VS 2008 Temporarily Change The Value In A For Loop?
Feb 2, 2010
I'm trying to temporarily change the value of i in a for loop because I've got a problem when entering data into excel.Every second line is has the .marketName "To Be Placed" so they appear blank like this.
DATA 1
DATA 2
DATA 3
I want to change the value of i so there isn't a blank line between each entry.
vb.net
Private Sub BHorse_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BHorse.Click
Dim oMarketsReq As New BFExchange.GetAllMarketsReq
Dim oMarketsResp As BFExchange.GetAllMarketsResp
[code]....
It seems to get into an infinite loop as the way it is, even after I change the value of i back.
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May 1, 2009
I have a sub that i wrote only to temporarily fill the database in during run time to be able to test a few other functions that i wrote as well ... weird thing is by the way i wrote it it should only look 100 times... but by the unique ID in the database and the information it pulls back into my list box it loops 700 times before actually stopping the loop ...
Public Sub Fill_LeftOvers()
Dim x As Integer = 0
conn.Open()
[CODE]...
Now i used step debugging and sure enough it only loops 100 times during stepping but in the database it looped like crazy ... i have also tried while x < 100 instead of the do loop but it did the same thing ... i know this may be considered a double post i mistakenly posted originally in the PHP forums earlier today ...
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Jun 27, 2009
Can you temporarily disable a radio buttons CheckChanged Sub? I have a set of radio buttons in a groupbox and when the user selects one, I need to check if it's a valid selection. If not, I need to reset it to the previous button that was pressed. Below is an example of my
Private Sub rbGame_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rbGame.CheckedChanged
t_indextype = m_indextype
m_indextype = "1"
[CODE]..................
In the above example, ResetButtons() changes the checked value of the radiio button selected to false and changes the checked value of the previous radio button to true. The problem is that when radio button rbGame gets changed, it causes the CheckChanged sub above to run again from the top. Is there a way to temporarily disable it from running while I make my changes and then re-enable it?
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Dec 14, 2010
Basically I have 10 .png images.They contain a walk cycle I need to make some kind of loop inside a timer to make them change.
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Mar 21, 2010
I have this code:
Dim x As Integer = 0
Dim x1 As Integer = 210
Dim x2 As Integer = 240
Dim x3 As Integer = 310
Dim m As Integer = 0
Dim x4 As Integer = 480
[Code]...
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Apr 15, 2012
I have a List of structure's in my VB.NET program, and I'm looping over them, and change the values of the objects in the list, as follows
Dim retvals As List(Of SomeStruct) = parser.RetrieveData(new_path)
For i As Integer = 0 To retvals.Count - 1 Step 1
dim temp as SomeStruct = retvals(i)
[Code]...
When I look into my List of structs after this loop, none of the values were overwritten. Why? I thought that I had references in my list, so if I change reference A to a struct, then reference B to the same struct should see the changes?
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Aug 11, 2009
I assigned an integer as 1, and looped my program using:[code]I can recieve the packets without looping, but once i loop, i receive nothing.
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May 19, 2009
Is it possible to change many labels inside a for loop? Let's say I have labels 1 to 4. Can I do something like:
for i = 1 to 4
label%i.text = some text
next
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Jan 26, 2009
I'm multiplying X*Y*Z in a loop of 200 interations Y is declared as a constant. A timer can cause the loop to pause for 10 seconds.
During this 10 sexond pause I would like to change the value of Y. It needs to be changed only for this run, not a permanent change which can be done in the declaration.
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Apr 18, 2012
I'm trying to change a text that a label displays during each iteration of a Do While loop in Visual Basic. One label (which displays an integer) works fine, however the other stays blank until the loop finishes and displays the final result.
Private Sub btnCalc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles btnOblicz.Click
Dim W As Single
Dim L As Integer
Dim J As Integer
Dim Y As Double
[Code] .....
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Oct 3, 2009
[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.
