Boring and Useless

Silverlight – File not found

boringanduseless — Wed, 21 Apr 2010 09:32:48 +0000

If you don’t keep the default .aspx start page for your hosting web project around and get the dreaded “File not found” exception without any further information or context then just delete your projects .user files and execute “Set as Start Page” on your custom start page.

Silverlight ComboBox

boringanduseless — Fri, 09 Apr 2010 15:52:06 +0000

Ridiculous but true: the SelectedItem attribute of a ComboBox declaration in XAML HAS TO be behind the ItemsSource attribute or it won’t work.

Binding to the “current” element in an ItemTemplate..

boringanduseless — Thu, 01 Apr 2010 21:56:31 +0000

works like this “{Binding}” or this “{Binding Path=.}”.

Baseclass to implement ‘INotifyPropertyChanged’

boringanduseless — Thu, 01 Apr 2010 08:41:38 +0000

public class AViewModel : INotifyPropertyChanged

{

public event PropertyChangedEventHandler PropertyChanged;

protected void RaisePropertyChanged(Expression> exp)

{

MemberExpression memberExpression = (MemberExpression)exp.Body;

string propertyName = memberExpression.Member.Name;

if (PropertyChanged != null)

{

PropertyChanged(this, new PropertyChangedEventArgs(propertyName));

}

Dependency Properties in Silverlight/WPF

boringanduseless — Thu, 01 Apr 2010 06:57:28 +0000

Always use the callback if you need additional logic for the setter of a dependency property. This is a must in Silverlight and WPF.

As far as I know, the Setter would only be called when actually used from code. When you do Binding, things happen using the DependencyProperty framework.

Finding Memory Issues in .NET

boringanduseless — Mon, 21 Sep 2009 19:56:13 +0000

Links

http://geekswithblogs.net/robp/archive/2008/08/07/speedy-c-part-2-optimizing-memory-allocations—pooling-and.aspx

http://blogs.msdn.com/mvstanton/default.aspx

http://blogs.msdn.com/dancre/archive/2005/11/08/490715.aspx

SOS-Debuging-Erweiterung

Debugger laden: .load sos.dll (enable unmanaged debugging in the project’s settings)
In WinDbg laden: .loadby sos mscorwks
Referenz: http://msdn.microsoft.com/en-us/library/bb190764.aspx
alle Objekte anzeigen: !DumpHeap
!eeheap -gc
Objekt an [adresse] anzeigen: !do [adresse]
Heapstatistik anzeigen: !DumpHeap -stat
MT-Adresse eines bestimmten Typs finden: !Name2EE * [voll-qualifizierter Name des Typs]
Objekte eines Typs ausgebSen: !DumpHeap -MT [MT-Adresse des Typs]
Objekte eines Typs ausgeben: !DumpHeap -type [Name des Typs / kann auch nur ein Teil sein]
Nur Teile des Heaps ausgeben: !DumpHeap [Startadresse] [Endadresse] oder dd [Start] [Ende]
Objekte ab einer bestimmten Größe dumpen: !SOS.DumpHeap -min 85000
Objekte mit Finalizer: !FinalizeQueue [-detail]
Größe eines Objektes mit Kindern ausgeben: !ObjSize [adresse]
Dump Heap to file: !TraverseHeap c:\memory.log
Check for Corruption: !VerifyHeap
GCHandle-Statistiken: !GCHandles
GCHandle-Leaks finden: !GCHandleLeaks
Referenziertes Objekt anschauen: !do poi([adresse])
Anzahl geladener Assemblies ausgeben: !DumpHeap -stat -type Assembly
AppDomain dumpen: !DumpDomain
Modul/Assembly dumpen: !DumpModule [adresse]
Heap-Content dumpen: dc [start] [end]
Dyn. Assemblies anzeigen: !DumpDynamicAssemblies