C# - PdfSharp - NullReferenceException
-3
I have the problem that my code (using PdfSharp) is thworing an "NullReferenceException" at the point
outputDocument.AddPage(page);
and I dont know why. You can find a snippet of my code with the important things below:
public static void CreatePDFx(string path)
{
// Files beinhaltet alle Dateien pro Patientenordner (Bezeichnungen)
string files = GetFiles(path);
// Open the output document
PdfDocument outputDocument = new PdfDocument();
int numberOfDocs = 0;
// Iterate files
foreach (string file in files)
{
// Open the document to import pages from it.
PdfDocument inputDocument = PdfReader.Open(file, PdfDocumentOpenMode.Import);
// Iterate pages
int count = inputDocument.PageCount;
for (int idx = 0; idx < count; idx++)
{
// Get the page from the external document...
PdfPage page = inputDocument.Pages[idx];
// ...and add it to the output document.
outputDocument.AddPage(page);
}
}
}
public static void StartWatchers()
{
List<FileSystemWatcher> watchers = new List<FileSystemWatcher>();
string ward_folders = Directory.GetDirectories(@"C:OfflineDocuments");
watchers.Add(MyWatcherFatory(@"C:OfflineDocuments"));
//Fehlerhaft
int j = 0;
foreach (string ward_folder in ward_folders)
{
j++;
string pat_folders = Directory.GetDirectories(ward_folder);
int i = 0;
foreach (string pat_folder in pat_folders)
{
CreatePDFx(pat_folder);
i++;
}
foreach (FileSystemWatcher watcher in watchers)
{
watcher.EnableRaisingEvents = true; ;
i++;
}
}
}
-Ausnahme ausgelöst: 'System.NullReferenceException' in PdfSharp.dll ("Object reference not set to an instance of an object.") System.NullReferenceException
with link to (PdfDocuments.cs):
/// <summary>
/// Gets the PdfCatalog of the current document.
/// </summary>
internal PdfCatalog Catalog
{
get { return _catalog ?? (_catalog = _trailer.Root); }
}
c# pdf
asked Jan 19 at 11:54
dankoedankoe
12
add a comment |
-3
I have the problem that my code (using PdfSharp) is thworing an "NullReferenceException" at the point
outputDocument.AddPage(page);
and I dont know why. You can find a snippet of my code with the important things below:
public static void CreatePDFx(string path)
{
// Files beinhaltet alle Dateien pro Patientenordner (Bezeichnungen)
string files = GetFiles(path);
// Open the output document
PdfDocument outputDocument = new PdfDocument();
int numberOfDocs = 0;
// Iterate files
foreach (string file in files)
{
// Open the document to import pages from it.
PdfDocument inputDocument = PdfReader.Open(file, PdfDocumentOpenMode.Import);
// Iterate pages
int count = inputDocument.PageCount;
for (int idx = 0; idx < count; idx++)
{
// Get the page from the external document...
PdfPage page = inputDocument.Pages[idx];
// ...and add it to the output document.
outputDocument.AddPage(page);
}
}
}
public static void StartWatchers()
{
List<FileSystemWatcher> watchers = new List<FileSystemWatcher>();
string ward_folders = Directory.GetDirectories(@"C:OfflineDocuments");
watchers.Add(MyWatcherFatory(@"C:OfflineDocuments"));
//Fehlerhaft
int j = 0;
foreach (string ward_folder in ward_folders)
{
j++;
string pat_folders = Directory.GetDirectories(ward_folder);
int i = 0;
foreach (string pat_folder in pat_folders)
{
CreatePDFx(pat_folder);
i++;
}
foreach (FileSystemWatcher watcher in watchers)
{
watcher.EnableRaisingEvents = true; ;
i++;
}
}
}
-Ausnahme ausgelöst: 'System.NullReferenceException' in PdfSharp.dll ("Object reference not set to an instance of an object.") System.NullReferenceException
with link to (PdfDocuments.cs):
/// <summary>
/// Gets the PdfCatalog of the current document.
/// </summary>
internal PdfCatalog Catalog
{
get { return _catalog ?? (_catalog = _trailer.Root); }
}
c# pdf
asked Jan 19 at 11:54
dankoedankoe
12
3
Please include the full stack trace of the exception.
– mjwills
Jan 19 at 11:55
Possible duplicate of What is a NullReferenceException, and how do I fix it?
– BJ Myers
Jan 19 at 22:08
add a comment |
-3
-3
-3
I have the problem that my code (using PdfSharp) is thworing an "NullReferenceException" at the point
outputDocument.AddPage(page);
and I dont know why. You can find a snippet of my code with the important things below:
public static void CreatePDFx(string path)
{
// Files beinhaltet alle Dateien pro Patientenordner (Bezeichnungen)
string files = GetFiles(path);
// Open the output document
PdfDocument outputDocument = new PdfDocument();
int numberOfDocs = 0;
// Iterate files
foreach (string file in files)
{
// Open the document to import pages from it.
