/// <summary>
/// Returns an <see cref="IUploadState"/> for a given post-back ID
/// </summary>
/// <param name="postBackID">
/// A post-back ID identifying the <see cref="IUploadState"/>.
/// </param>
/// <returns>
/// The <see cref="IUploadState"/> corresponding to
/// <paramref name="postBackID"/>
/// </returns>
public static UploadState OpenReadOnly(string postBackID)
{
UploadState uploadState = Provider.Load(postBackID);
if (uploadState == null)
{
return(null);
}
UploadState uploadStateCopy = new UploadState();
uploadStateCopy.CopyFrom(uploadState);
uploadStateCopy.IsWritable = false;
return(uploadStateCopy);
}
/// <summary>
/// Returns an <see cref="UploadState"/> for a given post-back ID.
/// or null if none exists.
/// </summary>
/// <param name="postBackID">
/// A post-back ID identifying the <see cref="UploadState"/>.
/// </param>
/// <returns>
/// The <see cref="IUploadState"/> corresponding to
/// <paramref name="postBackID"/>, or null if none-exists.
/// </returns>
public static UploadState OpenReadWrite(string postBackID)
{
UploadState uploadState = Provider.Load(postBackID);
if (uploadState != null)
{
if (uploadState.DeleteAfterDelayWhenNotOpenReadWrite)
{
CancelDeleteAfterDelay(uploadState.PostBackID);
}
UploadState uploadStateCopy = new UploadState();
uploadStateCopy.CopyFrom(uploadState);
uploadStateCopy.IsWritable = true;
uploadStateCopy.DeleteAfterDelayWhenNotOpenReadWrite
= uploadState.DeleteAfterDelayWhenNotOpenReadWrite;
uploadStateCopy.OnMerged();
uploadStateCopy.Changed += new EventHandler(UploadState_Changed);
uploadState = uploadStateCopy;
}
return(uploadState);
}
/// <summary>
/// Returns an <see cref="IUploadState"/> for a given post-back ID
/// </summary>
/// <param name="postBackID">
/// A post-back ID identifying the <see cref="IUploadState"/>.
/// </param>
/// <returns>
/// The <see cref="IUploadState"/> corresponding to
/// <paramref name="postBackID"/>
/// </returns>
public static UploadState OpenReadOnly(string postBackID)
{
UploadState uploadState = Provider.Load(postBackID);
if (uploadState == null)
return null;
UploadState uploadStateCopy = new UploadState();
uploadStateCopy.CopyFrom(uploadState);
uploadStateCopy.IsWritable = false;
return uploadStateCopy;
}