javascript - 如何使用 angularjs 从表中删除特定行？

Question

我正在处理这个 Angularjs 表。当我删除客户(单击“删除”)时，特定客户就会消失，并且效果很好:)。但是，假设我搜索像 Alex 这样的特定客户，然后在搜索框中输入 Alex，然后我想将其删除，但由于某种原因，我的 removePerson 函数针对表中的第一个客户。请告诉我我的removePerson 函数中做错了什么。非常感谢!!

这是我的代码:

var App = angular.module('sortApp', ['ui.bootstrap'])

App.controller('mainController', function($scope, $modal, $log, $filter) {

$scope.sortType     = 'id'; // set the default sort type
$scope.sortReverse  = false;  // set the default sort order
$scope.searchPerson  = '';     // set the default search/filter term

// Array - List of People   
$scope.People = [
{ id: 1, name: 'Mike', Lastname: 'White', age: 26 },
{ id: 2, name: 'Carl', Lastname: 'Barns', age: 41 },
{ id: 3, name: 'Deb', Lastname: 'McDonals',age: 78 },
{ id: 4, name: 'Tommy', Lastname: 'Humbs', age: 32 },
{ id: 5, name: 'Mary', Lastname: 'Browns', age: 18 },
{ id: 6, name: 'Alex', Lastname: 'Sams', age: 50 },
{ id: 7, name: 'Beto', Lastname: 'Burns', age: 27 }
];  
/*
This function adds a new customer
*/
$scope.addPerson = function(){
var customer = {
    name: $scope.name,
    Lastname: $scope.Lastname,
    age: $scope.age,
};

$scope.People.push(customer);
};
/*
This function removes a customer
*/
$scope.removePerson = function(index){

if(confirm("Are you sure to remove Customer")){
        $scope.People.splice(index, 1);
    }
 };  
 $scope.openPopupScreen = function() {

 var modalInstance = $modal.open({
  template: '<div class="modal-header">   <a class="close" data- dismiss="modal" ng-click="cancel()"><i class="fa fa-times-circle-o" style="margin:10px;color:black;font-size:35px;"></i></a><h1>Add Customer</h1></div><div class="modal-body">    <form >' +
    ' <label class="col-sm-3 control-label no-padding-right ng-binding">NAME:</label><input style = "width:300px;"type="text" class="form-control ng-scope ng-pristine ng-valid" ng-model="person.name"></br>' +
    ' <label class="col-sm-3 control-label no-padding-right ng-binding">LASTNAME:</label><input style = "width:300px;" type="text" class="form-control ng-scope ng-pristine ng-valid" ng-model="person.Lastname"></br>' +
    ' <label class="col-sm-3 control-label no-padding-right ng-binding">AGE:</label><input style = "width:300px;" type="number"class="form-control ng-scope ng-pristine ng-valid" ng-model="person.age"></br>' +
    ' <button id = "myid" type="button" class="btn btn-success" ng-click="add()"><i class="ace-icon fa fa-check"></i>Add New Customer</button>' +
    '  <button type="reset" class="btn ">Clear</button>' +
    '<div ng-hide = "error_name_message" id="Error_Message_name">'+
    '<p>Please enter a name</p>'+
  '</div>'+
  '<div ng-hide = "error_lastname_message" id="Error_Message_Lastname">'+
    '<p>Please enter a lastname</p>'+
  '</div>'+
  '<div ng-hide = "error_age_message" id="Error_Message_Age">'+
    '<p>Please enter age</p>'+
  '</div>'+
    ' </form>' +
    '</div>' +
    '<div class="modal-footer">' +
    '  <a data-dismiss="modal" aria-hidden="true" class="btn btn-primary" ng-click="cancel()">close</a>' +
    '</div>',
  controller: ModalInstanceCtrl
});
modalInstance.result.then(function (newPerson) {
  $scope.People.push(newPerson);
});
};

var ModalInstanceCtrl = function($scope, $modalInstance) {
$scope.person = {name: '', Lastname: '', age: ''};
$scope.error_name_message = true;
$scope.error_lastname_message = true;
$scope.error_age_message = true;


$scope.ok = function() {
$modalInstance.close($scope.selected.item);
};

$scope.cancel = function() {
$modalInstance.dismiss('cancel');
};

$scope.add = function() {
//Pass newPerson to caller from main controller
if($scope.person.name === ""){  

$scope.error_name_message= false;
  $("#Error_Message_name").show().delay(1900).fadeOut(900); // don't leave error on screen for long
}
else if($scope.person.Lastname === ""){  
  $scope.error_lastname_message = false;
  $("#Error_Message_Lastname").show().delay(1900).fadeOut(900); // don't leave error on screen for long
}
else if($scope.person.age === "" || $scope.person.age < 1){  
  $scope.error_age_message = false;
  $("#Error_Message_Age").show().delay(1900).fadeOut(900); // don't leave error on screen for long
}
else{
$modalInstance.close($scope.person);
}
};
};

});

Answer 1

发生这种情况是因为您传递的显示元素数组的索引键与原始数组不同。您可以通过不同的方式解决这个问题。这里建议的应该可行。希望对您有所帮助。

将您的removePerson函数更改为:

$scope.removePerson = function(index){
    if(confirm("Are you sure to remove Customer")){
        angular.forEach($scope.People, function(value, key) {
            if (value.id === index){
                $scope.People.splice(key, 1);
            }
        });
    }
};  

并将 Person 的 id 从 HTML 传递给函数:

<button type="button" class="btn btn-danger fa fa-trash-o" ng-click="removePerson(people.id)"></button>