FileSystemWatcher and syncing database with changes

I’m creating an application (just started) with a front end (GUI) and backend (database). The database will be populated with file related data populated from the FileSystemWatcher. I want to discuss the database design and how it relates to the files and their paths and how information is obtained via FileSystemWatcher. Since folders usually contain multiple files, I thought it would be a good idea to have a file table and a folder table. Since file names (without path) may not be unique, I thought using an integer as a primary key would work well especially if the file ge

Default Event in VB NET

Hi, I have a UserControl with a Button. When I click in this button, The default event is the "Load". I'd Like to Change this default event (Load) to Click. Thanks...

How Do I Read Settings from the Config File?

I have a config file which contains settings for several projects. How do I read the settings for one project from within another project's code? I'm using Visual Studio 2005 and NET 2.0. -TC

Add class in datacontext in the datacontext designer

Hi, I have a Sql Server DB with two tables, customer and order, and from the Visual Studio2008 do a DataContext of this bbdd. If from the code when I have a client, to get their orders do something similar to "myCustomer.Orders" and with this I will return the customer orders in question. So far so perfect.. But now add in the designer's DataContext, otherwise, it is not in the DB, a class called Enterprise, which has a field that is idCustomer, and I make this association in the DataContext. Why with the code can not do myCustomer.Enterprises? Thanks

How to Rollback transaction

I have created a form from the data sources that is generated by a wizard to produce a dataset. Now I just simply drag tables from this dataset to my winforms. I can have two tables in winform with a parent/child form. The binding navigator will create a code below to save the data back to the database: Me.Validate() Me.InvoiceBindingSource.EndEdit() Me.TableAdapterManager.UpdateAll(Me.InvoiceDataSet) InvoiceDataSet includes two tables called Invoice and InvoiceDetails. Beside from this code I also added a code below to update ItemsDetai

How to freeze momentarily screen output, please ?

How to freeze momentarily screen output, please ? Thanks for response

VB 2010: DIM...

Dim Hundred as Integer Hundred = 100 won't work. What's wrong?? (I'm a vb6 programmer.) Eric

Where is "imports Win32"?

Dumb question I know, but after 2 hours googling I give up. What is the easiest/recommended way to access the Win32 API from VB Studio Express? I assumed it would be a simple matter of Imports Win32, or something similar and the whole API would be exposed. Surely I don't have to Declare every API function I call individually? I just want to do things like FindWindow, GetForegroundWindow and SendMessage. There are also a gazillion constants like WM_CHAR et al, that I would have thought were predefined somewhere.

Curious behavior from Enviroment.SpecialFolder

Hello Everyone, I've raised a similar question in the group before but am still puzzled by this behavior and I'd like to understand what is going on here. If anyone would be so kind as to take a shot at explaining this, I'd be most greatful. I'm writing an application for Windows Mobile that will store its configuration file in the \ApplicationData folder of the device. Let's name the configuration file 'myApp.conf'. At first, I thought this code would work: Dim oFile as New StreamReader(System.Enviroment.GetFolderPath(Enviroment.GetSpecialFolder.ApplicationData) & "\myA

More multi threading advice needed!

Hi, Need more help with this. I have an array of objects (Computer class). The class has a method that takes a while to run and I want it to run in it's own thread. So I have code like this: Private ProcessResultHandler As AsyncCallback = AddressOf ProcessResults For i = 0 To ComputerArray.GetUpperBound(0) sfh = AddressOf ComputerArray(i).UninstallAgent sfh.BeginInvoke(ProcessResultHandler, Nothing) Next i Public Sub ProcessResults(ByVal ar as IAsyncResult) sfh.EndInvoke(ar) End Sub Now, I need to know from within ProcessResults wh

Design question

So I'm developing a new application for Windows Mobile (WindowsPhone) that will use a REST API I'm developing to interact with a backend MySQL server. While I need to make access secure (it's a medical app), I don't want the user to constantly have to hit the user table of the database every time they want to do an API call as that table could have thousands of rows and could slow down access a bit. So my thought is to use sessionID's of sorts. When the user does the first call to the API (which should be a login call since they need to login to the app), the mobile app will a

WebBrowser print to specified printer

Hi all. I'd like to print the document from WebBrowser to the specified printer, but silently, t.i., not by calling ShowPrintDialog. The printer could be the default system printer, but not in always. Accordingly, using WebBrowser.Print() is not the solution. I found one solution: change the system default printer to desired one, do the print job and then change back the default printer to previous. Tha problem is, that the user, who uses my app, may not have enough rights to make some system changes. Is there another method how to do it silently? Is there any other control

Force click on an object.

