I start by using the ActiveX controls and access data from an Excel file but all it does is show the excel file and the changes I made The Visual Basic screen does not pop up directly afterwards.The graphics work in other programs.
Dim gphFormGraphics As Graphics = Me.CreateGraphics
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load[code]....
When I initialize a new form to open, the subroutine in the new form starts before the new form is shown on the screen and so when the subroutine finishes and the MsgBox comes up, the form isn't showing. Is there a way to make the form pop up first before the subroutine starts?
View 2 RepliesI'm creating a basic window's application where I have a login screen where the user will enter the userid/password etc. Only problem is when I try to run the application, it goes straight to the main menu.What would give the main menu precedance over the login screen?
View 5 RepliesI am using Visual Basic 2008 to create some databases. It reads data from textfiles and puts them in SQL databases. After the user presses the Process button I would like to give the user to get some feedback of the process simply by for example label1.text += "Processing File 2".But during the process no Screen Updates are made...only after all databases are processed and VB.net is waiting for new user response it updates my label1.text
View 4 RepliesI'm designing a player application to accompany our phone system. As our calltakers take calls, it makes recordings of each call. They can go to a list module, find a recording and double click, which opens my player. The issue i have is that if the calltaker gets another call, my player doesn't know it and will continue playing. I'm looking for a way to monitor the screen in a particular area and when it sees yellow or red instead of blue, it will pause my player.
The phone system does not have any API's that I can hook onto, so I have to try it another way.
The screen resolution never changes and the queue buttons where they receive calls will always be static. When they get a call, a small area changes from the background color blue to yellow or red to indicate a call.
**EDIT Final Code based on answers below and question Memory Leak using GetPixel/GetDC in Visual Basic
Private Function CheckforCall()
Dim hDC As IntPtr = GetDC(0)
Try
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I'm trying to build my first program and I've run into a few problems with SQL. I have a database with customers and employees (among other things) and I'm trying to set up a basic login screen. Users log in with their EmployeeID (primary key) This part deals with logging in for the first time. It checks the database for a user with that ID and grabs the password. If the password is not empty / null, it shows a message box and stops there. If the password is empty/null it is meant to confirm and then update the new password. This is where my understanding ends. Debugging shows the error is definitely in the SQL update, but I can't see any errors...
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Please tell me how can i disable print screen in Visual Basic 2008.
View 13 Repliesi'm designing a program ........ i just wanted to know how to hide my program form (alt+tab) screen .........and how to hide my program from (task manager)..... and also how can i delete my program after its "FIRST OPEN" and after that it copies itself to the desktop folder.
View 8 RepliesHow can I position a form at the bottom right corner of the screen when the form load?
I use visual basic 2010 express
here;
Dim x As Integer
Dim y As Integer
x = Screen.PrimaryScreen.WorkingArea.Width - 400
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BTW this issue occurs in any MS office program when the VB.Net (or even VBA) is processing information.Example: In Excel, a worksheet is displayed on the screen. I start either, a VB.Net or VBA procedure and within 30 seconds the Excel worksheet (previously displayed) blanks out. In both VB.Net and VBA,ScreenUpdating = False. My expectation is that the previously displayed screen would stay static as if I left my desk to get a cup of coffee; came back and the same ole Excel worksheet was still there?Of course, setting VBA Screen Updating = False accomplishes two goals: 1) speeds up processing and 2) saves the user from seeing unnecessary "garbage-processing" steps.Why does VBA or VB.Net ScreenUpdating = False not freeze the screen at the time of its invoking?
View 11 RepliesI have a problem where a button at the top left of a tab control will not appear in debug or compiled. There is no code telling it to hide.
Now, I can make it re-appear by moving it, then moving it back to the exact same position. If I then re-build it will be there.
It will then be there for a number of builds, at which point it might disappear again. This seems to happen for a few buttons in my project. The common factors are that they are on a tab control (standard dot net ctrl) and near the top left of a tab page.
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Private Sub ExitButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExitButton.Click
End
End Sub
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I have my software installed on numerous machines and on all but one it is fine, however on this final computer the font comes up very small. It is only in my software, nothing else on the computer. I'm using Arial size 10 and bold, nothing fancy and as i say it works on all the others.
View 2 RepliesI have a very annoying problem with adding new records to my Access Database, I'm not getting any syntax errors but there's obviously a symantic error of some kind causing this headache. I've been developing an RFID system for two months now and spent the last four weeks trying to fix this one issue, if anyone can see wher
Private Sub m_btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles m_btnSave.Click
Dim da As New OleDb.OleDbDataAdapter
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I have been running my project using F5, it says Ready and then nothing happens. It goes it debugging mode )Play button is disabled, pause and
View 9 RepliesI added few new tables on data sheet (file name nwinddata.xsd) but the new added table adapters does not appear in toolbox whereas the old adapters were appearing. I read somewhere and followed their advice to delete the project and re add the project to the solution explorer, did that, now i can't even see old adapters in tool box all gone.When i restored my backup old adapters appear in toolblx but few days of will be lost which i don't want.
