EasyUI的DataGrid 打印导出
一直在Winform和WPF的项目，偶尔接触Web都是网上下个模板修修改改就成了，学习的不太深入。
今日遇到一个打印导出datagrid的问题，做桌面项目的打印导出通常我都是直接将数据源拿过来放到我的打印导出模块直接就出来了，但是在web上没有积累，特别是用了EasyUI的DataGrid,一时不知道如何是好。
遂度娘一翻找到如下解决方案：
1.打印部分
新增print.js
// strPrintName 打印任务名
// printDatagrid 要打印的datagrid
function CreateFormPage(strPrintName, printDatagrid) {
var tableString = '<table cellspacing="0" class="pb">';
var frozenColumns = printDatagrid.datagrid("options").frozenColumns; // 得到frozenColumns对象
var columns = printDatagrid.datagrid("options").columns; // 得到columns对象
var nameList = '';
// 载入title
if (typeof columns != 'undefined' && columns != '') {
$(columns).each(function (index) {
tableString += '
<tr>';
if (typeof frozenColumns != 'undefined' && typeof frozenColumns[index] != 'undefined') {
for (var i = 0; i < frozenColumns[index].length; ++i) {
if (!frozenColumns[index][i].hidden) {
tableString += '
<th width="' + frozenColumns[index][i].width + '"';
if (typeof frozenColumns[index][i].rowspan != 'undefined' && frozenColumns[index][i].rowspan > 1) {
tableString += ' rowspan="' + frozenColumns[index][i].rowspan + '"';
}
if (typeof frozenColumns[index][i].colspan != 'undefined' && frozenColumns[index][i].colspan > 1) {
tableString += ' colspan="' + frozenColumns[index][i].colspan + '"';
}
if (typeof frozenColumns[index][i].field != 'undefined' && frozenColumns[index][i].field != '') {
nameList += ',{"f":"' + frozenColumns[index][i].field + '", "a":"' + frozenColumns[index][i].align + '"}';
}
tableString += '>' + frozenColumns[0][i].title + '</th>';
}
}
}
for (var i = 0; i < columns[index].length; ++i) {
if (!columns[index][i].hidden) {
tableString += '
<th width="' + columns[index][i].width + '"';
if (typeof columns[index][i].rowspan != 'undefined' && columns[index][i].rowspan > 1) {
tableString += ' rowspan="' + columns[index][i].rowspan + '"';
}
if (typeof columns[index][i].colspan != 'undefined' && columns[index][i].colspan > 1) {
tableString += ' colspan="' + columns[index][i].colspan + '"';
}
if (typeof columns[index][i].field != 'undefined' && columns[index][i].field != '') {
nameList += ',{"f":"' + columns[index][i].field + '", "a":"' + columns[index][i].align + '"}';
}
tableString += '>' + columns[index][i].title + '</th>';
}
}
tableString += '
</tr>';
});
}
// 载入内容
var rows = printDatagrid.datagrid("getRows"); // 这段代码是获取当前页的所有行
var nl = eval('([' + nameList.substring(1) + '])');
for (var i = 0; i < rows.length; ++i) {
tableString += '
<tr>';
$(nl).each(function (j) {
var e = nl[j].f.lastIndexOf('_0');
tableString += '
<td';
if (nl[j].a != 'undefined' && nl[j].a != '') {
tableString += ' style="text-align:' + nl[j].a + ';"';
}
tableString += '>';
if (e + 2 == nl[j].f.length) {
tableString += rows[i][nl[j].f.substring(0, e)];
}
else
tableString += rows[i][nl[j].f];
tableString += '</td>';
});
tableString += '
</tr>';
}
tableString += '
</table>';
window.showModalDialog("print.htm", tableString,
"location:No;status:No;help:No;dialogWidth:800px;dialogHeight:600px;scroll:auto;");
}
新增print.htm
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>数据打印</title>
<style type="text/css">
body{background:white;margin:0px;padding:0px;font-size:13px;text-align:left;}
.pb{font-size:13px;border-collapse:collapse;}
.pb th{font-weight:bold;text-align:center;border:1px solid #333333;padding:2px;}
.pb td{border:1px solid #333333;padding:2px;}
</style>
</head>
<body>
<script type="text/javascript">
document.write(window.dialogArguments);
window.print();
</script>
</body>
</html>
页面引用print.js并调用
CreateFormPage("datagrid",$("#dg"));
2.导出部分
新增export.js
function ChangeToTable(printDatagrid) {
var tableString = '<table cellspacing="0" class="pb">';
var frozenColumns = printDatagrid.datagrid("options").frozenColumns; // 得到frozenColumns对象
