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Visual Basic 10

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Great Reads

Silverlight 3: Slideshow

by CS Rocks

This is a slideshow that works in a Silverlight 3 UserControl.

Working with CLR Objects in SQL Server 2005 or Above Part 2

by Abhishek Sur

Gives an introduction of how to create SQL CLR managed objects in SQL server.

Quick and Simple WPF Month-view Calendar - Updated

by kirkaiya

A very simple, XAML-based month-view calendar that shows appointments, exposes events, and allows dragging appointments in the current month.

Modeling the Biochemical System Using VB

by Mr. xieguigang 谢桂纲

Mathematical method of S-system equation to simulate a biochemical network system

Latest Articles

EXTENDED Version of Extended Rich Text Box (RichTextBoxEx)

by Robert Gustafson

I've created an enhanced version of the Extended RichTextBox created by Razi Syed.

Fluid, Multi-column, Vertically Ordered List using CSS

by Richard Atkins

Create a fluid, multi-column, vertically ordered list using nested, floating divs

Hosted WCF Service over HTTPS

by Alexandros Pappas

Example of a self hosted WCF service over HTTPS with transaction

Get NTP Time (and Extras)

by Doug- VisualBasic VB.NET

A quick Function to get UTC / NTP time

All Articles

Visual Basic 10

... is ambiguous in the namespace 'Microsoft.Office.Interop.Excel'

6 Sep 2022 by mikcutu

hello,I was building an application under vb.net 2008 which worked OK.Now, I was trying to migrate it into vb.net 2010 and I still receive errors relate to different ambiguous in namespace Microsoft.Office.Interop.Excel. This is refering to DataTable, Workbook, Worksheet,...

... is ambiguous in the namespace 'Microsoft.Office.Interop.Excel'

30 Sep 2012 by Sergey Alexandrovich Kryukov

No, it is not ambiguous is you reference proper assembly. With Visual Studio, for example, you need to reference an assembly using the ".NET" tab of the "Add Reference" window. When you do it, you add the reference to the "interop" assembly for a specific Office version. You will see the...

... is ambiguous in the namespace 'Microsoft.Office.Interop.Excel'

30 Sep 2012 by Sm.Abdullah

Your Question is not clear. but take a look here it may help full for you.I had also face situation similar to this.In my case "the error is an ambiguous reference between System.Windows.Forms.Label and ZedGraph.Label"actually both of these name spaces having same class name...

... is ambiguous in the namespace 'Microsoft.Office.Interop.Excel'

1 Oct 2012 by mikcutu

well, starting from your Sergey's solution, I was looking closely to the references and saw there are few other references to Office (different versions).I just removed all of them and added the right one (Microsoft.Office.Interop.Excel) and it passed over this error....just hope this...

.NET Reactor 4.0. tutorials

18 Feb 2012 by Ganesan Senthilvel

Nice tutorial is available at: http://www.eziriz.com/help/index.html[^]

[ASK] Crystal Report - rpt file cannot load data from access database. Why?

16 Jul 2011 by adadero

I'm learning to use crystal report in my project. When I move my project folder to another folder the report can't load the "new data" inserted into database. My original project folder is D:\Learning\ and when I copied to D:\Deploy\Learning\ the report can't load the new data. Please, help me...

[ASK] Crystal Report - rpt file cannot load data from access database. Why?

19 Jul 2011 by Kschuler

Is your database also kept in your project? If so...you may have to go the crystal report, right click on Database Fields in the Field Explorer, select Set Database location and find the database the new location.You might find more help in some of the CP Articles[^].

[ASK] How to display SDF database to datagridview?

9 Sep 2011 by derodevil

I try to learn how to populate sdf database from sql server compact into datagridview through codes. In sql server (mdf database) should look like thisImports System.DataImports System.Data.SqlClientPublic Class Form1 Dim cn As SqlConnection Private Sub MyConnection() ...

[ASK] How to display SDF database to datagridview?

