Visual Basic

Page 655




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  • Problem with CreateProcess
    by JoeVB
    1 Replies
    Last post by JoeVB
      • This is a tough one, only for the patient. I am a bit curious myself who can help, I bet not many. It seems by the time I post things, there are no ideas left. We have an application (written in VB6) that is having some trouble, but just lately. This app is a service and it calls another (worker) app to do certain functions. We use CreateProcess to call the worker app. This code hasn't
  • Class.ForName() in vb.net?
    by Warren LaFrance
    5 Replies
    Last post by Warren LaFrance
      • Does anyone know the correct approach in vb.net that would produce the same result that class.forname in java does... static Employee create(String name) { return (Employee) Class.forName(name).newInstance(); . . .
  • busy waiting -- best approach?
    by Steve from adzac
    4 Replies
    Last post by Steve from adzac
      • Hi, I have inherited and updated a vb6 app to 2005. The app uses multiple forms to control some external test hardware. The overall structure is something like: FormMaster() Call StartTest(A) Call StartTest(B) Call StartTest(C) StartTest(...) Starts the hardware and starts two timers to get/process data from hardware. Opens FormTestStatus to display results. The f
  • StreamReading Resource
    by Alastair Q
    2 Replies
    Last post by Alastair Q
      • Hi there, I have currently got this code which is not working to attempt to read a textfile embedded as a resource: Code Block Dim objStreamReader As IO.StreamReader = New IO.StreamReader(My.Resources.Equations) Dim strLine As String strLine = objStreamReader.ReadLine ListBox1.Items.Add(strLine) While strLine.ToString = "" = False strLine = objStre
  • How do I copy bitmap data to a buffer?
    by Phil Rogers
    9 Replies
    Last post by jo0ls
      • I have an application that displays some images using PictureBox. There is a requirement to toggle between colour and monochrome or grey-scale versions of the image, so I've created a class derived from PictureBox that contains extra bitmaps that hold the various versions of the image, and then when the user switches between them, I just assign the relevant bitmap to the PictureBox. When the im
  • Transferring text to another form with datagridview
    by Quantzie
    1 Replies
    Last post by Riquel Dong ¨C MSFT
      • Hi I am a newbie programmer and I am having problems transferring data from a form to another and into a datagridview. My first form consists of: 3 listboxes (each labled lbox_"") 2 textboxes (txt_mn, txt_mcb [both for display functions only]) 1 button (btn_trans for transferring data to 2nd form) My 2nd form consists of: 1 datagridview (called DataGridView1) 1 text box (called TextBox1
  • How to determin in VB if a file is open by an other application
    by Grabner
    13 Replies
    Last post by HappyGene
      • I need to determin if a file is still open before i start to read it's content. How do i do this in Visual Baisc
  • Currency and Decimal
    by TeciTeacher
    4 Replies
    Last post by JohnWein
      • How do I display significan digits in decimal to represent currency value to only 2 digits below the decimal point as in cents. My class is doing consol application for a future value calculator. Thanks in advance Sub Main() Dim decInvestment, decInterestRate As Decimal Dim intYears As Integer Dim decMaturity As Decimal Console.Write( "Enter the inv
  • How to Break on All Errors?
    by Michael Cook
    1 Replies
    Last post by Matthew Gertz MS
      • In Visual Basic 6 under the Options...General tab, there is an option to "Break on All Errors". I've been unable to find a similar setting in Visual Studio 2005. Does something similar exist
  • how partitioning or splitting an AVIfile using VB.net ?
