I have this code.I need to loop through it, until button 2 is pressed.I also want to count how many times its looped and show how many times in a label.
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
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I'm using loop to read data from sql and then make some calculations then save it again to another table but when application loop for 3 or 4 times it's freeze but the job is done but if loop = 10 or more then it is freeze and hangup for long time .i need to learn how to make my application working better and never freeze and make application working with any count for loop without freeze .
View 7 RepliesDoes a For-Each loop in VB have an iteration count, or would I have to do that myself?
View 5 RepliesDoes anybody know how to count the number of iterations in a for-each loop? I want to have a variable inside the loop, returning the corresponding counter every time the loop iterat
View 5 RepliesFor loop statement with .count method
View 1 RepliesThis loop takes forever to run as the amount of items in the loop approach anything close to and over 1,000, close to like 10 minutes. This needs to run fast for amounts all the way up to like 30-40 thousand.
'Add all Loan Record Lines
Dim loans As List(Of String) = lar.CreateLoanLines()
Dim last As Integer = loans.Count - 1
For i = 0 To last
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My loop that needs to count and accumulate the numbers from a list box does not work. When I debug it reads the first line of the Do While loop then jumps to the code where it would average the numbers. Here is my code:
'calculate average
'get first item in list box
lstListBox.SelectedIndex = 0
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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
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As you all know, If the dataBase requires a numerical value then an error will occur when the user tries to insert the incorrect data type. With the code below after the user types in a value beside an int value type then it will go into an Loop through more than what is needed. How can I apply the same logic but allow the program not to check the 60 rows (I set the row size to 60). I want to break out of it if there are blanks ONLY if a row is blank and not for a black cell, because if the user leaves one cell blank then it would loop through the 'for each' for how many rows that they is. Initially there are 60 rows.
MIS
For Each item As DataGridViewRow In dgvLaser.Rows
If IsNumeric(item.Cells(3)) Then
Exit For
Else
MessageBox.Show("Check Record Count. Numerical values only..!")
End If
Next
I am using a label inside my loop to get a count on the number of records processed by the loop. during testing of the program I noticed that if I load a smaller Table( 1000 records) my label stops refreshing after about 110 and my mouse turns to an hour glass. The program finishes and the label returns the correct count when complete If I load a larger table (10,000 records) it works all the way through???
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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.
View 5 RepliesA few years ago I have been busy creating this application but it didn't succeed, now Im coming back to it and similar problems occur. Basically I use SetPixel on a given window to draw a line, work fine, but the line goes away as the window redraws itself.The problem: I have been putting timers and threads on it to make sure the line is being drawn. Is there any way to make a loop to make a certain thing happen about 10-30 times without taking in too much memory/CPU?
View 7 RepliesBasically 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.
View 2 RepliesHow do I make a loop from 1 to 100 and make it everytime it loops display incrementing numbers to the screen?
View 1 RepliesI am working with VB 2008. I want to be able to run this program say in N: and it will show me in an excel sheet the following:
Folder Path Size(GB) Count of Files
N:Clients 0.53 308
where clients contains subfolders and files and the size is the total of all those files within each folder and the count is the total within each folder also.
This works fine as it is but i have to select one by one the top level folders and some of them are huge so it takes forever to give me an answer.
1) I would like to see in my spreadsheet the following by only select the network drive n:
Folder Path Size(GB) Count of Files
N:Clients 0.53 308
N:Software 10.7 15430
N:Billing 0.98 105
2) I would also like to know if this is the faster method.
3) I tried adding a progress bar so that the user can have an idea of how much this will take but i had to remove because it was not working.
4) I would like to see the folder name, size of folder and count of files in the listview.
Here is the code:
Imports Microsoft
Imports Microsoft.Win32
Imports Microsoft.Win32.Registry
Imports System.Collections
[code].....
I am making the simple timer module which will display time in count down format as if user want 1 hour 3 mins and 30 sec so it will count in revers. I have almost half code done but after trying the all tricks and logic I didn't got any thing the out put is not proper as which I want.
The code is as follows
Public Class Form1
Public hh As Integer
Public mm As Integer
Public ss As Integer
Public totalsec As Integer
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I have an IEnumerable as a result of LINQ, which contains Value and Count. After I get the result, I want to do a string manipulation on the Value and make the corresponding Count to half. Is that possible with LINQ?
View 6 RepliesI am just wondering how I can make a listbox count the number of selected items and display it in a text label. My listbox selection mode is on MultiExtended.
Also, can someone provide the definitions for:
SelectedItem
SelectedIndex
TabIndex
Heres my code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code].....
I managed to sort that problem out all by myself! I'm getting good at this. I just wonder if one of you could possibly tell me how to loop? I need to create a loop that counts up the a balance in a database then adds it together?
View 3 RepliesMakes 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
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I have added a column to a Datatable called CallsPerDay which is there to tell me how many telephone calls have been made on a particular day or days.Is there a datacolumn.expression which will allow me to Filter on the day, count the rows and then populate this added column with the result.
View 1 RepliesI have some reports that I use with the MS ReportViewer and I need to get a count of the physical pages (as opposed to logical page count) to use with a print dialog. I've implemented a workaround so the ReportViewer control displays the correct number of physical pages, but is there a way to get that value from the ReportViewer control? The only publicly accessible property gives the logical page count.
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1) Diff b/w nothing & string in terms of variable declaration.
2)Erase keyword.I have never heard of such keyword in mine whole 1 + yrs of exp.
3) Diff b/w functions & properties? I say,Functions return a value,But propertiesare used to set or get the values. He say properties also return a value.
4)How can we use a class as a datasource?
5)Partial Class? hey frnds above question is for C++ na.Or there is also such class in VB.Net.
6)When the error stack overflow comes?
7) How we can we make indefinite loop , without uusing any variable declaration.
VB.NET While 1 = 1
Dim localRecv As New StreamReader(localClient.GetStream)
Dim aString As String = localRecv.ReadLine
localRecv.Peek()
MsgBox(aString)
End While
Basically "aString" will keep updating if new data arrives to the server. This way does work, and keeps MsgBoxing every time I get new data, but I don't wanna use While, I need something else, because It won't run any other code, just keeps looping that. :/
I got my code and the number are finally right the only thing is i can not get it to loop right. It should ask the user if they would like to buy more bars and if they say yes it should continue if it says no then it should exit but everything i am trying is not working.[code]
View 3 RepliesI need an additional loop argument within an If statement that resides in a very large do...loop block. It will speed the application considerably if I can have the do...loop block loop prematurely. I already have the remaining code after the additional loop argument in a large if...elseif block to achieve the result, but making it simply loop instead of going through this would speed the application.
View 8 RepliesI am trying to make a loop that is going through my listviewbox.
Dim InterestPaid As Double
Dim month As Integer
Dim Principal As Double
Dim Balance As Double
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I am fairly new to VB (or any programming, for that matter) and assignment for my class. I am supposed to write an application that asks the user to enter test scores, and when they are done inputting test scores it displays the average. here is what i have so far...
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Basically, Is it possible to get a grids row count using jquery.if my grid has 20 rows in it not including the header or footer, i want to now the count of actual rows, this will tell my users how many tasks they have in their list.
View 3 Replies