使用easyUI添加查询功能在datagrid

@author  YHC

在这个示例中我们将向你展示如何从数据库得到数据显示他们到datagrid,然后演示如何根据用户输入的搜索关键词搜寻显示结果.



查看 Demo

创建 DataGrid

创建 datagrid和分页功能然后添加工具栏到其中.

<table id="tt" class="easyui-datagrid" style="width:600px;height:250px"
url="datagrid24_getdata.php" toolbar="#tb"
title="Load Data" iconCls="icon-save"
rownumbers="true" pagination="true">
<thead>
<tr>
<th field="itemid" width="80">Item ID</th>
<th field="productid" width="80">Product ID</th>
<th field="listprice" width="80" align="right">List Price</th>
<th field="unitcost" width="80" align="right">Unit Cost</th>
<th field="attr1" width="150">Attribute</th>
<th field="status" width="60" align="center">Stauts</th>
</tr>
</thead>
</table>

工具栏定义如下:
<div id="tb" style="padding:3px">
<span>Item ID:</span>
<input id="itemid" style="line-height:26px;border:1px solid #ccc">
<span>Product ID:</span>
<input id="productid" style="line-height:26px;border:1px solid #ccc">
<a href="#" class="easyui-linkbutton" plain="true" onclick="doSearch()">Search</a>
</div> 当用户输入查询值和按下查询按钮'doSearch'函数将被调用.
function doSearch(){
$('#tt').datagrid('load',{
itemid: $('#itemid').val(),
productid: $('#productid').val()
});
} 以上代码我们调用了load方法去加载新的datagrid数据,我们需要传入itemid和productid参数到服务器:

服务器端代码

include 'conn.php';

$page = isset($_POST['page']) ? intval($_POST['page']) : 1;
$rows = isset($_POST['rows']) ? intval($_POST['rows']) : 10;
$itemid = isset($_POST['itemid']) ? mysql_real_escape_string($_POST['itemid']) : '';
$productid = isset($_POST['productid']) ? mysql_real_escape_string($_POST['productid']) : '';

$offset = ($page-1)*$rows;

$result = array();

$where = "itemid like '$itemid%' and productid like '$productid%'";
$rs = mysql_query("select count(*) from item where " . $where);
$row = mysql_fetch_row($rs);
$result["total"] = $row[0];

$rs = mysql_query("select * from item where " . $where . " limit $offset,$rows");

$items = array();
while($row = mysql_fetch_object($rs)){
array_push($items, $row);
}
$result["rows"] = $items;

echo json_encode($result);

下载 EasyUI 示例代码:

easyui-datagrid-demo.zip