What Is Loaded Into Memory When Application Starts
Mar 31, 2011
I have an application that uses many forms and a couple of modules. One module modMain contains my subMain that starts the application. In subMain an instance of frmMainMenu (insFrmMainMenu) is created with a menubar. As the user selects an item from the menu bar, an instance of a specific form is created (for example insFrmViewCustomer). That instance is opened with the ShowDialog method. When the form insFrmViewCustomer is closed, a statement in insFrmMainMenu disposes the instance of insFrmViewCustomer. modMain also contains many public functions and subs, as well as public variables. The other modules contain public functions and subs.
So, What is loaded into memory when the application starts?
And Is there a tool within Visual Studio that tells me the answer to the first question?
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Feb 13, 2011
When we use system.io.ReadLines the content of the file should not be loaded to memory right? say I want to create a function. The function accept a string, say "post.txt" where post.txt is a large file (3G) I want to put the first 100k line of post.txt on post.txt and the rest on reserve_post.txt
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Jun 25, 2009
In some applications, like taskkill.exe you can send info to the app when it starts up. By that i mean taskkill.exe /f /im 123.exe.... how do i make my VB.NET app read that info on startup so i get it in a string like this "/f /im 123.exe". I have absolutly no idea what this is named,so thats why im asking here.
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Oct 27, 2011
I host a few servers for different games as my hobby, I tried to make an application that would make it easier to control the servers. Should be really easy for people who has spent more time with vb then I did,This would be the interface of the application, on the textbox below the buttons is where I can specify the patch to the application that starts the server.I tried using the following lines of code, but they don't seem to be working:
Public Class Form1
Private Sub GMODStart_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles GMODStart.Click
Dim GMOD As String = Me.txtGMOD.Text
System.Diagnostics.Process.Start(GMOD)
End Sub
[Code]...
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Mar 26, 2010
<Visual Studio 2008(VB.Net) + SQL server 2005>
I have an application for HR and I am trying to give feedback to users on login window wheather it is connected network and database.
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Aug 29, 2011
We have a Windows Forms application that needs to run on an ASUS EEE PC on-site. The application displays some data on the Form, and processes some data in the background. It is connected via Serial Port and USB to some custom electronics at the location. We could have used a regular 8051 microcontroller for processing and displaying the data, but since we added a barcode scanner along with a database into the equation, we needed a chip with an OS, so we went with the ASUS EEE PC minimalistic machine option, with Windows XP installed, and the platform used for coding the application as VB.NET and SQL Server.
We have two user logins created on the Windows machine - an admin login, and a limited user login. What we require is that when the employees manning the on-site location switch on the computer, and login into their limited user login, instead of displaying the desktop and exposing normal Windows functionality, the machine should directly start our Forms application, and not allow the user to quit or close or minimize the application in any way, but should only display our Forms application in full-screen mode. The Forms application should have a button which, when clicked, exposes the Windows Shut-Down dialog so that the machine can be shut down when not in use.
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Mar 18, 2009
i have a button in my application that starts a function to play sounds.But when the function starts a have a problem that my application stops working until all the sounds are played. Then a want to display a waiting screen to show the status of the current application. To this i thought to create a new thread to open the waiting window and then show the messages.
But i have a problem that when my thread finishes, it closes the waiting screen. I tryied to put a loop inside my thread, but this crashes my aplication until the loop condition is satisfied.
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Jan 27, 2011
I know one can select Spash Screen as the application startup as per this illustration. I can't do that however because the application is called by another program which passes in parameters via Process.Start(). Depending on the passed in arguments, I need to either
Go Directly to the MainForm or Go First to a Splash Screen which will then to the the Mainform after 5 seconds.
I definitely need Step 2 above because of the slow startup time of creating an SocketConnection and the population of some Custom Controls only after the Socket connection has been established.
Would I use a startup class or module and then use that as the application startup 'form' which could be establishing the SocketConnection while also launching a Splash Screen?
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Sep 1, 2009
I used a date time picker but everyday the date is not updated.....i added the datetimepicker on 30th and today is 1st......but the date is not updated automtically...here is a snapshot:
Attachment 72933: after adding the datetimepicker i changed its format to custom and from its value part i deleted the time......what to do if i want to update the date shown by the datetimepicker everyday when the application starts?
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Jul 19, 2007
Is there a way to auto generate unique number on the form when an application starts up and it should incremente in the dataadapter and database too. How can i set it up?
