Question

基本上它的kendo网格默认数据的dataSource是selVal，如果selval的任何键与dtoVal匹配我想删除所有内容从selVa，是否可能使用下面的代码实现它不从数组中删除selVal元素。有什么想法吗？

ctrl.js

$scope.handleControlOwnerCancel = function(){
                this.ctrlOwnerModal.close();
                var dtoVal = $scope.controlDTO.controlOwners;
                var selVal = $scope.selectedOwners;
                for (var i = 0; i < dtoVal.length; i++) {
                  for (var j=0; j<selVal.length; j++)  {
                   if (dtoVal[i].workerKey  !== selVal[j].workerKey) {
                     $scope.selectedOwners = $scope.controlDTO.controlOwners;
                     controlOwnersDataSource();
                    }
                  }
                }

            };

Answer 1

最好使用angular.forEach而不是for循环。你也说过

如果selval中的任何键与dtoVal匹配，我想删除来自selVa的一切

但是在循环内部，您正在使用!==进行检查。我不知道哪一个是你的要求。但你可以尝试这样做：

$scope.handleControlOwnerCancel = function(){
    this.ctrlOwnerModal.close();
    //var dtoVal = $scope.controlDTO.controlOwners;
    //var selVal = $scope.selectedOwners;
    var match = 0;
    angular.forEach($scope.selectedOwners, function(val, key){
        angular.forEach($scope.controlDTO.controlOwners, function(val2, key2){
            if(val.workerKey==val2.workerKey){
                match++;
            }
        })          
    })
    if(match>0){
        $scope.selectedOwners = $scope.controlDTO.controlOwners;
        controlOwnersDataSource();
    }
};

Answer 2

试试这个

$scope.handleControlOwnerCancel = function(){
  this.ctrlOwnerModal.close();
  var dtoVal = $scope.controlDTO.controlOwners;
  var selVal = $scope.selectedOwners;
  var selValCopy = angular.copy(selVal);
  for (var i=dtoVal.length-1; i>=0; i--) {
    for (var j=selVal.length-1; j>=0; j--)  {
      if (dtoVal[i].workerKey  === selVal[j].workerKey) {
        selValCopy.splice(j, 1);
      } else {
        $scope.selectedOwners = $scope.controlDTO.controlOwners;
        controlOwnersDataSource();
      }
    }
  }
  selVal  = selValCopy;
};

如果一个键匹配，如何删除数组元素？

2 个答案: