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                # jQuery EasyUI 應用 - 創建 CRUD 數據網格(DataGrid) 在上一章節中,我們使用對話框(dialog)組件創建了 CRUD 應用來創建和編輯用戶信息。本教程我們將告訴您如何創建一個 CRUD 數據網格(DataGrid)。 我們將使用 [可編輯的數據網格(DataGrid)插件](ext-edatagrid.html) 來完成這些 CRUD 操作動作。 ![](https://box.kancloud.cn/2015-12-18_567386802d0ec.png) #### 步驟 1:在 HTML 標簽中定義數據網格(DataGrid) ``` <table id="dg" title="My Users" style="width:550px;height:250px" toolbar="#toolbar" idField="id" rownumbers="true" fitColumns="true" singleSelect="true"> <thead> <tr> <th field="firstname" width="50" editor="{type:'validatebox',options:{required:true}}">First Name</th> <th field="lastname" width="50" editor="{type:'validatebox',options:{required:true}}">Last Name</th> <th field="phone" width="50" editor="text">Phone</th> <th field="email" width="50" editor="{type:'validatebox',options:{validType:'email'}}">Email</th> </tr> </thead> </table> <div id="toolbar"> <a href="#" class="easyui-linkbutton" iconCls="icon-add" plain="true" onclick="javascript:$('#dg').edatagrid('addRow')">New</a> <a href="#" class="easyui-linkbutton" iconCls="icon-remove" plain="true" onclick="javascript:$('#dg').edatagrid('destroyRow')">Destroy</a> <a href="#" class="easyui-linkbutton" iconCls="icon-save" plain="true" onclick="javascript:$('#dg').edatagrid('saveRow')">Save</a> <a href="#" class="easyui-linkbutton" iconCls="icon-undo" plain="true" onclick="javascript:$('#dg').edatagrid('cancelRow')">Cancel</a> </div> ``` #### 步驟 2:使用可編輯的數據網格(DataGrid) ``` $('#dg').edatagrid({ url: 'get_users.php', saveUrl: 'save_user.php', updateUrl: 'update_user.php', destroyUrl: 'destroy_user.php' }); ``` 我們應該提供 'url'、'saveUrl'、'updateUrl' 和 'destroyUrl' 屬性來編輯數據網格(DataGrid): * url:從服務器端檢索用戶數據。 * saveUrl:保存一個新的用戶數據。 * updateUrl:更新一個已存在的用戶數據。 * destroyUrl:刪除一個已存在的用戶數據。 #### 步驟 3:寫服務器處理代碼 保存一個新的用戶(save_user.php): ``` $firstname = $_REQUEST['firstname']; $lastname = $_REQUEST['lastname']; $phone = $_REQUEST['phone']; $email = $_REQUEST['email']; include 'conn.php'; $sql = "insert into users(firstname,lastname,phone,email) values('$firstname','$lastname','$phone','$email')"; @mysql_query($sql); echo json_encode(array( 'id' => mysql_insert_id(), 'firstname' => $firstname, 'lastname' => $lastname, 'phone' => $phone, 'email' => $email )); ``` 更新一個已存在用戶(update_user.php): ``` $id = intval($_REQUEST['id']); $firstname = $_REQUEST['firstname']; $lastname = $_REQUEST['lastname']; $phone = $_REQUEST['phone']; $email = $_REQUEST['email']; include 'conn.php'; $sql="update users set firstname='$firstname',lastname='$lastname',phone='$phone',email='$email' where id=$id"; @mysql_query($sql); echo json_encode(array( 'id' => $id, 'firstname' => $firstname, 'lastname' => $lastname, 'phone' => $phone, 'email' => $email )); ``` 刪除一個已存在用戶(destroy_user.php): ``` $id = intval($_REQUEST['id']); include 'conn.php'; $sql = "delete from users where id=$id"; @mysql_query($sql); echo json_encode(array('success'=>true)); ``` ## 下載 jQuery EasyUI 實例 [jeasyui-app-crud2.zip](/try/jeasyui/download/jeasyui-app-crud2.zip)
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