我不知道为什么我要面对这个错误! 这里是我的代码片段:不允许在myStore.CreateFile(fileName)方法的IsolatedStorageFileStream上执行操作
public void SaveImageTo(string fileName="ABC.jpg")
{
var myStore = IsolatedStorageFile.GetUserStoreForApplication();
if (myStore.FileExists(fileName))
{
myStore.DeleteFile(fileName);
}
IsolatedStorageFileStream myFileStream = myStore.CreateFile(fileName);
qrImage.SaveJpeg(myFileStream, qrImage.PixelWidth, qrImage.PixelHeight, 0, 85);
myFileStream.Close();
// Create a new stream from isolated storage, and save the JPEG file to the media library on Windows Phone.
myFileStream = myStore.OpenFile(fileName, FileMode.Open, FileAccess.Read);
MediaLibrary library = new MediaLibrary();
//byte[] buffer = ToByteArray(qrImage);
library.SavePicture(fileName, myFileStream);
}
它给了我“操作不IsolatedStorageFileStream许可”,这qrImage是一个全球性的writablebitmap。需要帮忙 ! 在此先感谢!
当文件失败时,'fileName'的* actual *值是什么? “ABC.jpg”只是参数的默认值。 –