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C# equivalent of the IsNull() function in SQL Server
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For working with DB Nulls, I created a bunch for my VB applications. I call them Cxxx2 as they are similar to VB's built-in Cxxx functions.
You can see them in my CLR Extensions project
http://www.codeplex.com/ClrExtensions/SourceControl/FileView.aspx?itemId=363867&chang...
How can I get the line number which threw exception?
... ?(New StackTrace(ex, True)).GetFrame(0).GetFileLineNumber() for VB single line from the immediate window.
– Jonathan
Oct 18 '12 at 9:55
34
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Extract only right most n letters from a string
... @JeradRose - I work in a project where the code base evolved from a VB3 application (most of this is VB.NET) so there are some remnants.
– stevehipwell
Jul 14 '14 at 15:22
4...
Check if a string contains an element from a list (of strings)
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With LINQ, and using C# (I don't know VB much these days):
bool b = listOfStrings.Any(s=>myString.Contains(s));
or (shorter and more efficient, but arguably less clear):
bool b = listOfStrings.Any(myString.Contains);
If you were testing equality, it woul...
What is an IndexOutOfRangeException / ArgumentOutOfRangeException and how do I fix it?
...in your code what you can't see by yourself (but you can always bet).
The VB.NET side of the story
Everything that we have said in the C# answer is valid for VB.NET with the obvious syntax differences but there is an important point to consider when you deal with VB.NET arrays.
In VB.NET, arrays ...
App Inventor 2 中文网原创内容 · App Inventor 2 中文网
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App Inventor 2 中文网原创的技术文档，作品，技术文章，帖子，问答，技术指导，问题解决思路等。
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App Inventor 2 中文网原创内容 · App Inventor 2 中文网
...体与图像
游戏与动画
网络与AI
数据处理与工具
App Inventor 2 中文网原创的技术文档，作品，技术文章，帖子，问答，技术指导，问题解决思路等。
特色
【AI生产力】AppInventor2中文网 + AI...
Default visibility for C# classes and members (fields, methods, etc.)?
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In case any vb.net developers are looking at this, vb is different. The default scope for vb class members is Public. Enum members are also Public. Probably less confusing to just use explicit scope in your case since chances are high it...
How to use a WSDL file to create a WCF service (not make a call)
...data contracts) from the WSDL.
svcutil your.wsdl (or svcutil your.wsdl /l:vb if you want Visual Basic)
This will create a file called "your.cs" in C# (or "your.vb" in VB.NET) which contains all the necessary items.
Now, you need to create a class "MyService" which will implement the service inte...
What's so wrong about using GC.Collect()?
... references. It's one of the challenges that made me wary of upgrading my VB6 Outlook add-in to C#. (We did a lot of work to develop coding patterns and test cases on the VB side that guaranteed COM references were killed in a deterministic fashion when no longer needed).
– r...