Dynamic button click event handler
You can use AddHandler to add a handler for any event. For example, this might be: AddHandler theButton.Click, AddressOf Me.theButton_Click
vb.net
How to incorporate multiple fields in QueryParser?
There are 3 ways to do this. The first way is to construct a query manually, this is what QueryParser is doing internally. This is the most powerful way to do it, and means that you don’t have to parse the user input if you want to prevent access to some of the more exotic … Read more
Define String ENUM in VB.Net
For non-integer values, Const in a Structure (or Class) can be used instead: Structure Test Const PersonalInfo = “Personal Info” Const Contanct = “Personal Contanct” End Structure or in a Module for direct access without the Test. part: Module Test Public Const PersonalInfo = “Personal Info” Public Const Contanct = “Personal Contanct” End Module In … Read more
Integer.TryParse – a better way?
No need to declare the integer. If Integer.TryParse(intToCheck, 0) Then or If Integer.TryParse(intToCheck, Nothing) Then If you have .Net 3.5 ability you can create an extension method for strings. Public Module MyExtensions <System.Runtime.CompilerServices.Extension()> _ Public Function IsInteger(ByVal value As String) As Boolean If String.IsNullOrEmpty(value) Then Return False Else Return Integer.TryParse(value, Nothing) End If End Function … Read more
Get last 5 characters in a string
str.Substring(str.Length – 5)
How to check if a string contains only numbers?
You could use a regular expression like this If Regex.IsMatch(number, “^[0-9 ]+$”) Then … End If
How can I show an “&” (ampersand) in button or label text?
If you are trying to display & in button text, use &&. A single & is used for keyboard shortcuts, and a double ampersand will escape that. The article Escape ampersand (&) character in C# mentions that you can leave the caption unaltered with single & and just set UseMnemonic property of the button to … Read more
“GenerateResource” task CLR2 runtime error
This fixed the issue on my machine: To resolve it, go to your csproj file and add the following line under the default property group: <PropertyGroup> … <DisableOutOfProcTaskHost>true</DisableOutOfProcTaskHost> </PropertyGroup> Found here.
Serilog – Output/Enrich All Messages with MethodName from which log entry was Called
in case you need a version in C#: public static class LoggerExtensions { public static ILogger Here(this ILogger logger, [CallerMemberName] string memberName = “”, [CallerFilePath] string sourceFilePath = “”, [CallerLineNumber] int sourceLineNumber = 0) { return logger .ForContext(“MemberName”, memberName) .ForContext(“FilePath”, sourceFilePath) .ForContext(“LineNumber”, sourceLineNumber); } } use like this: // at the beginning of the class … Read more
Creating and appending text to txt file in VB.NET
Try this: Dim strFile As String = “yourfile.txt” Dim fileExists As Boolean = File.Exists(strFile) Using sw As New StreamWriter(File.Open(strFile, FileMode.OpenOrCreate)) sw.WriteLine( _ IIf(fileExists, _ “Error Message in Occured at– ” & DateTime.Now, _ “Start Error Log for today”)) End Using