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Sep 13, 2010
I used a sub below in form_load to change all label forecolor but do not work.[code]...
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Oct 22, 2010
I want to reset programatically the values of all the labes on my form for example label1.text=1, label2.text=2 etc etc (there are 90 in total)
I came up with:
Dim i As Integer = 0
For Each objcontrol As Control In Me.Controls
If objcontrol.Name = "Label" & i Then
[Code]....
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Jun 22, 2010
I'm trying to hide 5 to 12 buttons on a form until a screenshot is saved to the clipboard. I have it set right now so the user clicks a button(btnSavePDF) and then whichever buttons are visible are made not visible. But I haven't a clue how to restore just those buttons. I'm trying to avoid restoring them all unless they were all originally visible.
[Code]...
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Jun 24, 2009
I wrote the code and it runs through it perfectly, the problem is that it will only save it to the database temporarily. So once I close down visual studio for the night and come back to it what's been entered is gone. It's not a published program still in debug mode but I've not run into this before. I have another program I'm working on that I'm running purely in debug mode and it works flawlessly. The code between the two is the same cause I just copied it and changed the parameters. Any ideas? I'm using an sql mdf btw.I should clarify, don't know if it matters or not, that the DB that is working is in SQL server whereas the DB I'm having trouble with is a mdf that I added into the program.
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Jun 29, 2010
I have the following code:
Dim i As Integer
For i = 1 To 20
Dim captionTextBox As TextBox = DirectCast(Me.FindControl("news_Image" +
[Code].....
Where the comment is in the code above, I need to insert the value of the textbox (text) into Linq columns. For example: articleToUpdate.news_Image1Caption, news_Image2Caption, but I need to change the number after news_ to the value of i in the for loop.
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Nov 4, 2010
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]...
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Apr 30, 2009
I am using a for each loop and each time the loop executes, the text of the label has to be changed.. But for some reason, it only changes the text of the label during the last execution of the loop...
Here is the
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim dll
[Code].....
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Oct 10, 2011
Following code is used in a .NET 2.0 windows service to continuously monitor a the table in the Database.[code]Seelctjob method will connect to SQL server 2005 database and executes the following Select query to see if there is a record with a particular status code.[code]This Select Query is executed continuously. If there is a record Start method will process further.I want to avoid executing the query continuoulsy. I tried using Sleep method and timer control. Thread.Sleep method stops the execution for sometime.[code]What is the best way of connecting to DB and monitoring a table at regular intervals of time without having much performance impact? When to use thread.sleep and a timer control and what is the difference between them?
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Nov 30, 2009
Ihave created a system that allows an IT manager to log faults and assign them to available technicians, basically, you select a member of staff, a technician and describe the fault and then log it. But what I want to be able to do is take the technician out of the table until the fault is cleared and the technician is free. I have started this process but my head is spinning and I am not 100% where to turn next. I currently have a Busy field in the technician table and I have the code that allows the technician's busy status to change to 0 instead of 1 but I cannot for some reason get it to turn back to 1 when I clear the fault.
I think I may need some sort of If then statement like
If datagridview2.currentrow.cells(4) = 0
Then datagridview2.currentrow.remove
I've been using a FileSystemWatcher to detect changes and this is the code that changes the technicians busy status to 0:
Dim BusyM1 As String
BusyM1 = DataGridView2.CurrentRow.Cells(4).Value
sql = "update Technicians set busy=1 where busy='" & BusyM1 & "'"
Dim commandUpdate As New OdbcCommand(sql)
[Code] .....
And here is a code I tried to use to return the status back to 1 for the technician busy status
Dim NotBusy As String
NotBusy = DataGridView2.CurrentRow.Cells(4).Value
sql = "update Technicians set busy=0 where busy='" & NotBusy & "'"
Dim commandUpdate As New OdbcCommand(sql)
[Code] .....