9 Sep 2011 by Wendelius

With SDF you probably mean a SQL Server CE database file. If that's correct, then I guess you have a problem with your connection string.SQL Server CE doesn't have a database engine like for example Express edition has. Because of this, CE databases are used by connecting directly to the...

[ASK] How to display SDF database to datagridview?

22 Apr 2013 by Member 9993496

i see that you're programming using sdf files.do you know about .sdf files? its use for databases. i am going to make a sdf viewer but i dont know where to start. can you help me?i need to make a sdf viewer application using vb.net (window-based)

[RESOVLED] my application is blocking shutdown

2 Aug 2016 by ProgrammingEnthusiast

i have created an application that runs in background. when i minimize it, it will appear on the task bar. it is working fine, but when i turn off my computer, windows says that my application is blocking the shut down process. how do i close my application when i shut down my computer? i...

[RESOVLED] my application is blocking shutdown

2 Aug 2016 by Kornfeld Eliyahu Peter

There are certain talks (messages) between the Os and your application while OS try to shut down...OS actually sent a WM_QUERYENDSESSION to your application, but as you didn't handled it it got a false response, marking your application as blocking...Read this paper, to see how prepare your...

[RESOVLED] my application is blocking shutdown

2 Aug 2016 by ProgrammingEnthusiast

i have already resolved it by adding this code during form_closing event of my main form.If e.CloseReason = CloseReason.WindowsShutDown Then Me.Dispose

[VB.net/MS Access] Database not updating after removing row.

9 Mar 2011 by RadethDart

Alright, I am having the hardest time figuring this out. I have done research on fixing this for a couple days and I am stuck. It is time to ask for help.In my project I am trying to delete a row out of the database and I read how to do that from many different sources telling me to use Ole...

[VB.net/MS Access] Database not updating after removing row.

10 Mar 2011 by Dave Kreskowiak

I suggest reading the documentation on AcceptChanges and Update. Update writes the dirty records in the DataSet/DataTable back to the database. AcceptChanges tells the DataSet/DataTable that the changes that were made are now the current state of the records. The two operations are completely...

A (probably) quite common problem with numerics

27 May 2012 by Sander Rossel

So I'm having a small problem when working with numerics. I can't really imagine that I am the only one with this problem, yet I can't find any solutions. So here it goes.I am making an Attribute[^] which takes a numeric in its constructor (ANY numeric). Now here is the problem, there are...

A (probably) quite common problem with numerics

27 May 2012 by Mehdi Gholam

Usually attributes are processed once (type interrogation etc.) so performance is not critical so boxing is a viable option which reduces your code size.I am afraid you can not escape a big switch statement [or a nested IF] (if you can let me know! I have tried :) [DataTypes.cs in RaptorDB...

A (probably) quite common problem with numerics

27 May 2012 by Zoltán Zörgő

Have you considered using ValueType[^] as argument type of your constructor? As it is a larger subset than numerics, the utility in the above msdn article could be also of use.

A (probably) quite common problem with numerics

28 May 2012 by Sander Rossel

As far as I can see there is no way to have one single constructor. Using a ValueType[^] is an idea, but not very user friendly (since ValueType[^] can be more than just numerics, in which case I would have to throw an Exception[^]). By storing the numerics into a Private field as an...

A (probably) quite common problem with numerics

28 May 2012 by Andreas Gieriet

How about dynamic?If you are willing to pay the run-time cost, and if you are willing to give up on compile-time type check, dynamic could help.C# really lacks generics specialization and (especially if run-time performance matters) compile-time elaboration of generics.In C++ you can...

A (probably) quite common problem with numerics

29 May 2012 by Andreas Gieriet

As a followup to solution #4: if you don't have the dynamic feature at hand (VB.Net, .Net version before 4.0), you may employ casts (see the As(...) method): [AttributeUsage(AttributeTargets.Class)] public class MyAttrAttribute : Attribute { private object _arg; ...

A AsyncCallback of a Delegate opens a non reponding form

19 Sep 2011 by Member 7835126

Hello!I'm trying to use a async Delegate to show and populate a form but the form show up and stays Not Responding.Normally the form opens OK when it's sync with the code.Example situation:Before Class:Public Delegate Sub MyAsyncDelegate()In primary sub:Dim del As...

