For Loop 3 Forms
Mar 23, 2009
I'm sure this type of function is simple, but for the life of me, I can't get it.I have 3 forms. Main form holds a list box, which is my shopping cart.FormP holds the print books in a list box.FormA holds the audio books in a list box.I can send the books from forms a & b to the list box cart on main by way of formMain.ListBox.Items.Add(ListBox.SelectedItem.ToString())but I can't access the items once there and associate a cost to throw to subtotal.[code]
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Apr 17, 2009
how can i loop through all the forms in my application??
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Jul 30, 2011
I'm a VB.Net newbie, and would like to write a small app that runs a While loop to check a DNS domain name, and exits once the domain has been registered.
I found code at How to Get Host Name and IP Address in VB.Net - .Net Articles & Samples to resolve the hostname and handle the "No such host is known" error if it still hasn't been registered, but I have a couple of issues:
1. How to make sure the GUI is correctly displayed even though there's an endless While loop? Should I use some kind of asynchronous call so that the window doesn't freeze?
2. I'd like the app to mimize to the icon bar, and have its window title display some status information ("Still waiting/Registered!") so that I can simply move the mouse over it and know whether the domain has finally been registered or not.
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Nov 15, 2008
Is it a way to set the text in a textbox from a loop? Bad Explained, heres an example
Dim id(10) as string
For h As Integer = 0 To 10
[code].....
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May 6, 2010
how would i ggo about coding this
For i = 0 To maxrows - 1
For h = 1 To maxrows
Me.Controls.Item("TextBox" & h).Text = ds.Tables("TestCriteria").Rows(i).Item(0) Me.Controls.Item("NumericUpDown" & h).Value = ds.Tables("TestCriteria").Rows(i).Item(1)
[code]....
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Sep 5, 2008
I want to create a table with 2 fields (FormName, ControlName) that consists of all form names and all control names (within that form).[code]...
How do I loop through all forms and controls in my project?
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May 19, 2012
I am looking for Visual Basic 2010 code that would loop through all the forms in a project, i.e., the equivalent of the following VB 6 code:dim frmFom as Form for each frmForm in Forms
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May 27, 2011
I am looking for Visual Basic 2010 code that would loop through all the forms in a project, i.e., the equivalent of the following VB 6 code
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May 20, 2009
We're using the Autocomplete functionality for some textboxes. We populate the AutoCompleteCustomSource with data from a database query using a datareader loop. The data in the query is sorted by 'recently used', the most recently used entries are at the top.
Let's say the sequence op the AutoCompleteCustomSource is
'AM1900'
'AF2000'
'AD1950'
After typing an 'A' in the textbox, I would expect the Suggested (or Appended) value to be 'AM1900'. The suggested value however is always the first item from an alphabetically sorted
AutoCompleteCustomSource list (i.e. 'AD1950')
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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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Sep 28, 2011
I have a procedure that loops through the directories and subdirectories on a file server and sets the permissions. Procedure is called on a button click on a form.
I need to display on the form which directory is being processed. Similar to if we use the Debug.writeline which writes to the output in Visual Studio. I tried using a ListBox but it only displays the last one and only displays the last one once processing is done. I want to be able to display each directory name as it is being processed.[code]...
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Jul 31, 2009
Whenever my application goes into a very long loop, the form stops responding. How can I stop this?
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Dec 5, 2010
I am fairly new to VB but really enjoying programming. I'm looking to create a counter that counts to 25 and loops back around again with a button control and another button control to stop it. So I press a button to start and another to stop and I want it to display the number it stopped on. Is this possible? and how do I do it if it is? I can figure out how to display the label and create a simple counter(that doesn't loop), but I'm unsure on the rest.
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Dec 1, 2010
I am writing a program in VB 2008 and i need to be able to select different pages. i have a ComboBox with 15 values in it, and based on what value the user selects, that is the Form i want it to go to. for example, if i run the program and select the Value "electrical", then it will take me to the form that corresponds with that selection. [code]...
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Mar 29, 2009
I have made an app that the user has to type a number, and i want the process for the app to do this how evermany times the user wishes it to do.
for example, the app is ment to create a line in a text document, so they write in textbox1 what they want written on the line, and then in textbox2, tey say how many lines they want to create.
So,
TextBox1.Text = "BLAA"
TextBox2.Text = "782"
It will create 782 lines of BLAA. not just one...
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Jul 27, 2010
Below is some code I use to loop through rows in a datagridview and set the row colour subject to a "STATUS" field and also changing font colour and boldness dependant on whether a flag has been set to true.
Is this code optimal / can it be cleaned up somewhat?
