easyui学习笔记3—在展开行内的增删改操作

    <link rel="stylesheet" href="jquery-easyui-1.3.5/themes/default/easyui.css" />
    <link rel="stylesheet" href="jquery-easyui-1.3.5/themes/icon.css" />
    <link rel="stylesheet" href="jquery-easyui-1.3.5/demo/demo.css"/>
    <script type="text/javascript" src="jquery-easyui-1.3.5/jquery-1.10.2.min.js"></script>
    <script type="text/javascript" src="jquery-easyui-1.3.5/jquery.easyui.min.js"></script>
    <script type="text/javascript" src="jquery-easyui-1.3.5/plugins/datagrid-detailview.js"></script>

    <table id="dg" title="My User" style="width:700px;height:250px" 
    url="get_users.php" toolbar="#toolbar" pagination="true" fitColumns="true" singleSelect="true">
        <thead>
            <tr>
                <th field="firstname" width="50">First Name</th>
                <th field="lastname" width="50">Last Name</th>
                <th field="phone" width="50">Phone</th>
                <th field="email" width="50">Email</th>
            </tr>
        </thead>
    </table>
    <div id="toolbar">
        <a href="javascript:void(0)" class="easyui-linkbutton" iconCls="icon-add" plain="true" onclick="newItem()">New</a>
        <a href="javascript:void(0)" class="easyui-linkbutton" iconCls="icon-remove" plain="true" onclick="destroyItem()">Destory</a>
    </div>

    <script type="text/javascript"> 
    //创建一个匿名方法并立即执行
    $(function(){
        $("#dg").datagrid({
            view:detailview,
            detailFormatter:function(index,row){  //返回一个空的div，展开行的时候将展开内容放到这个div中
                return "<div class='ddv'></div>";
            },
            onExpandRow:function(index,row){
                var ddv = $(this).datagrid('getRowDetail',index).find('div.ddv'); //在这一行中找到class="ddv"的div
                ddv.panel({                                         
                    border:false,
                    cache:true,
                    href:'show_form.php?index='+index,      //展开行访问的路径及传递的参数
                    onLoad:function(){
                        $("#dg").datagrid('fixDetailRowHeight',index);//固定高度
                        $('#dg').datagrid('selectRow',index);
                        $('#dg').datagrid('getRowDetail',index).find('form').form('load',row);  //将行的数据加载，这里可能要把列名和show_form.php文件中的name对应起来
                    }
                });
                $('#db').datagrid('fixDetailRowHeight',index);//加载之后固定高度
            }
        });
    });
    
    //保存
    function saveItem(index){
        var row = $("#dg").datagrid('getRows')[index]; //找到当前行
        var url = row.isNewRecord?'save_user.php':'update_user.php?id='+row.id;//根据条件设置访问url
        $('#dg').datagrid('getRowDetail',index).find('form').form('submit',{ //发送数据
            url:url,
            onSubmit:function(){
                return $(this).form('validate'); //发送请求数据之前验证
            },
            success:function(data){
                data = eval('('+data+')');
                data.isNewRecord = false;
                $('#dg').datagrid('collapseRow',index); //收缩
                $('#dg').datagrid('updateRow',{         //用请求数据更新编辑的哪一行的数据
                    index:index,
                    row:data
                });
            }
        })
    }
    
    //取消
    function cancelItem(index){
        var row = $('#dg').datagrid('getRows')[index];
        if(row.isNewRecord){                      //如果是新增直接删除这一行，包括展开内容，否则是更新则收缩
            $('#dg').datagrid('deleteRow',index);
        }
        else{
            $('#dg').datagrid('collapseRow',index);
        }
    }
    
    //删除
    function destroyItem(){
        var row = $('#dg').datagrid('getSelected');
        if(row){
            $.messager.confirm('Confirm','Are you sure you want to remove this user?',function(r){
                if(r){
                    var index = $('#dg').datagrid('getRowIndex',row); //为destory_user.php传递参数id
                    $.post('destory_user.php',{id:row.id},function(){
                        $('#dg').datagrid('deleteRow',index);
                    });
                    
                }
            });
        }
    }
    
    //点击新加
    function newItem(index){
        $('#dg').datagrid('appendRow',{isNewRecord:true});
        var index = $('#dg').datagrid('getRows').length-1;
        $('#dg').datagrid('expandRow',index);
        $('#dg').datagrid('selecteRow',index);
    }
    </script>

<form method="post">
    <table class="dv-table" style="width:100%;border:1px solid #ccc;background:#fafafa;padding:5px;margin-top:5px;">
        <tr>
            <td>First Name</td>
            <td><input name="firstname" class="easyui-validatebox" required="true"></input></td>
            <td>Last Name</td>
            <td><input name="lastname" class="easyui-validatebox" required="true"></input></td>
        </tr>
        <tr>
            <td>Phone</td>
            <td><input name="phone"></input></td>
            <td>Email</td>
            <td><input name="email" class="easyui-validatebox" validType="email"></input></td>
        </tr>
    </table>
    <div style="padding:5px 0;text-align:right;padding-right:30px">
        <a href="#" class="easyui-linkbutton" iconCls="icon-save" plain="true" onclick="saveItem(<?php echo $_REQUEST['index'];?>)">Save</a>
        <a href="#" class="easyui-linkbutton" iconCls="icon-cancel" plain="true" onclick="cancelItem(<?php echo $_REQUEST['index'];?>)">Cancel</a>
    </div>
</form>