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Jun 8, 2011
I am trying to make an application which will list all processes in a string when it starts. After it has listed them all I enable my timer, and in the timer there gets checked if the process is in the process list (string), and if it isn't it will add it to my listbox. The only problem is, it's not working, it's never adding an item.
vb.net
Public Class Form1 Dim AllProcesses As String Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'The first check For Each p In System.Diagnostics.Process.GetProcesses() If AllProcesses = "" Then AllProcesses = p.ProcessName Else AllProcesses += "|" + p.ProcessName End
[code]....
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Jul 16, 2010
I want to make that program starts when computer starts. I have no idea how to do that.
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Oct 29, 2009
I am developing an application in Vb.Net 2005 and have enabled the installation by clickonce, the update occurs before the application starts. My problem is very simple, the server that contains updates is correctly natted to be available from the outside with a public IP.
The clients who access from an external network connecting without problems, download software and updates. When local clients are connected to the same network of the server (LAN) can not download anything because they try to access the server with the ip public, and the nat does not work . We can not perform operations on the DNS server or hosts file and not even on the router.
I need to figure out if i can use ClickOnce to use more than one distribution server, primary and secondary. I'd like to set as the primary server the public address and the secondary server with internal network ip address.
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Mar 20, 2009
I have a button in my application that starts a function to play sounds. But when the function starts a have a problem that my application stops working until all the sounds are played. Then a want to display a waiting screen to show the status of the current application. To this i thought to create a new thread to open the waiting window and then show the messages. But i have a problem that when my thread finishes, it closes the waiting screen. I tryied to put a loop inside my thread, but this crashes my aplication until the loop condition is satisfied.
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Apr 1, 2010
I have mainFom and a subForm. what I am trying to do is application startup MainForm is Loaded
(2) in the Load event of mainForm. I am creating the SubFom and made it visible and also making MainForm disable
[Code]...
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May 27, 2011
We have an application that allows custom UI and interaction via SDK. A DLL is developed for this purpose using VB.Net and the SDK. An object variable refers to the application and there are some other object variables for components within the application.
[Code]...
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Aug 8, 2011
I created a VS2010 application that stores data in xml files with a custom extension (e.g. ".ABC") I would like to be able to open an .ABC file and have the application launch with the specific file's data loaded. This is analogous to opening a Word doc and having Word open with the doc loaded. I have searched for a while but can't even think of a phrase that explains this process. Nothing seems to match "You know . . . that thing that happens when you double click on a data file".
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Jan 14, 2009
I have a small application (in VB.NET 2008) which gives the user the option to open a PDF document. This document is stored on a mapped network drive and is loaded in to the AxAcroPDF Control.
When closing my application I get the following message
The instruction at "0x0700609c" referenced memory at "0x00000014". The memory could not be read.
I've been google-ing this error message, but seen only a lot of problems, but no solutions.
I also tried using the WebBrowser Control, but this gives the same error.
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Nov 4, 2011
I have a gridview in windows form. When lots of data are loaded from the database to the gridview, my application hang until all the data are loaded to the gridview. Is there any way to solve this problem? I also want to display a gif image [loading.gif] or progressbar when data is being loading to the gridview to show the user that data is being loading to the gridview. But the image and progressbar also hang.
I have also one ToolTip, I want to display that tooltip in the center of the screen. My code is as follow but it is not positioning that tooltip in the center.
Dim x As Integer = TryCastInteger(Screen.PrimaryScreen.WorkingArea.Width / 2)
Dim y As Integer = TryCastInteger(Screen.PrimaryScreen.WorkingArea.Height /2)
ToolTip1.Show("It will take few seconds to display the data.", KryptonPanel1, x, y)
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Oct 19, 2009
why this error System.EnterpriseServices.dll appear when i run the Installed program as testing in another computer..
i did it in 5 computers for testing i got 3 has the same error (the error above) but the other 2 units it work fine...
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Dec 14, 2011
I have two rich text boxes, and two buttons on my screen. The first button grabs HTML from a URL and then converts the HTML to XML which resides in rich text box 1.
The second button is to grab the XML from the rich text box1 and then parse it to grab all the input elements by their ID.
My issue is that my parser isn't doing anything. My guess is that I'm not quite getting the XML from the first rich text box.
What would be the best way to grab the XML from a rich text box load it into memory and then parse the XML to grab all the ID tags?
Here is my code --
Imports mshtml
Imports System.Text
Imports System.Net
[Code].....
