How can I re-declare arrays in VB.NET at runtime?Example:When I run my program, I will have 100 arrays then I have my button that says "add", if I click it, a text box will appear and I can type there what ever I want to add in my arrays, also I can delete an existing array, but the problem is for example I want to delete an item, and that item is in array number 6, if I delete it, a new item will replace the array, how will I do it?
View 1 RepliesWhy can't I declare values for an array inside a module?
View 2 RepliesI declared an array of strings and initialized every element to "5". But when I debug with a breakpoint after the For-Each, all my array members have Nothing in them. I'm on Visual Studio 2010.
Dim words(999) As String
For Each word As String In words
word = "5"
Next
How do I declare a fixed length variable array?[code]...
View 1 Repliesi've to declare two constant arrays one bidemensional of strings the other bidimensional of Doubles?
View 10 RepliesI am trying to write a quiz in Visual Basic 2010 .NET and I have come across a problem while putting in the textbox the user inputs the answer to. The Textbox obscures the upper half of the first line of text.
Public AnswerTextBox As New TextBox
Public stdFont As New Font("Calibri", 12)
Public Sub New()
AnswerTextBox.Location = New Point(100, 100)
AnswerTextBox.Size = New Size(200, 30)
[Code] .....
I am very new to vb .net. I want to create a set of arrays of textboxes during runtime of a program. For example when I click on a CommandButton it will ask me how many textboxes do I require as input. Then it will create that no. of textboxes instantly. This thing I have done in Visual Basic 6.0 but I can't do it here in .Net
View 3 RepliesIn languages like C++ and Java, it is possible to declare an array of an arbitrary size and then give it a specific size later in the code.
[Code]....
I have a form where I have to use control arrays to create a multiple input form i.e. rather than processing one transaction at a time up to 16 transactions must be processed. The following really havent given me much problems at this moment labels and textboxes. I use a for construct to create all the controls including a combobox. This is where my question comes in this form combobox has to be linked to a table in a database. But furthermore and this is where it gets complicated for me anyway each seperate combobox must move independly if i select row 5 in the table in combobox 4 combobox 5 which is havent touched should still be on row 1. How do I accomplish this. I'm using a webservice. I have tried passing a loaded dataset . The code that loaded the dataset is as follows
Dim DSInfo As New Project1.localhost4.AccInfo
DSInfo.Credentials = System.Net.CredentialCache.DefaultCredentials
InformationData.Merge(DSInfo.GetBusinessJournals)
[Code].....
this code doesnt however provide a link to the table equallly creating a dataset in the combobox method ,loading it and then setting it as datasource also provides no link. I know i'm missing something.
In VB6 I load a recordset containg all of the records (6 fields per record)in a table into an XArray and then manipulate the records in the array and then write them back to the original table. The array issorted by the first field (1 to maybe 8000 or more) I need to find records in the array by an ID field and then move them (because of some external criteria that happens many times) from say number 400 to number 375. Then all of the other records between 375 and 399 were renumbered up 1 to fill the gaps left by the move.
The XArray worked well as it could find and also move to a next record easily to facilitate the revisions to each record quickly. Everything is done in VB6 in code and nothing visual needs to be shown to the user until say 2000 of these external changes are complete. What is the best, most efficient way to do this in the .Net framework in VB2010. Datasets, Dataviews. tableadapters, arrays. enums ?
My assignment is to have a user enter in big integers using what i think is two parallel arrays. I got this far but now im stuck. I think i need to actually convert the text box input into an array but i do not know how to do that. I am all over the place in this project.
'Created/ Revised by: Jessica Falcetta
'Cap 204 Final Project: Big Integer Project
'Project Purpose: To calculate large integers through parallel arrays
[CODE]...
