We have a project that needs to gather survey data. On one particular page of the website, there are 21 questions each with a scale of 1-5 where the user selects one radio button for each question in the table. The survey is being coded in VB.NET. The data submits to an SQL database. All the radio buttons are similarly named, so only the number changes for the question [Code]
View 2 RepliesI have a sub which requires multiple counter variables. Is there a more efficient way of doing this. My example is simple. Image if I had 20 separate counters I was trying to manage. I would have to create 20 separate variables and then increment each in the desired place in the code.
Dim Counter1 as Double
Dim Counter2 as Double
Dim Counter3 as Double
[Code].....
[code].....
This program asks the user for a number and then an amount to multiply it with and that amount should be added to the initial number. I need to loop because I am trying to display what the amount would be each day for a certain amount of days but in this loop its only calculating for the total .how to get the variables to change value to the updated day. I understand that its just keeping the same value in the variables I just need a push on how to get it to update the values through each loop.
In my loop I am trying to remove items from a list that have a certain name. I can't do this with a for-each, so I tried a regular for-loop. It seems the for loop is not working as expected. It always goes over the limit. I had to put an if-then to break out of the loop (very ugly solution). I'm trying to find the correct way to accomplish this. [code]...
View 1 RepliesI recently made a change to the code within a loop in my code, and now when I run the code through Visual Studio 2010 Express, the loop runs about 10x slower than the previous loop.I did not make any significant changes (to my knowledge) to the code within the loop.I made the change so that the loop could handle various conditions I imposed in another section of the code.I know that it is this loop that is slowing everything down because I report the loop progress on my form.[code]I feel like my changed code should run better, but it doesn't.I know that my code is not written very efficiently (and feel free to comment on ways to improve it), but my main concern is the significant increase in computation time that resulted from my changes.The loop above is the main block of code within the Sub, which is run via a thread.In my tests, it is the only thread running at that time.Everything works, and the computation yields the correct result, but takes 10x longer than previously. Additionally, the number of iterations does not increase.So the new code isn't iterating excessively, it is simply taking much longer to compute within each iteration.
View 19 Repliesi wanted to know how to create a for...loop...and specify the counter for the loop to control the animation time. I want the for..loop to increase the speed of the moving object (button) and move it 5 times...
the code i started with is
Private Sub ForNextButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles xForNextButton.Click
For Counter = 0 To 1000
'do somtething----the something i want to do is repeat the moving process 4 times and at a fast speed---how do i write that
Next
[code]....
I'm trying to load a file where this file has, like, 10 lines. And I want to load each line (0 to 9) to each TextBox in my app (TextBox1 until TextBox10). So, there's a way to do this with a counter?
Like this mine code (that doesn't works):
If (System.IO.File.Exists("configs.ini")) Then
Dim configs As String() = System.IO.File.ReadAllText("configs.ini").Split(vbNewLine)
Const Max As Integer = 9
Dim TextBoxes(Max) As TextBox
For i = 0 To Max
TextBoxes(i + 1).Text = configs(i)
Next
End If
I have a for loop which goes like this -
for i = 0 as integer to 100
result &= "Name" & sqldr("name")
result &= "Lastname" & sqldr("lastname")
result &= "dob" & sqldr("dob")
next
The sqldr is the sql datareader (not important here)
I want my end result to be
Name1 = Sam
Lastname1 = Davis
dob1 = 01/01/1966
Name2 =
...
Name3 =
And so on depending on how manyrecords are in database. How do I make this happen in this for loop?
The program is to take an entered string then search for a subset of letters entered through and input box.In my subprocedure Sub btnSearch_Click I am using a loop to move through the entire length of an entered string to search for a set of letters entered through an input box. I can find the set of letters to search for but instead of increasing my counter "Found" for every instance of a match it returns the length of the string instead. I just don't know why the IF doesn't prevent the counter from increasing for every element in the string. I want the counter to increase only when the match is found. I just put 2 message boxes in there to make sure it found the right letter and then display the counter.
Here's the entire
' Name: Count Project
' Purpose: Displays the number of times a sequence of characters
' appears in a string.
[code]....
I want to write an Excel macro to set print formats in all worksheets in a workbook. I don't think you can do this by grouping; it appears you have to do it in each individual worksheet. I want to be able to run a macro in any workbook to loop through all worksheets in the workbook and then select the first worksheet.
How do you have the macro determine how many worksheets there are and set the loop counter equal to that number?
Im writing a program and its pulling data from a .MDB to put in a .DAT file.
Here is my while loop:
vb
database_connection()
sql = "SELECT * FROM tlalist"
[Code].....
In my database there are currently 6 rows. and only 1 row has the TLA_DAY column equal to 1, but for some reason when I look at the .DAT file it creates it outputs the result twice rather than only once.
Once JTLA_count increments it becomes "2", but the while loop still outputs as if its still equal to "1". Ive used breakpoints and the counter is incrementing fine.
I have recently started creating a basic game however i am having some trouble creating a time counter. Basically what i want is a counter which is a label displaying say "05:00" as in five minutes. Then when the level is started i want it to count down to zero and make my game over label visible.
View 2 RepliesI have a .NET customer framework that functions much like a Workflow. It uses reflection to get a listing of all of the processes it is capable of from a specific folder, and starts them via reflection with a known start point (all of them have a method called "Process"). Since these files are only called to do the processing and not part of the compile... is there a way for me to be able to drop in a new reference library (DLL) for one of the processes that is being updated without restarting the whole process?[code]...
