I am having trouble writing the code to start clock at 4o mins & count down by 1 second to 0 mins, have MessageBox("time up"), then go to minus time , e.g. -5:22.
View 13 RepliesI want to create a Timer such that I can reset the time to say 00:00:00 (hrs:mins:sec) and be able to stop, reset and start the timer as needed. I have actually created one from the scratch but it seems like it is long on code. Any ideas on how best to do this?Only performance counts!
View 19 RepliesI've done what I thought was a lot of work with DateTime and Timespan but what I am trying to do now I cannot figure out. It seems simple enough but I can't think of the code I need to make it work >.<
Currently I am using a timer to tic on 1000ms to count down a timespan. However, what I would like to do is set a timer for 30 minutes. I would like to display the minutes:seconds of the timer on a label and perform actions when the minutes and seconds are specific values, say minutes = 5 AND seconds = 0 to perform an action when the timer reaches 5 minutes exactly.
My goal is to have a 30 minute timer that performs actions at specific times, then when the timer reaches 0:00 it restarts at 30:00 This seems like such a simple task but I cannot for the life of me figure out where to start.
how to hide form1 for 15 mins before it shows ((In VB 2008)) but it is still running?
View 5 Repliesafter reading a topic that Chris Rutland wrote about student in final year (link)[URL]...So i was able to complete this in roughly 15 Mins give or take. it also said multiples of three and five. Which i would have understood as 3 * 3, 5*5 as so on, but when I thought about it they would never match within 1 - 100 so I took I must have misunderstood so I then done it as 3 + 3 and 5 + 5 and so on. Which would then give matches for FizzBuzz. So my question is from my code below what would you do different. Could any of you write this with less lines and if so how.
[Code]...
I have developed a application on vb.net platform. After installing, whenever I run the application and close it, it stays in the memory and pops up again after approx 5 mins.
View 2 Replies23430 seconds = 06:30:30 (hh:mm:ss)52230 seconds = 14:30:30 (hh:mm:ss)The problem occurs when my total seconds goes over 24 hrs. So for example,95430 seconds should equal 26:30:30 (hh:mm:ss) however comes out at 02:30:30.Here is the sample code, note I have tried using TotalHours, TotalMinutes TotalSeconds however this does not give the correct result. I potentially need to be able to calculate upto 1000 hours - e.g 3601839 should equal 1000:30:30 (hh:mm:ss)
Dim ts
As TimeSpan = TimeSpan.FromSeconds(95430)
Dim hours
[code].....
What I want is: To scan a website every 15 mins or so, (craigslist in this case), and email myself any new posts that come up. I know I need to use WebClient, but I never used that before. Another question would be how to only email when a new post is up and not receive the same email every 15 mins.
View 2 RepliesI have developed a windows based clock program using C#,which has all clock functions like: Show time in Digital/Analog Format. Set up Alarm. I want its service to start with windows boot up, so that I don't have to manually start it every time I logon to Windows. I would like to know how do i put that service in start up? For Example: I want the service "ClockService.exe" to run with windows start up, kindly let me know how do I do it.
View 1 RepliesMy project is due next week and im stuck with how to write the codes. Can someone please tell me how to start writing the codes?
View 5 RepliesI want to create my own language for my software, I want to make the language simple, and I want to create my own syntax for this language.So currently in my software, I have a code editor, the code in the editor will be saved, and when the program that the user is making in my software runs I want to read in the users code, and do something with it (depending on what he/she wrote).
I want to start out by writing the constructs (if/else/elseif, while, for, foreach, etc.). Next I want to add some basic functions (add, subtract, messagebox, etc.).What process would I have to take to get started, and how would/does something like this work with vb.net?
how do i add another page to the document and start writing to it in vb.net
View 2 RepliesI'm a totally newb to VB and I want to do this. I want to do display system clock into a textbox. The trick is that I want it to be synchronized with the Windows XP clock. I want to have something like +/- 100 ms accuracy.
Each 'second' change will trigger an output pin to ground into the parallel port. This is very important that the 'second' change in the same time the Windows XP second change. Do not care about the parallel output thing, I'm nearly there. My main concern is the synchronisation with Windows clock.
In my code, I've added a counter that increment +1 at each 'second' change. So, when the 'n' value will reach a determined value, it will trigger another event.
[Code]...
I searched on the net and I found a thing about NIST time server.. Maybe this could be an otpion, but I have even no idea about how using it... I'm a total newb, but I'm ready to learn. So, please use simple language, no hard to understand acronym etc.
I have a program which has 2 forms. I execute form1 first because it reads files and then writes to a file. Then I execute second form (form2) that will read the file created by form1.
How could I make form1 start form2 once it finishes reading file and writing to a file?
i grow familiar with statements queries of SQL. Now, i have to start writting a store produce and function in SQL Management studio express.
