I have set up a scheduled task on startup in WINDOWS 7. This loads my app and displays information from .txt file sources. Mostly it functions correctly but occasionally loads the program twice or even three times thus creating errors trying to open files that are already in use. I seem to remember there is some way to load an .exe once only?
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Public Sub ReadSample()
Me.Focus()
Do
Application.DoEvents()
[code]....
When i put:
Private Sub ThinkSec_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
ReadSample()
End Sub
The application wont start.But when I put the sub to run when clicking button, it works.Why?I've tried all do until, while, for etc variations to get it correct but i have no success.
I would like to know how to make it so that when someone logs in to my program. MySQL takes their info and loads them into My.Settings Like MySQL Username(Their username on the table. Not the mysql username) = My.settings.username MySQL Amount of money = My.settings.money MySQL Level = My.settings.level
View 4 RepliesI have a screen with a listview. I can populate the listview when the program loads. But when i add or delete data the listview is not updated. Here is part of my code
Sub RefreshScreen()
Try
dt = New DataTable
[Code].....
how do I impliment progress bar with my load url basicly I have a list bix that loads url and I want progress bar to work with that, I allready made progress bar at the bottom of my project just dont know how to impliment it
I tried code bank on this site also tried search but every thing I come across is nto what I want :s I just want my progress bar to load as my list is been generated in my list view, I tried adding timer to load progress but its not working as its making a progress bar load after my list is loaded in my list box
Basically, I have a program which screenshots the form when the person clicks their mouse button. Afetr the click it will store the screenie in a bitmap.But the problem how would I store loads of picutres in different bitmaps if they for instance clicked 100 times without having to declare the bitmaps 100 times and seeing if each has a image and then checking thge next 1.
View 1 RepliesI have an app that connects to a remote database.The connection to the database is triggered by the form load event of the main start up form which prompts the user for user name and a password.Here is my problem:Sometimes it takes a number of seconds for the database connection to be established after the user has double clicked the desktop icon. this means that during this period it appears that no action is taking place until the startup form becomes visible.Some impatient users assume that nothing is happening and double click the icon again.What I want to do is to have a graphic image or something pop up on the screen immediately when the program starts that displays something like 'Connecting To Database, please be patient"
View 1 RepliesHow can I make the webbrowser control wait until a page finishes loading before continuing on to the next lines of codes?
View 2 RepliesHow to make when the program loads to give 1 textbox to enter password: if they enter wrong password to give them message that the password is not right and to try again..if the password is right to open the corect form.can someone help me with that i have made 1 keygen program and i have insert there the keygens and to make the program to has more than 1 password inside to check
View 1 Repliesi was wondering if i can copy my application to the startup folder in windows when the form loads. The path i want my app to copy to is: C:Documents and SettingsAll UsersStart MenuProgramsStartup
View 1 RepliesI am making a program that will fill in some info on a form. The information that needs to be filled is:
[Code]...
The thing is i need the program to click on a button on a website then open a new tab with the page it just clicked on, fill in email and click submit, then fill in the info that is above before pausing. I would also like the info above to be randomized each time the new page loads so it is not the same. I have already looked on this site and cant find what I am looking for.
The PrintPreview dialog loads and correctly displays the correct number of pages.When the Print button on the dialog's toolbar is clicked, only one blank page is printed to the printer.Seperately, when calling the PrintDocument1.Print() method, all pages are printed correctly to the printer.[code]
View 4 RepliesWithin the program, there is a button that opens a file inside of a second form ( DocViewFrm ) and it works fine the first time around. Within this new window, there is a button that uses Me.Close() to close the window and return to the main window. Upon the attempt to open this second form a second time, the program crashes on the Me.DocViewFrm.Show() line. The error message reads:
An unhandled exception of type 'System.ObjectDisposedException' occurred in System.Windows.Forms.dll
Additional information: Cannot access a disposed object.
[code].....
I put a shockwave loader into my VB.Net application. When the shockwave loads, it opens about 20 different IE windows and says page cannot be found, while correctly loading the shockwave movie into the application. It's bizarre... how do I fix this? Not even sure if I should post this in this forum or a flash forum.
View 5 RepliesI have this code to add ToolStripMenuItems when my form loads.
Dim i As Integer = 0
Dim stanicastring As String
While i < ListBox1.Items.Count
[Code]....
My application is runs without any external dependencies like .dlls. When I run my app, the controls flicker on as it loads. It's not terrible, but it's annoying and kind of takes down from the professionalism. I was trying to figure out what was causing it and found out that it was my background image. My background image is a jpeg and I guess it is too large. Is there a way I can get it to load the image better so my controls don't flicker or maybe use a different file type that is smaller?
View 3 RepliesI was testing out for how to make vb.net not load vb.dll at runtime and the code is like this: [Code] I am just curious about this. Is there a special reason behind? Or is this merely some kind of bug?
View 12 RepliesIve created an application that reads plugins but I can't figure out a way of making a form thats housed in the plugin into an MDI for my existing application.[code]...
View 3 RepliesI want to be able to make labels on the form change with user-entered variables (that they would do before this form appears) and so when this form appears, I want the variables to already be displayed in the labels without them having to press a button, or click on something.
[code]...
