2013-02-12 105 views
1

我试图使用没有成功的JqGrid。我读过this wiki post at trirand,并且我完成了该页面上的所有步骤。Jqgrid不加载XML数据

我使用,我已经搜查,但我一直有同样的错误等exaples尝试。我真的不知道为什么,这很令人沮丧。

当我查看HTML,表(MySQL的)不显示。这就像我的代码不接受来自PHP代码的XML数据。我正在使用Appserv。

HTML代码(myfirstgrid.html):

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> 
    <head> 
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
     <title>My First Grid</title> 
     <link rel="stylesheet" type="text/css" media="screen" href="css/ui-lightness/jquery-ui-1.8.2.custom.css" /> 
     <link rel="stylesheet" type="text/css" media="screen" href="css/ui.jqgrid.css" /> 

     <style type="text/css"> 
      html, body { 
       margin: 0; 
       padding: 0; 
       font-size: 75%; 
      } 
     </style> 

     <script src="/jquery-1.7.2.min.js" type="text/javascript"></script> 
     <script src="/i18n/grid.locale-en.js" type="text/javascript"></script> 
     <script src="/jquery.jqGrid.min.js" type="text/javascript"></script> 

     <script type="text/javascript"> 
     $(function(){ 
      $("#list").jqGrid({ 
       url:'example.php', 
       datatype: 'xml', 
       mtype: 'GET', 
       colNames:['Inv No','Date', 'Amount','Tax','Total','Notes'], 
       colModel :[ 
        {name:'invid', index:'invid', width:55}, 
        {name:'invdate', index:'invdate', width:90}, 
        {name:'amount', index:'amount', width:80, align:'right'}, 
        {name:'tax', index:'tax', width:80, align:'right'}, 
        {name:'total', index:'total', width:80, align:'right'}, 
        {name:'note', index:'note', width:150, sortable:false} 
       ], 
       pager: '#pager', 
       rowNum:10, 
       rowList:[10,20,30], 
       sortname: 'invid', 
       sortorder: 'desc', 
       viewrecords: true, 
       gridview: true, 
       caption: 'My first grid' 
      }); 
     }); 
     </script> 
    </head> 
    <body> 
     <table id="list"><tr><td/></tr></table> 
     <div id="pager"></div> 
    </body> 
</html> 

PHP脚本(使用example.php):

<?php 
    include ("conexion.php"); 

    $page = 1; 
    $limit = 10; 
    $sidx = 'tax'; 
    $sord = 'asc'; 

    $result = mysql_query("SELECT COUNT(*) AS count FROM invheader"); 
    $row = mysql_fetch_array($result,MYSQL_ASSOC); 
    $count = $row['count']; 

    if($count > 0 && $limit > 0) { 
     $total_pages = ceil($count/$limit); 
    } else { 
     $total_pages = 0; 
    } 

    if ($page > $total_pages) $page=$total_pages; 

    $start = $limit*$page - $limit; 

    // if for some reasons start position is negative set it to 0 
    // typical case is that the user type 0 for the requested page 
    if($start <0) $start = 0; 

    // the actual query for the grid data 
    $SQL = "SELECT invid, invdate, amount, tax,total, note FROM invheader ORDER BY $sidx $sord LIMIT $start , $limit"; 
    $result = mysql_query($SQL) or die("Couldn't execute query.".mysql_error()); 

    // we should set the appropriate header information. Do not forget this. 
    //header("Content-type: text/xml;charset=utf-8"); 

    $s = "<?xml version='1.0' encoding='utf-8'?>"; 
    $s .= "<rows>"; 
    $s .= "<page>".$page."</page>"; 
    $s .= "<total>".$total_pages."</total>"; 
    $s .= "<records>".$count."</records>"; 

    // be sure to put text data in CDATA 
    while($row = mysql_fetch_array($result,MYSQL_ASSOC)) 
    { 
     $s .= "<row id='". $row['invid']."'>"; 
     $s .= "<cell>". $row['invid']."</cell>"; 
     $s .= "<cell>". $row['invdate']."</cell>"; 
     $s .= "<cell>". $row['amount']."</cell>"; 
     $s .= "<cell>". $row['tax']."</cell>"; 
     $s .= "<cell>". $row['total']."</cell>"; 
     $s .= "<cell><![CDATA[". $row['note']."]]></cell>"; 
     $s .= "</row>"; 
    } 
    $s .= "</rows>"; 

    echo $s; 
?> 

这是来自日PHP脚本的XML结果(在XML被缩进为了提高可读性的服务器,而无需换行返回XML):

<?xml version='1.0' encoding='utf-8'?> 
<rows> 
    <page>1</page> 
    <total>1</total> 
    <records>3</records> 
    <row id='1'> 
     <cell>1</cell> 
     <cell>0000-00-00</cell> 
     <cell>0.00</cell> 
     <cell>0.00</cell> 
     <cell>0.00</cell> 
     <cell><![CDATA[note]]></cell> 
    </row> 
    <row id='2'> 
     <cell>2</cell> 
     <cell>2001-01-10</cell> 
     <cell>103.00</cell> 
     <cell>45.00</cell> 
     <cell>149.00</cell> 
     <cell><![CDATA[This is record 1]]></cell> 
    </row> 
    <row id='3'> 
     <cell>3</cell> 
     <cell>2001-02-10</cell> 
     <cell>104.00</cell> 
     <cell>46.00</cell> 
     <cell>151.00</cell> 
     <cell><! [CDATA[This is record 2]]></cell> 
    </row> 
</rows> 

这是我的问题:

  1. 为什么不在HTML显示我的数据?
  2. 如果问题是XML数据,什么是检查XML是否有效的最好方法?

回答

2

好吧,林找到了解决办法。我广泛修改了我的代码。

问题是这样的:

include ("conexion.php"); 

出于某种原因,如果你有其他文件这个文件在这部分所发送的报头中的标头前引黄参数:

header("Content-type: text/xml;charset=utf-8"); 

所以你需要在你的网格php文档中设置这个参数,并确保你发送了这一行的标题。

就是这样......

因此,许多人都有这样的疑问,也许问题这是该解决方案。