I’m going to experiment with this. Most likely the quality of the code samples will be the biggest factor in like/dislike result.
–jeroen
Archive for the ‘C# 3.0’ Category
Developer Assistant for Visual Studio with access to millions of code samples- via: Google+
Posted by jpluimers on 2015/04/02
Posted in .NET, .NET 3.0, .NET 3.5, .NET 4.0, .NET 4.5, C#, C# 3.0, C# 4.0, C# 5.0, C# 6 (Roslyn), Development, Software Development, Visual Studio 2010, Visual Studio 2013, Visual Studio 2014, Visual Studio and tools | 1 Comment »
.NET threading: native and managed thread IDs do not per se correlate
Posted by jpluimers on 2015/03/26
Next time I run into .NET and native threading issues:
Main UI threads often have a correlation between managed and native thread IDs.
But for other threads, you cannot be really sure.
Some background articles on this:
- Threading deep dive – Day 9 – My Adventures with Microsoft Technologies – Site Home – MSDN Blogs: what happens when you have short-lived managed threads.
- Threads, fibers, stacks and address space – cbrumme’s WebLog – Site Home – MSDN Blogs: multiple managed threads might map to the same native thread.
- Win32 native threads and .Net AppDomains – Ars Technica OpenForum.
- c# – How do I get the _real_ thread id in a CLR “friendly” way? – Stack Overflow: It’s perfectly legal from a CLR perspective for a single managed thread to be backed by several different native threads during it’s lifetime.
- Native vs Managed Threads.
- c# – Getting the thread ID from a thread – Stack Overflow: You don’t synchronize on ID’s though, you use synchronization primitives like mutexes. This is only for debugging purposes.
- c# – Relationship between ManagedThreadID and Operating System ThreadID – Stack Overflow.
- .net – AppDomain.GetCurrentThreadID vs Thread.ManagedThreadID for Windows API calls? – Stack Overflow: There are also System.Threading.Thread.BeginThreadAffinity() / EndThreadAffinity() functions that purportedly stop the VM from switching between different physical threads.
–jeroen
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Interface unit for sending debug messages to SysInternals ProcessMonitor « bl.OGware
Posted by jpluimers on 2015/02/10
Interesting, I never knew that [WayBack] Process Monitor has had an API to send messages to, but it has had this ability for almost 5 years: [Archive.is] See the I/O You Caused by Getting Your Diagnostic Tracing into Process Monitor | Wintellect.
I did know about [WayBack] OutputDebugString and the DBWIN protocols, but this was new.
The ZIP file for Process Monitor is offline (but you can find it by searching for ProcMonDebugOutput.zip), and contains .h files and a .NET example.
Thanks [WayBack] Oliver Giesen for the [WayBack] Delphi translation!
–jeroen
via: [WayBack] Interface unit for sending debug messages to SysInternals ProcessMonitor « bl.OGware.
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Posted in .NET, .NET 2.0, .NET 3.0, .NET 3.5, .NET 4.0, .NET 4.5, C#, C# 2.0, C# 3.0, C# 4.0, C# 5.0, Delphi, Delphi 5, Delphi 6, Delphi 7, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Development, Software Development | Leave a Comment »
On my research list: NCrunch for Visual Studio
Posted by jpluimers on 2015/02/04
Thanks Stefan Glienke for pointing me to NCrunch for Visual Studio:
NCrunch is an automated concurrent testing tool for Visual Studio.
It intelligently runs automated tests so that you don’t have to, and gives you a huge amount of useful information about your tested code, such as code coverage and performance metrics, inline in your IDE while you type.
–jeroen
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CSV libraries for .NET
Posted by jpluimers on 2015/01/27
A few libraries for writing and/or reading CSV files in .NET:
- CsvHelper: I’ve used this to export CSV, and it was very easy.
- LumenWorks.IO: supports databinding; some nice examples are on codeproject.
- FileHelpers: does way more than just CSV (like Access, Excel and SQL Server), so I have not used it yet.
- CsvParser: is still on my list of things to try, as Julian Bucknall is a very thorough developer.
- TextFieldParser: built into the VB.NET run-time. Used it but bumped into TextFieldParser problem with Double Quotes with Quotes.
Most of the above links come from these SO questions:
- Simple C# CSV Excel export class – Stack Overflow.
- Are there any CSV readers/writer libraries in C#? – Stack Overflow.
Together with the links from my previous CSV post If you think CSV is easy; think again that should get everyone going.
–jeroen
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.NET/C#: Chaning the ForeColor of a ReadOnly/Disabled TextBox (via: Stack Overflow)
Posted by jpluimers on 2014/12/24
Once every while you still do WinForms work, and bump into something you hadn’t bumped into before.
This time it was trying to set ForeColor = Color.Red on a ReadOnly TextBox for displaying error messages:
- Using a TextBox means the user can still copy the text to the clipboard.
- Using a Red foreground draws enough attention (it’s was an app with a really busy user interface).
When setting a TextBox from ReadOnly = false to true sets the BackColor from SystemColors.Window (usually white) to SystemColors.Control (usually light grey), and leaves the ForeColor to SystemColors.WindowText (usually black).
Setting ForeColor = Color.Red (funny there is a plural in SystemColors but not in Color) it doesn’t display it as such:
To my surprise, the TextBox had ReadOnly text (you could copy, but not modify it), which showed with a a grey (SystemColors.Control) BackColor and a black (SystemColors.WindowText) ForeColor: the defaults for a ReadOnly TextBox, not using my ForeColor = Color.Red;
I vaguely remembered there was some odd way of solving this, but since I hadn’t written a blog article about it back then (somewhere around .NET 1.x or 2.0 I didn’t have a blog yet), I was glad that Cheetah posted this answer on StackOverflow: Read the rest of this entry »
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.NET: case insensitive string replace without using RegEx (via: Stack Overflow)
Posted by jpluimers on 2014/12/16
Two ways to do a case insensitive string replace without using RegEx (which often is not a solution).
- Roll your own based on Fastest C# Case Insenstive String Replace – CodeProject (which works as of Visual Studio 2002 / .NET 1.0, as that introduced the StringBuilder class).
- Reuse the VB.NET built-in Replace Function (Visual Basic) which works at least as of Visual Studio 2003 (.NET 1.1) and probably in Visual Studio 2002 (.NET 1.0, which I don’t have any more)
Thanks User Tim Schmelter for pointing me at those.
–jeroen
via: Is there a case insensitive string replace in .Net without using Regex? – Stack Overflow.
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Posted in .NET, .NET 1.x, .NET 2.0, .NET 3.0, .NET 3.5, .NET 4.0, .NET 4.5, C#, C# 1.0, C# 2.0, C# 3.0, C# 4.0, C# 5.0, Development, Software Development, VB.NET, VB.NET 10.0, VB.NET 11.0, VB.NET 7.0, VB.NET 7.1, VB.NET 8.0, VB.NET 9.0 | 2 Comments »
Delphi, C#, VB.NET and SQL all have escapes to use reserved words as identifiers
Posted by jpluimers on 2014/11/04
Normally you would not want to use a reserved word as an identifier. But sometimes it can be very convenient, for instance for a code generator that wraps remoting calls or does ORM.
Both Delphi and C# have an escape for this:
- & prefix for Delphi.
- @ prefix for C#.
- [] embedding for VB.NET.
- “” embedding in many SQL syntaxes.
The prefixes are to tell the compiler knows you really know what you are doing, and are using a reserved word as an identifier.
The cool thing: in the Run Time Type Information (Delphi) or Reflection (C# and VB.NET) you will see the names without the prefix.
Some examples from StackOverflow: Read the rest of this entry »
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c# – What should I do when I am forced to write unreachable code? – Stack Overflow
Posted by jpluimers on 2014/09/09
Bosak posted an interesting piece of code on StackOverflow last year. His particular code was in C#, but it does not matter what kind of compiler you use:
Sometimes a compiler will complain about unreachable code, for instance when it thinks a function never returns a value.
But you know the program logic does.
Simple solution: When you have code that never should be reached: throw an appropriate exception.
public static int GetInt(int number)
{
int[] ints = new int[]{ 3, 7, 9, int.MaxValue };
foreach (int i in ints)
if (number <= i)
return i;
return int.MaxValue; //this should be unreachable code since the last int is int.MaxValue and number <= int.MaxValue is allways true so the above code will allways return
}
The last return could be replaced like this, as proposed by Matt Houser: Read the rest of this entry »
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Some notes/links on Windows Debugging CLR applications
Posted by jpluimers on 2014/07/02
I only need it every once in a while, so finding the right links and tips to help me usually takes too much time.
So here is a small list to get started:
- Debugging Managed Code Using the Windows Debugger (Windows Debuggers).
- SOS.dll (SOS Debugging Extension).
- .net – Windbg expects different version of mscordacwks.dll – Stack Overflow.
- .net – What to do with “The version of SOS does not match the version of CLR you are debugging” in WinDbg? – Stack Overflow.
- Download Psscor4 Managed-Code Debugging Extension for WinDbg from Official Microsoft Download Center.
- .net 4.0 – Unable to load SOS in WinDbg – Stack Overflow.
- just do IT: windbg sos.dll version issue.
- IanG on Tap: Getting Stack Traces of a Running .NET Process.
Keywords: CLR, SOS.DLL, WinDbg, mscordacwks.dll, PSSCOR4
Some tips: Read the rest of this entry »
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The Wiert Corner - irregular stream of stuff 