Come ottenere la dimensione del file in WinRT?

Question

In WinRT non c'è FileInfo classe, solo una classe StorageFile.

Come è possibile ottenere la dimensione di un file utilizzando la classe StorageFile?

Answer 1

Quindi qui si va:

storageFile.getBasicPropertiesAsync().then(
    function (basicProperties) { 
     var size = basicProperties.size; 
    } 
); 

Answer 2

Hai provato questo:

 
     create_task(file->GetBasicPropertiesAsync()).then([this, file](BasicProperties^ basicProperties) 
     { 
      String^ dateModifiedString = dateFormat->Format(basicProperties->DateModified) + " " + timeFormat->Format(basicProperties->DateModified); 
      OutputTextBlock->Text += "\nFile size: " + basicProperties->Size.ToString() + " bytes" + "\nDate modified: " + dateModifiedString; 

     }); 

See: http://msdn.microsoft.com/en-us/library/windows/apps/windows.storage.fileproperties.basicproperties.size.aspx

Answer 3

In C#:

StorageFile file = await openPicker.PickSingleFileAsync(); 
BasicProperties pro = await file.GetBasicPropertiesAsync(); 
if (pro.Size != 0){} 

È Shoul d utilizzando Windows.Storage.FileProperties per BasicProperties.