How can I force click on an object (such as button, etc. ) ? Thanks :)

FileSystemWatcher won't fire for directory events

I trying to be notified when a directory is created, deleted, renamed or moved. What am I doing wrong? moFolderSysWatch = New FileSystemWatcher(m_WatchDirectory, "") moFolderSysWatch.IncludeSubdirectories = True moFolderSysWatch.NotifyFilter = NotifyFilters.DirectoryName moFolderSysWatch.EnableRaisingEvents = True

Border style of panel.

Hello. I want to change the behavior of the border of panel. There is only three choices : none, fixedSingle, and Fixed3D I want to change the border style to inset, outset, etc. and also the border width. Is there any component that control only the border style, width etc. ? Thanks :)

write to a new file at new user defined directory

Hi all!! in my windows form there should be two textbox and one button. one textbox is for the name of new directory and the other one is for text file that should be placed in new directory with the name that user enter at previous textbox. after the button is clicked, program should create a directory with the name entered at the first textbox and create a text file with the name entered at the second textbox . can anybody advise me a tutorial or some codes to accomplish the task??? thanks in advance... Submitted via EggHeadCafe - Software Developer Portal of Choice Dr

Serialization problem

Hi, For my webapplication I have a structure with strings, booleans and datasets. I use it to store the information that the user has entered. The datasets contain data from a part where the user can add multiple rows of data. I want to move this data to a file so it can be read by a windows application. The webform is basicly a request form. I thought of serializing it because that is a nice way to transfer the data. When I serialize the data to a file, all the data from the strings, dates and booleans are in it, but from the datasets I only see the structure but not the

SendKeys and Keyboard Hook

I have an application that is hooking the keyboard and trapping the PAUSE/BREAK button to perform a function. I would like to activate that function from my VB .NET 3.5 app by simulating the keypress. However, using SendKeys("{BREAK}") doesn't activate it. The hooking app usually sits minimized in the system tray. I've even tried bringing it to the foreground before using SendKeys and still nothing. Is there a way to simulate a keystroke that will be trapped by a keyboard hook? *** Sent via Developersdex http://www.developersdex.com ***

Datacontext and reject partial changes

Hi, How to do this with a DataContext, I have a form where there is a DataContext, and allowed to make changes, since this form opens another form, and in this second form the user have changes, but on leaving the second form selects the option to cancel. How can I do to delete only the second form changes, and keep track of changes on the first form? Thanks

Method does not have the same signature as delegate

Dim wsThread As ThreadStart = New ThreadStart(AddressOf readFile.Read_File) Submitted via EggHeadCafe - Software Developer Portal of Choice Creating a WPF Custom Control http://www.eggheadcafe.com/tutorials/aspnet/32d63678-2798-465e-ad29-c0b45fb68b78/creating-a-wpf-custom-con.aspx

JPG Processing in .NET

I shrink pictures in .NET and the quality of the JPG is very low. Is there anything to do about that? Thank you, Samuel

Help with clickonce deployment over VPN

We have an office in a different location where two employees need to use my program. We are using Small Business Server 2003 R2 with ISA Server 2004 as our firewall, which is set up to receive VPN connections. I am using a self-made certificate for Exchange webmail. I currently publish to a folder on the server and all the office computers can install and receive updates from that location. I need the VPN clients to be able to install from the same location. Heck, I'd be happy if they installed from ANY location at this point! I've tried to FTP, I've tried to access a network

Another setup option

Hi I need a slightly better setup option than is included in vs 2008. My requirements are as below; - Well enough integration into vs IDE. - Some UI element to reduce learning curve (Wix is great but I find the scripting daunting). - Allows customisation of shortcut names and app target folder names based on some variables such as app version/build date etc. Any recommendations would be appreciated. Many Thanks Regards

Don't understand permissions

This is a multi-part message in MIME format. ------=_NextPart_000_0003_01CABAAC.CEAA9EF0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit I have a small app that makes a backup copy of a file in the folder where it is installed on startup (using System.IO.File.Copy). On some systems this doesn�t work, and the user gets a permission denied to the folder (or file?) in question. I have tried looking at the FileIOPermission class, but I think I�m thick as melasses, because I don�t understand how it works at all, and no matter what I do, I c

User Controls Gets bigger

Hi all, As I insert the customer User Controls on the for everything becomes bigger i.e. controls and the overall size but not the font Any suggestion why this would happen Thank you in advance, Samuel

Dynamically adding menu items and their OnClick events

How do I add items to a menu while simultanesously adding an OnClick event for each. I have an 2Xn array of text items (labels) and matching URLs.e.g. "Google", www.google.com "Yahoo", www.yahoo.com I want the first column to be the menu label and the second column is where the browser goes when the menu is clicked. OK, so the first part is easy. AdditionalToolStripMenu.DropDownItems.Add(strResearchLinksArray(i, 1)) How do I go to strResearchLinksArray(i, 0) when that item is clicked. I am vb.net 2005. -- Thanx & Regards, Anil Gupte

