First of all, I want to say thank you to both of you guys.
Secondly I would like to apologies for my stupidity, cause I didn't check correctly where precisly exception occures. It turns out (when I was fighting today with this problem) that it doesn't shows when RenderDocument() is called but when Save() on the rendered document is performed. Snipped of code
Code:
PdfDocumentRenderer renderer = new PdfDocumentRenderer(true, PdfSharp.Pdf.PdfFontEmbedding.Always);
renderer.Document = document;
renderer.RenderDocument();
using (MemoryStream ms = new MemoryStream())
{
renderer.PdfDocument.Save(ms, false); <-- HERE IT FAILS
byte[] buffer = new byte[ms.Length];
ms.Seek(0, SeekOrigin.Begin);
ms.Flush();
ms.Read(buffer, 0, (int)ms.Length);
Response.Clear();
Response.AddHeader("Content-disposition", "attachment; filename=" + string.Format("Raport z dnia {0}.pdf", DateTime.Now.ToString("dd-MM-yyyy")));
Response.ContentType = "application/octet-stream";
Response.BinaryWrite(ms.ToArray());
Response.End();
}
renderer.Document = document;
renderer.RenderDocument();
using (MemoryStream ms = new MemoryStream())
{
renderer.PdfDocument.Save(ms, false); <-- HERE IT FAILS
byte[] buffer = new byte[ms.Length];
ms.Seek(0, SeekOrigin.Begin);
ms.Flush();
ms.Read(buffer, 0, (int)ms.Length);
Response.Clear();
Response.AddHeader("Content-disposition", "attachment; filename=" + string.Format("Raport z dnia {0}.pdf", DateTime.Now.ToString("dd-MM-yyyy")));
Response.ContentType = "application/octet-stream";
Response.BinaryWrite(ms.ToArray());
Response.End();
}
I was able to track this exception as deep as I could in the PdfSharp library and I've reached some recursive code that is the cause (I can tell because some breakpoints that I've putted were never reached).
Code:
void TransitiveClosureImplementation(Dictionary<PdfItem, object> objects, PdfObject pdfObject, ref int depth)
{
if (depth-- == 0)
return;
try
{
nestingLevel++;
if (nestingLevel >= 1000)
{
//Debug.WriteLine(String.Format("Nestinglevel={0}", nestingLevel));
//GetType();
if (!this.overflow.ContainsKey(pdfObject))
this.overflow.Add(pdfObject, null);
return;
}
#if DEBUG_
//enterCount++;
if (enterCount == 5400)
GetType();
//if (!Object.ReferenceEquals(pdfObject.Owner, this.document))
// GetType();
//////Debug.Assert(Object.ReferenceEquals(pdfObject27.Document, this.document));
// if (item is PdfObject && ((PdfObject)item).ObjectID.ObjectNumber == 5)
// Debug.WriteLine("items: " + ((PdfObject)item).ObjectID.ToString());
//if (pdfObject.ObjectNumber == 5)
// GetType();
#endif
IEnumerable enumerable = null; //(IEnumerator)pdfObject;
if (pdfObject is PdfDictionary)
enumerable = ((PdfDictionary)pdfObject).Elements.Values;
else if (pdfObject is PdfArray)
enumerable = ((PdfArray)pdfObject).Elements;
if (enumerable != null)
{
foreach (PdfItem item in enumerable)
{
PdfReference iref = item as PdfReference;
if (iref != null)
{
// Is this an indirect reference to an object that not exists?
