Question

  <div ng-show="!showTagging" class="form-group">
              <div class="form-group">
                <div ng-show="!showPreview"> Add a photo of you enjoying a specific whiskey or an image inspired by one!</div>
                <hr></hr>

  //when file is uploaded below, it sets $scope.post.picturePreCrop

                <label id="upload" required ng-model="post.picturePreCrop" ngf-pattern="image/*" ngf-select="droppedFile()" accept="image/*" ngf-accept="'image/*'" ngf-pattern="'.jpeg,.jpg,.png,.bmp'" ngf-max-size="8MB" ngf-max-files="1" ngf-fix-orientation="true">
                      <div class="add-link"><i class="fa fa-camera"></i><a class="underlined"> Add or Take a Photo:</a></label></div>
              <div></div>
              <ng-croppie ng-if="post.picturePreCrop" src="post.picturePreCrop | ngfDataUrl" ng-model='post.pictureUrl' update='onUpdate' boundry="{w: 200, h: 200}" viewport="{w: 200, h: 200}" mousezoom="true" zoom="true" type="square">
              </ng-croppie>
              <img ng-if="!post.picturePreCrop" class="prof-photo" ng-src="{{post.picture || 'https://placehold.it/200x200'}}">
            </div>

//once picture is cropped, it sets $scope.post.pictureUrl

            <div class="btn btn-lg btn-block btn-success" ng-disabled="post.picturePreCrop === undefined" ng-click="showTagging = true"> Next </div>

`

//when the next button above is hit, $scope.post.pictureUrl is removed, but post.picturePreCrop still persist.
</div>

我正在使用ng-croppie指令。当我隐藏包含ng-croppie的div时，我的裁剪url会在$ scope中消失。

它来自：

pictureUrl:"data:image/png;base64,iVBORw0KGgoAAAAN...

然后，一旦调用ng-show，就转到：

pictureUrl:"data:,"

如果我取消隐藏div，pictureUrl会按预期返回。

即使隐藏了这个pictureUrl属性，如何使其保持不变？

我知道ng-if从dom中删除了元素，但这似乎是出乎意料的ng-show ..

Answer 1

您的ng-show指令放在DIV控件的父ng-croppie上。 ng-show切换HTML控件的显示，这意味着当ng-show条件表达式不满足时，您的整个div（及其内容）将被隐藏，包括DIV儿童。您需要将ng-croppie移出此DIV或将ng-show指令放在不包含ng-croppie控件的其他位置。

ng-show / ng-hide从$ scope中删除ng-model

1 个答案: