ng-repeat中的Angularjs显示和隐藏按钮

Question

我有一个列表,用于填充屏幕ng-repeat.每行都有一个按钮供用户单击以选择行.通常你会使用单选按钮,但用户想要一个按钮切换.

我真正想要的是显示第一个按钮(在第一次显示列表时隐藏第二个按钮),在用户点击第一个按钮以选择特定行之后,我想隐藏第一个按钮并显示第二个按钮.2按钮具有不同的ID,文本,样式.所以对用户来说,就像选择后更改按钮的外观一样.

我尝试在控制器中的函数中设置showfarebut1/ showfarebut2scope变量populateFareOption(row.col3.value, row.col4.value),但是在单击按钮1之后所有行都有第二个按钮.

任何想法或代码片段..将不胜感激.

HTML

<tr ng-repeat="row in rowList">
    <td> {{row.col1.value}}</td>

    <td>
        <span class="price">PRICE:&nbsp;
            <strong class="amount">{{row.col2.value}}</strong>
        </span>

        <button id="btnXX1" ng-show="showfarebut1" type="button" class="btn pull-right" ng-click="populateFareOption(row.col3.value,row.col4.value)">

            <span class="text pull-left" name="fareOption" ng-model="travelCardForm.colOption" value="{{row.col3.value}}">Select</span>
            <i class="icon-placeholder"></i>
        </button> 

        <button id="btnXX2" ng-show="showfarebut2" type="button" class="btn pull-right">
            <span class="text pull-left">Selected</span>
            <i class="selected-icon pull-right"></i>
        </button>
    </td> 
</tr>

调节器

    $scope.showfarebut1=true;
    $scope.showfarebut2=false;

    $scope.populateFareOption = function(x,y){
         cardForm.fareOption.value=x;
         cardForm.productCode.value=y;
         $scope.showfarebut1=false;
         $scope.showfarebut2=true;
       }

Answer 1

在您的示例中,您拥有showfarebut1并showfarebut2共享所有行,这会导致单击一个按钮影响所有行.你应该使用绑定到当前行的东西:row.showfarebut1和row.showfarebut2.

但是,有一种更有效的方法来制作切换按钮.您可以重复使用相同的按钮,并根据记录的状态设置类和文本.这是一个简单的例子:

HTML

<ul class="list-group" ng-controller="ctrl">
  <li class="list-group-item" ng-repeat="row in rowList">
    <span>{{row.col1.value}}</span>
    <span>{{row.col2.value}}</span>
    <button type="button" ng-click="row.selected=!row.selected" class="pull-right btn btn-xs">
      <span ng-class="{'glyphicon':true, 'glyphicon-ok':row.selected, 'glyphicon-plus':!row.selected}"></span>
      {{row.selected?'Selected':''}}
    </button>
  </li>
</ul>

您可以使用ng-class指令来切换类和条件,{{row.selected?'Selected':''}}以切换按钮的文本.

JavaScript的

angular.module('app', []).
  controller('ctrl', function($scope) {
    $scope.rowList = [{
      col1: { value: 'r1c1'},
      col2: {value: 'r1c2'}
    }, {
      col1: {value: 'r2c1'},
      col2: {value: 'r2c2'}
    }, {
      col1: {value: 'r3c1'},
      col2: {value: 'r3c2'}
    }];
  });

你甚至不需要一些特殊的功能来选择一个项目,你可以直接做简单的事情 ng-click

截图

Plunker: http ://plnkr.co/edit/ZFRIWOe2HxMq8K11FBk4？p =preview

编辑(改编版):

HTML

<table ng-controller="ctrl" class="table">
  <tr ng-repeat="row in rowList">
    <td>{{row.col1.value}}</td>
    <td>
      <span class="price">PRICE:&nbsp;
        <strong class="amount">{{row.col2.value}}</strong>
      </span>
      <button id="btn{{$index}}"  type="button" class="btn pull-right" ng-click="select(row)">
        <span class="text pull-left" name="fareOption" value="{{row.col3.value}}">{{row.selected?'Selected':'Select'}}</span>
        <i ng-class="{'icon-placeholder':!row.selected, 'selected-icon':row.selected, 'pull-right':row.selected}"></i>
      </button>
    </td> 
  </tr>
</table>

JavaScript的

angular.module('app', []).
  controller('ctrl', function($scope) {
    $scope.rowList = [{
      col1: {value: 'Orange'},
      col2: {value: '10'},
      col3: {value: 'x1'},
      col4: {value: 'y1'}
    }, {
      col1: {value: 'Apple'},
      col2: {value: '20'},
      col3: {value: 'x2'},
      col4: {value: 'y2'}
    }, {
      col1: {value: 'Banana'},
      col2: {value: '15'},
      col3: {value: 'x3'},
      col4: {value: 'y3'}
    }];

    $scope.select = function(row) {
      row.selected=!row.selected;
      // Do something with row.col3.value and row.col4.value
    }
  });

Plunker: http ://plnkr.co/edit/DdO1zBXxkyXWSLA6Gv2x?p=preview