| public BeginWrite ( byte buffer, int offset, int numBytes, System userCallback, object stateObject ) : System.IAsyncResult | ||
| buffer | byte | |
| offset | int | |
| numBytes | int | |
| userCallback | System | |
| stateObject | object | |
| Résultat | System.IAsyncResult | |
public void ReadOnly ()
{
IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication ();
try {
using (IsolatedStorageFileStream fs = new IsolatedStorageFileStream ("read-only", FileMode.Create, FileAccess.Write, isf)) {
fs.WriteByte (0);
}
// now we open it read-only
using (IsolatedStorageFileStream fs = new IsolatedStorageFileStream ("read-only", FileMode.Open, FileAccess.Read, isf)) {
Assert.Throws (delegate { fs.WriteByte (0); }, typeof (NotSupportedException), "WriteByte");
Assert.Throws (delegate { fs.Write (new byte [0], 0, 0); }, typeof (NotSupportedException), "Write");
Assert.Throws (delegate { fs.BeginWrite (new byte [0], 0, 0, null, null); }, typeof (NotSupportedException), "BeginWrite");
}
}
finally {
isf.DeleteFile ("read-only");
}
}
public void AsyncEndWrite_Disposed ()
{
IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication ();
using (IsolatedStorageFileStream fs = new IsolatedStorageFileStream ("moon", FileMode.Create, isf)) {
byte [] data = new byte [2];
KeyValuePair<IsolatedStorageFile, IsolatedStorageFileStream> kvp = new KeyValuePair<IsolatedStorageFile, IsolatedStorageFileStream> (isf, fs);
IAsyncResult result = fs.BeginWrite (data, 0, 2, new AsyncCallback (EndWriteDisposed), kvp);
result.AsyncWaitHandle.WaitOne ();
}
}
public void AsyncWrite ()
{
IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication ();
using (IsolatedStorageFileStream fs = new IsolatedStorageFileStream ("moon", FileMode.Create, isf)) {
byte[] data = new byte [2];
IAsyncResult result = fs.BeginWrite (data, 0, 2, new AsyncCallback (EndWrite), fs);
result.AsyncWaitHandle.WaitOne ();
isf.Remove (); // this removed everything
Assert.Throws (delegate { fs.BeginWrite (data, 0, 2, new AsyncCallback (EndWrite), fs); }, typeof (IsolatedStorageException), "Remove/Write"); // Fails in Silverlight 3
isf.Dispose ();
Assert.Throws (delegate { fs.BeginWrite (data, 0, 2, new AsyncCallback (EndWrite), fs); }, typeof (ObjectDisposedException), "Dispose/Write");
}
isf = IsolatedStorageFile.GetUserStoreForApplication ();
Assert.AreEqual (0, isf.GetFileNames ().Length, "Empty");
}
public void AsyncEndWrite_Removed ()
{
IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication ();
isf.Remove ();
isf = IsolatedStorageFile.GetUserStoreForApplication ();
Assert.AreEqual (0, isf.GetFileNames ().Length, "pre-check");
using (IsolatedStorageFileStream fs = new IsolatedStorageFileStream ("moon", FileMode.Create, isf)) {
byte [] data = new byte [2];
KeyValuePair<IsolatedStorageFile, IsolatedStorageFileStream> kvp = new KeyValuePair<IsolatedStorageFile, IsolatedStorageFileStream> (isf, fs);
IAsyncResult result = fs.BeginWrite (data, 0, 2, new AsyncCallback (EndWriteRemoved), kvp);
result.AsyncWaitHandle.WaitOne ();
}
}
public void AsyncWrite ()
{
IsolatedStorageFileStream isfs = new IsolatedStorageFileStream ("cas-AsyncWrite", FileMode.Create);
message = "AsyncWrite";
reset.Reset ();
IAsyncResult r = isfs.BeginWrite (new byte[0], 0, 0, new AsyncCallback (WriteCallback), isfs);
Assert.IsNotNull (r, "IAsyncResult");
if (!reset.WaitOne (timeout, true))
Assert.Ignore ("Timeout");
Assert.IsNull (message, message);
isfs.Close ();
}