I have a VB.net console app and I am opening a function in a dll written in fortran. I am passing 3 arrays through the function by reference. When they come back out the otherside they ahve all tunred to arrays of only one element And that element is 0.I read on the internet somewhere that when doing this kind of thing it is a good idea to only pass the first element of the array into the function.I tried changing my function declaration to accepting single elements rather than single dimensional arrays, and now the arrays are the same length before and after the function call, but they don't seem to be changing at all, so i'm not sure that this is working
View 1 Repliesthe statement Dim state(49) As String and maintain a list of certain states. The list of states should always be in alphabetical order and occupy consecutive elements of the array. The buttons in the program should give the user the following options: (a) Take the state specified by the user in a text box and insert it into its proper position in the array. If the state is already in the array, so report. (b) Take the state specified by the user in a text box and delete it from the array. If the state is not in the array, so report. (c) Display the states in the array. "
Private Sub states_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
state(0) = "Alabama"
[code]....
I was wondering if anyone knows a built in method ( LINQ say or a LAMBDA expression or other way ) that you can compare2 arrays - collections that would be valid for an equivalent 3rd array - collection which is a combination of the 1st two.
As an example consider;
* * *
A L E
[code].....
How can I sort three arrays so they are sorted together (the other two arrays are in sync with the first)?unsorted unsorted unsortedarray1]CODE]....
View 9 RepliesI have created multiple dropdown list at runtime and populated with data. I also have added an eventhandler to determine the selected value of the drop down list.
The code is as follows :
Dim tbl As New Table()
tbl.EnableViewState = "true"
[code].....
I have a Visual Basic 2005 program which runs fine if I execute the built Executable. However if I start the application in VS2005 debugger it gives a weird error
[Code]...
Soemone recently downloaded my software and they got this error: microsoft common languages runtime version 4.0.30319.0 how do i fix this
View 1 RepliesI have a label called "test" in my Index.asp page in my MVC view folder. I want to be able to change the value of it in my controller class.
View 1 RepliesI have this H file in C, which includes[CODE]...
I get an error :FatalExecutionEngineError was detectedMessage: The runtime has encountered a fatal error. The address of the error was at 0x79e71bd7, on thread 0x11f0. The error code is 0xc0000005. This error may be a bug in the CLR or in the unsafe or non-verifiable portions of user code. Common sources of this bug include user marshaling errors for COM-interop or PInvoke, which may corrupt the stack.How do I translate it correctly ?
In C# we do
byte[] imageData = new byte[];
SqlCom.Parameters.Add(new SqlParameter("@ImageData", (object)imageData));
which makes the imageData variable as an object.But How do i do this in Visual Basic??
Dim imageData As byte() = new Byte()
SqlCom.Parameters.Add(new SqlParameter("@ImageData", ?? ) <-----What Should i do here?
My code is like this
conn.Open()
Dim cmd As SqlCommand = New SqlCommand("SELECT PhotoID From Photo " & str8 & " And Photo = @Photo", conn)
cmd.Parameters.AddWithValue("@Photo", CType(Photo, Object))[code]....
It comes out error like this:The data types image and varbinary are incompatible in the equal to operator. What should I do?
To declare an object in JS i can simply do the following:
var house = new Object();
house.window="square"
house.color="green"
In asp.net (VB) if i try doing the same
Dim house = new Object()
house.window="square"
i get an error: System.MissingMemberException: Public member 'window' on type 'Object' not found.
Do i have to create a house class before i can reference house.window? Is there no way to do it without creating a class?
In my VB 6.0 code, I declare have the following line[code]...
However, in VB.NET, I get the error "expecting declaration". Isn't this a declaration statement? Is there a good reference for finding the differences between VB.NET and VB 6.0?
In c++ we declare integer's hex value like this
int myint=0xabcd;
so how to i declare integer's hex value in vb.net
I want to know if it is possible to declare a variable thrice.
[code]...
i am making a program and the program runs too slow, so i would like to declare my functions at once.. not like this :
[Code]...
How to declare a datasource?
View 1 Replieshow to declare a textbox because my computer for a particular textbox say that "is not declared"
View 9 Repliesi know it's probly really easy. but how do i declare App.EXEName
View 10 RepliesI am trying to send mail that is formated as HTML but I get an error showing thatlFormatHtml is not declared. How do I declare it?
View 1 Replies