Set A Timer To Periodically Save Value Of Variables To Database
Jun 7, 2010
Im currently writing a sort of Tamagotchi game or "virtual pet". It's really basic, it runs on timers and has a health meter, hygiene, happiness etc. The problem I have is when the program is closed it obviously resets the properties back to the origional settings. Is there a way I can save the state of the program so when the user opens it back up it is as the same as of the point when it was closed?[Just had an idea, would I set a timer to periodically save the value of the variables to a database and then have them load the next time the user opens the program, for example if the health was 50% on closing or at intervals it would save the health into a column in a db table then when the user re opens the program call that db?]
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Oct 14, 2009
I have a program where I need to periodically save the data to a database (if the computer suddenly shutdown) and also send the same data to a serialport.Alla data that is going to be sent and saved resides in two classes.his needs to be done every 1/10s.What's the best way to manage this?
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Jul 9, 2009
I have a timer on a page in ASP.NET.
After a certain period of time elapses, I want to disable the timer.
I want to put a static variable in the timers tick event that will track how many seconds have elapsed.
My question is, will this work?
If user X and Y are viewing the page will they both have separate local static variables?
What is the best method of shutting down an ASP.NET timer after a certain elapsed time?
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Mar 31, 2011
I have created a windows service and I have two different timer variables in there. 1st one fires off every 5 seconds and then does whats it is required to do. The second one fires every 30 seconds.
I make sure that when the function are getting executed I disable both the timers and enable once the function is complete.My problem is my second longer (30 second ) timer never fires only the first one is firing. I had created this service 3 months ago and it was working fine till now. But now I do not see the timers work properly in a simple windows app i created to test their workings.
[Code]...
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Jun 11, 2011
is it possible to run SQL query periodically in vb.net? my system should update database B if there is an anamolly happen in database A
i just wanna run UPDATE query periodically every 5-10 minutes
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Mar 15, 2012
I'm making an alarm clock whose form's backColor should change randomlly every 5 seconds. I am not sure as to how to do this. I'm using a timer so after the alarm clock's given time matches the current time, a song will be played. But I do not know how to count the seconds, or milliseconds that pass after starting time.
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Jul 21, 2010
I have a function that returns a bitmap meant to be used as background in a panel, and occasionally I'd have to call it to create a new background based on parameters
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Feb 1, 2011
What I am looking to do is ping a server every 30 minutes to an hour or so and to send an email if the server is not pingable. [code]...
I am creating the project in Visual Studio 2010. All it does now is check if it can ping a server. I would like it to run this code every 30min.
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Jul 9, 2009
Ok so I'm working on an anti-hack program for my online game and when the game is running it hides its self in the background. I need it to periodically or always(Would that slow down the computer its on?)check if processes are running so it can stop them. If possible I would also like to know how I can have it so if the anti-hack's process is closed, the client.exe process will also close.What I have currently is:
[Code]...
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Dec 11, 2009
I'm using Visual Basic 2010 and I'm trying to make a countdown timer and after I close the program the time which is counted to be saved. For example if I make a countdown timer to count 24 hours and I close the program at like 23:58:48 and then I start it again I want to continue the coutdown at the time it stops or to continue during the close time.Here is the code that i use:
Code:
Private alarmTime As Date
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Me.alarmTime = Date.Now.AddMinutes(1440)
[code]....
So with this code i can save the label text but when i try to make it run from it after the close it turns to somekind of a code and it countdown 50 min and the difference in the input time change it very slightly.
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Apr 19, 2010
I am trying to build a game (out of fun) similar to those text based games like Wars, iMobster (which can be found on Facebook/iPod). And I came to the point where I need to create a Save/Load system. My game currently has 50-ish variables, and it would be nice if there would be a way to save them in the application themselves, so when it is opened the next time they are all there. I know I can write the variables to a .txt file, and then pull them from there, but those are easy to modify, plus that means one file for each variable (right? Unless there is a way to save all my variables into 1 .txt file?).
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Aug 20, 2009
I've got a RPG style game I am putting together - mostly to teach myself vb.net. I am using alot of global variables to hold game values.[code]...
My question is -- I am trying to make a "SAVE" and "LOAD" the game's state. Is there a simple way to save the values of all my global variables, without having to type everysingle variable out. Is there anyway to call upon all my global variables at one time, and possible save/load them to a text file ?
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Dec 28, 2010
what is the best way to save variables from one session to the next.when the program starts i want the defaults to be the same but as they are changed in the program the stored value should update.
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May 13, 2010
when an exception occures, I want to save the data available on the stack and log it. how can I serialize all the available local variables and save them?
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Jan 28, 2010
How can i make variables stay true even after i close my program so on next run there still true?Heres the Code i am using to set the variable (if it helps) :
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim Activated As Boolean
If Activated = True Then
[code]....
BTW this is to check if the product has been activated or not.
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Aug 6, 2009
Im looking for code that will take a screen shot of the screen every X amount of seconds and save it with a filename of like "SSLaptop Todays Date & Time"
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Nov 27, 2009
I am using the DataGridView in Visual Basic 2008 Express with an Access 2000 database.
What I'm trying to do is allow the user to click on the Row Header and capture the contents of the 4 cells in the row to 4 dfined variables. I know that I can capture each cell individually by using the CellContentClick event but this would require the user to click 4 times rather then just once.
