Detecting Change In Database / Displaying Word 'change' On Screen In Realtime For Any Client Connected
Nov 30, 2010
Can someone please help me create a very very simplistic sample page as the chat page included is too coomplete. something as simple as detecting a change in the database and displaying the word "change" on screen in realtime for any client connected.and I tried creating a global.asax file into which I added in the line mentioned in the link above, but it does not seem to like the word "Setup" in the line [code]
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Apr 11, 2011
I got a properties class that I send to a PropertyGrid. I want to change the [readonly] attribute of some properties in realtime. Below is an example of such a property in vb.net...
<CategoryAttribute("Graph Limits"), _
Browsable(True), _
[ReadOnly](False), _
BindableAttribute(False), _
[code]....
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Nov 13, 2011
I want to be able to change my network on the press of a button to another favorite network followed by the launch of a LAN based game and closing a set of pre-defined internet applications that will interrupt gameplay with "Lost connection" popups Basically I have two networks, on Internet, one only LAN (Both Wireless)I want to be able to switch networks and launch my game. I know the code for launching my game, but my question is....How do I switch network connections using my program?
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Dec 19, 2009
I want to be able to isolate an area of my desktop (similar to a screen capture snip) and evaluate if it is changing. In this particalr case it is an appliacation I have (not mine) that flashes an icon upon completion
What I want to do is make a small app that will detect change when I am away and perhaps perform a specific action (the action is not relevant really - i can take care of that) Again,this is NOT hugely important, but if someone has an idea or has seen an app that does this, it would be useful for me...
I put this in the VB.NET forum because I write 75% of my code in VB.... so I chose this instead of a general area !!
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Jun 15, 2011
i need to detect change in multiple control, and fire a sub procedure when any of the mention control value changes in a form.
example of the controls include
checkbox
textbox
NumericUpDown
the problem here is that i have upto 50 controls in all on the form, how do i do this?
[URL]
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Oct 17, 2010
I've written the following code. It works fine for creating, deleting and renaming files. However when I set a file to read only, or modify the file (i.e open it in notepad and change the contents) nothing happens (it doesn't hit the change breakpoint)
I have the following
VB.NET
Private fsw As FileSystemWatcher
Public Sub WatchFiles(ByVal tblMappings As DataSet)
[code]....
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Dec 7, 2011
I've been attempting to determine if a notebook's lid has been closed when the power setting is set to "Do Nothing."I was able to get this to work by trapping the WM_POWERBROADCAST message, but it would only work when the computer when to sleep. I've tested this on many different notebooks and the results vary. Even when changing the power settings correctly, the results were fairly inconsistent.So I posted this question in General Developer and penegate offered a possible solution.[code] I'm thinking that maybe the message I'm trapping isn't correct, but I'm not 100% sure. When I Google that message, nothing comes up. Two links appear. The one on VBF and some German site. Nothing's on MSDN.
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Dec 2, 2009
whats wrong with my code?if i change the item from the combo box..the textbox not change or has an error?
conn = New MySqlConnection()
conn.ConnectionString = "server=localhost; user id=root; password=12345; database=gigzta; allow zero datetime=no"
strsql = "SELECT accNo FROM accinfo WHERE (completename LIKE '%" & ComboBox2.Text & "%')"[code].....
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May 1, 2010
I've been using 'GetScrollInfo' to find the position of the scrollbar on a ListView and I can detect when it hits the bottom of the list. Is there anyway I can raise an event when the scrollbar changes? At the moment I have it working by using a timer but I would rather if possible create an event to fire my routine.
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Nov 18, 2010
For whatever odd reason, we have a legacy data recorder device that runs at 9600 baud. Except when it needs to transfer its recorded data to a PC, in which case it switches to 57600 baud.
The old VB6 code worked, although it had its own set of problems of course.
The routine is this: Do several COMMAND/RESPONSE routines to populate a list of available records, listed by timestamp, at 9600 baud. Once a timestamp or several are selected, display a file save dialog. At the moment that dialog is closed, send a command to the device to tell it "hey we're going to warp", sleep for 100ms, then set the baud rate property of the persistent COM1 connection to 57600, before beginning to process XMODEM data and do the progress bar dance.
