How To Lock Form
Jan 23, 2009
Basically,I had a button in my form1,when I click it,then form2 will be display...Now I would like to lock form2 until a button in form2 had been clicked,then only I can do anything in other forms...I means form2 must be closed before I can remain to form1.
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Jul 24, 2009
I have my main form then a progress bar form that is shown when the program is running. I simply want to keep the progress bar form on top of the other form and make the other form so it can't be changed.
I've tried form2.showdialog, but that stops the code in the main form from running so it's no good.
form2.show(me) just keeps form2 ontop of form1
me.topmost in form2 does the same as the last thing
setting the form1.enabled = false isn't something I want to do since you can't even move the form when it's like that
So really I'm at a complete loss here
also how can I get the progress to start in the center of form1? There is a setting in the form properties but is doesn't seem to work.
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Jun 21, 2008
after i set the windows form lock to yes and press f5 fordebug mode , i can still drag the form around the screen
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Dec 15, 2009
how to lock or suspend the form when i call another form and until that is finished this form should be locked.example: i got frmAddEditClient form and frmViewClients as another form, now i got list of clients in frmViewClients and i will select a client i would like to edit the client profile ( for which fuction is defined in frmAddEditClients) so on click of btnEdit in frmViewClients form i place code to [code]now i got everything working fine but i shud make the frmViewClient form to lock so that untill edit operation is done user should not change anything i.e is not selecting other ClientID. in the frmViewClient form.Once edit is done frmViewClient is unlocked and then clientId is refreshed.
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Apr 5, 2012
how to lock keyboard in form have controls?
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Dec 28, 2010
recently I've been searching for a way to disable the screen background and give focus only to my loaded form
for example
my form loads a "enter password" box, and I would like the screen to lock not sure how to describe actually, but I can show you a example of how UAC does it
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Mar 25, 2009
My software has a main form with two panels. One panel (pnlToolbar) has the navigation controls. The second panel (pnlSubForm) holds the sub-form as selected by the user from the navigation controls. There is a sub-sub-form which is called using the following code
[Code]....
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Oct 22, 2010
i have tried sendkeys but it locks my computer
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Oct 12, 2010
I want to lock my form to be full screen, and not allow the user to move it. For the form, I set
[Code]...
The form is full screen, but I can shift the location. I do have a dual screen system. The application goes full screen on the left most screen. This does this inside the development environment and using the EXE. What am I missing? I thought Locked is suppose to prevent the form from moving.
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Sep 29, 2005
How can I toggle capslock? Visual basic 2005. Windows XP. I'd like to capslock on when the form load. This code doesn't work:
Public Class Form1
Private Declare Sub keybd_event Lib "user32" (ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo As Long)
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Call keybd_event(System.Windows.Forms.Keys.CapsLock, &H14, 1, 0)
Call keybd_event(System.Windows.Forms.Keys.CapsLock, &H14, 3, 0)
End Sub
End ClassThe error is: PinvokeStackImbalance was detected.
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Jun 8, 2010
I have a Dialog which I'm calling via Loading.Show()Can I lock the position and location to the parent form? In such a way so if the parent is minimised or moved, the child will stay centred to the parent?
I was using ShowDialog() but this obviously stops the parent from being accessible. This is being used to display a progress gif. (Child is 50% opacity)
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Feb 18, 2011
1. I have a program and I want it, when it's lunched it comes at the center (I done that already) now what I want is to lock it at the center and could not be move all around the screen.
2. The other thing is that in my program I have a Webbrowser and the images are not showing at all. To make the picture visible I have to right click the image and click SHOW IMAGE. Till yesterday the image was showing.
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Jan 25, 2009
How do you lock the size of a form so the user can't resize it?
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May 28, 2009
i try to make an application that can communicate with the door magnetic device. So, when the visitor come to my house, i can control the door OPEN or LOCK using my PC. I;ve created a window form using VB.NET with button "OPEN" and "LOCK". Can anyone provide me some advise how to do this, or with some source code together found in other website?
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Mar 10, 2009
Can i automatically turn on or activate the CAPS Lock key when the form loads?
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May 27, 2009
Is there analogue of lock statement from c# in vb.net?
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Dec 15, 2011
VB.net how to lock a computer screen using a form
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Aug 23, 2010
How do I lock a row in MySQL and then only allow the app that locked it to change the values of that row?
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Dec 28, 2009
Wrote this code:
Function ReadRegistry(ByVal regType As String, ByVal RegPath As String, ByVal KeyName As String)
Dim regKey As RegistryKey
[Code].....
What I want to do is raise an error if I get passed a value that isn't listed in the case statement.. or it there a way to define it better?
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Sep 25, 2009
I have a form and its filled from a VIEW of two tables on SQL server. When its opened i dont want other users opening that customers details from either table.I know SQL itself prevents writes if its opened but i want to stop people opening the record in the first place.[code]...
I then tried writing these values to the db on the form loading but it doesent work - it just sends back NULLs. I tried the same code in the on load event into a button and it works fine there. So im thinking i should do this as a Trigger on SQL itself, but im unsure how i could get the users computername or Windows Login name, or even username from the front end im building.
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Dec 6, 2006
I am using XML files to store some iformation that are to be processed. I use this code to interact with the XML file:
Dim xmlDoc As New XmlDocumentxmlDoc.Load("theXMLFile")
Do XML stuff such as add elements...
xmlDoc.DocumentElement.AppendChild(oAlarm)xmlDoc.Save("theXMLFile")
What I want to do is to lock the file so that no other process can use the file. If a process wants to use the file, I also want it to wait and try again until file is available.
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Aug 7, 2007
how to lock PC using VB.net? So that any user cannot do anything on my PC?
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Oct 14, 2010
But not my application.A app i use refuses to be brought forward, so wondered if there was a way for a vb app to run in the bg that can force a specified application to stay on top, & even maybe set its screen position and lock it there???
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Mar 20, 2012
In my project i am using begin transaction commit or rollback changes. but this causes lock to the tables in that particular functionality.
So if the any other user does any other functionality those locked table are not available until the transaction is completed. I want to know if there is any alternative to transaction which insures data security but the tables are not locked out.
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Jun 21, 2011
Dim bmi As New BitmapImage(New Uri(fiInfo.FullName, UriKind.Absolute))
bmi.CacheOption = BitmapCacheOption.OnLoad
this does not Use OnLoad
[code].....
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Mar 29, 2011
how would i bypass the loader lock. I know there is a way to disable it but im not sure how
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May 15, 2010
This is a part of my project, my project basically uses a motion sensor to detect any intrusion. So one of the modules is to lock the PC on detection of an intruder. Is there a way to lock the PC using Visual Basic?(Because most of the other modules have been programmed in Visual Basic.) I am basically looking for source code that can implement something similar to "Windows button + L".
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Feb 23, 2012
I'm working on a small program to activate winlogon,and to automatically log out of my account, but I'm unsure how to implement this in code.
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Feb 3, 2011
I'm trying to detect the state of num lock but haven't had any luck. using a windows 7 x64 machine.
Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As System.Windows.Forms.Keys) As Short
'num lock check timer
[Code]....
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Sep 2, 2009
How do I get the current state of Num Lock in VB.NET?
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