As has been pointed out many times, the suggestion to write code like this is problematic: Public Function GetRandom(ByVal Min As Integer, ByVal Max As Integer) As Integer Dim Generator As System.Random = New System.Random() Return Generator.Next(Min, Max) End Function The reason is that the constructor for the Random class provides a default seed based … Read more
Constant Value Description —————————————————————- vbCr Chr(13) Carriage return vbCrLf Chr(13) & Chr(10) Carriage return–linefeed combination vbLf Chr(10) Line feed vbCr : – return to line beginning Represents a carriage-return character for print and display functions. vbCrLf : – similar to pressing Enter Represents a carriage-return character combined with a linefeed character for print and display … Read more
Or/And will always evaluate both1 the expressions and then return a result. They are not short-circuiting. OrElse/AndAlso are short-circuiting. The right expression is only evaluated if the outcome cannot be determined from the evaluation of the left expression alone. (That means: OrElse will only evaluate the right expression if the left expression is false, and … Read more
VB has the following If statement which the question refers to, I think: ‘ Usage 1 Dim result = If(a > 5, “World”, “Hello”) ‘ Usage 2 Dim foo = If(result, “Alternative”) The first is basically C#’s ternary conditional operator and the second is its coalesce operator (return result unless it’s Nothing, in which case … Read more
To do this, you need to register the CodePagesEncodingProvider instance from the System.Text.Encoding.CodePages package. To do that, install the System.Text.Encoding.CodePages package: dotnet add package System.Text.Encoding.CodePages Then (after implicitly or explicitly running dotnet restore) you can call: Encoding.RegisterProvider(CodePagesEncodingProvider.Instance); var enc1252 = Encoding.GetEncoding(1252); Alternatively, if you only need that one code page, you can get it directly, … Read more
The Exception When clause is largely unknown. Consider this: Public Sub Login(host as string, user as String, password as string, _ Optional bRetry as Boolean = False) Try ssh.Connect(host, user, password) Catch ex as TimeoutException When Not bRetry ”//Try again, but only once. Login(host, user, password, True) Catch ex as TimeoutException ”//Log exception End Try … Read more
You can access the controls by name via the Form.Controls property, for instance: Dim text1 As TextBox = CType(Me.Controls(“text_1”), TextBox)
Modules are VB counterparts to C# static classes. When your class is designed solely for helper functions and extension methods and you don’t want to allow inheritance and instantiation, you use a Module. By the way, using Module is not really subjective and it’s not deprecated. Indeed you must use a Module when it’s appropriate. … Read more
TCP communication is stream-based, which means it doesn’t handle any packets. Due to this, messages that you receive might be either partial or lumped together. You could for example send: Hello! How are you? But you might receive: Hello!How are you? or: Hello!How ar e you? (or something similar) To fix this you must apply … Read more
This may be cleaner (you dont need all the into statements): var query = from order in dc.Orders from vendor in dc.Vendors .Where(v => v.Id == order.VendorId) .DefaultIfEmpty() from status in dc.Status .Where(s => s.Id == order.StatusId) .DefaultIfEmpty() select new { Order = order, Vendor = vendor, Status = status } //Vendor and Status properties … Read more