footer'];
caption = param['caption'];
fields = param['fields'];
worksheet = param['worksheet'] || 'Worksheet';
}
var dg = $(target);
var uri = 'data:application/vnd.ms-excel;base64,'
, template = '<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><meta http-equiv="content-type" content="application/vnd.ms-excel; charset=UTF-8"><head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body>{table}</body></html>'
, base64 = function (s) { return window.btoa(unescape(encodeURIComponent(s))) }
, format = function (s, c) { return s.replace(/{(\w+)}/g, function (m, p) { return c[p]; }) }
var table = toHtml(target, rows, footer, caption, fields);
var ctx = { worksheet: worksheet, table: table };
var data = base64(format(template, ctx));
if (window.navigator.msSaveBlob){
var blob = b64toBlob(data);
window.navigator.msSaveBlob(blob, filename);
} else {
var alink = $('<a style="display:none"></a>').appendTo('body');
alink[0].href = uri + data;
alink[0].download = filename;
alink[0].click();
alink.remove();
}
}
function toCsv(target, param){
var filename = null;
var rows = null;
var footer = null;
var fields = null;
if (typeof param == 'string'){
filename = param;
} else {
filename = param['filename'];
rows = param['rows'];
footer = param['footer'];
fields = param['fields'];
}
var arrayData = toArray(target, rows, footer, fields);
var csv = $.map(arrayData, function(row){
return row.join(',');
}).join("\r\n");
var data = window.btoa(unescape(encodeURIComponent(csv)));
if (window.navigator.msSaveBlob){
var blob = b64toBlob(data);
window.navigator.msSaveBlob(blob, filename);
} else {
var uri = 'data:text/csv;charset=utf-8;base64,';
var alink = $('<a style="display:none"></a>').appendTo('body');
alink[0].href = uri + data;
alink[0].download = filename;
alink[0].click();
alink.remove();
}
}
$.extend($.fn.datagrid.methods, {
toHtml: function(jq, rows){
return toHtml(jq[0], rows);
},
toArray: function(jq, rows){
return toArray(jq[0], rows);
},
toExcel: function(jq, param){
return jq.each(function(){
toExcel(this, param);
});
},
toCsv: function(jq, param){
return jq.each(function(){
toCsv(this, param);
});
},
print: function(jq, param){
return jq.each(function(){
print(this, param);
});
}
});
})(jQuery);