PdfDocument inputDocument = PdfReader.Open(file, PdfDocumentOpenMode.Import);
// Iterate pages
int count = inputDocument.PageCount;
for (int idx = 0; idx < count; idx++)
{
// Get the page from the external document...
PdfPage page = inputDocument.Pages[idx];
// ...and add it to the output document.
outputDocument.AddPage(page);
}
}
}
public static void StartWatchers()
{
List<FileSystemWatcher> watchers = new List<FileSystemWatcher>();
string ward_folders = Directory.GetDirectories(@"C:OfflineDocuments");
watchers.Add(MyWatcherFatory(@"C:OfflineDocuments"));
//Fehlerhaft
int j = 0;
foreach (string ward_folder in ward_folders)
{
j++;
string pat_folders = Directory.GetDirectories(ward_folder);
int i = 0;
foreach (string pat_folder in pat_folders)
{
CreatePDFx(pat_folder);
i++;
}
foreach (FileSystemWatcher watcher in watchers)
{
watcher.EnableRaisingEvents = true; ;
i++;
}
}
}
-Ausnahme ausgelöst: 'System.NullReferenceException' in PdfSharp.dll ("Object reference not set to an instance of an object.") System.NullReferenceException
with link to (PdfDocuments.cs):
/// <summary>
/// Gets the PdfCatalog of the current document.
/// </summary>
internal PdfCatalog Catalog
{
get { return _catalog ?? (_catalog = _trailer.Root); }
}
c# pdf
asked Jan 19 at 11:54
dankoedankoe
12
I have the problem that my code (using PdfSharp) is thworing an "NullReferenceException" at the point
outputDocument.AddPage(page);
and I dont know why. You can find a snippet of my code with the important things below:
public static void CreatePDFx(string path)
{
// Files beinhaltet alle Dateien pro Patientenordner (Bezeichnungen)
string files = GetFiles(path);
// Open the output document
PdfDocument outputDocument = new PdfDocument();
int numberOfDocs = 0;
// Iterate files
foreach (string file in files)
{
// Open the document to import pages from it.
PdfDocument inputDocument = PdfReader.Open(file, PdfDocumentOpenMode.Import);
// Iterate pages
int count = inputDocument.PageCount;
for (int idx = 0; idx < count; idx++)
{
// Get the page from the external document...
PdfPage page = inputDocument.Pages[idx];
// ...and add it to the output document.
outputDocument.AddPage(page);
}
}
}
public static void StartWatchers()
{
List<FileSystemWatcher> watchers = new List<FileSystemWatcher>();
string ward_folders = Directory.GetDirectories(@"C:OfflineDocuments");
watchers.Add(MyWatcherFatory(@"C:OfflineDocuments"));
//Fehlerhaft
int j = 0;
foreach (string ward_folder in ward_folders)
{
j++;
string pat_folders = Directory.GetDirectories(ward_folder);
int i = 0;
foreach (string pat_folder in pat_folders)
{
CreatePDFx(pat_folder);
i++;
}
foreach (FileSystemWatcher watcher in watchers)
{
watcher.EnableRaisingEvents = true; ;
i++;
}
}
}
-Ausnahme ausgelöst: 'System.NullReferenceException' in PdfSharp.dll ("Object reference not set to an instance of an object.") System.NullReferenceException
with link to (PdfDocuments.cs):
/// <summary>
/// Gets the PdfCatalog of the current document.
/// </summary>
internal PdfCatalog Catalog
{
get { return _catalog ?? (_catalog = _trailer.Root); }
}
c# pdf
c# pdf
asked Jan 19 at 11:54
dankoedankoe
12
asked Jan 19 at 11:54
dankoedankoe
12
edited Jan 19 at 12:29
dankoe
asked Jan 19 at 11:54
dankoedankoe
12
asked Jan 19 at 11:54
dankoedankoe
12
asked Jan 19 at 11:54
dankoedankoe
12
12
3
Please include the full stack trace of the exception.
– mjwills
Jan 19 at 11:55
Possible duplicate of What is a NullReferenceException, and how do I fix it?
– BJ Myers
Jan 19 at 22:08
add a comment |
3
Please include the full stack trace of the exception.
– mjwills
Jan 19 at 11:55
Possible duplicate of What is a NullReferenceException, and how do I fix it?
– BJ Myers
Jan 19 at 22:08
3
3
Please include the full stack trace of the exception.
– mjwills
Jan 19 at 11:55
Please include the full stack trace of the exception.
– mjwills
Jan 19 at 11:55
Possible duplicate of What is a NullReferenceException, and how do I fix it?
– BJ Myers
Jan 19 at 22:08
Possible duplicate of What is a NullReferenceException, and how do I fix it?
– BJ Myers
Jan 19 at 22:08
add a comment |
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3
Please include the full stack trace of the exception.
– mjwills
Jan 19 at 11:55
Possible duplicate of What is a NullReferenceException, and how do I fix it?
– BJ Myers
Jan 19 at 22:08