private void Control_PreRender(object sender, EventArgs args)
{
if (IsDesignTime)
{
return;
}
// Find the current upload context
string postBackID = Page.Request.Params["postBackID"];
string barID = Page.Request.Params["barID"];
// Set the status to Cancelled if requested.
if (Page.Request.Params["cancelled"] == "true")
{
UploadModule.CancelPostBack(postBackID);
}
IUploadProgressState progressState = new UploadProgressState();
UploadModule.BindProgressState(postBackID, barID, progressState);
if (progressState.Status == UploadStatus.Unknown)
{
// Status is unknown, so try to find the last post back based on the lastPostBackID param.
// If successful, use the status of the last post back.
string lastPostBackID = Page.Request.Params["lastPostBackID"];
if (lastPostBackID != null && lastPostBackID.Length > 0 && Page.Request.Params["refresher"] == null)
{
UploadModule.BindProgressState(lastPostBackID, barID, progressState);
if (progressState.FileBytesRead == 0 &&
progressState.ProcessingState == null)
{
progressState.Status = UploadStatus.Unknown;
}
}
}
Status = progressState.Status;
ProgressInfo progress = null;
progress = (ProgressInfo)progressState.ProcessingState;
if (progress != null && Status == UploadStatus.Completed)
{
Status = UploadStatus.ProcessingCompleted;
}
Attributes["status"] = Status.ToString();
if (WhenStatus != null)
{
string[] matchingStatuses = WhenStatus.Split(' ');
if (Array.IndexOf(matchingStatuses, Status.ToString()) == -1)
{
this.Visible = false;
}
}
}
/// <summary>
/// Fills in an <see cref="IUploadProgressState"/> object with the progress state for
/// a given post-back ID and control UniqueID.
/// </summary>
/// <param name="postBackID">
/// The post-back ID for which the progress state should be retrieved.
/// </param>
/// <param name="controlUniqueID">
/// The UniqueID of the control for which the processing state should be retrieved,
/// or null to retrieve progress state without processing state.
/// </param>
/// <param name="progressState">
/// A <see cref="IUploadProgressState"/> to be filled in with the progress state
/// for the given post-back ID and control UniqueID.
/// </param>
/// <remarks>The progress state is cached for the length of the current request to
/// ensure consistency across multiple calls during a single request and to reduce
/// the number of calls made
/// to the underlying <see cref="IUploadModule"/> implementation since some
/// implementations might need to access the network to determine the
/// progress state.</remarks>
public static void BindProgressState(string postBackID, string controlUniqueID, IUploadProgressState progressState)
{
HttpContext ctx = HttpContext.Current;
if (ctx == null)
{
InstalledModule.BindProgressState(postBackID, controlUniqueID, progressState);
return;
}
string cacheKey = String.Format("NeatUpload_cachedProgressState_{0}-{1}", postBackID, controlUniqueID);
UploadProgressState cachedProgressState = ctx.Items[cacheKey] as Internal.UI.UploadProgressState;
if (cachedProgressState == null)
{
cachedProgressState = new UploadProgressState();
InstalledModule.BindProgressState(postBackID, controlUniqueID, cachedProgressState);
ctx.Items[cacheKey] = cachedProgressState;
}
UploadProgressState.Copy(cachedProgressState, progressState);
}
private void Control_PreRender(object sender, EventArgs args)
{
if (IsDesignTime) return;
// Find the current upload context
string postBackID = Page.Request.Params["postBackID"];
string barID = Page.Request.Params["barID"];
// Set the status to Cancelled if requested.
if (Page.Request.Params["cancelled"] == "true")
{
UploadModule.CancelPostBack(postBackID);
}
IUploadProgressState progressState = new UploadProgressState();
UploadModule.BindProgressState(postBackID, barID, progressState);
if (progressState.Status == UploadStatus.Unknown)
{
// Status is unknown, so try to find the last post back based on the lastPostBackID param.
// If successful, use the status of the last post back.
string lastPostBackID = Page.Request.Params["lastPostBackID"];
if (lastPostBackID != null && lastPostBackID.Length > 0 && Page.Request.Params["refresher"] == null)
{
UploadModule.BindProgressState(lastPostBackID, barID, progressState);
if (progressState.FileBytesRead == 0
&& progressState.ProcessingState == null)
{
progressState.Status = UploadStatus.Unknown;
}
}
}
Status = progressState.Status;
ProgressInfo progress = null;
progress = (ProgressInfo)progressState.ProcessingState;
if (progress != null && Status == UploadStatus.Completed)
{
Status = UploadStatus.ProcessingCompleted;
}
Attributes["status"] = Status.ToString();
if (WhenStatus != null)
{
string[] matchingStatuses = WhenStatus.Split(' ');
if (Array.IndexOf(matchingStatuses, Status.ToString()) == -1)
{
this.Visible = false;
}
}
}
public MediaUploadProgressChangedEventArgs(UploadProgressState state, long numberOfBytesUploaded, long totalOfBytesToUpload) : base(numberOfBytesUploaded, totalOfBytesToUpload)
{
State = state;
NumberOfBytesUploaded = numberOfBytesUploaded;
TotalOfBytesToUpload = totalOfBytesToUpload;
}
/// <summary>
/// Fills in an <see cref="IUploadProgressState"/> object with the progress state for
/// a given post-back ID and control UniqueID.
/// </summary>
/// <param name="postBackID">
/// The post-back ID for which the progress state should be retrieved.
/// </param>
/// <param name="controlUniqueID">
/// The UniqueID of the control for which the progress state should be retrieved.
/// </param>
/// <param name="progressState">
/// A <see cref="IUploadProgressState"/> to be filled in with the progress state
/// for the given post-back ID and control UniqueID.
/// </param>
/// <remarks>The progress state is cached for the length of the current request to
/// ensure consistency across multiple calls during a single request and to reduce
/// the number of calls made
/// to the underlying <see cref="IUploadModule"/> implementation since some
/// implementations might need to access the network to determine the
/// progress state.</remarks>
public static void BindProgressState(string postBackID, string controlUniqueID, IUploadProgressState progressState)
{
HttpContext ctx = HttpContext.Current;
if (ctx != null)
{
InstalledModule.BindProgressState(postBackID, controlUniqueID, progressState);
return;
}
string cacheKey = String.Format("NeatUpload_cachedProgressState_{0}-{1}", postBackID, controlUniqueID);
UploadProgressState cachedProgressState = ctx.Items[cacheKey] as Internal.UI.UploadProgressState;
if (cachedProgressState == null)
{
cachedProgressState = new UploadProgressState();
InstalledModule.BindProgressState(postBackID, controlUniqueID, cachedProgressState);
ctx.Items[cacheKey] = cachedProgressState;
}
UploadProgressState.Copy(cachedProgressState, progressState);
}
public UploadStateChangedEventArgs(UploadProgressState state, long numberOfBytesUploaded, long totalOfBytesToUpload)
{
State = state;
NumberOfBytesUploaded = numberOfBytesUploaded;
TotalOfBytesToUpload = totalOfBytesToUpload;
}
