我有一个应用程序,用户从服务器端选择一个选项来获取网格数据,并且取决于用户选择的选项,网格数据中的列数可能会有所不同。我使用Angularjs和ng-grid来显示数据。第一次,它工作正常,它显示正确的列数(例如2列)。但是当用户选择其他选项时,它会获得3列网格数据,ng-grid仍然会考虑旧列信息,并尝试将旧的2列的第二个3列网格数据进行映射。由于列信息不可用,我无法在控制器中使用columnDefs。如何刷新网格列。
注意:我试图把代码放在jsFiddle( http://jsfiddle.net/User888/pwUeX/11/),但不知何故,我无法运行它。我的完整代码在这里。
注意:我试图把代码放在jsFiddle( http://jsfiddle.net/User888/pwUeX/11/),但不知何故,我无法运行它。我的完整代码在这里。
另外:如何在ng-grid中显示行#而不从服务器发送。
My HTML file: <!DOCTYPE html> <html ng-app="myApp"> <head lang="en"> <Meta charset="utf-8"> <title>test </title> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/angularjs/1.0.6/angular.min.js"></script> <script type="text/javascript" src="http://angular-ui.github.io/ng-grid/lib/ng-grid.js"></script> <script type="text/javascript" src="gridExample.js"></script> <link rel="stylesheet" type="text/css" href="http://angular-ui.github.io/ng-grid/css/ng-grid.css" /> <link rel="stylesheet" type="text/css" href="css/style.css" /> </head> <body ng-controller="GridExampleCtrl"> <div> Grid Selection: <select ng-model="gridSelectedId"> <option ng-repeat="gridSel in gridSels" value="{{gridSel.GridSelId}}">{{gridSel.GridSelName}}</option> </select> <br/>User selected: {{gridSelectedId}} <br><hr> <div> <button ng-click="display()">Display</button><hr> <div class="gridStyle" ng-grid="gridOptions"></div> </div> </div> </body> </html>
我的控制器是:
var app = angular.module('myApp',['ngGrid']); app.controller('GridExampleCtrl',function ($scope,$http,$timeout) { $scope.myData = []; $scope.grid1 = [{name: "grid1a",age: 50},{name: "grid1b",age: 43},{name: "grid1c",{name: "grid1d",age: 29},{name: "grid1e",age: 34}]; $scope.grid2 = [{lastname: "grid2a",age: 50,state:'Idaho'},{lastname: "grid2b",age: 43,state:'NewYork'},{lastname: "grid2c",state:'California'},{lastname: "grid2d",age: 29,state:'Arizona'},{lastname: "grid2e",age: 34,state:'Utah'}]; $scope.gridSels = [ {GridSelId : 1,GridSelName : 'Grid 1' },{GridSelId : 2,GridSelName : 'Grid 2' } ] $scope.gridOptions = { data: 'myData',enableColumnResize: true,showGroupPanel: true,//pagingOptions: $scope.pagingOptions }; $scope.display = function(){ console.log("User selected grid : " + $scope.gridSelectedId); if ($scope.gridSelectedId == 1) { $scope.myData = $scope.grid1; } else { $scope.myData = $scope.grid2; } }; });
和css看起来像:
.gridStyle { border: 1px solid rgb(212,212,212); width: 800px; height: 400px; }
虽然
a bug在ng网格中可以防止这个答案与enableColumnResize正常工作:true(在列更改后会导致无形数据更改为columnDefs),在基本情况下,您可以按照
$scope.colDefs = []; $scope.$watch('myData',function() { $scope.colDefs = []; angular.forEach(Object.keys($scope.myData[0]),function(key){ $scope.colDefs.push({ field: key }); }); } ); $scope.gridOptions = { data: 'myData',columnDefs: 'colDefs',enableColumnResize: false,showGroupPanel: true };
这是一个工作的朋友,用你的例子来展示它:
http://plnkr.co/edit/w1DLtS