A complex Mathematics expression evaluation module in Visual Basic

5 Sep 2013 by Mr. xieguigang 谢桂纲

Object-oriented evaluator of the mathmatics expression

A Developer's First Look at Visual Studio 2010

19 Sep 2009 by jebarson

New features of Visual Studio 2010 discussed

A Downloader Source Code

24 Feb 2012 by tepet123

http://t0.gsta...

A Downloader Source Code

24 Feb 2012 by Abhinav S

TryMyDownloa...

A generic error occurred in GDI+ upon pressing Hotkey

17 Feb 2011 by zafi24

I manage to publish my my program to project. Its partially working. When I try to use Hot key function ALT Z, (To capture image) this error appears:Seriously I don't know what to do next. It seems working before I publish it without wany warning or errors. See the end of this message for...

A Look under the hood of the .NET Framework

11 Feb 2013 by Sander Rossel

Journey to the center of the .NET Framework with a chance of IL along the way!

A question on IInterface design...

17 May 2012 by Sander Rossel

Hi all,I'm having a little problem designing an Interface I have (not the GUI).What I basically have is two Interfaces that do the same, but one of them needs to get an extra parameter to a Function.Public Interface IDoSomething(Of T) Function DoSomething(ByVal something As T) As...

A question on IInterface design...

19 May 2012 by Sergey Alexandrovich Kryukov

I see no problem here at all. The interfaces may inherit one from another or not. A class or a structure can implement either of the two or both of them. How exactly you build this hierarchy depends on the application of all those types and does not depend on signatures of the methods you show...

A VB.NET application to fix Visual Basic 6 OCX security issues

2 Nov 2011 by gndzero

A threaded application to identify if system VB6 OCX files are exploitable and generate a batch file to register updated OCX controls.

About AccountPlus

4 Mar 2010 by acmamr

Hello,Thank you for your application AccountPlus.I am learning Dont Net now, so i hope study your application well.so i hope you help me.My e-mail is ahmedcheinane@hotmail.comRegards..

About AccountPlus

4 Mar 2010 by Khaniya

I think you are thanking on wrong placethis is question answers pageclick below to thanks Ashish TripathiAccountPlus[^]

About long COPCData::WriteVariable() function

14 Aug 2011 by sandy_1126

long COPCData::WriteVariable(LPCTSTR VariableName, const VARIANT& Value, long TimeOut){ long result; static BYTE parms[] = VTS_BSTR VTS_VARIANT VTS_I4; InvokeHelper(0x11, DISPATCH_METHOD, VT_I4, (void*)&result, parms, VariableName, &Value, TimeOut); return...

About long COPCData::WriteVariable() function

25 Aug 2011 by Leslie Zhai

VARIANT v1;v1.iVal = 111;XXX_OPCDataControl.WriteVariable("XX.XX.XX", &v1, 0);

Access image file in dll?

25 Mar 2011 by drummerboy0511

If I was to include an image file as an embedded resource in a dll in Visual Basic, how could I access that image and put it in a PictureBox control in my application?

Access image file in dll?

25 Mar 2011 by willempipi

www.google.com > http://www.rohitab.com/discuss/topic/15242-images-in-dll/[^]

Access image file in dll?

25 Mar 2011 by drummerboy0511

I managed to find an article that helped...Using embedded resources with .NET[^]

Add an independent Timer to keep track of how long a procedure takes, how to?

27 Dec 2012 by SandiegoSSD

Hey guys, I have a GUI in VB10 that's controlling some relays (cycling between 4 or sometimes 8 of them) and I'm using several timers to set delays between each 'switch' action. I want to somehow throw in another independent timer (ideally display the time in a textbox) to keep track of how...

Add an independent Timer to keep track of how long a procedure takes, how to?

27 Dec 2012 by Adam R Harris

Put a new timer on your form, set the interval to 1000 (1 second). Them on the Elapsed (or Tick i can never remember) event update your textbox. When your process starts call Start on the Timer and when its done call Stop on your timer.*** EDIT *****Oh yea, if you are running long...