var columns = printDatagrid.datagrid("options").columns; // 得到columns对象
var nameList = new Array();
// 载入title
if (typeof columns != 'undefined' && columns != '') {
$(columns).each(function (index) {
tableString += '
<tr>';
if (typeof frozenColumns != 'undefined' && typeof frozenColumns[index] != 'undefined') {
for (var i = 0; i < frozenColumns[index].length; ++i) {
if (!frozenColumns[index][i].hidden) {
tableString += '
<th width="' + frozenColumns[index][i].width + '"';
if (typeof frozenColumns[index][i].rowspan != 'undefined' && frozenColumns[index][i].rowspan > 1) {
tableString += ' rowspan="' + frozenColumns[index][i].rowspan + '"';
}
if (typeof frozenColumns[index][i].colspan != 'undefined' && frozenColumns[index][i].colspan > 1) {
tableString += ' colspan="' + frozenColumns[index][i].colspan + '"';
}
if (typeof frozenColumns[index][i].field != 'undefined' && frozenColumns[index][i].field != '') {
nameList.push(frozenColumns[index][i]);
}
tableString += '>' + frozenColumns[0][i].title + '</th>';
}
}
}
for (var i = 0; i < columns[index].length; ++i) {
if (!columns[index][i].hidden) {
tableString += '
<th width="' + columns[index][i].width + '"';
if (typeof columns[index][i].rowspan != 'undefined' && columns[index][i].rowspan > 1) {
tableString += ' rowspan="' + columns[index][i].rowspan + '"';
}
if (typeof columns[index][i].colspan != 'undefined' && columns[index][i].colspan > 1) {
tableString += ' colspan="' + columns[index][i].colspan + '"';
}
if (typeof columns[index][i].field != 'undefined' && columns[index][i].field != '') {
nameList.push(columns[index][i]);
}
tableString += '>' + columns[index][i].title + '</th>';
}
}
tableString += '
</tr>';
});
}
// 载入内容
var rows = printDatagrid.datagrid("getRows"); // 这段代码是获取当前页的所有行
for (var i = 0; i < rows.length; ++i) {
tableString += '
<tr>';
for (var j = 0; j < nameList.length; ++j) {
var e = nameList[j].field.lastIndexOf('_0');
tableString += '
<td';
if (nameList[j].align != 'undefined' && nameList[j].align != '') {
tableString += ' style="text-align:' + nameList[j].align + ';"';
}
tableString += '>';
if (e + 2 == nameList[j].field.length) {
tableString += rows[i][nameList[j].field.substring(0, e)];
}
else
tableString += rows[i][nameList[j].field];
tableString += '</td>';
}
tableString += '
</tr>';
}
tableString += '
</table>';
return tableString;
}
function Export(strXlsName, exportGrid) {
var f = $('<form action="export.aspx" method="post" id="fm1"></form>');
var i = $('<input type="hidden" id="txtContent" name="txtContent" />');
var l = $('<input type="hidden" id="txtName" name="txtName" />');
i.val(ChangeToTable(exportGrid));
i.appendTo(f);
l.val(strXlsName);
l.appendTo(f);
f.appendTo(document.body).submit();
try{
document.body.removeChild(f);}catch(e){}
}
新增export.aspx后台
protected void Page_Load(object sender, EventArgs e)
{
Response.Clear();
Response.Buffer = true;
Response.Charset = "utf-8";
Response.ContentEncoding = System.Text.Encoding.UTF8;
Response.AppendHeader("content-disposition", "attachment;filename="" + HttpUtility.HtmlEncode(Request["txtName"] ?? DateTime.Now.ToString("yyyyMMdd")) + ".xls"");
Response.ContentType = "Application/ms-excel";
Response.Write("<html>
<head>
");
Response.Write("<style type="text/css">
.pb{font-size:13px;border-collapse:collapse;} " +
"
.pb th{font-weight:bold;text-align:center;border:0.5pt solid windowtext;padding:2px;} " +
"
.pb td{border:0.5pt solid windowtext;padding:2px;}
</style>
</head>
");
Response.Write("<body>
" + Request["txtContent"] + "
</body>
</html>");
Response.Flush();
Response.End();
}
export.aspx前台仅保留
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="export.aspx.cs" Inherits="export" %>
页面引用export.js并调用
Export('outputexcel', $('#dg'));