When my MDI child loads, its maximized. This makes it display an icon on its top left conner in the parent's toolbar. Is there any way i can do away with this default, MS icon!!
View 13 Replies[code] how do i apply that to all 30 textboxes when the form loads.
View 3 RepliesSo in this program that I've made, I have 5 tabs. One of them uses this chart control for .NET ver 3.5 that I downloaded from the Microsoft website. The issue is, though, that when I start the program, everything is fine until I click on the tab with the 3 charts on it. The tab freezes a little bit, and it takes a few seconds to load the charts. After this initial hiccup everything is fine, but I've tested this on three computers now and it happens to all of them. Anyone know what I can do to make these charts load faster or smoother? This is quite a roadblock.because otherwise I'd be done I've been working on this project in VB.NET for the past 3 weeks and it's my first time using the language. So far every single one of my questions on here has been answered and all within a day or two
View 5 Repliesi have a datagridview and a textbox when the form loads i want to enter text in the textbox then in column 1 in the grid whenever it is focused i want the text from the textbox1 to appear no matter how many records i enter until the user changes the text for the next lot of records,
View 3 RepliesI have a table Called inventory, one of the columns is a checkbox based column called saved where it stores the checked state as the value 1 on the database. On a related form when i load it i want the datagridview to filter to only show the rows where saved has the value of 1.
View 5 RepliesHow do i go about creating an exception handler when i want to login to my form to access the rest of my forms. The username and password are linked to server.What if it doesnt connect to server? here is coding for me to login:
Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
If (txtUName.Text = "-") Or (txtUName.Text = "0") Or (txtUName.Text = "") Or
[Code]....
I wrote this application in VB2008 and it ran for three years without problems(It had one first chance error during that time but ran correctly). I started having problems at the first of this year with a textbox not showing the update for the date code correctly. So I thought that maybe some update to the system had changed and I might need to do some code changes to take into account for these updates.I first tried to convert it to 2010 but the conversion would not operate correctly even though the code showed to be correct.It would jump from one form to another in the middle of a if statement using debug to step through the code. the if statement would just test for a variable to be less than 2 and then be changing the text in a textbox. So I decided that It would take longer to correct the converted application then to just use VB2008.
So I went back to VB2008 and my XP to find out why the date code had quit working. This code had been working correctly for three years.I was thinking some of the code used had become outdated in some way, because a copy of the original source would not run in debug mode correctly. It showed the same problem of not updating the textbox. I stepped through debug and found that it was doing the same thing as the VB2010 version and jumping in the middle of the if statment. So I rewrote the code and used the format string command to build the date code in stead of the seerating out the date into 3 variables using a split statment.This works for the textbox problem and stoped the jumping to a different form. But since I have went back to the original code I have the first chance errors comming up.
I have several first chance exceptions being thrown from debug. This happens when I fisrt start the debug and I have put break points all through the applicatins to try and find the problem I have also enabled debug exceptions Common runtime thrown and it still gives the exceptions but no break point.I have option Strict on. There is no errors or warnings showing after a build. I have cleaned the solution and exausted all my methods of troubleshoooting this problem.The following is what I am recieving while in debug mode in the immediate window.
A first chance exception of type 'System.IndexOutOfRangeException' occurred in LABEL MAKER 2 Forms.exe
A first chance exception of type 'System.IndexOutOfRangeException' occurred in LABEL MAKER 2 Forms.exe
A first chance exception of type 'System.IndexOutOfRangeException' occurred in LABEL MAKER 2 Forms.exe
A first chance exception of type 'System.IndexOutOfRangeException' occurred in LABEL MAKER 2 Forms.exe
A first chance exception of type 'System.InvalidCastException' occurred in Microsoft.VisualBasic.dll
A first chance exception of type 'System.InvalidCastException' occurred in Microsoft.VisualBasic.dll
Now if I run this as a published application I get the same error as the first one on the above list and it gives a error window with continue, exit,and details, if continue is pressed it will allow me to continue and the application runs correctly.The details just say basicly the same as the error with no error number and that the error was in my application.exe. Nethier of these errors will give a break point so that I can find the problem. The problem does not appear to be in my code because this happens before the first form appears.
I have a vb.net project in vs2008. When the project loads, one form is always immediately marked as changed before anything has been done to it. This didn't happen in earlier versions of the form. Nor does it happen with any other forms, classes, modules, etc. I have no idea why it is occurring but I am curious.
View 4 Repliesis what I have so far. I have a form that needs to load a file externally and populate the combobox. I can get that part if I use a button, but I don't want to use a button. I want it to populate when the form loads for the first time. The below code does not accomplish this, it doesn't even try to load it. I put break points in this code but it never breaks
Private Sub mortCalMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'sets listview values
[code]......
I was working a To-Do-List project. Everything is fine, but, program not saves list group view.
Before save (with groups)
Restart Program (no groups)
Program loads list without groups. How to load with groups?
I am using following code to raise UAC window. It works fine but my form that contains button to raise this window is shown twice. I mean if I put it in CopyFiile Button, when I click this button, it raises UAC windows, copies file, gives success message and then opens another instance of the same form that contains copyfile button.
Dim proc As New ProcessStartInfo
proc.UseShellExecute = True
proc.WorkingDirectory = Environment.CurrentDirectory
[code].....