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Nov 9, 2009
I am creating a very simple game for a project. There is opportunity for bonus marks, and one thing I would like to do is be able to "save" the game. The only thing I need to do is save about 4 variables to be recalled the next time the program runs.
What is the best way to do this?
I have searched Google, and there are ways to link the program to an Access database, but that seams a little extreme. I tried seeing if you can make an XML file to hold them, but I can't really find any good information.
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Nov 17, 2010
Is it possible to insert/put a Timer inside the Database?Let say in my Database/Tables i have MemID, Name, Membership Date and Status (Active/Expired).for example MemID [ 1 ] Name [ Juan Paolo ] Membership Date [11-17-10] Status [ Timer ]in Status is it possible to save the time even while the program is close?..or code like if MemID 1 reach 2 Days all of the information of MemID 1 will be clear and Status will become [ EXPIRED ] , while timer is running the Status is Active, and if the Timer Reach 2 Days the Status will become [ EXPIRED ]
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Feb 23, 2010
How do I read a line in a database and split and assign them into variables?As of now, i can only load the entire database into a variable
sql = "Select * from MenuDatabase" How do i read the database line by line and spit the lines according to column?
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Sep 9, 2011
I am writing some code and want to check if certain things are in my database. Is there a better way than just creating a new string, performing the select and storing it in the string? I have to do this a few times for several items in my DB columns, but is there a way I should be doing this that would not require me to make a new string, and a new select for several items, well a better way? The items in my db aren't all strings and the data types vary.
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Feb 27, 2012
i'm using a timer to open a database and drop in a few fields of info, such as date, time and 3 traces.
the timer interval is set to 1000msec, but after its been running for a day or so, i've looked into the data and i can see there are periods where no info has been logged. sometimes its as little as a couple of seconds, and other times its upto a couple of minutes.
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Nov 17, 2009
I'm trying to put together a quick program for our database, I haven't touched VB since vb6, and we have 2008 .NET now. my question.
Ideally I'd like to make an array which can hold multiple values...such as
Job[job#].joblocation
Job[job#].jobsupervisor
So there would be a Job array, and then different values contained within that. I can't seem to make an object or whatever which allows me to hold different variables inside it.
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Dec 29, 2009
I am developing an application where I need to make use of multiple values during the run time. These values are configuration setting of the application as specified by user and are stored in a database (more than 50 in number containing strings/boolean and numeric). I have defined a structure to contain all the variables that will store this information. At start of app, I retrieve all values from database and fill the structure which i can use when required. I am wondering if it is a good idea to declare too much of variables and keep them alive during the run-time as compared to retrieving the values from database every time it is required?
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Nov 19, 2010
can anyone teach me how to save data in microsoft access database and retrieving it back from database?[code]so, how do i save it in that and how do i load their data by typing their ic no only..
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Oct 15, 2009
Ive created one database Sql Server Compact Edition 2005, with one table ("Cliente") I know that I can created my database good, but i have a problem saving information since three textbox, in my table(With columns "Nombre" "Apellido" "Cliente". In my form there is a button save ("Guardar"). When I do click in my button appear the next message : "The column cannot contain null values. [ Column name = Nombre,Table name = Cliente ] " and happen the same with apellido and Id_Cliente. And this happen becouse my code cant save the information....
This is the code
Option Explicit On
Option Strict On
Imports System
Imports System.IO
Imports System.Data
[CODE]...
And the code for my button is:
Private Sub cmdguardar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdguardar.Click
Dim myconnection As SqlCeConnection
Dim mycommand As SqlCeCommand
[CODE]...
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May 8, 2011
I am developing a program where i will download and save an xml file from a url as abc.xml. I open the abc.xml in a datagridview with a dataset without problem.I am confused how can i read raw per raw the datagridview and assign the data in a database table? i am using vb 2008 + msde2005 express.I show the whole content of the xml file in the datagridview with the following [code]I dont know how to create a loop where i can read the datagridview line by line save data in variables (ex.strings) and save it in a databese table?
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May 1, 2012
1. First off, how do I make my path to my database relative? The path is currently absolute and is: Data Source=J:/College/AS_DSFinalDatabase1.accdb
2. Second of all, where do I save my database in the project? I want it to be included in like project folders...kind of like the App_Data folder in ASP.Net.
3. I'm recieving an error whenever I try to populate more than 1 DataGridView upon form load for some reason...I've tried 5 different ways of writing the code, and I get the same error...there's no error description, so does anyone know what the issue is? Here's the error:
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Aug 26, 2009
I have this
[Code]....
I want to check if the variables sUsername and sPassword are in the database, now the SQL syntax looks fine to me, but I am wondering how do I execute the command (I thought it might be scCommand.ExecuteNonScalar), and I'm also wondering how do I check if it returned any results? The other question was, this can connect to my website's MySQL database right?
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May 22, 2009
I have written a web page which connects to a database and then display 3 values from a management reporting system using the database.
I am accessing a database using the following code:
<asp:SqlDataSource ID="SqlToVersion" runat="server"
ConnectionString="<%$ ConnectionStrings:WebImportOnServer %>"
SelectCommand="SELECT [VerNo], [PeriodName], [PeriodNo] FROM [atblVersion]"
[Code].....
but it is how to replace the question marks with valid code that takes the values from the bound fields that I am stuck with.
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