为什么上传文件不适用于离子内容?如果我去除离子含量

时间:2015-10-28 08:46:13

标签: angularjs ionic

我是离子的新手,我想上传图片,因此我使用“ng-file-upload”上传我的图片。 但是只有当我删除“ion-content”时代码才能工作。我的模板是:

    <ion-view view-title="IQ Marketplace" ng-controller="SellCtrl">
    <ion-content class="padding" >
    <div class="list">
      <form   ng-submit="submitAds()" name="form" novalidate>


        <label class="item item-input">
          <span class="input-label">Picture</span>
      <input type="file" ngf-select ng-model="file" name="file" ngf-pattern="'image/*'"
        accept="image/*" >
        </label>
    <input type="submit" class="button button-block button-positive" value="Save" ng-disabled="form.$invalid">
    </form>

    </div><!--list-->

    </ion-content>
    </ion-view>

我的控制器是:

.controller('SellCtrl', function($scope,Upload) {

                  $scope.submitAds = function() {
                    console.log("ayman "+ $scope.file)
                      $scope.upload($scope.file);
                  };
                   $scope.upload = function (file) {
                      Upload.upload({
                          url: 'http://localhost/IQM/public/ads',
                          data: {file: file, 'username': $scope.test}
                      }).then(function (resp) {
                          console.log('Success ' + resp.config.data.file.name + 'uploaded. Response: ' + resp.data);
                      }, function (resp) {
                          console.log('Error status: ' + resp.status);
                      }, function (evt) {
                          var progressPercentage = parseInt(100.0 * evt.loaded / evt.total);
                          console.log('progress: ' + progressPercentage + '% ' + evt.config.data.file.name);
                      });
                  };
  });

这段代码给了我这个例外:

   TypeError: Cannot read property 'name' of undefined
   at controllers.js:84
   at ionic.bundle.js:23476
   at Scope.$eval (ionic.bundle.js:24673)
   at Scope.$digest (ionic.bundle.js:24484)
   at ionic.bundle.js:24712
   at completeOutstandingRequest (ionic.bundle.js:14221)
   at ionic.bundle.js:14493

但是当我删除“离子内容”时,上传会成功。 有什么问题?

2 个答案:

答案 0 :(得分:4)

我猜你已经介绍了Ionic Framework

这显然是有角度的Dim strCN As String = My.Settings.InovaConnectionString Dim cn As New SqlClient.SqlConnection(strCN) Dim ds As New DataSet Dim DataAdapt As New SqlClient.SqlDataAdapter("SELECT Code, Name, City FROM CUSTOMERS where Nome_Cliente like 'Carl%' ", cn) DataAdapt.Fill(ds, "CUSTOMERS") CUSTOMERSDataGridView.DataSource = ds.Tables("CUSTOMERS") 问题。

您在scope内定义ng-model="file"。虽然ion-content创建了新的ion-content,但您无法直接检索变量scope

请参阅doc,并说明:

  

请注意,此指令有自己的子范围。

您可以使用file之类的:

dot notations

然后你可以通过// controller $scope.data = {} // html <ion-content class="padding" > ... <input ng-model="data.file" /> ... </ion-content> 获得价值。

根本原因在于AngularJS的$scope.data.file概念。

您可以阅读这些文章以获取更多信息。

答案 1 :(得分:0)

我通过添加$ parent解决了这个问题,因此它变成了ng-model =“$ parent.file”

<ion-view view-title="IQ Marketplace" ng-controller="SellCtrl">
<ion-content class="padding" >
<div class="list">
  <form   ng-submit="submitAds()" name="form" novalidate>


    <label class="item item-input">
      <span class="input-label">Picture</span>
  <input type="file" ngf-select ng-model="$parent.file" name="file" ngf-pattern="'image/*'"
    accept="image/*" >
    </label>
<input type="submit" class="button button-block button-positive" value="Save" ng-disabled="form.$invalid">
</form>
</div><!--list-->
</ion-content>
</ion-view>