Convert String to Double – VB
Try looking at Double.TryParse() if you are using .NET 1.1/2.0/3.0/3.5/4.0/4.5
vb.net
Executable directory where application is running from?
This is the first post on google so I thought I’d post different ways that are available and how they compare. Unfortunately I can’t figure out how to create a table here, so it’s an image. The code for each is below the image using fully qualified names. My.Application.Info.DirectoryPath Environment.CurrentDirectory System.Windows.Forms.Application.StartupPath AppDomain.CurrentDomain.BaseDirectory System.Reflection.Assembly.GetExecutingAssembly.Location System.Reflection.Assembly.GetExecutingAssembly.CodeBase New … Read more
What’s the C# equivalent to the With statement in VB? [duplicate]
Not really, you have to assign a variable. So var bar = Stuff.Elements.Foo; bar.Name = “Bob Dylan”; bar.Age = 68; bar.Location = “On Tour”; bar.IsCool = True; Or in C# 3.0 and above: var bar = new FooType { Name = “Bob Dylan”, Age = 68, Location = “On Tour”, IsCool = True }; Stuff.Elements.Foo … Read more
Detecting remote desktop connection
allegedly, System.Windows.Forms.SystemInformation.TerminalServerSession will be true for a remote desktop session (or VNC session) but i’d test it to be sure 😉
Are there any OK image recognition libraries for .NET?
You could try this: http://code.google.com/p/aforge/ It includes a comparison analysis that will give you a score. There are many other great imaging features of all types included as well. // The class also can be used to get similarity level between two image of the same size, which can be useful to get information about … Read more
‘Shadows’ vs. ‘Overrides’ in VB.NET
Overrides is the more normal qualifier. If the child class redefines a base class function in this way, then regardless of how a child object is referenced (using either a base class or a child class reference) it is the child function that is called. On the other hand, if the child class function Shadows … Read more
What is the difference between “instantiated” and “initialized”?
Value vis-a-vis Reference Types Variables in C# are in 1 of 2 groups. Value types or Reference types. Types like int and DateTime are value types. In contrast, any class you create is a reference type. C# strings are also a reference type. Most things in the .NET framework are reference types. Parts of a … Read more
VB.NET equivalent of C# property shorthand?
There is no shorthand for Visual Studio 2008 or prior for VB.NET. In Visual Studio 2010 and beyond, you can use the following shorthand: Public Property FirstName as String This will be handled as your short version in C# is – I think they call it “Auto Property” See also: Auto-Implemented Properties (Visual Basic)
Listen to key press when the program is in the background
You can use P/Invocation to be able to use WinAPI’s GetAsyncKeyState() function, then check that in a timer. <DllImport(“user32.dll”)> _ Public Shared Function GetAsyncKeyState(ByVal vKey As System.Windows.Forms.Keys) As Short End Function Const KeyDownBit As Integer = &H8000 Private Sub Timer1_Tick(sender As Object, e As System.EventArgs) Handles Timer1.Tick If (GetAsyncKeyState(Keys.LWin) And KeyDownBit) = KeyDownBit AndAlso (GetAsyncKeyState(Keys.O) … Read more
Windows 7 Could not create SSL/TLS secure channel.”} System.Net.WebException
This error occurs on Windows 7 due to the TLS settings. According to Solving the TLS 1.0 Problem, 2nd Edition, TLS 1.2 is Disabled by default. Therefore, it needs to be enabled. Ensure that you’ve installed SP 1. Then, Create a restore point Open Control Panel Select View by: Small icons Click System On left … Read more