Question

当我尝试使用角度验证从文件类型输入上传图像时，它显示错误并且不会通过

<input type="file" name="displaypic" ng-model="displaypic" ng-pattern="/\.(jpe?g|png|gif|bmp)$/i" ng-required="true" />
<span ng-show="SignupForm.displaypic.$error.pattern">* Must be an Image</span>

用css作为 input.ng-invalid.ng-touched{border: 2px solid red;}

它没有显示$error.pattern的错误，只是获取了无效文件的CSS并且没有让表单提交

Answer 1

你必须使用指令在控制器中创建一个对象

$scope.file={};
$scope.file.fileDetail={};

<input type="file" fileUpload filetoread="file.fileDetail" />

.directive("fileUpload ", [function () {
return {
    scope: {
        filetoread: "="
    },
    link: function (scope, element, attributes) {
        element.bind("change", function (changeEvent) {
            var reader = new FileReader();
            reader.onload = function (loadEvent) {
                scope.$apply(function () {
                    scope.filetoread= loadEvent.target.result;
                });
            }
            reader.readAsDataURL(changeEvent.target.files[0]);
        });
    }
}
 }]);

输入类型=＆＃34;文件＆＃34;上传图像文件时显示错误

1 个答案: