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Visual Basic 12

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Build My Own 3D Graphics Engine Step By Step

by Mr. xieguigang 谢桂纲

How to build my own 3D graphics engine from ZERO step by step

Powerful ShellScript for bioinformatics researchers

by Mr. xieguigang 谢桂纲

The ShellScript is originally developed for the debugging of my "genome-in-code" virtual cell simulation engine, but now it becomes a script language for a .Net program.

UpdaterApp - a Library for Easy Update

by William Costa Rodrigues

This article explains an easy method to download and update your WinForms application

Check the File Format of an Image.

by a_pess

Image File Format

Latest Articles

UpdaterApp - a Library for Easy Update

by William Costa Rodrigues

This article explains an easy method to download and update your WinForms application

Build My Own 3D Graphics Engine Step By Step

by Mr. xieguigang 谢桂纲

How to build my own 3D graphics engine from ZERO step by step

One Click - DB Script Deployment

by Mahesh Rajaram Shinde

This project is designed for addressing SQL Server Script deployment on multiple servers and databases.

Barcode Generator

by David Vanson

Generate you own barcodes for your business, Promotional items or to share links with friends.

All Articles

Visual Basic 12

Build My Own 3D Graphics Engine Step By Step

1 Feb 2017 by Mr. xieguigang 谢桂纲

How to build my own 3D graphics engine from ZERO step by step

Powerful ShellScript for bioinformatics researchers

14 Oct 2014 by Mr. xieguigang 谢桂纲

The ShellScript is originally developed for the debugging of my "genome-in-code" virtual cell simulation engine, but now it becomes a script language for a .Net program.

parallel-processing

UpdaterApp - a Library for Easy Update

26 Sep 2019 by William Costa Rodrigues

This article explains an easy method to download and update your WinForms application

Check the File Format of an Image.

15 May 2014 by a_pess

Image File Format

hi need help in vb and c# :)

11 Jul 2014 by Richard MacCutchan

The declaration:Private Declare Function SendCommand Lib "pf500.dll" Alias "WriteCommand" (ByVal porthnd As Long, ByVal seq As Byte, ByVal vlez As String, ByVal izlez As Long, ByVal stats As Long) As Integeris using the name SendCommand to refer to the function WriteCommand in the DLL. In...

Install Rails 4 and MySQL Server on Windows 7/8

22 Jul 2014 by Rocky R. Fernandes

Install Rails 4 and MySQL Server on Windows 7/8

How do I generate Barcodes

4 May 2015 by Sascha Lefèvre

Some barcode types (e.g. Code 39, Code 128, Interleaved 2 of 5) can be "generated" simply by using a font that displays the appropriate bars instead of digits or letters. So you wouldn't need any special component, just some code that is able to print text and then select the barcode font...

Part 2: CodeProject.Show DeepDive - exploring the source code behind

21 May 2015 by Anele 'Mashy' Mbanga

Exploring the source code behind the offline CodeProject article writer CodeProject.Show.

I have a problem after migrating my mdb database to accdb using MS access

16 Sep 2019 by Richard MacCutchan

You most likely need to upgrade to the latest Access DB engine: Download Microsoft Access Database Engine 2016 Redistributable from Official Microsoft Download Center[^].

Detect Image is Upside Down

2 Jun 2014 by a_pess

Check image is upside down in VisualBasic.NET

How can I change this VB code to C# code ?

6 Jun 2014 by OriginalGriff

Um. The fragment you show is trivial - and just a fragment. So I'll show you how to do the bits you show, and let you get on with it.VB:Dim ret As Long ' return value from OAPI callsC#:long ret; // return value from OAPI callsSee what I mean? Trivial...VB:Set myEtabs =...

How Can I Use This C++ Code "While(!Stack.Empty()){} On Vb.Nrt

23 Sep 2014 by PIEBALDconsult

How about something like while stack.Count > 0 ?

how do I copy multiple file(s) from checkedListBox to folder(s) VB

19 Oct 2014 by Sheepings

For a start, you are using the wrong control if you want to get a list of all files in a directory based on a folder path. (Unless you want specifically select these files only).You are using the OpenFileDialog when you would be better to use the OpenFolderDialog. I would only be using the...

VB.net. Bring all files over with referenced .NET dlls files when compiling.

26 Mar 2015 by Sergey Alexandrovich Kryukov

Yes. Look how it works. Microsoft wants everyone to reference some assemblies (in .NET, the key unit is assembly, "DLL" is just one of modules), use some types from them, and all works right away. For this purpose, by default, a separate output file is created for every assembly, per...

Communication Library Files - LMS5lib | Connection and Structure

16 Apr 2015 by Chris Jorna

Communication Library Files - LMS5lib | Connection and structure

How Do I Control Parallel Port Using Vb.Net 2012

12 Nov 2015 by Dave Kreskowiak

You do NOT want to attach LEDs directly to the parallel port. There are projects out there that will tell you you can get away with it, but you risk blowing up the port if you're not careful and with some ports, it won't work at all.It's possible to do but I recommended against it. See this...

How to get the file name from path?

1 Aug 2016 by Dave Kreskowiak

Path.GetFileName Method (System.IO)[^]Give this method the fully qualified path and it'll give you just the filename portion.

I have a problem after migrating my mdb database to accdb using MS access

16 Sep 2019 by Maciej Los

In addition to solution #1 by Richard MacCutchan[^] you'll need to change connection string. See: Access connection strings - ConnectionStrings.com[^]

I have an error while running an SQL query using parameters method (child list cannot be created

30 Sep 2019 by OriginalGriff

We can't help you based on that info: we have no idea what the base query you are appending to is, and that's probably relevant. I'd start by using the debugger: find out what exactly is in sqlQry when you create the SqlDataAdapter, and what exactly is in each parameter you pass over. At a...

SQL-Server-2014

What is the best database solution to be used with network shared drive using VB.NET application

4 Oct 2019 by OriginalGriff

Don't use Access as a multiuser DB - while you can do it, it's not a good idea and will always give you problems. For a 40 user network, I'd allocate a machine to SQL Server, and use that instead*. SQL Server is designed from multiuser working, and is much, much better at it - especially if your...

SQL-Server-2014

Change the value of a textbox in a report viewer from code VB.NET

17 Jan 2022 by Richard Deeming

If you want to set the header via code, the simplest option is to add another parameter, pass the required title in that parameter, and set the text box's text to that parameter. Otherwise, you could use an expression for the text box parameter,...

reporting-services

Login creation in VB.NET

20 Jun 2022 by OriginalGriff

That's the least of your problems ... so little code, so many problems. Let's start with the one you have noticed, because it's one of the most common problems we get asked, and it's also the one we are least equipped to answer, but you are most...

Working with usercontrols - need mousedown to work in a control (rectangleshape)

26 Mar 2023 by Graeme_Grant

If you want to pass the event from the UserControl to a parent container, like a Form, then you need to: 1. expose either a Method to a delegate (a method or function to call from within the UserControl) or 2. add a public Event property to the...

Extract Resources from an Assembly

18 May 2014 by a_pess

Demonstrates how to retrieve resources from a .NET Assembly in Visual Basic .NET

update date field in database by vb.net

21 May 2014 by Maciej Los

Use parametrized query, like this one:UPDATE tbl_CustomerCard SET fld_custPhone = @Phone, fld_ExpireDate = @Exdate WHERE fld_CardNo = @CardNoThen call it using SQLParamterCollection[^] for SQLCommand[^].For further information, please see: How to: Perform Parameterized...

An Workaround for Double Click on Treeview Checkbox

10 Jun 2014 by Thava Rajan

This tip is used to fix a workaround for a bug in double click on checkbox

remove selected element by javascript

26 Jun 2014 by Mohibur Rashid

As OP requested, the tip is copied to answer box so that he can acceptyou can just$(selectedObject).remove(); besides if you don't know id you get get id by$(selectedObject).attr('id')

What I Did Wrong / How This Can Be Done?

28 Jul 2014 by Sergey Alexandrovich Kryukov

In all versions of .NET starting from v.2.0, this is a correct method: http://msdn.microsoft.com/en-us/library/ms161352%28v=vs.80%29.aspx[^].If you are using some prior version of .NET, 1) migrate to any version starting from 2.0, or, better, 3.5; discontinue support of older version;...

SQL VisualBasic 2010 View Result From table1 using table2 where id listview.item(0).text

28 Aug 2014 by PhilLenoir

If I understand your requirement correctly, your select clause is flawed. Instead of using 2 subqueries in your where clause, use a join between the two tables in the subquery. Also, you can't embed the object itself in your SQL string, you need to concatenate:SELECT * FROM youtube...

[VB] Advices to develop an Idea

7 Sep 2014 by CPallini

This Wikipedia page could be your starting point: "Bin packing problem"[^].

artificial-intelligence

Using Web Configs Key Value pair in classical Asp pages

19 Sep 2014 by Shekhar Pankaj

Using Web Configs Key Value pair in classical Asp pages

Single checkbox to check multiple checkboxes in Visual Basic

15 Oct 2014 by NaibedyaKar

I think the best solution for this will be private void CheckUncheck() { foreach (CheckBox chk in groupBox1.Controls) { chk.Checked = chk.Checked == false; } }

how do I copy multiple file(s) from checkedListBox to folder(s) VB

24 Oct 2014 by Sheepings

Hi, here is a another solution for you which works perfectly. So you can also mark this as a solution too. If you have any questions, please post your questions under my solution and I will get back to you when I have some free time. :)As you requested alterations for the checkboxes...

vb online registration system

24 Oct 2014 by OriginalGriff

Google is your friend: Be nice and visit him often. He can answer questions a lot more quickly than posting them here...A very quick search using your subject line as the search term gave over one million hits: "vb online registration system"[^]In future, please try to do at least basic...

Unable to cast COM object of type 'system;_ComObject'

5 Nov 2014 by Richard Deeming

Assuming you're using .NET 4.5, you can use the built-in ZipFile class[^].Add a reference to the System.IO.Compression.FileSystem assembly, and Import the System.IO.Compression namespace. Then use:Dim path As String = IO.Directory.GetCurrentDirectory()Dim zipPath As String =...

Having trouble with error checking in arrays

16 Nov 2014 by dehumanate

Ok, let's see if, without using an IDE or a VB compiler, we can find some bugs!Firstly, let's simplify that huge loop - notice how ever block after each If statement checking intCount is the same? We can refactor this to use the loop effectively:Private Sub btnVerify_Click(sender As...

HELP how to copy/ duplicate files? visual studio

26 Nov 2014 by King Fisher

Refer this :http://msdn.microsoft.com/en-us/library/vstudio/cc148994%28v=vs.100%29.aspx[^]

How to code a program to decrease a text file size?

12 Dec 2014 by Sergey Alexandrovich Kryukov

Please see my comments to the question. Again, you are approaching it in a wrong way.When I replied that using big text files is a bad thing and asked about your goals, you did not really explain them, but you mentioned that "some sort of software" which probably doesn't give you a choice....

What is a Best Progamming language? Visual Basic or C#.net

6 Jan 2015 by Mehdi Gholam

The best programming language is the one that you use and are comfortable with.There is very very little you can do in c# or visual basic.net that you can't do in the other.

What is a Best Progamming language? Visual Basic or C#.net

6 Jan 2015 by King Fisher

complete comparison of both:Complete Comparison for VB.NET and C#[^]Don't skip any lines....

How do I change the sql db connection at run time in ASP.net using VB

9 Mar 2015 by manchanx

The ConnectionString where you specify the Database that should be used is a property of the Connection-Class. Just create a Connection-Object and then set the user-specific ConnectionString before using the Connection.edit:An excerpt from my database-access-class, maybe it...

How to update the textbox control in the updatepanel of the usercontrol using the Jquery in asp.net page?

19 Mar 2015 by Rahul121616

Following is the Jquery code for the change event whenever the file uploaded or changed. var document1FileUpload = $('#Document1FileUpload');var fileNameTextBox1= $('#fileNameTextBox1');document1FileUpload.die(); document1FileUpload.live('change', function () { ...

how can I change the thickness of a form border

21 May 2015 by Sergey Alexandrovich Kryukov

First, you can choose one from the available borders: https://msdn.microsoft.com/en-us/library/system.windows.forms.form.formborderstyle%28v=vs.110%29.aspx[^].If this is not enough, you can use borderless form and draw a border in the client area using overridden OnPaint method. To avoid...

Having a problem with opening a database

20 Jul 2015 by Wendelius

If the idea is to attach the database, you should use a different connection string. Try:Dim objConnection As SqlConnection = New SqlConnection("server= " & "DARBYSDEN\SQLEXPRESS14; " & "attachbbfilename=D:\Data Files\DVD_List.mdf;database=mydbname;" & ...

how to search between two dates in vb.net

12 Aug 2015 by OriginalGriff

"yes i am using database (access 2007)"So, just use a query:Dim dtStart As DateTime = dtpStartDate.ValueDim dtEnd As DateTime = dtpEndDate.ValueUsing cmd As New OleDbCommand("SELECT * FROM MyTable WHERE MyDateColumn BETWEEN @ST AND @EN", con) cmd.Parameters.AddWithValue("@ST",...

How to make the function key F5 to function by clicking a button in vb.net?

10 Sep 2015 by Jim Meadors

look up SendKeys and see if there is a way you can make it work with your button to activate your F5 key. You may need to play around with getting the program you want it applied to in Focus before it will work...

Show progress bar on DropDown Index Change and Page Load in ASP.Net

15 Oct 2015 by Palash Mondal_

Since the ShowProgress function is already attached to the submit button click like:$('form').live("submit", function () { ShowProgress();});You can just click the submit button again to trigger it like:-$("[id*=ddlCountries]").change(function() { ...

How to restart the aplication

13 Dec 2015 by Thomas Daniels

To restart a Windows Forms application, use Application.Restart[^]:Application.Restart()

I need some help with my project

22 Dec 2015 by CHill60

Firstly - anything that is intended for logging keys, grabbing passwords, hiding from Antivirus is intended for malicious purposes. That behaviour isn't just prohibited here but on all reputable sites. You will get no help with it.Secondly - you said that your teacher asked you to make a...

How to turn off monitor permanently ?

22 Jun 2016 by Dave Kreskowiak

Most monitors don't support being turned off completely by this command. Doing so normally just puts the monitor to sleep, not power it off. There is no way for you to get around this behavior and no documentation that I know of to tell you which monitors support this and which don't.

Deactivate system events completely?

25 Jun 2016 by Patrice T

Quote:Is it possible to deactivate all or any of system events?'Desactivate' is a bad idea.The OS handles system events, but don't 'Desactivate' them. System events are here for a good reason, just desactivate them is weird.I suspect you try to do this as a solution to another problem that...

[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...

Compare current with previous serial data visual basic

11 Jan 2017 by Dave Kreskowiak

The problem is that you're app doesn't store the information in a data model. You're using a display/edit control as your data container and that's not good practice. It's also what's making it very difficult for you to do this comparison.Create a data model in your code to store the data....

Filling datagridview combobox

15 May 2017 by Patrice T

Never build an SQL query by concatenating with user inputs, it is named "SQL injection", it is dangerous for your database and error prone. A single quote in a name and your program crash. If a user input like "Brian O'Conner" can crash your app, it is an SQL injection vulnerability. SQL...

How can I create a user control that navigates through buttons only

1 Jun 2017 by Richard MacCutchan

It sounds like you are talking about a Wizard Control. See vb.net wizard control - Google Search[^].

