Overall what I am trying to get the function name as a string but without magic strings.
Assuming below.Public Class MyTestClass Public Sub Function1(ByVal junk as String) 'Doesnt matter what this does End Sub End Class So in another function in the same class, I want to do what you think something like Me.Function1.ToString() might do (but obviously doesnt work that way). Basically, I want the function names using intellisense, but as strings, not the actual call to a function.
I have nine pictures that I need to animate -I need to use the ToString method and a counter to concatenate a file name into a string variable from the Image.FromFile method. Once the counter reaches its maximum value, and the last picture is displayed, the counter should be reset to zero or one depending on how the first image file has been name. Also a static counter variable should be incremented in the time routine. what I have so far -- I know what I have to do; however, I just do not know how to code this properly.. Right now I have this going thru a button procedure but it needs to go through a timer.
Let's say I have a page Test.aspx along with test.aspx.vb.Test.aspx.vb contains a class name "TestClass". In that class I have method1(), method2() and method3()I need to be able to call one of those methods, but I can't hard code it, the method to be executed comes from a string.
I can't do Select Case StringContainingTheNameOfTheDesiredMethod Case "Method1"
So strings are reference types right? My understanding is a reference to the string in the heap is passed even when you pass the string ByVal to a method.
I am trying to the copy the value from string to char array using String.CopyTo() method.
Here's my code
Dim strString As String = "Hello World!" Dim strCopy(12) As Char strString.CopyTo(0, strCopy, 0, 12)
[code]....
Edit : I get the this error at runtime.ArgumentOutOfRangeException Index and count must refer to a location within the string. Parameter name: sourceIndex
Consider a MyForm class that contains a shadowed implementation of Show(). It also contains a CreateForm() method, which accepts an instance of the form and calls the shadowed sub:
I'm having some issues using the String.Split method, Example here:
Dim tstString As String = "something here -:- urlhere" Dim newtstString = tstString.Split(" -:- ") MessageBox.Show(newtstString(0)) MessageBox.Show(newtstString(1))
The above, in PHP (My native language!) would return something here AND urlhere in the message boxes.
In VB.NET I get:
AND : (colon)
Does the String.Split only work with standard characters?
I am attempting to use the string.compare method in VB. One of the strings come off a list box that was converted over to a string(strLotto), and the other string (stringInput) is coming off of user inputted data. I am trying to compare the two and return the values that are the same into lstSameNums.
Public Sub UserData() lstUserNums.Items.Clear() Dim intNum As Integer
When I run my program, I want my AverageInventoryTextBox to be formatted like $0.00 and my TurnOverTextBox to be 0.00 (2 decimal places)But when I do the strings for the textboxes and run the program, no matter what numbers I put in it just gives me $0.00 and 0.00, it SHOULD be like $13.84 or 7.44 something like that, but it will only give me zero for an answer.
Public Class Form1 Private BeginInventoryInteger, EndInventoryInteger, CostInteger As Decimal Private Sub CalculateButton_Click(ByVal sender As System.Object, ByVal e As
I am working on my project using with regex method, but I have difficulty to get the proper strings in each line which it doesn't work in the right way. However I want to use a different way, like find the regex value then highlight the full text from one line, copy and paste the full text to input them in the label text. For e.g:
Is it possible to read a string and call the method of the same name?For example: I have many buttons and if the user presses the button named A1, I want the Sub AI() to be called. I don't want to do an explicit If-Then for each button. Rather a common ONCLICK method that is called by all buttons and another method (the same name as the name of the button) is called.
Example:
Sub Click(byVal buttonName as string) call ButtonName ' <<<< Error. ButtonName is string and not a Method. End Sub
Is there any easy method for splitting text in VB.NET? (using a start and end string to grab whats in between?)I do this all the time in JScript with the following:
Just like the title says; I want to use something like Mid(stringName, startIndex,[integerLength]), but instead of the third argument taking a string length, I want it to take the end character index. So in an example like this: alphabet = "ABCDEFG" partial = *method I want to use*(alphabet, 2, 4) 'partial would equal "BC"
I have traditionally coded empty strings like this "", but for a couple of years now, I have been using String.Empty.I also normally never use optional parameters, but I'm refactoring a solution that's tied into my ERP, and I don't want to break anything. One of the changes was to add a parameter to proc, which pushes a new parameter into the method from which it is called. I coded it like this:
Optional BackReferenceID As String = String.Empty
But I got a syntax error "Constant expression is required." I guess String.Empty is non-deterministic??? Anyway, it seems like a bug. The workaround is of course to use double quotes.
I have a string like "pen pencil table desktop watch" I have to format it like "penPencilTableDesktopWatch" ..... like convert to camel casing. Is there any method of string or string builder in which I can do it in one line ? ... (without splitting and formatting each string and concatenating.)
How do I refactor the method GetInvoiceNumbers to replace the SQL String concatenation with the StringBuilder class? Here is my code:
Private Function GetInvoiceNumbers() As System.Collections.Generic.List(Of Invoice) Implements InvoiceService.GetInvoiceNumbers Dim invoiceList As New List(Of Invoice)
I know there is a function Contains that returns true if string has a certain substing in it. But is there a function that returns the count of instances of that substring inside another string.
I have 3 similar functions, that only change based on numeric type:
<Extension()> _ Public Function ToNullableShort(ByVal str As String) As Short? Dim intReturn As Short
[Code].....
I was trying to make a generic function out of this, but couldn't do it. How can I make a generic function that will take a specific T and make it a Nullable(of T)?
For example, assume that in my assembly, in Namespace A, Class B, there is an instance method with the following signature: void Test(string someString, int someOtherParm, string someOtherString ); This method is called multiple times, from multiple places in the assembly. I would like to be able build a list of all invocations of this method and the value of the someString/someOtherString (assuming they are hardcoded). In other words, I like to extract a list of calls like the example one below, if they happen in the assembly somewhere: Test("some text", 8, "some other text");
In VB.NET, it is entirely possible to pass an integer as a string parameter to a method without calling .ToString() - it's even possible to call .ToString without the ()'s. The code will run without a problem, VB will interpret the integer as a string without having been told to. In C#, these would cause compilation errors - you are required to call .ToString() and to call it correctly in that situation before it will compile. Is there a way to make the VB compilation process check for the same things as the C# compilation process? Would it be best practice in a mixed team to force this check?
I have a text file (CSV) approx 100k lines (8Mb). I want to search the entire file for a particular string eg, "apple" and for all lines containing the string to be printed in a text box. have successfully done this using streamReader to parse the CSV and check each element against the search word eg. apple. This has proven to be very very slow and I have read that the "ReadAllLines" method is much faster.