Add an independent Timer to keep track of how long a procedure takes, how to?

27 Dec 2012 by Sergey Alexandrovich Kryukov

No, to time a procedure execution time, you don't need a timer at all. Instead, you need a stopwatch: http://msdn.microsoft.com/en-us/library/system.diagnostics.stopwatch.aspx[^].Also, correct timing needs some understanding of how JIT compilation works:...

Add up data in a column

29 Aug 2013 by PythonProgrammer

For my column Total i want to add up the numbers in my column. So say there are 10 people and only 8 inputed data...then it would be 8/10 * 100..... then i want to divide the number >=14 by the number inputed which would be 8 peopleDim ccount22 = 0 Dim ccount55 = 0 For...

Add up data in a column

29 Aug 2013 by OriginalGriff

The problem is two fold: First, you don't appear to set a value of count so there is no guarantee that it is anything like what you want - I would suggest that you should set it to myTable.Rows.Count, or set it to zero and increment it in the loop.More importantly, you are doing integer...

Adding Col in datagridview

15 Aug 2013 by PythonProgrammer

I have Columns 4 5 and 6 and i want to display them in colm 7 ex.Name Col4 col5 col6 TotalStephen 2 3 6 JOhn 5 9 11this is what i have so farDim col1 As IntegerDim col2 As IntegerDim col3 As IntegerPrivate Sub dataGridView1_CellLeave(sender As Object, e As...

Adding Col in datagridview

15 Aug 2013 by sv sathish

U can try thisImports System.Data.OleDbPublic Class help Dim con As OleDbConnection Dim cmd As OleDbCommand Dim adp As OleDbDataAdapter Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click con = New...

Adding Col in datagridview

15 Aug 2013 by sv sathish

http://www.dotnetperls.com/dat...

adding database while building setup file

10 Mar 2011 by basheer.j

hey ppl,can ny1 suggest me hw to go bout the following.I'm creating a simple application which includes 3 forms,which takes i/p,stores in the database(i'm using sql server 2008) and display back the searched item,now my problem is tat i want to create a setup file for the above application,in...

adding database while building setup file

10 Mar 2011 by luisnike19

If you don't have sql server in your other machine, you could install the DB using a sql script and pointing to another machine (instance of sql server)script[^]Depends if you are going to use installshield, VisualStudio, or another how you will do it.

adding database while building setup file

10 Mar 2011 by Dalek Dave

You asked this question in the VB Forum.Do not cross post.Also, do not speak like a child.If you feel only able to communicate in the digital equivalent of clicks and grunts then try another developer site.Txtspk is for insolent teenage girls and morons who cannot be bothered to type...

adding database while building setup file

10 Mar 2011 by Sandeep Mewara

Look at the answers given for the similar question asked here[^].Various article links are present in it that will help you achieve the same.Have a look at these too:Creating setup With support for database creation Using VS.NET[^]Create database during installation of a .NET...

Adding Fonts to a combobox in vb2010

15 Dec 2011 by Muhammady

Hello guys Can you help me out by telling me how to add all my computer fonts to combobox?

Adding Fonts to a combobox in vb2010

15 Dec 2011 by Himachandra

Need not to add....... Already all the fonts are available in properties column of ComboBox...........

Adding Fonts to a combobox in vb2010

13 Jan 2012 by Simon_Whale

Dim fnts As New InstalledFontCollection For Each f As FontFamily In fnts.Families() ComboBox1.Items.Add(f.Name) Nextfurther reading Find all installed fonts[^]

ADODB.Fields ToInternal Fields Marshaler problem

7 Mar 2016 by rangachisi

I cant run my application developed in vb.net2010 dot net framework 4 on client machines. i am getting this error messageCould not Load type 'ADODB.FieldsToInternalFieldsMarshaler' from assembly 'BBSSystem, Version=1.0.0.0, Culture-nuetral, PublicKeyToken=null'Someone please help

SQL-Server-2008

ADODB.Fields ToInternal Fields Marshaler problem

7 Mar 2016 by Yavuz Sevgi

find "adodb" in references and see adodb.dll properties. "Embeded Interop Types" set to false than you can set "Copy Local" to true .