    by DimmuZangetsu
    1 Replies
    Last post by Bruno Yu - MSFT
      • Hi, how do i to splitting an AVIfile using VB.net , and i wanna play every part of this partitioned file. in other word how can i write the header of every part ( if i understood the structure of RIFF file, every file should have an header chunk, so all of these parts will lose the header chunk...), i know that i have to create a streamwriter to write in a Textfile, but i don't know how to do i
  • String.Contains
    by Cryo75
    3 Replies
    Last post by Cryo75
      • Hi all, I've got a problem with something that should be rather simple!! I've declared a constant as follows: Private Const VALID_EXT As String = "ini, rpt, cld, tif, jpg, png" I then loop through the files of a folder and validate their extension as follows: For lFile As Long = oFiles.GetLowerBound(0) To oFiles.GetLowerBound(0) oFile = oFil
  • do not see korean text with Microsoft Agent Genie
    by Tom Cubbins
    2 Replies
    Last post by Tom Cubbins
      • Hi, I am using the Microsoft Agent Genie to say some simple korean, that aspect of the code works well, but the 'ballon text' is not correct. what's the problem, should the encoding format be unicode maybe the encoding should be the double byte asia variety has anyone been able to correctly display asian text in the balloon text with Microsoft Agent Genie
  • Populate a combobox in a datagrid
    by Davids Learning
    7 Replies
    Last post by tattoo
      • I know it can be done, but I havent found a post on it yet. How do you populate a combobox already in an existing datagridview I do have a datagridview with a column that I would like to change to a combobox and give the user a chance to select something from another table. How do you populate the items list of an existing datagrid from a different table Then is there issue
  • After starting 2nd instance of single instance application.... vb2005
    by Tech_Prince
    10 Replies
    Last post by Tech_Prince
      • My application is of Single Instance. After opening the 2nd instance of application, the DoubleClick and MouseDoubleClick event of NotifyIcon (when minimized) gets disabled. How should i prevent it from Disabling Code Snippet Private Sub Main_SizeChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.SizeChanged If Me.WindowState = FormWindowState.Minimized Th
  • Using text from a textBox
    by Brandville
    7 Replies
    Last post by Brandville
      • Hi, I am writing a program and need some help in capturing information in a textbox typed by a user. Now, in my previous program the following code worked without a hitch ' The following line passes the value the user enter for PostalCode Try Me .CustomersTableAdapter.FillByPostalCode( Me .NorthWind1DataSet.Customers, txtPostcodeTextBox.Text) Catch ex As System.Exception
  • comaring two list boxes and displaying difference -Vb.net 2005
    by bell52
    1 Replies
    Last post by PEng1
      • I am new vb.net 2005 user and i really need help. I am trying to compare two list boxes and display the difference in a third list box. I was trying to loop thru list box2 and adding to the listbox1 collection and display the unmatched in listbox3. The column heading of the list boxes are date/action/quantity/price/order #. The key for comparison is the order #.Can somebody give me an idea on this
  • vb.net vs vb6 pros and cons help
    by Jamie LJ
    10 Replies
    Last post by SJWhiteley
      • Hi there i am a seasoned vb6 and vb.net developer and where i currently work, they use VB6. Now, we develop a range of office plugins for a client, and they currently use vb6, they also do some other projects with vb6. I want them to change to vb.net They have asked me for a list of Pros for switching, and also some Cons. The pros i have are: .Net is future proofed, VB6 will not be
  • Refreshing a page
    by davidk85
    5 Replies
    Last post by davidk85
      • Hi Guys, I need to be able to refresh my page so that added / deleted records are apparent in the controls within my page. I guess i need to call some sort of refresh function when a button is selected Any Ideas Many thanks david
  • change GUI language @ runtime
    by sydes141
    4 Replies
    Last post by sydes141
      • Hi, How can I a winform to change is display language from user interaction using resx file Thanks Sylvain
  • How Do I Read a Unformatted or Binary File the Was Created from a Big-Endian Machine?
    by more FAQ
    10 Replies
    Last post by more FAQ
      • I read in the integer values from a binary file and then write the integer values to the console. This binary file was ftp to my local PC from a UNIX big-endian machine (for testing purpose, integer values of 1, 2, and 3 are stored in this file). Here is the following code that I used: Sub Main() Dim br As New IO.BinaryReader(IO.File.OpenRead( "d:\data\val_integer.bin"
  • Sharing classes between solution projects
    by Antigen
    12 Replies
    Last post by Cynthia Joffrion
      • I have created a VB.NET project (Project1) in a solution and I would like to share some of its classes with a new project (Project2) I am adding to that solution. If I right click on the target project, Project2, and add existing items, and then use 'link file', I am able to add a link to the desired class files residing in Project1. However when building the solution I find that I get
  • Does anyone know the right approach: Printing text and Graphics
    by AbeAbe
    1 Replies
    Last post by Bruno Yu - MSFT
      • I have a problem finding the right (general) solution for printing text and graphics. In vb6 I wrote a general routine to output text and graphics. This was convenient since I only had to write the routine ones (short of a few different initializations for the different "surfaces"). My general routine drew on a supplied "control", like this: Function DrawAll(Draw2
  • Functions in computed columns
    by DRM55
    5 Replies
    Last post by John Oliver (UK)MSP, VSIP
      • I am using Visual Studio 2005, coding in VB, and the SQL Server that is included with VS2005. I have a VB module stored in the App_Code folder. In that module are public functions. I want to reference one of those functions in the formula for a computed column in one of the tables in my SQL Server database, but it gives me an error when it tries to validate the formula. How can I find documentatio
  • Assigning an InteropForm to a Form type.
    by Gravy
    3 Replies
    Last post by Jonathan Aneja - MSFT
      • Hi, I have created an interop form using the interop forms toolkit 2. It seems to work ok, but when my VB6 code tries to assign a new instance of it to a Form type I get an error. VB6 Code: Dim f as Form set f = new MyIntopForm etc... The error I get is Type Mismatch. Do I have to DIM f as the correct type Thanks for your help Graham
  • Hosting VB .NET User Control in C++ Application
    by Lou
    1 Replies
    Last post by Bruno Yu - MSFT
      • After I create a VB .NET VB6 User Interop control can that control be used in a C++ application. Also, If that control is used as a plug-in to a C++ app, what components are required to be present on the target machine running the C++ app beside the .dll for the user interop control I made