//if (iref.Document == null)
//{
// Debug.WriteLine("Dead object dedected: " + iref.ObjectID.ToString());
// PdfReference dead = DeadObject;
// iref.ObjectID = dead.ObjectID;
// iref.Document = this.document;
// iref.SetObject(dead.Value);
// PdfDictionary dict = (PdfDictionary)dead.Value;
//
// dict.Elements["/DeadObjectCount"] =
// new PdfInteger(dict.Elements.GetInteger("/DeadObjectCount") + 1);
//
// iref = dead;
//}
if (!Object.ReferenceEquals(iref.Document, this.document))
{
GetType();
Debug.WriteLine(String.Format("Bad iref: {0}", iref.ObjectID.ToString()));
}
Debug.Assert(Object.ReferenceEquals(iref.Document, this.document) || iref.Document == null, "External object detected!");
#if DEBUG
if (iref.ObjectID.ObjectNumber == 23)
GetType();
#endif
if (!objects.ContainsKey(iref))
{
PdfObject value = iref.Value;
// Ignore unreachable objets
if (iref.Document != null)
{
// ... from trailer hack
if (value == null)
{
iref = this.objectTable[iref.ObjectID];
Debug.Assert(iref.Value != null);
value = iref.Value;
}
Debug.Assert(Object.ReferenceEquals(iref.Document, this.document));
objects.Add(iref, null);
//Debug.WriteLine(String.Format("objects.Add('{0}', null);", iref.ObjectID.ToString()));
if (value is PdfArray || value is PdfDictionary)
TransitiveClosureImplementation(objects, value, ref depth); <-- RECURSIVE
}
//else
//{
// objects2.Add(this[iref.ObjectID], null);
//}
}
}
else
{
PdfObject pdfObject28 = item as PdfObject;
//if (pdfObject28 != null)
// Debug.Assert(Object.ReferenceEquals(pdfObject28.Document, this.document));
if (pdfObject28 != null && (pdfObject28 is PdfDictionary || pdfObject28 is PdfArray))
TransitiveClosureImplementation(objects, pdfObject28, ref depth); <-- RECURSIVE
}
}
}
}
finally
{
nestingLevel--;
}
}
{
if (depth-- == 0)
return;
try
{
nestingLevel++;
if (nestingLevel >= 1000)
{
//Debug.WriteLine(String.Format("Nestinglevel={0}", nestingLevel));
//GetType();
if (!this.overflow.ContainsKey(pdfObject))
this.overflow.Add(pdfObject, null);
return;
}
#if DEBUG_
//enterCount++;
if (enterCount == 5400)
GetType();
//if (!Object.ReferenceEquals(pdfObject.Owner, this.document))
// GetType();
//////Debug.Assert(Object.ReferenceEquals(pdfObject27.Document, this.document));
// if (item is PdfObject && ((PdfObject)item).ObjectID.ObjectNumber == 5)
// Debug.WriteLine("items: " + ((PdfObject)item).ObjectID.ToString());
//if (pdfObject.ObjectNumber == 5)
// GetType();
#endif
IEnumerable enumerable = null; //(IEnumerator)pdfObject;
if (pdfObject is PdfDictionary)
enumerable = ((PdfDictionary)pdfObject).Elements.Values;
else if (pdfObject is PdfArray)
enumerable = ((PdfArray)pdfObject).Elements;
if (enumerable != null)
{
foreach (PdfItem item in enumerable)
{
PdfReference iref = item as PdfReference;
if (iref != null)
{
// Is this an indirect reference to an object that not exists?
//if (iref.Document == null)
//{
// Debug.WriteLine("Dead object dedected: " + iref.ObjectID.ToString());
// PdfReference dead = DeadObject;
// iref.ObjectID = dead.ObjectID;
// iref.Document = this.document;
// iref.SetObject(dead.Value);
// PdfDictionary dict = (PdfDictionary)dead.Value;
//
// dict.Elements["/DeadObjectCount"] =
// new PdfInteger(dict.Elements.GetInteger("/DeadObjectCount") + 1);
//
// iref = dead;
//}
if (!Object.ReferenceEquals(iref.Document, this.document))
{
GetType();
Debug.WriteLine(String.Format("Bad iref: {0}", iref.ObjectID.ToString()));
}
Debug.Assert(Object.ReferenceEquals(iref.Document, this.document) || iref.Document == null, "External object detected!");
#if DEBUG
if (iref.ObjectID.ObjectNumber == 23)
GetType();
#endif
if (!objects.ContainsKey(iref))
{
PdfObject value = iref.Value;
// Ignore unreachable objets
if (iref.Document != null)
{
// ... from trailer hack
if (value == null)
{
iref = this.objectTable[iref.ObjectID];
Debug.Assert(iref.Value != null);
value = iref.Value;
}
Debug.Assert(Object.ReferenceEquals(iref.Document, this.document));
objects.Add(iref, null);
//Debug.WriteLine(String.Format("objects.Add('{0}', null);", iref.ObjectID.ToString()));
if (value is PdfArray || value is PdfDictionary)
TransitiveClosureImplementation(objects, value, ref depth); <-- RECURSIVE
}
//else
//{
// objects2.Add(this[iref.ObjectID], null);
//}
}
}
else
{
PdfObject pdfObject28 = item as PdfObject;
//if (pdfObject28 != null)
// Debug.Assert(Object.ReferenceEquals(pdfObject28.Document, this.document));
if (pdfObject28 != null && (pdfObject28 is PdfDictionary || pdfObject28 is PdfArray))
TransitiveClosureImplementation(objects, pdfObject28, ref depth); <-- RECURSIVE
}
}
}
}
finally
{
nestingLevel--;
}
}
I've followed dheijl advice and..IT WORKED! THANK YOU! I've changed like you said true to false and now it's working lika a charm. No recursion, no problem
. Thank you once again.