Public Sub ColourMyGrid()
Dim varStatus, varBagTemp As Integer
Dim myFont As New Font(grdResults.Font, FontStyle.Bold)
For Each row As DataGridViewRow In Me.grdResults.Rows
varStatus = row.Cells.Item("Status").Value
[Code].....
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Mar 14, 2011
Makes the following statement about the code below:
**"The computer evaluates the loop condition in the Do...Loop statment to determine whether the loop instructions should be processed. In this case, the inputsales <> String.Empty condition compares the contenst of the input sales variable to the String.Empty value. As you know the String.Empty value represents a zero length, or empty, string if the inputsales variable is empty, the loop condition evaluates to True and the computer process the loop instructions. *If on the other hand the inputsales variable is not empty, the loop condition evaluates to false and the computer skips over the loop instructions.
Based on the code I think it is the opposite: ...that while the inputsales value is not empty it should evaluate to true and process the loop and if it is empty it should evaluate to false and skip the loop?
See below.
Option Explicit On
Option Strict On
Imports System.Globalization
[CODE]...
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Sep 2, 2010
I have a form with many buttons on it and I would like to loop through all the controls in a group control and find out which button is clicked.
I plan to use the click event of the button and I know it's easy to create a click event procedure for all of the buttons but would like to avoid that.
The group control is called GroupFilterButtons.
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Oct 17, 2009
When it comes to threading. I've managed to adapt one of JMcIllhinney's backgroundworker codebank examples to somewhat suit my needs, but not completely. I have a main form, and a second form that appears while I'm running through a for loop. It informs the user what is currently happening. I set up a backgroundworker that allowed me to continue to use the main form during the for loop, but the other "status" form was completely frozen, and any labels or graphics were shown as white boxes. I am struggling to figure out how to be able to move/interact with both forms while the loop is running.
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Oct 31, 2011
I have made a vb.net application which has 63 forms. On each form label2 should contain the username using the application. The first form displayed to the user is the login form. When the user clicks the login button on this form the user name in all newly opened windows should appear inside label2. How can I do this?
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May 17, 2010
I'd like to make a simple program where my form consists of a textbox and a button. Here's the ide in a nutshell:in form1_load I invoke the sub:
private Sub LoopingLesson()
dim i as integer=1
while true
[code]....
what I want is when i hits certain value, like let's just say i is divisible by 365, then the 'while' looping will stop, and a message box saying "target reached" appear. then after I click button1, the looping will resume until it reaches the next number divisible by 365, and so on.
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Mar 4, 2011
In a program I'm working on, I want a "Loading..." dialog to close when it can't log in to a site using the username and password provided by the user. Basically, I have the code set up right because the function it is supposed to carry out when that occurs does work, but for some reason it ends up in some really weird stuff happening. In the Loading form, I have it set to do "Form1.Show()" and then "Me.Close()", assuming it would simply show the login form and then close the Loading form. However, when this happens, the Loading form closes, and then for only an instant Form1 shows, and then the Loading form shows and Form1 closes. This happens forever until I stop the debugging, and I can't seem to figure out why. Am I using the wrong method? What exactly does Me.Close() do anyways? All I want to do is close the form and open another
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Mar 9, 2011
I know I am missing the obvious. I would like a label to show how many cycles in loop are left.
[Code]...
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Nov 23, 2011
I 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.
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May 3, 2010
I have written a function that gets the alexa ranking of a given url, now this function works perfectly but I want to loop through a ListView of urls and grab the alexa rank of each item (url) with my function.The code works great if I put a MessageBox in the loop to test that the function is returning a value but when I remove the MessageBox the loop does not work.I need it to loop through adding each result without a MessageBox stop in each loop.
vb
For Each Item In ListView1.Items
Dim result As Integer
result = GetAlexaRank(Item.Text)
[code].....
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May 31, 2010
So I made a simple patform game where the player has to jump quickly while the platforms move to the bottom of the screen, as to not touch the bottom of the screen. But, I need to know how to create a loop to loop the locations of the platform. This means that after twenty or so platforms, the same platforms come up again, so that the player will have an "endless" game. I've declared all the platform's locations relative to the location of the first repeating platform:
[Code]...
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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 29, 2012
I have this little application that runs a SQL query works great, now I want to have a Start Button run the and display results then System.Threading.Thread.Sleep(300 * 1000) for 5 min then run again and display results and loop till I buttonstop_click. unsure if the sleep is the best method.
[Code]...
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Sep 10, 2009
I am new to VB programming. I have the following code. When I execute my program only the last value from the loop is displayed in the label. I do write my code so that all of the values (years 1 to 5) show up in the label?
[Code]...
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May 9, 2011
I'm completely new to working with more than one thread at a time but I've been reading up on backgroundworker quite a bit today. I get the general idea and think I could use it ok if it weren't for the fact I have a loop in a loop and I don't think they could be run inside a single thread together
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