View 2 RepliesVBExpress 2010 .Net 4.0 I'm trying to have a form that you click on a button and it goes to a new page of the same size in the same location. An example of this type of thing would be the different pages of an install wizard. In this particular project, I have an "instructions" page that you click on that takes you to a new form. On this page is a "back" button that takes you back to the main screen. I'm just not sure how this type of thing is normally done. What I have done works, but you can see the page 'flip' a little, and the form button on the taskbar disappears and reappears as the new one loads.
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and I have an equivalent subroutine on the other form to get back. At first I had the Three middle line of code interchanged, which looked much smoother, but for some reason it didn't work on the first click, upon which the form would suddenly move to the wrong location, after which it would work fine, no matter where I moved the form.
I have a feeling that this is probably done in a completely different way, but can't think of a better way of doing it. One way would be to just use one form and change the controls instead, but it would get quite cluttered.
When a button is focused by pressing Tab key, a rectangle appears on it. Even if the button's TabStop property is set to false, when the button is clicked with mouse the rectangle appears. Is it possible to stop the rectangle from appearing?
View 4 RepliesIs there any way to cancel a msgbox from appearing such as an if then procedure? i want to learn how to make a login type program. very simple though with modules and seperate forms.i have a try and catch procedure set up but i would like it to see if the username and password are correct and then if not display the message box. im not sure what im doing wrong. any advice? btw this code is from the child form! also the boolean thing i just put that there bec. i was just messing with the thing to try and get it to work. pay no attention to that. everything works right except the message box comes up everytime
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However, now when I open it in design view and add a new tableadapter I now cannot reference the new objects from the code. Likewise if I delete one of the existing tables in the dataset, it still appears to be there from the code (ie in intellisense)Similarly, when I examine the .xsd file, the changes I've made i the designer appear, but the changes are NOT happening in the dataset.designer.vb file. It's as if the two files are somehow out of sync
View 3 RepliesMy regional settings are UK standard Windows XP. When I ecexuted FileSystemObject.DateCreated I get #1/25/2010 1:57:36 PM# I would expect 25/1/2010 13:57:36. Can anyone explain what is going wrong?
View 6 Repliesam writing this program as for an assignment. How can i make it so that these error messages dont show up when the train method of commuting is selected? This error message is related to the car method of commuting and shouldnt pop up. My book dosent show me anything on how to avoid this.
View 5 RepliesI'M trying to filter a certain link from appearing on web pages, so like if you load a certain page and it contains a certain html link code, it won't load it? Would I have to use dll injection into winsock, to filter this? Or is there another way.
View 1 RepliesI use VB9 in Visual Studio 2008, and I've written a program that includes a notify icon.
I have both the balloon title and text set up with the text that I want displayed but it doesn't seem to work (on this or another test machine).
When the program first starts, the balloon appears in the system tray, then quickly disappears.
im trying to get details from a listbox to appear in a string during run time. I have a string called strSQLselect and want it to appear with the details already in the string and have the details selected in the listbox appear with it in a rich text box called rtb_select.
Hear is the code i have so far
Private Function ListOf(ByVal lst As ListBox) As String
Dim strSQLselect As String
strSQLselect = "SELECT " & ListOf(ListBox1) & " FROM " & ListOf(ListBox2) & "
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My dropdown controls are appearing above my menu control, is there a way around this?
View 2 RepliesPrivate Sub btnadd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnadd.Click
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I'm gathering strings from a large text document using vb.net (2010 express) and storing them in array variables. The problem that I am seeing is that each variable that is gathered is appearing as text in the title Bar of the form. Is there a way that I can prevent this from occurring?
View 3 RepliesI need to get some text that I generate to appear on a label on another form. I can get it to appear on the same form, but can't figure out how to transfer forms.
View 8 RepliesThis is something probably very simple for you all by the looks of these other thread but I can't figure it outThis is a hotel reservation order form.IsFormComplete function checks to make sure the form is complete, if true it calls GetOrderList which... well you get it.The problem is this:I have checked functionality at random and everythn there is an error, message box displays what is wrong... except one thing. When you complete everything but choose cash as the payment method and click place order, the message box pops up with the GetErrorList caption "Please Complete the following:" BUT there is no error reported after. I'm losts, I know, it's probably terribly written to begin with but I'm all of a week in to the class so I will get there.
Option Explicit On
Option Strict On
Option Infer Off
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