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概括 ：

我正在使用 angularjs-dropdown-multiselect 指令。

参考： AngularJS 下拉多选

面临的问题：

问题 1：当用户从下拉列表中选择或取消选择选项时， 我想使用onItemSelect&事件。onItemDeselect

我成功配置了它们，但问题是如果没有选择任何选项，这些事件也会频繁执行。

HTML

<div ng-dropdown-multiselect="" options="listClientCompany" selected-model="selectedClients" extra-settings="clientSelectionSettings" translation-texts="translations" events="onItemSelect(selectedClients);onItemDeSelect(selectedClients)"></div>

控制器 ：

$scope.selectedClients = []; 
$scope.clientSelectionSettings = {idProp: '_id',displayProp:'name',externalIdProp : "_id",enableSearch:false,scrollableHeight: '200px',scrollable:true};   
$scope.translations = {buttonDefaultText: 'Select'};

$scope.onItemSelect = function(item) {
  console.log(item); // execute multiple times on page load also without selecting any option from the dropdown.
}

截屏 ：

在此处输入图像描述

我还尝试了这里定义的解决方案：

https://github.com/dotansimha/angularjs-dropdown-multiselect/issues/39。但没有取得任何成功。

问题 2： 当我$scope.selectedClients = [];从控制器中移除时，它会在控制台中出现此错误。

Error: [$interpolate:interr] Can't interpolate: {{getButtonText()}} 
TypeError: Cannot read property 'length' of undefined
http://errors.angularjs.org/1.2.19/$interpolate/interr?p0=%7B%7BgetButtonTe…%A0&p1=TypeError%3A%20Cannot%20read%20property%20'length'%20of%20undefined
    at http://0.0.0.0:9000/bower_components/angular/angular.js:78:12
    at Object.$interpolate.fn (http://0.0.0.0:9000/bower_components/angular/angular.js:8756:26)
    at Scope.$digest (http://0.0.0.0:9000/bower_components/angular/angular.js:12426:40)
    at Scope.$apply (http://0.0.0.0:9000/bower_components/angular/angular.js:12699:24)
    at done (http://0.0.0.0:9000/bower_components/angular/angular.js:8287:45)
    at completeRequest (http://0.0.0.0:9000/bower_components/angular/angular.js:8499:7)
    at XMLHttpRequest.xhr.onreadystatechange (http://0.0.0.0:9000/bower_components/angular/angular.js:8438:11) angular.js:9959

我还尝试了这里定义的解决方案：

https://github.com/dotansimha/angularjs-dropdown-multiselect/issues/22 但没有取得任何成功。

在这两个问题上的任何直接帮助都将是非常可观的。谢谢

4

1 回答 1

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你总是将数组发送到你应该这样做的函数

$scope.selectedClients = []; 
$scope.selectedClient = {};
$scope.clientSelectionSettings = {idProp: '_id',displayProp:'name',externalIdProp : "_id",enableSearch:false,scrollableHeight: '200px',scrollable:true};   
$scope.translations = {buttonDefaultText: 'Select'};

$scope.onItemSelect = function(item) {
  //then you can push your object to the array
  console.log(item); // execute multiple times on page load also without selecting any option from the dropdown.
}

和

<div ng-dropdown-multiselect="" options="listClientCompany" selected-model="selectedClient" extra-settings="clientSelectionSettings" translation-texts="translations" events="onItemSelect(selectedClient);onItemDeSelect(selectedClient)"></div>
于 2016-05-30T07:11:55.507 回答