1
我創建了一個每月打印的FixedDocument報告。它的平均長度約爲350頁，大約一半的頁面是〜200kb的jpeg圖像。該報告在DocumentViewer中很好地顯示，但在嘗試打印時遇到問題。WPF打印大型報告導致OutOfMemoryException
當使用
DocumentViewer1.Print()
如果我只是嘗試和打印個月的數據如的前三分之一。它120頁，它工作正常。 但如果我嘗試了整整一個月，在大約第160頁我收到以下錯誤
System.OutOfMemoryException: Insufficient memory to continue the execution
of the program.
at System.Windows.Media.Imaging.BitmapSource.CriticalCopyPixels(Int32Rect
sourceRect, IntPtr buffer, Int32 bufferSize, Int32 stride)
at System.Windows.Media.Imaging.BitmapSource.CriticalCopyPixels(Int32Rect
sourceRect, Array pixels, Int32 stride, Int32 offset)
at Microsoft.Internal.GDIExporter.CGDIBitmap.Load(BitmapSource pBitmap,
Byte[] buffer, PixelFormat LoadFormat)
at
Microsoft.Internal.GDIExporter.CGDIRenderTarget.DrawBitmap(BitmapSource
pImage, Byte[] buffer, Rect rectDest)
at Microsoft.Internal.GDIExporter.CGDIRenderTarget.DrawImage(BitmapSource
source, Byte[] buffer, Rect rect)
at
Microsoft.Internal.AlphaFlattener.BrushProxyDecomposer.Microsoft.Internal.Al
phaFlattener.IProxyDrawingContext.DrawImage(ImageProxy image, Rect dest,
Geometry clip, Matrix trans)
at
Microsoft.Internal.AlphaFlattener.PrimitiveRenderer.RenderImage(ImageProxy
image, Rect dest, Geometry bounds, Boolean clipToBounds, Int32 start, Matrix
trans, String desp)
at
Microsoft.Internal.AlphaFlattener.PrimitiveRenderer.RenderImage(ImageProxy
image, Rect dest, Geometry clip, Matrix trans, String desp)
at Microsoft.Internal.AlphaFlattener.Flattener.AlphaRender(Primitive
primitive, List`1 overlapping, Int32 overlapHasTransparency, Boolean
disjoint, String desp)
at
Microsoft.Internal.AlphaFlattener.Flattener.AlphaFlatten(IProxyDrawingContex
t dc, Boolean disjoint)
at Microsoft.Internal.AlphaFlattener.Flattener.Convert(Primitive tree,
ILegacyDevice dc, Double width, Double height, Double dpix, Double dpiy,
Nullable`1 quality)
at Microsoft.Internal.AlphaFlattener.MetroDevice0.FlushPage(ILegacyDevice
sink, Double width, Double height, Nullable`1 outputQuality)
at Microsoft.Internal.AlphaFlattener.MetroToGdiConverter.FlushPage()
at
System.Windows.Xps.Serialization.NgcSerializationManagerAsync.EndPage()
at
System.Windows.Xps.Serialization.NgcFixedPageSerializerAsync.EndPersistObjec
tData(Boolean isManualStartDoc)
at
System.Windows.Xps.Serialization.NgcFixedPageSerializerAsync.AsyncOperation(
NGCSerializerContext context)
at
System.Windows.Xps.Serialization.NgcSerializationManagerAsync.InvokeSaveAsXa
mlWorkItem(Object arg)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate
callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object
source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at
System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object
state)
at System.Threading.ExecutionContext.runTryCode(Object userData)
at
System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedClea
nup(TryCode code, CleanupCode backoutCode, Object userData)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext
executionContext, ContextCallback callback, Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback callback, Object state, Boolean
ignoreSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32
msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam,
IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate
callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object
source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority
priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr
wParam, IntPtr lParam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at
System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.Unsaf
eNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID,
Int32 reason, Int32 pvLoopData)
at
System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32
reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32
reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(ApplicationContext context)
at
Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun(
)
at
Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoAppl
icationModel()
我當時以爲由文檔分成小30頁我想通過只是一次打印30頁戰勝它的方法文件使用：
Dim dlg = New PrintDialog()
If dlg.ShowDialog() = True Then
Dim PageCounter As Int32 = 0
Dim ListOfDocs As New List(Of FixedDocument)
Dim CurrentFixedDoc As New FixedDocument
For Each FixedSizePag As FixedPage In PrintListOfPages
Dim FixedSizedPageConten As PageContent = New PageContent
CType(FixedSizedPageConten, IAddChild).AddChild(FixedSizePag)
CurrentFixedDoc.Pages.Add(FixedSizedPageConten)
PageCounter = PageCounter + 1
If PageCounter >= 30 Then
ListOfDocs.Add(CurrentFixedDoc)
PageCounter = 0
CurrentFixedDoc = New FixedDocument
End If
Next
If CurrentFixedDoc.Pages.Count > 0 Then
ListOfDocs.Add(CurrentFixedDoc)
End If
For Each docum In ListOfDocs
dlg.PrintDocument(docum.DocumentPaginator, "Testing - Part " & (ListOfDocs.IndexOf(docum) + 1) & " of " & ListOfDocs.Count)
Next
End If
但是，這只是造成了完全相同的錯誤。我已經嘗試從中點開始打印一百頁，並且在月末之前就可以打印，因此它必須是頁面的大小而不是特定的圖像（圖像僅來自一個源，最大尺寸爲400kb）。
觀看的內存量，同時在打印時30頁使用我看到
Start = 96Mb
30 pages = 367Mb
60 pages = 588Mb
90 pages = 825Mb
120 pages = 1003Mb
150 pages = 1238Mb
則下一批崩潰在1281Mb
我真正的打印機和XPS上測試windows打印機。當我記下這些內存值時，我一直等到每個部分完全被假脫機打印。
我不明白爲什麼當我將它們分解爲單獨的單獨文檔時，它就像這樣建立起來。我必須處理一些東西，但我不確定是什麼？
我甚至試過GC.Collect的（） GC.WaitForPendingFinalizers（）仍然會產生同樣的錯誤。有任何想法嗎？ – SpeedBird527 2012-03-31 09:44:47
我們有類似的問題......您是否找到任何解決方法？ – Mike 2012-08-23 10:46:29