How do I make a slot machine animation

16 Jun 2017 by RickZeeland

This looks a bit dated, but might be of use: Visual Basic SLOT MACHINE[^] And another one: Creating a Video Slot game with VB.NET[^]

I am trying to validating date in visual basic 2013 but which code I wrote it cnt responsed, please help me

24 Oct 2017 by CHill60

Have you tried debugging? Here is a guide to how to do that Mastering Debugging in Visual Studio 2010 - A Beginner's Guide[^] Why redisplay the form (that is probably what is affecting your focus - try removing : Me.Show()

Change button color depends on the data from the database

2 Nov 2017 by Mrunal Sonawane

Hey... I made my own database and imported that database to Visual Studio using the DataGridView control... Do the same and then use this... Public Sub ExecuteColoring() Try Dim numberRows As Integer numberRows = DataGridView1.Rows.Count - 2 'We...

I want to decrease lines of this program please help

23 Nov 2017 by CPallini

You should use arrays of controls (e.g. txts(5) instead of txt5s) and arithmetic relations, in order to reduce all the Case stuff to If cur_years

Failed to convert parameter value from a string to a int32 error I m getting

4 Jan 2018 by OriginalGriff

Look at the error message: Failed to convert parameter value from a string to a int32 It's saying "I expected an integer here, and you gave me a string that doesn't contain an integer value." So look at cmd using the debugger and see exactly what you are passing as the command - and since...

How to read only 4th item ( number) from a text file row in VB? And display message box based on this number?

2 Mar 2018 by OriginalGriff

You can't read "a specific item" from a text file, because it doesn't have any implicit order - in fact even lines are just an interpretation of characters within the file: each time a newline character (or character pair, depending on the operating system) is encountered, that is the end of the...

Issue with validation (presence check) using VB.NET

21 Mar 2018 by Maciej Los

If you would like to get a list of TextBoxes, which name is txtBoxN (where N is a number) and TextBox is not empty, then try this: Dim pattern As String = "^txtBox\d$" Dim r As Regex = New Regex(pattern) Dim notEmptyTextBoxes = Me.Controls.OfType(Of TextBox) _ ...

Conversion from string "type" to type 'integer' is not valid.' please help me

19 Apr 2018 by OriginalGriff

So many bad ideas in such a short piece of code... 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. Use Parametrized queries instead. When you concatenate...

Adding two text box to sum text box

2 Apr 2019 by Leo Chapiro

I would implement the TextChange-Event on the both of the textbox1 and textbox2 like this: Try textboxsum.Text = Convert.toInt32(textbox1.Text) + Convert.toInt32(textbox2.Text) Catch ...

I have date error in SQL server database while using it with my VB.NET application

23 Sep 2019 by OriginalGriff

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 you concatenate strings, you cause problems because SQL receives commands like:...

SQL-Server-2014

I have an error while running an SQL query using parameters method (child list cannot be created

30 Sep 2019 by Maciej Los

My best guess is... If you're adding condition to your query, you need to add parameters too: SQLText.Text = sqlQry Dim ds As DataSet = New DataSet Dim da As New SqlDataAdapter(sqlQRY, cnnOLEDB) Dim cb As SqlCommandBuilder = New SqlCommandBuilder(da) ...

SQL-Server-2014

Empty records added to SQL server database while uploading bulk records through xls file in VB, net

7 Oct 2019 by OriginalGriff

Quote: taking into consideration that Excel.xls file has no Empty records Are you sure? Most Excel files have more empty records than non-empty: all that lovely whitespace at teh bottom! Since you don't specify any limits on what rows are returned: MyCommand = New...

SQL-Server-2014

Vb.net case sensitive using mysql workbench

25 Jan 2020 by Wendelius

Don't do like this. Never ever concatenate values directly to an SQL statament. It leaves you open to SQL injection. Instead, use MySqlParameter Class[^] Another thing that never must be done, don't store the password as plain text in the database. To do this correctly, see Password Storage:...

Vb.net case sensitive using mysql workbench

25 Jan 2020 by Richard MacCutchan

First point, do not use string concatenation to create SQL statements, it leaves your system vulnerable to SQL injection. Use parameterised queries always. Second point, do not store passwords in clear text, use salted hash values always. See Secure Password Authentication Explained Simply[^] ...

