On my program I am trying to make a form that would activate the program.I have the activation codes but when the user enters the activation code in a text box, is it possible that it would erase that activation code or wont accept that activation code again after being used once. Then if the program accepts the activation code can it open the main form (form1) and if the user closes the program and the re-opens the program, is it possible that the activation form doesn't open again and instead, going to the main form. I have this password code:
Private Sub textbox4_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MaskedTextBox1.KeyDown
Static WrongCount As Integer = 0[code].....
Then can there be slashes every 4 characters in the text box?
I want load event to be activated whenever coming from Main page to Inputpage and activate event when coming from output page to input page.But what i am getting is that only for the first time load is activated and for all other only activate is called.
My button, ToolStripButton7_Click, activates a textbox, ToolStripTextBox1, I want the enter key to activate the button and clicking the button to still activate. I tried from you tube, didn't work.
In my project i have 4 Forms including main form. Form2 is open through main form then Form2 remain active until user close Form2.Mean to say Form2 not allow any other form active until user closer form2.
I am using VB.Net for my Windows application. I will open two child form from MDI. Both forms will open. Now if I will go from form1 to form2 then Activate event for form2 will not fire.
I'm trying to make my application become the active window if it currently isn't as soon as the mouse enters the main form of the application (so there is no need to click the title bar of form itself to make the window the currently active one if it's not).
It only sorta/kinda work .... I have to enter the form with the mouse 3-4-5-6-maybe 7 times ... then the window finally becomes the active one.
I know the MouseEnter event is firing each time the mouse enters the app, but the main window isn't becoming active most of the time.
Private Sub frmMain_MouseEnter(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.MouseEnter rtbStatus.AppendText("Just got a frmMain.MouseEnter event" & vbCrLf)
I have a program where the main form is called (shown/activated) via a keystroke combination. When the form pops-up, I've set the focus to a textbox to begin typing right away.
When the keystroke event occurs, I have:Me.Activate()And in the Form_Activated event:
Textbox1.Focus() Simple right? It works the way I want it to, even after I've compiled and run the EXE, but ONLY if Visual Studio 2008 is running. Once I close my project in VS, with the program still running outside VS, the form is shown, but input focus is not set to the textbox.
Input focus is however still set to whatever it was previously, like a word document for example. My form will be topmost, but if I attempt to input text, it would still be entered into the word doc. why having my projects' source open in VS has anything to do with running the compiled EXE of said program?
I've even tried API calls to SetForegroundWindow and ShowWindow with the same result.
I have been developing a calculator for complex math. (Much more complicated than +,-,/,*, and above your usual scientific calculator)Its works quite well .In past programs I have used "private functions". I know that you give them a value and it returns on back. But what if you dont want to recive or send value? My example for this is a function I am attempting to make called "Autopi".The idea of Autopi is that whenever a mathimatical operation is about to be performed textbox(s) are cheked to see if they contain pi. (3.14 or 3.141) If they test positive Autopi will continue pi to however many places have been specifyed in the program. (Currently 300 places just beacuse i can :) Before the Autopi function does this it chekes to see if variable "pi" = 1. If it does it proceeds if it doesent its job is done
How would I create a code that can be called apon to activate but not recive or send any information through the program.And just to clarify what I mean by that is it will read information out of a textbox and write into it. But it wont actualy recive anything or send anything back from where it was called apon.
My VB.NET app supports several kinds of MDI child forms. Some kinds, but not others, are 'troublesome' -- they cause the focus mechanism to become weird. Once a 'troublesome' child form has been opened, NONE of the MDI child forms will become activated unless I click on either the title bar or the border. Clicking in the client area does not activate the child form -- its title bar remains gray, and it does not receive Activate or GotFocus events. Strangely, however, the clicked-on form actually DOES receive the focus, because its controls receive mouse and key events. Only the Z-Order and the highlighting do not change.
Once this problem develops, it persists even after the 'troublesome' form is closed, and it affects child forms which are opened afterward. However, if ALL of the child forms are closed, the problem clears up, and new child forms behave normally -- until the next 'troublesome' form appears.
I have no idea why one kind of child form is troublesome, and others are not.
I have a form with some buttons i built in visual studio basic 2010 When I left click a button it uses 1 value...but I want to be able to right click the same button and it use a different value i cannot find anywhere how to activate the right mouse button so it presses the buttons on the form so it use the different value i specify.