SQL-Server-2008

An extra click required to get out of a while loop using .DoEvents() ?

15 Mar 2012 by SandiegoSSD

Hi folks, I wrote a small API gui to communicate over foundation fieldbus.I've used a While loop that constantly reads some parameter values from the bus.At the end of the While loop, I putApplication.DoEvents()so that I can use another button to stop the reading process. It all...

An extra click required to get out of a while loop using .DoEvents() ?

15 Mar 2012 by Sergey Alexandrovich Kryukov

Yes, and not just this. Never use DoEvents for such purposes. Always use a separate thread for anything which has it's own linear or circular logic, and for anything which contains blocking calls or contain lengthy operation. Even though DoEvents can work as a quick and dirty UI thread based...

An SNTP Client for C# and VB.NET

22 Jul 2009 by DaveyM69

A complete overview and implementation of SNTP from a client perspective.

Any advanced VB.NET graphics free tutorials on internet?

7 Aug 2021 by VBeginner.NET

I have learnt the basics and am able to draw various kinds of things on forms with persistent graphics and colour them. Now I would like to learn more but cannot find good tutorials. Do you know of such free tutorials on the Internet? I still do...

Any advanced VB.NET graphics free tutorials on internet?

7 Aug 2021 by Richard MacCutchan

Quote: I still do not understand classes and methods well (my background being in QBasic and VB3 and VB6). I do not understand the parameters that are passed in control event handling routines at all - sender, e, EventArgs, PaintEventArgs, etc....

Any advanced VB.NET graphics free tutorials on internet?

7 Aug 2021 by OriginalGriff

Classes, methods, events: these are the fundamental elements of any .NET programming - so if you don;t understand them, then whatever you do is wrong, even if it appears to work at the moment! :laugh: They are all far too big a subject to go...

Any codes to make cascade trainer using VB?

2 Feb 2020 by OriginalGriff

No. Several reasons, but you probably already know them given the number of questions you have posted so far. 1) We aren't a "code to order" service. While we are more than willing to help those that are stuck: but that doesn't mean that we are here to do it all for you! We can't do all the...

Applications and the UAC?

10 Mar 2012 by rspercy65

How Would I Check if a program has or needs a "runas admin" permission during runtime? using vb9, VB10, or VB11 beta. Thanks in advance for any answers, or (directions to an article), that could possibly resolve this little problem.

Applications and the UAC?

10 Mar 2012 by Sergey Alexandrovich Kryukov

I don't think you can do it automatically, even though some static code analysis algorithm could help. You just need to understand what causes permission problems and write code accordingly. Also, you can simply test the code without elevated privileges, but it can give you 100% guarantee, as...

Arduino Code Printing

15 Nov 2015 by David Vanson

A small application to pretty print Arduino code with syntax highlighting

Arkitech Platform Framework

22 Jun 2015 by Terence Wallace

The primary purpose of this article is to provide quality sample source code for VB.NET developers interested in building data-centric applications using the .NET Framework.

SQL-Server-2012

Arrays declared as structure members cannot be declared with an initial size

14 May 2013 by Amy Adams

I have the following code in VB6. How can I re-write this in Visual Studios 2012? As it is written below, I get the following error message: "Arrays declared as structure members cannot be declared with an initial size. "I've seen possible alternatives to how this should be written...

Arrays declared as structure members cannot be declared with an initial size

14 May 2013 by Sergey Alexandrovich Kryukov

Please see: http://msdn.microsoft.com/en-us/library/tey4z3ca%28v=vs.110%29.aspx[^].—SA

Arrays declared as structure members cannot be declared with an initial size

14 May 2013 by AspDotNetDev

Does this work:Structure selectStruct Dim options() As String Sub New(ByVal size As Integer) ReDim options(size - 1) End SubEnd StructureNote that I used "size - 1" because I'm guessing the original code should say "options(0 To 299)".

