如果选中复选框则需要输入值

Question

我有一系列行，每个行一个复选框。每行有几个输入。我已经进行了验证，要求检查所有行中至少有一个复选框。但是，我迄今无法要求输入只有一个值才能选中复选框。

HTML：

<div style="width: 100%;">
<checkboxgroup-Wheelbase min-required="1">          
    <table style="width: 100%">                                
        <tr>
            <td>
                <table style="width: 97%;">
                    <tr>
                        <th style="width: 220px;" class="wheelbaseHeaderCell">Wheelbase<br /><span style="font-weight: 400;">(choose min of 1)</span></th>
                        <th class="wheelbaseHeaderCell">Payload<br />[ pounds ]</th>
                        <th class="wheelbaseHeaderCell">Length<br />[ inches ]</th>
                        <th class="wheelbaseHeaderCell">Height<br />[ inches ]</th>
                        <th class="wheelbaseHeaderCell">Weight<br />[ pounds ]</th>
                        <th class="wheelbaseHeaderCell">Turn Radius<br />[ feet ]</th>
                    </tr>
                </table>
            </td>
        </tr>
        <tr>
            <td style="height: 5px;"></td>
        </tr>
        <tr>
            <td>
                <div style="height: 170px; overflow: auto;">
                    <table style="width: 100%;">
                        <tr class="rowGroup" ng-repeat="wheelbase in wheelbases" data-rowParent="wheelbase[wheelbase.Id]">
                            <td class="wheelbaseCell" style="padding-left: 10px;" id="{{wheelbase.Id}}">
                                <!--Wheelbase-->                                    
                                <label class="checkbox" for="{{wheelbase.Id}}" style="text-align: left; width: 200px;">  
                                    {{wheelbase.WheelbaseGrade}} - {{wheelbase.Inches}} inches
                                    <input ng-model="wheelbase.checked" id="wheelbase{{wheelbase.Id}}" type="checkbox"  /></label>
                            </td>
                            <td >
                                <!--Payload Capacity-->
                                <span style="display: inline-block;" ng-controller="PayloadCapacitiesCtrl">
                                    <input ng-model="payloadCapacity.Pounds" data-rowChild="{{wheelbase[wheelbase.Id]}}" type="number" style="width: 80px;" min="0" ng-class="getClass({{wheelbase.Id}})" ng-disabled="!wheelbase.checked" />
                                </span>                                                                
                            </td>                                
                            <td >
                                <!--Length-->
                                <span style="display: inline-block;" ng-controller="VehicleLengthCtrl">
                                    <input data-rowChild="{{wheelbase[wheelbase.Id]}}" type="number" style="width: 80px;" min="0" ng-class="getClass({{wheelbase.Id}})" ng-disabled="!wheelbase.checked"/>
                                </span>                                
                            </td>
                            <td >
                                <!--Height-->
                                <span style="display: inline-block;" ng-controller="VehicleHeightCtrl">
                                    <input data-rowChild="{{wheelbase[wheelbase.Id]}}" type="number" style="width: 80px;" min="0" ng-class="getClass({{wheelbase.Id}})" ng-disabled="!wheelbase.checked"/>
                                </span>                                
                            </td>
                            <td >
                                <!--Weight-->
                                <span style="display: inline-block;" ng-controller="VehicleWeightCtrl">
                                    <input data-rowChild="{{wheelbase[wheelbase.Id]}}" type="number" style="width: 80px;" min="0" ng-class="getClass({{wheelbase.Id}})" ng-disabled="!wheelbase.checked"/>
                                </span>                                
                            </td>
                            <td >
                                <!--Turning Radii -->
                                <span style="display: inline-block;" ng-controller="TurningRadiiCtrl">
                                    <input data-rowChild="{{wheelbase[wheelbase.Id]}}" type="number" style="width: 80px;" min="0"  ng-class="getClass({{wheelbase.Id}})" ng-disabled="!wheelbase.checked"/>
                                </span>                                
                            </td>
                        </tr>
                    </table>  
                </div>
            </td>
        </tr>
    </table>
</checkboxgroup-Wheelbase>
<span class="hint" style="margin: 0 0 0 -35px; text-align: center; width: 100%;">         
    <button style="padding-top: 5px; ;" class="addNew"  ng-click="openDialog()"><i class="icon-plus"></i> [ add new wheelbase ]</button>
</span>

要求至少选中一个复选框的指令：

.directive('checkboxgroupWheelbase', function() {
    return {
        restrict: 'E',
        controller: function($scope, $attrs) {
            var self = this;
            var ngModels = [];
            var minRequired;
            self.validate = function() {
                var checkedCount = 0;
                angular.forEach(ngModels, function(ngModel) {
                    if (ngModel.$modelValue) {
                        checkedCount++;
                    }
                });
                console.log('minRequired', minRequired);
                console.log('checkedCount', checkedCount);
                var minRequiredValidity = checkedCount >= minRequired;
                angular.forEach(ngModels, function(ngModel) {
                    ngModel.$setValidity('checkboxgroupWheelbase-minRequired', minRequiredValidity, self);
                });
            };

            self.register = function(ngModel) {
                ngModels.push(ngModel);
            };

            self.deregister = function(ngModel) {
                var index = this.ngModels.indexOf(ngModel);
                if (index != -1) {
                    this.ngModels.splice(index, 1);
                }
            };

