$scope.postForm = function(dataForm){
        $ionicLoading.show({
            template: 'Verifying...'
        });
        var encodedString = 'action=' +
                encodeURIComponent("CheckLogin") +
                '&user=' +
                encodeURIComponent(dataForm.datausername) +
                '&pw=' +
                encodeURIComponent(dataForm.datapassword);
        $scope.errorMsg = ""; //reset the error message
        $http({
                method: 'POST',
                url: 'http://mylocalhost/mysite.aspx',
                data: encodedString,
                headers: {'Content-Type': 'application/x-www-form-urlencoded'}
            })
            .success(function(data, status, headers, config) {
                //some of my codes

            })
            .error(function(data, status, headers, config) {
                $scope.errorMsg = 'Unable to submit form' + status;
                $ionicLoading.hide();
            })
        }