Arrays declared as structure members cannot be declared with an initial size

14 May 2013 by Maciej Los

Please, read my comment. You did not provide enough information to post exact answer.VB6 vs. VB.NET[^] - there are similar languages both not the same.Array class (VB.NET)[^]I would suggest you to use custom class. Please, follow this link: Using Classes and Structures in Visual Basic...

Arrays declared as structure members cannot be declared with an initial size

14 May 2013 by lewax00

My VB is rusty, but I think you want:Dim options(300) As Stringinstead of the line you have declaring it.

ASK - The Difference Between Socket and TcpClient or TcpListener

26 Oct 2011 by adadero

I have a very simple question regarding to .Net Sockets. What are differences between Class Socket and Class TcpClient or TcpListener in System.Net.Sockets namespace. Please, could you give me a link how to learn these? I'm looking for the tutorial everywhere and only finding console tutorial. I...

ASK - The Difference Between Socket and TcpClient or TcpListener

26 Oct 2011 by Mehdi Gholam

Read this : http://social.msdn.microsoft.com/Forums/en-US/ncl/thread/379cca53-9920-4167-bd51-d685b25ac0dc/[^]

ASM.Net - x86 Emulation

26 Dec 2011 by Drag0nHunter

ASM.Net a assembly x86 emulator which emulates the language the managed way

ASP, ItextSharp and Images and Gidview and Database

30 Jul 2012 by Ndamulelo Savhase

I'm working on a project, the main goal of which is to generate a PDF to be generated and sent as an Email attachment.A User Logs in/Registers..., then answers a set random of questions, and submits the answers.The user is redirected to an asp page after this, which has the results as they...

ASP, ItextSharp and Images and Gidview and Database

30 Jul 2012 by woutercx

An article about working with images and iTextSharp:It's about putting images at certain positions in a pdf with C#.But couldn't you have found it using Google?http://www.mikesdotnetting.com/Article/87/iTextSharp-Working-with-images[^]About the other question you had: this pdf doc...

ASP, ItextSharp and Images and Gidview and Database

30 Jul 2012 by Rene Bustos

Hello .Recently i develop a web service that generate a PDfthe first step is to load an image in png format with graphics class . then write the datagridview data over the png . and then load with itextsharp the image (bytes) and save in pdf format .This way is very very good cause the...

ASP.NET PDF Viewer User Control Without Acrobat Reader Installed on Client or Server

19 Sep 2013 by Ron Schuler

ASP.NET PDF document viewer control that does not require any Acrobat product to be installed

Assembly Manipulation and C# / VB.NET Code Injection

26 Apr 2013 by Sebastien Lebreton

Reflexil is an assembly editor and runs as a plug-in for Reflector or JustDecompile. Reflexil is able to manipulate IL code and save the modified assemblies to disk. Reflexil also supports "on-the-fly" C#/VB.NET code injection.

Assembly.GetExecutingAssembly(...

27 Sep 2012 by Sergey Alexandrovich Kryukov

The code you show won't even compile, because of "GetExecutingAssembly." in first line. It's "GetExecutingAssembly()...".Use Copy/Paste and create a decent code sample and then come again.—SA

Assembly.GetExecutingAssembly(...

27 Sep 2012 by rspercy65

This is the VB version and below is the C# version. C# version works. I used (in the VB version) Dim myStream As Stream = ... and I used GetEntryAssembly() to no avail. Still get the same MessageBox to trap the Null exception that gets thrown. Private Overloads Sub Refresh(tag As String) ...

Assembly.GetExecutingAssembly(...

27 Sep 2012 by Sergey Alexandrovich Kryukov

Unfortunately, I cannot see what is the difference between posted code and the C# code, because you did not show the C# code. It's more likely that the difference is in the arguments of GetManifestResourceStream. I can also suspect that executing assemblies are different, or the resources. By...

Assigning a Panel Control (say A) to another Panel Control (may be B).