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Dec 15, 2011
I have two rich text boxes, and two buttons on my screen. The first button grabs HTML from a URL and then converts the HTML to XML which resides in rich text box 1. The second button is to grab the XML from the rich text box1 and then parse it to grab all the input elements by their ID.
My issue is that my parser isn't doing anything. My guess is that I'm not quite getting the XML from the first rich text box.What would be the best way to grab the XML from a rich text box load it into memory and then parse the XML to grab all the ID tags?
[Code]...
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Jun 22, 2012
How do I find the memory or CPU used by my software?
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Oct 19, 2011
I am working on a desktop application in VB.net 2005. The application contains a timer with an interval of 1 min. Each time the timer ticks, a set of functions gets executed, mostly database related.Initially the application runs fine. In processes(Task manager) the cpu usage goes to 100% every time the timer is invoked. But the timespan is around 1 sec(negligible).However as the time passes and after around 20 hours the time span of timer_tick increases to something like 20-30 secs. In this period cpu usage is 100% and the application does not responds. Gradually the time span of timer_tick increases to 1 min and the cpu uses gets stuck to 100% and the application does not responds.All objects are properly disposed. Moreover, this issue is with pentium 4 processors. The application runs fine on core 2 duo.[code]Many Select, Update and delete queries are performed in the timer.This problem occurs when I am using around 7000 records in database.
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Oct 19, 2011
I am working on a desktop application in VB.net 2005. The application contains a timer with an interval of 1 min. Each time the timer ticks, a set of functions gets executed, mostly database related.Initially the application runs fine. In processes(Task manager) the cpu usage goes to 100% every time the timer is invoked. But the timespan is around 1 sec(negligible).
However as the time passes and after around 20 hours the time span of timer_tick increases to something like 20-30 secs. In this period cpu usage is 100% and the application does not responds. Gradually the time span of timer_tick increases to 1 min and the cpu uses gets stuck to 100% and the application does not responds.All objects are properly disposed.Moreover, this issue is with pentium 4 processors. The application runs fine on core 2 duo.
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Jan 26, 2012
A couple of months ago, before I started learning C++, I made an application in VB.net that reads memory from an external program. This could be anything, from notepad to windows media player etc. I have been trying to find a way to do the exact same thing in C++, but to my suprise I can't find anything straightforward on the subject. All google comes up with is threads on several forums, where the general response is "Windows doesn't allow you to read from memory you do not own". But if it works in VB.net, it can work in C++ too.
[Code]...
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Oct 9, 2009
I'm using VB.Net, and I have a set of data which I have to able to filter through fairly quickly.Basically, the program is like google sugest, but instead of a drop-down menu, I'm using a listbox. When a user enters a word, I compare the word using LINQ and filter those that contain the user's input. The data are all strings of variable length (from 0 to 200 characters, most on 150 character mark), and I have 240,000+ of this strings and counting- all stored in an XML file.
A colleague of mine told me that loading all of that to memory (using VB.Net's XML serializer plus collections of string/objects) is not practical, and would slow the 'startup' time of the program. I haven't finished building the program yet and I'm having second thoughts about continuing this path.
So, my question is: Should I continue with my current approach on the problem (which is load everything to memory on startup), or is there a better way of solving my dilemma?
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Oct 6, 2009
screenshot application I am developing that has a memory leak somewhere. The main code is as follows:
Public
Class Form1
Dim strPath As String = "C:windows empscreenshot.jpg"
Private Sub Main()
[code].....
The application runs from the system tray and a clickevent handler for the notifyicon control calls the Main() sub. The code calls OutlookEmail() which creates a new outlook mail object. The problem is that each time the notifyicon in the system tray is clicked the memory in use jumps up incrementally - about 3mb each time.
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Jun 17, 2012
I have a problem with a memory leak in a very large ASP.NET application. After about 24 hours of usage (sometimes a lot more) an OutOfMemory exception is thrown. Therefore I am trying to understand how managed memory works in .NET. When does an ASP.NET application throw an OutOfMemory exception? The server has a lot of RAM and there is always plenty of memory left when an OutOfMemory exception is thrown. I understand the difference between virtual memory and physical memory. How much memory does the W3WP process have to consume before an OutOfMemory exception is thrown? Is there a setting somewhere e.g. in the Machine.Config file? The ASP.NET process is never recycled.
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Jun 6, 2010
is it possible to monitor my RAM-memory use of my application using a PerformanceCounter? If so, I've been looking around on the web, but my knowledge about memory isn't enough to understand what precisely I have to use
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