void s_ItemEvent(ItemEventArgs e)
{
//If you throw an exception here, the job will fail. It's probably better to set e.Cancel.
if (HttpContext.Current == null) return; //When using async mode, there is no session, no request, nothing. You can send e-mails and hit the database using web.config settings.
Response.Write("\n\n" + e.ToString());
//This is normally where you would update the database on the job progress. You can also use this to cancel the job by setting e.Cancel= true;
double percentComplete = (e.Stats.FailedItems + e.Stats.SuccessfulItems) / e.Stats.RequestedItems * 100;
Response.Write("\n" + Math.Round(percentComplete) + "% complete");
//Note, however, on a live server, that opening a file for writing may take much longer than reading, thus
//even 90% of elapsed time could occur before the first item is resized. This is very much an I/O bound process, and
//calculting a percentage complete is nearly worthless on a live server.
}
/// <summary>
/// Called when ZipFile.AddEntry fails. (Most errors should NOT happen here).
/// </summary>
/// <param name="i"></param>
/// <param name="ex"></param>
private void ItemFailed(BatchResizeItem i, Exception ex)
{
failedItems++;
//Fire off the event
ItemEventArgs args = new ItemEventArgs(s.jobId, new ItemResult(i,false, ex), GetJobStats());
s.FireItemEvent(args);
//Store for later
results.Add(args.Result);
//If a cancel is requested, fire an execption for Work to catch.
throw new JobCancelledException("An event handler requested that the job be cancelled. The event handler was sent notification " +
"that an item (\"" + i.TargetFilename +"\") could not be added to the zip file.",ex);
}
/// <summary>
/// Called when an error occurs during Save() (Whitch executes WriteItemCallback)
/// </summary>
/// <param name="e"></param>
private void ItemFailed(ZipErrorEventArgs e)
{
failedItems++;
e.CurrentEntry.ZipErrorAction = ZipErrorAction.Skip; //Prevent the item from crashing the job.
BatchResizeItem i = items[e.CurrentEntry.FileName];
Exception ex = e.Exception;
//Fire off the event again..
ItemEventArgs args = new ItemEventArgs(s.jobId, new ItemResult(i,false, ex), GetJobStats());
s.FireItemEvent(args);
//Store for later
results.Add(args.Result);
//If an event handler wants to cancel the job, do so.
if (args.Cancel) e.Cancel = true;
}
private void ItemCompleted(SaveProgressEventArgs e)
{
successfulItems++;
BatchResizeItem i = items[e.CurrentEntry.FileName];
//Fire off the event again..
ItemEventArgs args = new ItemEventArgs(s.jobId, new ItemResult(i, true, null), GetJobStats());
s.FireItemEvent(args);
//Store for later
results.Add(args.Result);
//If an event handler wants to cancel the job, do so.
if (args.Cancel) e.Cancel = true;
}
protected internal void FireItemEvent(ItemEventArgs e)
{
if (ItemEvent != null) ItemEvent(e);
}
void s_ItemEvent(ItemEventArgs e)
{
var itemDone = e.Result;
bwResizeBatch.ReportProgress(0);
}
