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• How to definie a VB.NET DataTable Column as primary key after creation

  - by user296575

  Hello I am importing Tables from a Oracle DataBase, using a VB.NET dataAdapter. I use the "fill" comand to add the imported data to a DataSet. How is it possible to define a specific column of a DataTable as PrimaryKey, after the DataTable is already filled with data? Thank your for your help.

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• how do I set folder share programmatically in vb.net

  - by Tareq

  I have Client-Server environment and developed a project for Client-Server. I need to share a folder of my Server machine programmatically using VB.NET Please help me.

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• VB.NET compress Decompress String

  - by GX

  Hello, How do I compress/decompress a string in VB.NET ? I am trying to send long string through the Network and need them to be as small as possible before sending. Thanks

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• Returning date from Stored procedure in ASP.Net/VB.Net

  - by Mo

  Hi, I want to execute a method on VB.Net to return a date which is in the stored procedure. I tried using ExecuteScalar but it doesnt work it retruns error 'Implicit conversion from data type datetime to int is not allowed. Use the CONVERT function to run this query' Any help would be much appreciated please? thank you below is the code Public Function GetHolidaydate(ByVal struserID as String) As DateTime Dim objArgs1 As New clsSQLStoredProcedureParams objArgs1.Add("@userID", Me.Tag) objArgs1.Add("@Date", 0, 0, ParameterDirection.Output) Return (CDate(ExecuteScalar(clsLibrary.MyStoredProcedure.GetHolidayDate, objArgs1))) End Function

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• Select Case on an object's Type in VB.Net

  - by mcjabberz

  I'm not sure if this valid C# but hopefully you get the idea. :) switch (msg.GetType()) { case ClassA: // blah case ClassB: // blah 2 case ClassC: // blah 3 } How would I switch on an object's type but using VB.NET's Select Case? I'm aware that some might suggest using polymorphism but I'm using a hierarchy of small message classes so that really wouldn't work in my csae.

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• How can I get the nickname and message from raw IRC data in vb.net

  - by Rob

  Well basically I've got a vb.net script connecting to IRC, and I'm working on making it a basic chat system, but I've run into a problem. Say I receive this: :[email protected] PRIVMSG #channel :message I want to grab specific information to output to the user. I want to grab nickname and message How can I go about doing this? I thought about using regex, but I can't figure out how to make regex grab message since there's nothing after it.

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• Checking a set of listbox items against a text box vb.net

  - by Shane Fagan

  Hi all I have this code to check if an item from a textbox is in a listbox and its giving me the error at the bottom. Any ideas what im doing wrong? I copied it from another part of my project and it was working for that part so I cant see whats wrong. If LocationsSearchTextBox.Text <> "" And LocationListBox.Items.Count > 0 Then tempInt = 0 While (tempInt < ClientListBox.Items.Count) If LocationListBox.Items(tempInt).ToString.Contains(LocationsSearchTextBox.Text) = False Then LocationListBox.Items.RemoveAt(tempInt) End If tempInt += 1 End While End If System.ArgumentOutOfRangeException was unhandled Message="InvalidArgument=Value of '2' is not valid for 'index'. Parameter name: index" ParamName="index" Source="System.Windows.Forms" StackTrace: at System.Windows.Forms.ListBox.ObjectCollection.get_Item(Int32 index) at AuctioneerProject.Viewing.LocationsSearchTextBox_KeyPress(Object sender, KeyPressEventArgs e) in C:\Users\admin\Desktop\Auctioneers\AuctioneerProject\AuctioneerProject\Viewing.vb:line 301 at System.Windows.Forms.Control.OnKeyPress(KeyPressEventArgs e) at System.Windows.Forms.Control.ProcessKeyEventArgs(Message& m) at System.Windows.Forms.Control.ProcessKeyMessage(Message& m) at System.Windows.Forms.Control.WmKeyChar(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.TextBoxBase.WndProc(Message& m) at System.Windows.Forms.TextBox.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg) at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData) at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.Run(ApplicationContext context) at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun() at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel() at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine) at AuctioneerProject.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 81 at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args) at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart() InnerException:

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• VB.NET: short cuts in code

  - by Craig Johnston

  Why is the following VB.NET code setting str to Nothing in my VS2005 IDE: If Trim(str = New StreamReader(OpenFile).ReadToEnd) <> "" Then Button2.Enabled = True TextBox1.Text = fname End If OpenFile is a Function that returns a FileStream

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• VB.NET to C# Converter

  - by superfly123

  Can somebody please show me a site where there is good conversion available from vb.net to c#? I appreciate your help. Thank you!

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• Convert VB.NET code to C#

  - by Sorush Rabiee

  Hi people, I have three projects written with VB.NET (2005) and have to convert them to C# code. (I know that i don't need to convert codes of .net languages at all). I have no time to rewrite them, need a tool or script to convert. Note: they are console applications.