The problem I'm having is that it doesn't appear that the data received is ever really kosher as far as the byte marshaling is concerned. Which makes me wonder just how well SerialPort is at dynamically changing bauds on the fly. The VB6 version used MSComm.
I've even attempted to just use MSComm through the compatibility layer but "CTL_E is not supported" which makes it sound like it's incapable of doing XMODEM. (?)
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Aug 19, 2010
How can I check through my application if computer is connected with internet or not (at the moment)I need a message if net is connected.
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Feb 4, 2012
I'm using Visual Studio 2010 / VB / dot net 4.0, and I have a drop-down menu in my left column that switches resource languages for the end user. It reads like this:
--------English ------- <<- Engish is always the default top language option
French |
Spanish |
[code].....
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Feb 9, 2009
I'm developing an application and when the application is open, I need to handle the mailto protocol. I'm thinking the best way is have the app change the HKEY_CLASSES_ROOTmailtoshellopencommand registry key when it opens and change it back when it closes.
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Apr 10, 2010
I'm using the PanelManager control, but I can't figure out how to change the panels via a client event.I have a Link label and when clicked, i want it to the panel manager to change to another panel.
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Aug 27, 2009
how would I change or even scroll the screen?
ex.You click a button and it takes you to a whole other form(different buttons, pics, etc.)
ex for scrolling. Adventure game-You walk at the top of the screen and your guy goes up. Maybe it would be easier to have the world move around my guy but 2 playwer woudn't work well with that.
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Apr 7, 2011
I want that when a form appears, your screen colour changes to red, blue and black, how to do that in VB.net? I'm using Visual Studio 2005. Explain me as I dont; know.
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Oct 30, 2009
How to Change Screen Resolution in VB.net?
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Dec 21, 2009
I was wondering how i could change the screen resolution... however I have a few additional requirements..The screen number needs to be passed in (for people with multiple screens)The resolution should be reverted when the application is closed - EVEN IF IT CRASHES - or is killed with "end process tree" (ie no code required to execute to change it back) - like games do Needs to not stuff up desktop icon locations when changing to a smaller resolution
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Jan 21, 2012
and advise how I can change this connection string at run time. This is going to be on Client's computer and my application will need to change the name of computer after user enters it.
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Jun 14, 2009
But how can i change
[URL]
"this"
i know i have to change this fragment code :
"[url="http://www.vbforums.com/profile.php?do=editsignature"]http://www.vbforums.com/profile.php?do=editsignature[/URL/]"
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Jan 13, 2010
Change everything on screen thats black to white and vice versa??
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Dec 29, 2009
How can I change screen orientation on (XP) laptop by VB.NET Code?
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Nov 8, 2010
I need to change screen resolutions using my application.
How to:
1) Read current resolution
2) Changing it using my application and then returning to current on exit.
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Sep 22, 2009
A simple example is: lets say that im trying to make a program that allows you to move the mouse only with the arrows (left/right/up/down) how can i change the position of the mouse on the screen programmatically? If i wanted when you press a button the mouse to change position to X=0,Y=0 of the hole screen/desktop not the window of the form how can i do it? [Code]
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Jan 2, 2010
is there a way to change the user's screen dimensions. like change to 600x800 resolution
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Jul 22, 2009
How to create a program that detects the screen resolution and change it to 1280x800 or 1024x768? What are the computer requirements to support each of these resolutions. (I don't want for the program to request the user as programs do this especially in Windows Vista, because my program will be created for Windows Vista).
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Mar 10, 2010
for example:
im viewing a web page, and it changed to blue...(bg color was white)
is it possible for vb to monitor this?
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May 4, 2010
How to show the bottom part of the screen in the click of a button? On my site I have a picture and when the user clicks on this some more information is shown at the bottom of the page, althought i do have text at the top informing the user to scroll down once the picture is clicked it would be nice to automatically focus the page on the bottom half.
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Oct 5, 2007
How to change the system screen resolution in VB 2005 or 2008? As it something to do with this:
Code Block
My.Computer.Screen.Bounds.Width
System.Drawing.Rectangle
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Jun 3, 2012
I've got a bunch if labels that are changed as a user inputs data into a form of mine. The Labels are changes with js on the client side. I then after all the submission are in put use a vb script to pull the string values from these labels. The problem is the vb net part is not reading the new values of these labels. Anyway I can get it to read the new values? I have over 40 labels.
[Code]...
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