Vb.net case sensitive using mysql workbench

25 Jan 2020 by Patrice T

query = "Select * from login where Username= '" & txtuser.Text & "' AND Password = '" & txtpass.Text & "'" Not necessary a solution to your question, but another problem you have. Never build an SQL query by concatenating strings. Sooner or later, you will do it with user inputs, and this opens...

There is already an open datareader associated with this command which must be closed first. Please provide easiest way of fixing this with explanation

16 Mar 2020 by OriginalGriff

An SqlConnection can only support one DataReader at a time: when you "share" a connection you have to make sure that the reader is closed and disposed when you are finished with it at all times. The best approach is not to "recycle" SQL...

There is already an open datareader associated with this command which must be closed first. Please provide easiest way of fixing this with explanation

20 Mar 2020 by OriginalGriff

An SqlConnection can only support one DataReader at a time: when you "share" a connection you have to make sure that the reader is closed and disposed when you are finished with it at all times. The best approach is not to "recycle" SQL...

Help with date conversion differences between VBA and VB .NET

8 Apr 2021 by Maciej Los

I'm not sure what you want to achieve, but... You should use proper .NET data types and functions. See: Dim Thisdate As DateTime = New DateTime(2021, 7, 8) Dim JanuaryFirst As DateTime = New DateTime(Thisdate.Year, 1, 1) Dim tdiff As TimeSpan...

How to fixed a directory for generated files

24 Jun 2021 by Maciej Los

I'd strongly recommend to read this: Where Should I Store My Data?[^] The way to get user documents folder is to use: Environment.GetFolderPath Method (System) | Microsoft Docs[^]

Vb.net - using the same modules and forms in two projects

19 Aug 2021 by OriginalGriff

The way I'd do it is to create three projects: the two EXEs and a DLL which contains the "common stuff". Create that as a Class Library and add a reference to the project in both EXE projects. Then all you have to do is add the appropriate...

Vb.net vs Fortran - keywords and reserved words

25 Aug 2021 by Dave Kreskowiak

Keywords - Visual Basic | Microsoft Docs[^] FORTRAN 77 doesn't have any reserved words, but that doesn't mean using any keywords is a good idea.

Create a series of numbers in datagridview via VB.NET

4 Apr 2022 by OriginalGriff

A better way would be to use a loop: For i As Integer = 0 To 14 DGV.Rows(i).Cells(2).Value = i + 1 Next But ... since indexes are zero based, the column you want to index is probably 1, not 2

What is the right code to not exceed the sold quantity than the available quantity?

8 Jun 2022 by OriginalGriff

Look at the Math.Min operator: mostYouCanHave = Math.Min(qtyInStock, qtyOrdered)

Login creation in VB.NET

21 Jun 2022 by Richard MacCutchan

Look at the code: Dim conn As New OleDb.OleDbConnection Dim dbProvider As String = "PROVIDER=Microsoft.Jet.OLEDB.4.0;" Dim dbSource As String = "Data Source = C:\Users\Sam\Documents\User Accounts.mdb" Dim adapter As...

How can I optimize this VB code?

26 Dec 2022 by OriginalGriff

Do yourself a favour, and don't use strings at all. Create a Card class, which has a Value and a Suit and then a Deck class which contains a List of Card objects. Populate the Deck with all 52 possible cards, and then write a Shuffle method that...

How can I optimize this VB code?

26 Dec 2022 by Graeme_Grant

As OriginalGriff pointed out, it's much easier to use objects to represent The deck, cards, etc. If you think about it, it is no different from the actual objects in real life. A card has a suit and value. A deck has a number of cards. A dealer...

How I fill in any textbox in form and show active fill to 1 label

4 Jul 2023 by OriginalGriff

As the others have said, that many textboxes on a single form is a pretty poor UI design: it's difficult to manage, difficult to code for, and difficult for a user to process. It also probably looks very ugly! :D If you need to present or...

Receive and control serial device data in visual basic

13 Nov 2017 by Παλαβρατζής Βασίλης

Hello everyone!! I have a serial device which sends me data at the baudrate of 38400 and i get it like this "?@D00014C000 000".I can see data comes in on a ritchtextbox but what im trying to do is to use some characters from the string in a list box. For example i want characters "14C" appears...