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• VB Equivalent of C# Type Check

  - by Steven

  What is the VB Equivalent of the following C# boolean expression? data.GetType() == typeof(System.Data.DataView) Note: The variable data is declared as IEnumerable.

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• Starting a Process in VB.NET ASP.NET runs forever

  - by Nissan Fan

  I'm trying to Shell with a Wait or Process.Start() in VB.NET ASP.NET but it just runs forever. If I don't wait it runs fine and exits normally. What am I doing wrong? ReadToEnd, WaitForExit do not work. I'd much prefer to avoid delegates if possible.

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• How to generate alphanumeric id in Oracle which can be shown in vb

  - by banita

  In my vb application I want an autogenerated id of alphanumeric characters, like prd100. How can I increment it using Oracle as backend?

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• Shadows vs Overloads in VB.NET

  - by serhio

  When we have new in C#, that personally I see only as a workaround to override a property that does not have a virtual/overridable declaration, in VB.NET we have two "concepts" Shadows and Overloads. In which case prefer one to another?

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• VB.Net Sending byte array from client to server

  - by k80sg

  Hi guys, I am new to VB.net and struggling to get out of VB6's way of sending data, I am doing this to send a byte array from my client to server, please advice if this is the right way, thanks: The sending portion: Private Sub Button1_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles Button1.Click Dim arrNo(3) As Integer arrNo(0) = 1400 arrNo(1) = 1000 arrNo(2) = 1200 arrNo(3) = 1350 Dim i As Integer For i = 0 To arrNo.Length - 1 Dim outStream() As Byte = BitConverter.GetBytes(arrNo(i)) Debug.Print(arrNo(i)) serverStream.Write(outStream, 0, outStream.Length) serverStream.Flush() Next End Sub

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• vb.net, full number presentation with small double number

  - by chris123a

  hi! if I have a small double in vb.net e.g. dim x as double = 0.00000003 a conversion to a string would produce a E-presentation (3E-7). in debugging the value it will be shown as full number (0.00000003). how can I get the full number in a string? thanks! chris

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• Rotate label control in vb.net form

  - by Srin

  I have a Label control on the form with small text. i want to be displayed - rotated counter clockwise by 90 degree VB.NET / Visual Studio 2005 Windows Forms Application Any ideas

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• How to create dll in vb.net

  - by Manish kosta

  i am using vb.net 2008 and i want to make dll that will be use in c# project. please help me.....

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• VB script want to run .bat file from VB

  - by yael

  hi I am try to run the go.bat from VB but when I run the script I get: :cant find specific file but from the cmd window the file go.bat exsit what the problem? Dim MyShell Dim shell_cmd shell_cmd = "C:\Program Files\dir1\dir2\wizard\go.bat" set MyShell = CreateObject("WScript.Shell") MyShell.Run shell_cmd, 1, 1 from cmd window C:\Program Files\dir1\dir2\wizardgo.bat

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• hiding <div> from vb.net code side

  - by reffe

  i have this code for hiding a table and a cell in aspx, backend vb.net Code - For Each row As HtmlTableRow In tab_a1.Rows If row.ID = "a1" Then For Each cell As HtmlTableCell In row.Cells cell.Visible = (cell.ID = "a1") Next ElseIf row.ID = "b1" Then For Each cell As HtmlTableCell In row.Cells cell.Visible = (cell.ID = "b1") Next Else row.Visible = False End If Next now instead of tables I'm using tags. How can i use similar code and make div's visible and invisible?

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• DATE concept in VB.NET

  - by megala

  i have created VB.net project.In that i have two textbox,and two buttons button1--submit buttom2-Duedate textbox1 contain the current date My constraints is if i click button2(Duedate) than add 30 days to textbox1 date and assign that value into textbox2. How to achieve this? I want the result like as folloes If I give textbox1 = 12/12/2009 than I click Duedatetextbox2.text =11/1/2010 Is it possible. Thanks in advance.

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• VB.NET code for running multiple threads

  - by Harikrishnan

  How to I run multiple threads in VB.NET? Say I need 2 threads - one that prints 100 numbers in a loop and the second one that asks for the user's name and prints it inside a message box.

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• how to manage smooth playback in vb.net

  - by testkhan

  i am developing a video player for a local tv channel, which is working well but the main problem is a 1-2 seconds pause between changing one video to second video how can i control that pause so that the video comming next should be played right after the currnet video finished with not any pause or stoping or blank screen effect...... i am using windows media player in my vb.net form for video playback...

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• VB.NET: how to require CheckedListBox to have at least one item selected

  - by Craig Johnston

  With the CheckListBox in VB.NET in VS2005, how would you make it compulsory that at least one item is selected? Can you select one of the items at design time to make it the default?

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• Last but one character in a string in VB.net

  - by acadia

  Hello, I how do I find the last but one character in a string in VB.net. for e.g. I have a string Dim strTicket as string="56789-091F0" I want the value "F" Thanks for your help in advance.

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