Windows Service

Hi all, I have SQL Server Agent and under it I've some jobs that runs with a definde schedule (they can run at the same time). SQL Server Agente doesn't belongs to SQL Server Express edition, so I'm lookig for a way to build a such schema with a .net windows service. Let's say I need 10 jobs: 1) it is better to have 10 windows services? 2) it is better to have 1 windows services with 10 threads? in the first case, I need to have 10 different project that installs 10 different services with 10 different name (it is correct?) in the secound case, how can I tell the service (fr

getting a hardware value from the PC.. like CPU etc.

Hi, Is it possible to get some sort of unique ID from a PC, such as a CPU serial number or motherboard serial number ? I want to just to a quick check to see if my application is on another PC. Thanks

Progress bar and system thread

Hy, I have in my application a function which reads from database and export data to txt files. Now i wantz to make progress bar who will, depends of number of record populate progress bar or status of my operation. Please, does anyone know how to do that? Regards

http status code woth webbrowser component

Hi guy.. i am a newbie in vb.net I am trying to get http status code (200,404 ecc) from webbrowser component.. but i dont know how! Please help me! please be easy Thank you. Nando

How Do I Share Data Files?

I need to deploy an application which shares data among all users of a computer. I thought I could do that by putting the data file in the Common Application Data folder. However, that doesn't work because Vista is using virtualization to make a unique copy of the file for each user, so it isn't being shared. How do I deploy an application with shared data? Is there a document anywhere that describes the best practices for folder usage in Vista? -TC

Button.PerformClick

Hi, Using VB2003.NET. I've got a TabControl with 3 tabs. On one tab is some status information and on the other two tabs, some data related to settings. I've got a timer and whenever it ticks, I see how long it has been since a certain automatic action has occured (trying to connect to a device across the network). When its been 20s since the last connection attempt was made, I click a button which does the connection attempt. The button is on the 2nd tab. The problem I have is that if I viewing the 2nd tab, then when I call "btnMyCutton.PerformClick()" it actually does

Class Inheritance Issue

Hi Group I think that what I would like to do is not possible. I would like to create a class with four possible sub classes which must inherit data from the master class. In the first class I would like to do some work which would then instantiate one of the four sub classes without calling New in the first class. The sub classes each has the potential for holding large amounts of data, there for I don't want to instantiate them if not necessary. When I do call the chosen sub class from the first class, I would like it to inherit some of the data that the first classes created.

Creating icons

Hi all, I have vb code below which convert image to icon but there are two problem with this. One when i try to save 16 x 16 size icons, it creates black bacground whith that icon. Two it saves 32 x 32 icon ok but in different colours from the original image colours. I'll be very greateful if any friend has sultion for this. Dim img As New Bitmap(PictureBox1.Image, 32, 32) Dim g As Graphics = Graphics.FromImage(img) g.InterpolationMode = Drawing2D.InterpolationMode.HighQualityBicubic g.DrawImage(img, 0, 0) Dim Hicon As IntPtr = img.GetHicon Dim newicon As Icon = System.Drawing

Deleting record from bindingsource

Hi I have a winform app with form control bound to a binding source TblClientsBindingSource. The binding source has a data table as its data source as per below code; dAdapter = New OleDbDataAdapter("SELECT * FROM tblClients WHERE ...", Conn) dAdapter.Fill(dTable) TblClientsBindingSource.DataSource = dTable My question is; how do I delete the record currently pointed to by the binding source from the backend database table tblClients? Thanks Regards

Feasibility of using visual basic express

Hi Is it possible to develop sql server db winform apps using visual basic express? Thanks Regards

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ANTIVIRUS FREE DOWNLOAD 8982

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Not having to wait for routine to finsh / run three events at the same time

I developed a simple app, it goes out to an access db and populates a list box and pings as server. Pretty much how can I do both events at the same time without haveing to wait for one to complete before moving on to the next one. It acts like an application monitor where I ping the servers every 15mins and see if they are up, they are totally seperate Public routines, sound simpel but it is not. I just want to ping all three severs and get the ping times. I have everything coded it is just the waiting that has me stuck! Thanks

Delete control?

