<div>
  <span class=" btn btn-primary fileinput-button" >
                    <input type='file' id="File1" data-ng-file-select="onFileSelect($files)"  />
                    <span>Add File</span>
           </span>
</div>

$scope.onFileSelect = function ($files) {
                $scope.$file = $files[0];
                $scope.upload();
            };



$scope.upload = function () {


                //$.blockUI();
                $scope.disabledTemp = "disabled";
                $upload.upload({
                    url: '/Plan/ExcelUpload',
                    file: $scope.$file

                }).progress(function (evt) {


                }).success(function (data, status, headers, config) {
                    var message = data.replace(/"/g, "");
                    if (message === "true") {
                        notification.showSuccess(messageService.getMessage('commonMessages', 'saved'));
                    } else if (message === "false") {
                        notification.showWarning(messageService.getMessage('Messages', 'invalidExcelFile'));
                    } else if (message === "sysAdmin") {
                        notification.showWarning(messageService.getMessage('Messages', 'sysAdmin'));
                    }
                    $files = [];
                    $.unblockUI();
                });
            };