View 1 RepliesI am attempting to move a highly referenced class from one namespace to another. Simply moving the file into the new project which has a different root namespace results in over 1100 errors throughout my solution.Some references to the class involve fully qualified namescape referencing and others involve the importing of the namespace.
I have tried using a refactoring tool (Refactor Pro) to rename the namespace, in the hope all references to the class would change, but this resulted in the aforementioned problem.Anyone have ideas of how to tackle this challenge without needing to drill into every file manually and changing the fully qualified namespace or importing the new one if it doesn't exist already?
I'm currently writing a countdown timer on vb 2005, with the following characteristics: When I press a button and the timer is running, it adds time to the counter, for example, if the time is 2:30 and I press a button, and the period to add is 1:10, the new time would be 4:40. The window is always on top of every other window, and is active even though it doesn't have focus. When the time's up and i press a key, in this case Esc, the application closes, otherwise, it just continues. [Code]
View 5 RepliesI've got a project that generates a sql query and returns the results. I want to place a time/counter on the form that shows how long it takes to return the query from the server. Basically to count up in seconds from 0 while that sub is executing. Would threading be the best way to do this or is there another way that I'm missing?
View 2 RepliesI have code, shown below, that works all except for 1 thing: The variables being passed byRef get passed, but once modified in the else section of the "if me.invokerequired" code of RecordData, the variables are never updated in the calling function. To reiterate, the calling function does not receive the updated data that is in the variables custid and amt.When debugging, I see the data change in the else section of "if me.invokerequired", but once it returns from the callback the data is missing.[code]
View 15 Replieshow to implement a counter in label which decrements every time page is loaded in asp.net(vb)? It would be better if that counter value is accessed from and updated into database..
I've tried this on buttonclick but the value is reset automatically to intial value everytime as the button is insert and page is reloaded
Protected Sub InsertButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim entries As Label = FindControl("label1")
entries.Text = entries.Text - 1
End Sub
I am having major problems with creating my tables and populating them.The problem for the creating seems to lie when I try to create my table named WeeklyUnitStaffRota. I get the run time error 2147467259(80004005) No unique index found for the referenced field of the primary table. This has only started happening as I have been tinkering with my tables to get them to populate properly.I seem to have a problem when I have two columns with the same info but relating to a different college ie two MSC being run at 2 different colleges.[code]...
View 1 Repliesi have difficulties in making school schedule time and school bell? how to modify time span in comparing more than 40's variables time.
View 3 RepliesI am constructing a program, i am new to Visual Basic, but i have past programming experience. I was wondering if anyone knew how to form a loop that could...lets say calculate the answer when two numbers are added together,and it would repeat this thousands of times, etc. And if there is a way, would it be possible to calculate the time taken to complete this loop.
View 5 RepliesI'm trying to use variables created within a loop, but I'm not sure how to do this. I've searched around on the net and there is a few recommendations to try and put what I require into a function then just call the function.
[Code]...
I'll try to be brief, In short im trying to add together a variable, (name = STRFinValue) within a For loop, I think the syntax should be:
STRTotal = STRFinValue +STRFinValue(f)
But I am very wrong.
Private Sub btnLBTotal_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
[code].....
Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
Dim chatters As List(Of Chatter) = New List(Of Chatter) chatters.Add(New Chatter(New Guid("CD863C27-2CEE-45fd-A2E0-A69E62B816B9"), "Me")) chatters.Add(New Chatter(Guid.NewGuid, "Juan")) chatters.Add(New Chatter(Guid.NewGuid, "Joe")) Application.Add("Chatters", chatters)
[code]....
I am unable to understand last 3 lines that are bold and underlined. Please what is hppening here. Chatter and Chat are two classes defined in App_Code folder. Is there any sight that contains all possible ways to declare and initilaze variables and data structure:
Dim chatters As List(Of Chatter) = New List(Of Chatter)
how would I do a loop with different my.settings variables?
ie lots of variables
My.Settings.numberofsites = 3
My.Settings.SiteDesc1 = Home
My.Settings.SiteDesc2 = Work
[Code]....
This would give me an error as there is no variable called SiteDesc.... but I actually want it to return SiteDesc1, then SiteDesc2 etc.
what if you created a pool of numbers: 1 - 21 and then chose a random selection from the pool? Something like the following:[code]This gets rid of those messy if statements and all of those loops.
View 1 RepliesI need to assign variables dynamically in a loop. In php you would use curly brackets but this doesn't work in vb.
Dim i As Integer
For i = 1 To 12
lblMonth{i}.text = 'whatever
Next
Anyone know how I can escape the the i variable so it becomes part of the string that precededs it?
I am writing a program and i need to declare matrices but there will be a different number to declare everytime the program is run so I was wondering if anyone knew how to declare them inside a for loop
eg.
For i = 1 to NumberOfMatrices
Dim matrix i (5,5) As Double
Next
I would like to loop over two string arrays but does not work.[code]...
View 4 RepliesI have this code sample from a book I'm reading which looks to be incorrect:
Imports System.Diagnostics
Sub Main
Dim pc As New PerformanceCounter("PerfApp", "Clicks", False) 'excepiton here
pc.Increment()
counterLabel.Content = pc.NextValue().ToString()
End Sub
There excepion message I get is: The requested Performance Counter is not a custom counter, it has to be initialized as ReadOnly. I looked for a property to see if I can set it but couldn't find one.