I'm making a Library type app which needs to scan the whole computer when it is run for the first time. Not again ever. How can I accomplish it?I'll be using SQL database to store data. So, I can easily make a table there and store a flag and check it on first run, but is there any other way? Any native support for this in VB.NET?
View 5 RepliesSearching about kernel32.dll and battery functions in it, I came across some interesting
Public BatteryLifeTime As System.UInt32
The full declaration is:
Private Declare Auto Function GetSystemPowerStatus Lib "kernel32.dll" ( _
ByRef lpSystemPowerStatus As SYSTEM_POWER_STATUS) _
As Integer
Private Structure SYSTEM_POWER_STATUS
Public BatteryLifeTime As System.UInt32
What I don't understand is, what measurement do the "BatteryLifeTime As System.UInt32" is in? I mean, is the Battery life Time in seconds or hours.. Or something else, so how can I convert it to something I can use..
IM not looking for clink once. Do to its not customizable. What im looking for is something like App Life but that allows custom forms to be used. Or even a tutorial on how to run an update the program. Such as a patch if you will. Does any one know a free program that allows this?
View 3 RepliesI am indifferent if you are a VB.NET or C# or other .NET developer. I have a FACTORY class like the following:
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i want to which way is better when concentration is on processing speed. i want to call a method that compute some data that method is on another form in my windows form application then what you prefer is better way 1) to call that method in another form and use returned value or create similar method in form where it is required.i want to make it's processing fast.
View 3 RepliesI'm using Process.Start method to launch another application from my application. Until today, there was no problem. But I have tested my application in a different OS, Windows XP (SP3), and my application didn't work right on that. I'm also using arguments to run that application. I guess for some reason my application couldn't send arguments to other application correctly under Windows XP. Maybe it is related to my code. But you should know, it works great on Windows 7.
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I do have my program running in a network. I have set one main computer as server and installed database system too. My other clients create transaction and saves it to database. Now I need to add date and time of server too in that record
View 1 RepliesI want to calculate the time taken by a method to execute.[code]...
View 11 RepliesI'm trying to complete a time program for a class that I am currently taking in which it's supposed to utilize a Tick Method. Essentially, the Tick should be incrementing the time by one second. The problem is that I don't know where to place it. The book I have doesn't go much into this, just the code. I have also placed the timer in the Designer, set enable to True and set the interval to 1000 milliseconds. This is the code I found for the Tick Method
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In my VB.Net project with framework 2.0, i need to get the current buttery life of laptop or notebook by coding.
It is possible to get the current battery status information?
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Dim x, y As Integer
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i have used vb to create some simple forms but my latest project has got me beat. The company i work for has just upgraded to Terminal Server 2008 and some of our old programs need administrators rights to open but i do not want to give all 200 users the administrators password, So i wanted to know is there anyway i can create a exe with vb.net that will run a .lnk file (located on all users desktops) as administrator.
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I have two "Game of Life" programs. One uses a list of points that represent the live cells, and the other uses a fixed-size grid. The one using the list of points can zoom in and out, is much more elegant in coding, and has an unlimited size grid. However, it needs to search for points in the list, and the more points in the list, the more time it takes
View 5 RepliesWhat events are hit before form_load in a winforms app? Somewhere before the form_load a file called .ini is created and I can't figure out where it's being created. It's just .ini with no name before the extension.
View 2 RepliesI'm trying to use this overload
Split(ParamArray separator() As Char, count As Integer) As String()
However, when I use this
Dim tokens() As String = e.Node.Text.Split(New Char() {":"c}, 2)
I'm getting the ArgumentException (Illegal enum value: 2)
I tried using named arguments with no effect:
Dim tokens() As String = e.Node.Text.Split(New Char() {":"c}, count:=2)
Using this overload didn't weed out the error either:
Dim tokens() As String = e.Node.Text.Split(New Char() {":"c}, count:=2, options:=StringSplitOptions.None)
The error is occuring only at run-time. Intellisense swallows it without problem.
i want to add BindingNavigator at run time to which i made a public method in module.vb, and want to run buttons withEvnets on it
View 1 RepliesI am using an external DLL (pdfsharp) to open (then manipulate) lots of PDF files. I use: Dim inputDocument = Pdf.IO.PdfReader.Open(PDFPath, IO.PdfDocumentOpenMode.ReadOnly) Problem is - it seems to hang on certain, rare files. I don't seem to get any timeout - it just hangs for hours on this line. We read thousands of files with this code, always on tiny files, so I was thinking that a quick workaround might be to somehow timeout if the this method takes more than a second or two. But I don't see a simple way to do this. I am hoping to avoid spinning up a worker thread.