I'm using VB in VS2003.NET. I have a TabControl with a couple of group boxes. I've added some buttons and labels to a group box, but now I want to delete the controls. Cannot! Why? I've tried pressing "Delete", right-clicking but Cut and Delete are disabled. I can't even delete the whole group box. What am I missing here??? Is this some strange setting locking down group boxes on a TabControl or mabe a bug in VS2003.NET? Thanks, Alain

(New Object).Method

Is there a simpler acceptable syntax for (New Class).Method than With New Class .Method End With In VB.NET you can use Call Call (New Class).Method but this syntax is not acceptable in VB6 (with or without the () at the end). FYI I am looking for VB6 and VB.NET answers, if they are different. (Using Call in VB.NET is "acceptable", I'm just wondering if there is an alternative syntax I haven't thought of.) BTW Note that if you define an "identity" function: Function Identity(ByVal C As Class) As Class Identity = C End Function (And in VB.NET you can use Ident

How do I process text file?

Hello all. I am using VB 2008 and need to process text fies. Looking at MSDN Lib I see that two methods are used to read a text file: Using StreamReader Dim fileReader As System.IO.StreamReader Using ReadAlltext Dim fileReader As String fileReader = My.Computer.FileSystem.ReadAllText("C:\test.txt") Is one preferred obver the other? Any considerations I should look into? Although the files that will be processed are text, I have seen a "bad" non ASCII character get into them. I validate for this condition, but given the fact that it is a non ASCII char, will either of the

VB Express 2008

Hi, I just re-installed VB Express 2008, in the hope that it will finally be working properly with Vista 64 and SQL Express2008. But now the only thing that work is the main interface, but I can not to anything with it since the damn thing does not work with SQL Express 2008 , and it does not let me do a thing What can I do to fix this BTW I downloaded the installation ISO file from MS a few days ago -- Thank You in Advance Merci a l'avance Martin

Use one routine for several events

I'd like to set a flag called "bEditing" (Dim as Boolean) whenever the user has entered (called the Enter event) on any of the edit boxes on my form. Similarly I'd like to set "bEditing" to False when the Leave event is called on any edit box. Currently I'm having to set a separate sub-routine for each event for each edit box. Is there a way to pool them? You could do with Visual C++ 6.0 by manually editing the message map, and most other languages so I expect there's away to do it in VB! Using VB 2003.NET Thanks! Alain

Type Mismatch

I have a type *Address* and a type *ResidentialAddress* which inherits Address. When I try to execute SOMECLASS.ResAddr = OTHERCLASS.Addr I get the inevitable type mis-match error "unable to cast type ObjectModel.Address to Type ObjectModel.ResidentialAddress" I was thinking that since ResidentialAddress inherits Address, there must be some way to do this assignment

How to change 7 to 07 in VB Script?

Hi experts, Here is my code (test.vbs) <<<<<<<<<Start if CHour = 7 then CHour2 = "07" CurrentHour = cstr(CHour) end if MsgBox " Current Hour " & CurrentHour >>>>>>End If I have the number 7, I want to replace it with 07 in my code. What is wrong in the above snippet? In the MsgBox, I see only the Current Hour with no 07 :( Can you kindly help me out here? Thanks, -J

LDAP error

Hi, I'm testing a LDAP connection to my companies Active directory server and I'm getting the "An invalid dn syntax has been specified." error all the time. Here is my code: Dim entry As New DirectoryEntry() entry.Path = "LDAP://xxxxxx.company.se:389" entry.Username = "uid=MYAPP,ou=users,ou=internal,o=company" entry.Password = "yyyyyyyyy" entry.AuthenticationType = AuthenticationTypes.Secure Dim search As New DirectorySearcher(entry) search.ExtendedDN = ExtendedDN.Standard search.Filter = "(&(ou=ENN)(eriIsManager=Y))" search.PropertiesTo

how to force a text box to always be in focus.

Hi, I have an application that has a single text box, but many many buttons, and a few other controls (grid etc). The problem is that the application has a barcode scanner that acts like a keyboard. What I need to have is that the text box always has the focus, so at anytime the barcode scanner is used, the value is in the text box. If I push a button or slide the grid etc, the focus moves from the text box to the other control, which means when the bar code scanner scans, the value is not entered into the text box. Is there a way to have it so that the txt box always has

How do I find which screen my app is running in?

Hi, When my app starts it always starts up in the primary display of a multi-display setup. If the user decides to always put my app in screen 2, is there a way in VB that allows you to identify the screen you are running in? I would then check the screen I am running in as the user closes the app and store it in a registry setting. Then when the user re-opens the app make sure it comes up in the same screen (probably needs a test to ensure the user hasn't disconnected a screen since you last opened)? I have had a look at the "My" command and can find read only properties tha

data repeater in power code examples ???

Hi I want to add the data repeater to my existing winforms application. My application does all the database calls via code, so I am not using the designer(s) to create table adapters/dataset etc... Its all done in code. So I am having trouble binding the data repeater to an existing dataset. Does anybody know how to do this, or some sample code that shows how to do this, and then have a text box in the datarepeater show data in the dataset ? Thanks heaps...