View 1 RepliesI have a program that runs some code when i click a button on a form when done running the application ends. I want to automaticaly run the code when the users clicks on the exe. I have put the code that i want to run in the startup forms load event but that doesn't start
View 2 RepliesI have information entered into a text box on an ASP.net 3.5 page. when i click the submit button i would like this information written to a sql server database. what I need to do to accomplish this. The end-user should not see anything.
I am using visual web developer 2008. the event handling code is placed in a separate file using vb.
I am trying to write a code to set a service charge for a checking account to calculate by adding $4.50 to a value computed by using the following specifications: $0.14 per check if less than 10 checks were used, $0.13 per check if less than 25 checks were used, $0.10 per check if less than 50 checks were used, and $0.08 per check if more than 50 checks were used. How do I write $ in a code?
Here is the code I wrote:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If Val(TextBox1.Text) < 10 Then
[code]....
the timer dosnt work if i checked the checkbox. [code] this is how the program looks like
View 38 RepliesI have made my application to start automaticly when windows start (registry ../currentversion/run/appname + path). In this mode the application start minimized and an little icon appear in the notification icon area. With this icon you can maximize the app or exit it.If you exit the app and start it again using the Menu (Start/programs etc) than the application start in minimized mode (and in this case I would like to have it in normal mode) because the setting autostart is still true.Is there a way you can detect when the application start when windows startup using the above registry or when people click on an icon in the programs menu (or desktop)?
View 2 RepliesI have been given the task of basically reading and writing to and from files. Below is the code from one sub:
If btnSaveRecipe.Enabled = True Then
FileName = "C:UsersLeylaDocumentsRecipe TaskRecipe.txt"
FileWriter = New IO.StreamWriter(FileName)
[code]....
I can't work out what i've done wrong, but when I open the file itself in the folder, it is empty.
I am doing the project to make a microcontroller communicate with PC. I am facing the problem writing the C++ code for command button to ask uC to display the data in my label. How to write the code for C++ to get the data from the microcontroller?
i'm using a C8051F320-dk which already have a USB connector and a RTC.
my data will be the date, and time provided from the RTC.
Public Class Form1
Private Sub PictureBox7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PictureBox7.Click
[CODE]...............
I need to Add a button. Call it AddOne. Make the button caption say 'Add 1'. The 'on click' code should add 1 to the DigitValue every time it is clicked.
i wrote an application in VB.NET and since i charge by the line, i would like to calculate how many lines i wrote. i have about 100 different vb files with my code. how do i count all the lines?
View 8 RepliesI have a form in which i need to add column depending on the counts of records in database. For that i need to set column count using code.
View 4 RepliesWhere should I write the header file - Using System.Configuration and others? When I write it after the Inherit line in the form code (not the HTML one), it gives a redline under it. I want to start making a website.
View 1 RepliesTo write code to implement data from visual basic into excel. Write a VB.NET program to store the following numbers into an array named �Scores�: 89.5, 76.2, 90, 86, 81, 97, 61, and 73. Your program will calculate an average score, list each of these scores in a new Excel workbook and show whether each score is below or above average. Your program will then save the Excel workbook as TestScores.xlsx.
In column A1 it should say "average" and next to it (in b1) should have the average of all those scores. in the cells below (starting from A3) it should list the scores and the column next to each score it should say whether each score is above average, average, or below average (compared to the average calculated in cell b1)
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]...
So I'm trying out a concept tool of mine where I need to be able to read and write data from a database real easy. I've set up the form as I like and spread around different text boxes and dropdownboxes to read the data from the database. And I've got it all to work and all, but there's a small bug I don't fully understand why's there. Some textboxes don't update the text from the database.
But it seems as it only occurs if the data in the database is nothing. So the value from the last row is still hanging in the textbox and thus, clicking "Update" actually updates the value from the field from the last row, into the new row. Messing everything up.
[Code]...
I am trying to minimize my code writing. I have DBLayer base class that selects, inserts, updates and deletes records from database. I need only fieldlist and table name from each derived classes to perform the actions. I have defined static tablename, fieldnames in derived class. Currently I am defining next static functions in derived class for GeneralSelect [which selects all records], GeneralInsert[Which inserts a records], GeneralUpdate[Which updates records as per given id] and GeneralDelete[Which deletes a record of the given id]. The parameter and all functioning are same just the differece is the table name and fieldnames.
One DBLayer Class that performs database actions
Class DBLayer
Public shared function Query(byval SQL as string) as dataTable
[code]....
... same goes for all other table objects... If I have 20 database tables i have to write getdata method in all 20 class changing only the tablename so i would like to get ride of it. So in order to get ride of it what do i need to do?