My VB.NET app supports several kinds of MDI child forms. Some kinds, but not others, are 'troublesome' -- they cause the focus mechanism to become weird. Once a 'troublesome' child form has been opened, NONE of the MDI child forms will become activated unless I click on either the title bar or the border. Clicking in the client area does not activate the child form -- its title bar remains gray, and it does not receive Activate or GotFocus events. Strangely, however, the clicked-on form actually DOES receive the focus, because its controls receive mouse and key events. Only the Z-Order and the highlighting do not change.Once this problem develops, it persists even after the 'troublesome' form is closed, and it affects child forms which are opened afterward
Load , Initialize , Activate . What's the difference among them ? Up to now I was used to the classic VB6 events , but it seems that in .NET they are different . I was used to these ones :Load / Initialize : both the first step before showing a form . One appeared in VB6 , the other in VBA .Activate : triggered when a form is selected .However I thing that now , not only they differ , but they also come in a different order ...
I've recently run into an unexplainable issue regarding a windows form application I am working on. I've managed to isolate the issue to a single line of code whereby a single TabPage is removed from a TabControl, leaving no tabs left in the TabControl's collection. What happens next is a bit mystifying: my application proceeds to enter a state in which the main form's Activate event is fired subsequently followed by its Deactivate event. As a result, no matter where I click on the form, the application will activate for a split-second then immediately deactivate itself, thereby causing me to be unable to interact with any other GUI controls on the form. I thought maybe another thread is trying to interact with the deleted tab object, but the tab is created and destroyed on the same main gui thread. Does anyone have any insight that may point me in at least a new direction? Stepping through the debugger to the point in code where the tab is removed does not cause any exception to get thrown, so at first glance there doesn't appear to be any coding issues going on (although I would not be surprised that is actually the case!).
I was able to make a program that can draw on a form but if I draw very fast, the lines are cut. Check image below :
Another is I want to make my form be able to load a power point presentation. Is it possible? Also, I was wondering if it is possible to save the form as image file like what we do in screenshot?
I have a vb.net form which has a button in it. The button will call A.exe (it's a vb.net exe) using the command Shell("A.exe ", AppWinStyle.NormalFocus).
How can I make sure that everytime I press on the button, A.exe will only open once, and does not open a new form each time?
i would like to be able to make my form title to be something like (document title) - (name of program). The document title is the title of rtb document. how would i do this? i sorta have start.
I have a table inside my database, and i wish to insert/update/delete entries in a FormView Manner (I mean no datagrid) but a set of textbox/combobox/listbox/checkbox for one record. Before modifying/adding data i have to perform some extra checks to enter correct values to my database. How will i be best off doing it? I am currently using a datatableadapter to perform datatableadpter.insert, and also datatableadpater.update. How can i make use of datasets here and what is the best way for it?
I have a form in vb.net with a checkbox and I want it to stay in top of other windows if the user checks the checkbox and not to stay in top of other windows when the checkbox is not checked
I am just wondering on how can i make a list of recent file opened on my program in vb.net. The recent files filenames must be in a linklabel in a form and in the menustrip.
i am trying to make a program that can get information form a magnetic card reader to fill in a text box like an id and/or password. or make a new account. i am using a MagTek SureSwipe Card Reader 21040140?
Is it possible to make a program with visual basic 2010 that does not use the actual form but instead only uses other components (e.g. Message Box) to form a complete program?
I want to make a pretty easy program which repeat some easy things for me
STEP 1: on the first picture I want it will wrote a URL in the form + example [url].....
STEP2: thenI want then the program press on the link Get video
STEP3: and after that will the program "Right click here to download the video"and copy link location
STEP4: finally I want the program will paste paste URL into a new form? is this hard to made?
STEP5: if its possible I want also have a button example name "generate" which add a number of the URL from [url]...10000 to [url]....10001 and the repeat the things and paste into the form>is this hard to wrote a program which made this steps?
[code]How i can make The Program to find Numbers On Form and Do That without making So Many "Same" Codes?Its Pretty Annoying To Make Big Program nad only Copying and Pasting Text.
How do I Close a Form and then open a new one straight away? Im trying to make a Login for a Program, but I want the Login Box to open first, then disappear when the credentials are correct and a new Form to load.
Im make a portable program which has a form with a few different pictures like a photo gallery.when you hover the mouse over a picture it will appear enlarged in a floating box infront of the form. Then when the the mouse is taken away from this floating box the box will disapear and leave you with the picture gallery again?