21 Apr 2013 by Ashok19r91d

How to Assign a Panel Control with all its child Controls to Another Control?Let my form contains two Panels say PanelA and PanelB.PanelA in my form contains some Controls, but PanelB is empty panel by Default. During time, When a Button Click, I just need to Fill All Controls From...

Assigning a Panel Control (say A) to another Panel Control (may be B).

21 Apr 2013 by Idle_Force

Use a UserControl that you populate with the control which you speak of. When you need to duplicate it, it is as simple as initializing 1 object the UserControl and placing it in the other panel.

Async/Await: Unblock Gui without any additional Line of Code

12 Sep 2015 by Mr.PoorEnglish

After simple introduction the Article turns to less known, but useful/important/interesting Aspects of unblocking the Gui with Async/Await

Auto Contrast and Brigthness

22 Jan 2016 by Member 12280808

can anyone give me a code for auto contrast and auto brightness ?

Auto Contrast and Brigthness

22 Jan 2016 by F-ES Sitecore

Google[^]

AutoComplete ComboBox Control From Database

26 Aug 2010 by alrosan

autohotkey macro run using command button

7 Sep 2012 by D-Bar

Hello All, Thanks for reading my first post. My question is: In VS2010 I have a command button on my web app, when I click on the button I want it to act like it is entering keystrokes (Ctrl+o)to run my autohotkey macro. Is there any way to do this, and if so, how?Thank-you very muchD-Bar

Automatic number with date format

12 Jul 2017 by Khabibb Mubarakk

i have code here ... If Not dr.HasRows Then penfaktur.Text = "" + Format(Now, "ddMMyyyy") + "NF" + "0001" Else penfaktur.Text = Val(Microsoft.VisualBasic.Mid(dr.Item("no_faktur").ToString, 11, 4)) + 1 If Len(penfaktur.Text) = 1 Then ...

Automatic number with date format

12 Jul 2017 by CPallini

Maintain the last assigned Datetime and compare its Date part with the one of the Datetime you are currently assigning. On mismatch restart the counter.

Autosuggest custom Control

29 Nov 2011 by Ashu Mahajan

Hi Experts, I want to create an custom control just like an Autosuggest control for my windows application. When I type, it should show a grid for the suggestion have the typed value. for an example if I want to search a student "ashish". As soon as I type A in textbox, it should show...

Autosuggest custom Control

19 Dec 2011 by coded007

You can use ajax auto complete for this operationfor ref:http://www.asp.net/ajaxLibrary/AjaxControlToolkitSampleSite/AutoComplete/AutoComplete.aspx

Avoid duplicate records in VB.NET & ms access

12 Aug 2021 by Beginner213456

Situation: Adding New Records while avoiding duplicates. Question: How to Cancel the Insert Function when there is a duplicate Problem: the code detects if there is a duplicate and shows in a pop-up , but it still adds in the record anyways. ...

Avoid duplicate records in VB.NET & ms access

12 Aug 2021 by OriginalGriff

First off, don;t do it like that! Never concatenate strings to build a SQL command. It leaves you wide open to accidental or deliberate SQL Injection attack which can destroy your entire database. Always use Parameterized queries instead. When...

Await Tasks in C#4 using Iterators

29 Aug 2013 by Keith L Robertson

Write synchronous-looking asynchronous methods without async/await in Visual Studio 2010.

Backup Stored Procedures in SQL Server

13 Sep 2012 by CorvetteGuru

Backup Stored Procedures in SQL Server.

Bar chart in DataGridView

24 Aug 2010 by Santiago Santos Cortizo

How to show a bar chart in a DataGridView

Basics of Bing Search API using .NET

31 Oct 2009 by Abhishek Sur

This article will enable you to add custom search rules to your application using Bing Search API with much more

Bit Map Images Under A Panel

23 Jan 2011 by GaryV100

I am trying to draw random patterns in a picture box that has a black panel over the surface hiding the drawing below. But when I make the panel disappear (panel.visible = false), the graphics in the picture box UNDER the panel are also erased. In the code below (most of which was grabbed from a...