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Mar 29, 2009
I've created an Excel COM add-in that has several forms. The application has the following forms:
FormA (Modeless): Excel.Application is parent
FormB (Modal): FormA is parent
FormC (Modal): FormB is parent
[code].....
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Mar 5, 2009
I have a graphics application I'm working on that displays full screen so there's no control in the upper right to close the application. I have it set up so that a right click closes the application but I noticed that a right click menu comes up on the desk top after my application closes which is no big deal. You could ignore it but I was wondering if there's a way to turn off the right click menu so that it wouldn't come up though I would want it to be enabled after that first click that closes my program.
So the right click would close the program disable the right click menu and then enable it again so that the next right click would show the menu. Haven't come up with anything on searches. I could use something else to close my application but if there's a convenient way of doing this I would like to find out what it is. I have almost every key on the keyboard doing something though I haven't used F1 through F12 at the top of the keyboard. Maybe I'll use F1 if I don't find out how to do this. How to use F1 to F12 to close or do something?
I've been using keypress events to do a lot in my application but for
Select Case e.KeyChar
Case "F1"c
isn't valid.
I tried other things. {F1} etc. I have option strict on. Thus the little c is necessary for characters like "a"c or "b"c.
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Nov 13, 2007
I'd like to temporarily disable events for a given control. For example, the SelectionChanged event on a combobox might be used to update a display every time the user changes the combobox... but while I'm filling the combobox with values, I don't want the SelectionChanged event to be firing over and over... I need to disable events while the combobox is being populated. How do I do this?
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Mar 8, 2009
My VB program creates a file on a NAS drive via the SaveFileDialog component in a different user context than the person launching it.It works because the person who runs my ClickOnce deployed program uses RunAs from the program's exe (thereby bypassing the ClickOnce pre processor). The problem is that the program extensively supports drag and drop which doesn't work between the User and RunAs contexts.
The program is a VB 2008 Express Windows Forms Application running on XP workstations with peer-to-peer (workgroup) access control. i need to execute only the SaveFileDialog component with impersonation via the user account we've been using with RunAs. Something along the lines of what RunWithElevatedPrivileges accomplishes in SharePoint Services. This is not happening in a hostile security environment - so, the solution needn't be impregnable.
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May 24, 2012
how to temporarily save the user input to the pc he is using then save to another pc in the network later. Our LAN sometimes disconnect or there maybe power interruptions and I don't want that the input of the user disappear due to disconnection or power interruption. What is the easiest way to accomplish this?
Here's what I'm working so far. The data saves to another pc.
Imports System.Data.SqlClient
Public Class formGrammarI_Page01to04
Dim db As New EPTR_DataDataContext
[Code]....
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Jun 30, 2009
I need to use a virtual drive (ram disk) to save data temporarily. Which ram disk program is good to use.
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Dec 8, 2009
I have already a Pretest loop that counts the number that the user inputs and displays a message. I need to change the Pretest loop code so it will count down instead of up from the number of times entered by the user.I have already coded this:
vb.net Public Class frmMain Private Sub btnExit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnExit.Click Me.Close()End Sub Private Sub txtNumTimes_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtNumTimes.KeyPress
[Code]...
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Oct 17, 2011
So basically, i have 2 int variables, x and y i am using to create a grid of pictureboxes.This is all fluid and built on runtime.I am trying to specifically change the picturebox on click if mine = 2.I cannot specifically change one, when i click any, it changes all of them.
Heres my code:
Public Class Form1
Inherits System.Windows.Forms.Form
Dim images(8) As Image 'declares image array
[code].....
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May 24, 2011
I have made a For next loop with an array. I want all my picture boxes to follow each other within the loop. I have currently been using old code, but not in a loop or array format. The old code works. The array code only makes the 2nd picture box follow the FIRST one. It doesn't loop the rest. I have checked the code and cannot determine any mistakes, else I'm missing out on something I haven't been taught.[code]...
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Jan 11, 2010
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]
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