            $scope.$watch($attrs.minRequired, function(value) {
                minRequired = parseInt(value, 10);
                self.validate();
            });
        }
    };
})

是否需要一种简单，优雅的方法来要求检查这些复选框的输入字段？它通过“规则”直接在JQuery中出现，但我还没有找到通过AngularJs做到这一点的方法。有人建议我使用子表格，但我无法想象它的实现。

如果我不够清楚

对于选中相应复选框的任何行，该行的所有输入都需要具有值。因此，如果选中行1,3和5的复选框，则行1,3和5的输入需要值。如果选中了行的复选框，则该行的输入需要一个值。如果未选中该行的复选框，则不需要这些输入。在清理它时，它让我觉得明智的做法是在检查各自的轴距复选框之前禁用所有输入。

更新

我要感谢user2104976让我考虑更好的用户体验，因为在未选中相应的轴距复选框时确保不添加输入值，所以我实现了这个

 **"ng-disabled="!wheelbase.checked"** 

在每个相应的输入中。多谢，伙计！！现在如何解决我原来的问题，哈哈！

Answer 1

您可以使用ng-required来完成此任务：

<强> NG-需要= “wheelbase.checked”

以下是更新后的HTML相关部分：

<table style="width: 100%;">
    <tr class="rowGroup" ng-repeat="wheelbase in wheelbases" data-rowParent="wheelbase[wheelbase.Id]" style="padding-top: 10px;">
        <td class="wheelbaseCell" style="padding-left: 10px;" id="{{wheelbase.Id}}">
            <!--Wheelbase-->                                    
            <label class="checkbox" for="{{wheelbase.Id}}" style="text-align: left; width: 200px;">  
                {{wheelbase.WheelbaseGrade}} - {{wheelbase.Inches}} inches
                <input ng-model="wheelbase.checked" id="wheelbase{{wheelbase.Id}}" type="checkbox" /></label>
        </td>
        <td >
            <!--Payload Capacity-->
            <span style="display: inline-block;" ng-controller="PayloadCapacitiesCtrl">
                <input ng-model="payloadCapacity.Pounds" data-rowChild="{{wheelbase[wheelbase.Id]}}" id="payload{{wheelbase.Id}}" type="number" style="width: 80px;" min="0" ng-disabled="!wheelbase.checked" ng-required="wheelbase.checked" ng-class="{'formRequire' : wheelbase.checked }"  />
            </span>                                                                
        </td>                                
        <td >
            <!--Length-->
            <span style="display: inline-block;" ng-controller="VehicleLengthCtrl">
                <input ng-model="vehicleLength.Inches" data-rowChild="{{wheelbase[wheelbase.Id]}}" type="number" style="width: 80px;" min="0"  ng-disabled="!wheelbase.checked" ng-required="wheelbase.checked" ng-class="{'formRequire' : wheelbase.checked }"  />
            </span>                                
        </td>
        <td >
            <!--Height-->
            <span style="display: inline-block;" ng-controller="VehicleHeightCtrl">
                <input ng-model="vehicleHeight.Inches" data-rowChild="{{wheelbase[wheelbase.Id]}}" type="number" style="width: 80px;" min="0"  ng-disabled="!wheelbase.checked" ng-required="wheelbase.checked" ng-class="{'formRequire' : wheelbase.checked }"  />
            </span>                                
        </td>
        <td >
            <!--Weight-->
            <span style="display: inline-block;" ng-controller="VehicleWeightCtrl">
                <input ng-model="vehicleWeight.Pounds" data-rowChild="{{wheelbase[wheelbase.Id]}}" type="number" style="width: 80px;" min="0"  ng-disabled="!wheelbase.checked" ng-required="wheelbase.checked" ng-class="{'formRequire' : wheelbase.checked }"  />
            </span>                                
        </td>
        <td >
            <!--Turning Radii -->
            <span style="display: inline-block;" ng-controller="TurningRadiiCtrl">
                <input ng-model="turningRadius.Feet" data-rowChild="{{wheelbase[wheelbase.Id]}}" type="number" style="width: 80px;" min="0"   ng-disabled="!wheelbase.checked" ng-required="wheelbase.checked"  ng-class="{'formRequire' : wheelbase.checked }"  />
            </span>                                
        </td>
    </tr>
</table>  

使用ng-disabled =“！wheelbase.checked”

使用ng-required =“wheelbase.checked”＆amp; ng-class =“{'formRequire'：wheelbase.checked}”

如果选中相应的轴距复选框，则输入条件类的条件类：

.ng-invalid .formRequire {     大纲：红色固体3px; }