I have a login screen (frmLoginScreen) which links to a main menu (frmMainMenu) then to another form (frmUserDetails). Their are two possible usernames. The first one the user logs in as Admin and the password is 4321, then the second one is Guest and no password. This is the code I have so far:
Dim G As New frmUserDetails
If txtUsername.Text = "Guest" Then
G.btnDelete.Enabled = False
End If
There are no errors.
How to know that if the current user is an administrator or normal user or guest?
And how to make the exe can just only run in administrator?
I have tried to set the .manifest to "<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />", but no use. Although I am not logged in as admin, I can still run the exe.
When user retrieve voucher from database to edit on it and this voucher opened by another user .i need this voucher to be read only by disable delete button.
View 1 RepliesI crated a VB.NET program to write some data to registry. Its working proprely the user loged on Administrator user. But its not working when loged on guest user. Its shows error like
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View 2 RepliesIs there a way to prevent the Enter key from being interpreted as a button click.
I am trapping key strokes at the form level but if a button has the focus and the ENTER key is pressed I cannot trap the enter because the button consumes it as a button click event. I am also unable to trap the enter key in any of the button's key events.
I am interfacing with magtripe swipe and barcode readers that send their information as keystrokes with a CRLF at the end. I have a work around by chaning the focus to a textbox anytime keystrokes are detected but I am hoping for better control.
Is there a way to disable the buttons ability to do this?
i have uploaded 3 pics shows 3 diff forms.
1. BaseForm.( Includes 2 button, Buttons Text "Form1" and "Form2")
2. Form1. (Just inherited BaseForm)
3. Form2. (Just inherited BaseForm)
If the Button Form1 clicked then it shows Form1 disable Form1 button. and Hide BaseForm. same action for Button Form1.
When I click the Right Top Cross button then the Background BaseForm Still running. I want to close all form If I click cross.
Is there an easy way to disable all form validation when the user clicks on the "X" icon to close an application or when the user clicks on a button in the application that closes the application?[url]...
View 1 RepliesHow would I enable/disable a button if listbox become populated?
View 1 RepliesI am creating a little form that shows files (on my computer) in a listbox and well i am wanting to be able to click on one of these files in the listbox and hit the delete button and delete it off the listbox and off my computer how can i do this?
View 3 RepliesI want to allow the user to enable or disable a textbox by clicking either a button (enable) or the reverse. (disable) if the user clicks the enable button the textbox should receive the focus.
View 4 Repliesto disable right click and to disable the start button and task bar?
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View 12 RepliesI have a coding to let user select 2 files to import:
[Code]...
But if user click cancel button at Browse2 button, the system will paste the value from Browse 1 to Browse 2 text box. How to do nothing if user click cancel button at OpenFileDialog?
I have a datagrid being filled by the data adapater connected to my database.I have a delete button on the form, i cant figure out how to delete the selected row on the datagrid when the delete button is clicked.
View 1 RepliesI'm creating a simple form that could capture keystrokes. How can i capture CTRL-ALT-DELETE key when pressed together so as not to go to the task manager, in short I want to disable any function when the three keys is pressed. I tried to use the keydown event , detecting the three keys when pressed then set e.handled = true, but still it wont work
View 2 RepliesThis is a simple question, I am VB beginner. I was just wondering how I can disable the Delete Key on a form. Its simple question. I just want it completely disabled, preferably when the form is loaded.
View 4 Replieshow would you stop someone using the alt key, like alt+F4, alt+ctrl+delete OR alt+tab
View 11 RepliesI created a Security Log On that starts when i turn the computer On.Like the Windows Log On.
I managed to disable alt+F4, alt+tab, window key, ctrl+esc, but i have only one problem disabling the task manager or the CTRl+Alt+Delete Button, is there a way or any codes to disable this? im using VB.net 2005.
if someone could help about my Guest Reservation SystemI not intending anyone to do it for me,just need some advice want to know what is better or what should I do to make the project better.
View 3 Repliessomeone give an idea or guide to do this: i have two forms. First form is used to ask from, to, departure time and how many people we want to book for. Second form is used to ask for each person that we book what is their name, age, title, phone number. i planned to use a loop to loop form 2 to ask for their info. However i woner how we can do this?? can a form be an array to loop??
View 1 Repliesi want to excute this command in a guest account
Shell("net user new2 /ADD")
This needs administrator privelages
What I have so far is a program that moves the mouse around my application. I used a bit a maths as well to make the movement smooth. Here's my code for anyone who is interested:
Code:
Public Sub MoveMouseCursor(ByVal DestinationX, ByVal DestinationY)
Dim DifferenceX As Integer = MousePosition.X - DestinationX
Dim DifferenceY As Integer = MousePosition.Y - DestinationY
[Code].....
Now with my problem. When the program is running, the last thing I want is for the user to be moving the mouse because the program would get disrupted. How can I enable and disable the use of the mouse for the users benefits really because if they even knock the mouse slightly it could cause them a few difficulties. Anyway, I am hardly restricting them from using their computer because there is only one mouse. If they want my program to run, then they will have to except the fact that they can't do something else in the mean time. Also, after the program has finished running, I will need to enable the mouse again.
I have a button called "btnContinue". then, i have a textbox beside it for the user to enter a name. If the user has not entered anything, i want the button to be disabled from being clicked. But once the user entered a character into the textbox, the btnContinue will be enabled for clicking.
View 8 RepliesI have developed a Windows application using C# 4 and SQL Server 2008,
My application works very well.This application is using by six users at the same time.
I want that, whoever click button first from these six users, the button on other 5 user's PC must be disable till the user finishes adding data.. then it must be enabled...
something..
btn.disable = true;
data saved
btn.disable = false;
so, it cant be duplicated..
How do i disable user from goto desktop and when they press Control+Alt+Del it must prompt with admin username/Password.Is it possible to do....i have created a login page but i have no idea on how to make it prompt when user press Control+Alt+Del
View 3 RepliesIn visual basic how can I make the user's cursor not visible and the keyboard input not "enabled"?
View 1 RepliesI want that my application will have a splash screen - thats easy. The problem is that I want to give the user the ability to disable the splash screen if he wants. If I set this in the application splash screen settings then there is a splash screen,but there is no way the user can disable it. If I do it without a real splash screen - with a timer that closes the form and opens the real main window - the application closes itself because of the setting "Shutdown application: When startup form closes".I just can't choose the second setting (when last window closes).
View 3 RepliesI have a vb.net based windows application, where when "GO" button is clicked a bunch of data is loaded into DB. So in my application as soon as "GO" button is clicked I want to just disable it and would like to enable it back when the uploading has completed.Now in my specific method for btnGo_Click() I have:
btnGo.Enabled = False
as first line and
btnGo.Enabled = True
[code]....
How can i disable a button after i click it and shows another form, and enable it after i close the form that was opened.
View 3 Replies