View 2 RepliesMay i know is there any methods apart from the method that i have to detect drag and drop buttons when u create them at run time?the code that i have is
For Each ctl As Control In PictureBox1.Controls
If TypeOf ctl Is BlinkButton Then
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I have the below code. What happens if the Upload method takes more than one minute for completion? Does the timer kick off another call to the Upload method immediately after one minute is over or Does it wait until the method finishes executing? I am implementing this as a windows service.
Protected Overrides Sub OnStart(ByVal args() As String)
Dim tmr As Timer = New Timer(New TimerCallback(AddressOf Upload), Nothing, 1000, 60000)
While Not tmr Is Nothing
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EDIT:I edited the question to show the code I have come up with. It does not work... No "test" caption becomes visible on the main form.
Private _dispatcher As Dispatcher
Delegate Sub SetLabelText(caption As String)
Private _setLabelText As SetLabelText
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I'm in the middle of porting a VB6 product to VB .NET and .NET Framework 3.5, using Visual Studio 2008. Backward compatibility with customer VB6 legacy code is a requirement.Our VB6 product uses the COM ADODB.Recordset objects extensively both internally and in our API. They port directly to VB.NET if I add an adodb interop reference to my VS 2008 project. My question is how long will Microsoft continue to support ADODB.Recordsets in their languages and operating systems? 2018?I'm trying to make a design decision. Since backward compatibility with VB6 is a requirement, I would prefer to leave them in the .NET code. However, if support will be dropped soon in the near future, then I will use ADO.NET datasets instead, and convert between ADODB.Recordsets and datasets until support is dropped.
View 1 RepliesI've googled and binged my browser to an inch of it's life, but i'm still no nearer to an answer for this, so I'd be grateful for some advice. Mainly with the syntax, but knowing me the whole concept is wrong!I have a textbox. When user enters a string and presses enter, I want the following to happen.
I'm struggling with 3 and 4 and 7
1. Check the string is not more than 13 characters, if so trim the last characters off to make 13
2. Find if the first character of the string is a digit or a letter
3. Convert the string into an array of INT
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I'm trying to get the battery life meter in percent, so it will be shown on a progressbar when you're on a portable computer.
View 2 RepliesTrying to find a code to display ' BatteryLifePercent' by itself on the screen of a gps unit running Windows CE Core 5.0. I have absolutely no experience in programming. Just piecing together things I find and slowly learning to make a working program. So if this is possible, could someone post a code for it? Ideally I'd want just the percentage showing on the main page with ability to size font and position somewhere on the screen. [Code]
View 4 RepliesI am using asp.net 4, .net 4 and masterpages. I added in the following code to my child page
Private Sub FoodChain_Init(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Init
MyBase.OnInit(e)
PopulateDropdowns()
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We have a serial port which is connected to hundreds of physical devices on the same wire. We have protocols like Modbus and Hart to handle the request and response between the application and devices. The question is related to managing the reference count of the channel. When no device is using the channel, the channel should be closed.
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whats the page life cycle in Ajax call in Asp.net?
View 2 RepliesLet say I have a function inside a class which require 4 parameter (table name,field name,field value, return field) When I use this function my form, such as
myclass.Search("customers", <-- after pressing the "," a popup list will be displayed that contain all the fields in "customers" table.
Run-time error '5200' Method 'endMessage' of object 'ISoapConnector' failed
Dim Serializer As SoapSerializer
Dim Connector As SoapConnector
Dim Reader As SoapReader
Set Connector = New HttpConnector
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This is my first post on this forum, so please excuse me if I'm posting wrong. Anyway, I've been having an issue that I've never seen before and is driving me nut, I have a windows form on which I have placed many textboxes that display information from a MS SQL database. The user can then change these values and hit a "save" button which writes the changes to the database. I also have certain textboxes that with the "on leave" event (after a user enters a possible new value) trigger a method that recalculates some of the other fields based on the new information. Hopefully that all makes sense.
So the problem is, when I run through this "recalc" method the first time around, it doesn't update those textboxes that it's supposed to. However, when I put a breakpoint in and debug through it, the debugger shows it putting in the correct values into the textboxes. It's just as soon as the method is done, it puts them back to blank, or whatever they were before
'Rebind stuff here
lblCabinets.Text = curMfg.ToString("c")
txtCabinets.Text = curMfg.ToString("c")
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