Receive and control serial device data in visual basic

13 Nov 2017 by CPallini

Quote: Me.rtbReceived.Text &= [text] Dim fine As String = Mid([text], 7, 3) Dim list As Integer = ListBox3.Items.Add(fine) The problem is you are adding to the list while the text box string might be still incomplete (you are building it incrementally). You have to...

Vb.net - accessing/changing/updating properties of dynamically created objects (textbox-labels)

25 Oct 2023 by OriginalGriff

They don't have "name variables" because they are created at run time (when your app is executing) rather than at compile time - so the only time anyone knows how many of them there are is long after all the variable names have been assigned. So...

How do I change this For... Next statementinto a Do...Loop

6 Apr 2014 by Peter Leow

In For loop, it is 3-in-1:1. declaration and initialization of dblRate As Double = 0.052. condition check dblRate

VB Script to automate IE settings

13 May 2014 by Member 10815549

I want to make some changes to IE settings of many PCs to be able to open a tool which willl be used by all users using the systems.. Since same settings are to be applied to different systems. I want to automate it using vb script . Settings are :1.Go to internet Options--...

How do I use Crystal Report to generate a report from two different tables

18 May 2014 by SamFad

Please I need urgent assistant in dynamically generating a report at run-time from two or more tables within a database using crystal report.If I use a single table I don't have issues but trying to generate from two or more tables is the challenge I have.Below are code snippet of how I...

update date field in database by vb.net

21 May 2014 by Vipin Sharma

i am developing an app ,the problem is when i update a form the query runs properly and it update the other field but the date field wont update ,it set to its minimum value 1847 something like this. this is my code . Dim dt As Date dt = dtp_Expired.Value ...

How to print preview a asp .net panel containing grid view

22 May 2014 by Keerthi Kumar(Andar)

Hi experts,I want to view my panel control in print preview view.that panel contains a grid view including some in template field i don want that images in pdfis there any way to view the panel as print previewthanks in advance(Keerthi Kumar)

How to print preview a asp .net panel containing grid view

22 May 2014 by Rao Lokesh

use javascript methodfunction FunctionName (s,e){////Make visible false those controls you don't want to see in print Window.Print();////Make Visible true those control again }For Example :-function printdata() { imgPrint.SetVisible(false); ...

Why My Thread Safe Generic List Does Not Respect My Enumerator

22 May 2014 by a_pess

ThreadSafe Generic List

how to edit numerical values in a paragraph without editing any character content?

22 May 2014 by Sidharth R

how to edit numerical values in a paragraph without editing any character content??i'm using vb form and mssql databasei have a paragraph content including some numeric values date and character.i need to take the entire string and need to edit the numeric numbers in the string via...

how to edit numerical values in a paragraph without editing any character content?

23 May 2014 by Manikandan10

I wrote the code for only extracting the numbers. Public Class Number Public Value As Integer, Position As Integer Public Sub New(v As Integer, p As Integer) Value = v Position = p End Sub End Class Public Shared Function...

change panel back grpoun after side scroling......

24 May 2014 by Kailashkumar Raghvani

i have an panel control and change back background image Using Scroll in and Scroll out using do while loop

how to do visible=false of a grid view columns and footer using javascript?

27 May 2014 by Keerthi Kumar(Andar)

Hi experts,I have one grid view am trying to print that grid view using javascript,but the grid contains footer roe and image's in the first column. i want to hide the images and footer row while printing . can any one please help me to solve this issuemay java script is

how to do visible=false of a grid view columns and footer using javascript?

27 May 2014 by Peter Leow

This may help: Adding & Removing GridView columns in the Print Preview using JavaScript [^]

Help regarding Date time Picker and Windows Form Resolution

2 Jun 2014 by OriginalGriff

"Is it possible to retain the value of datetimepicker object to a local variable rather than using a database?"Yes - you can store it in a DateTime and serialize it any way you want, within reason - you don;t have to use a DB:Dim myDate As DateTime = myDateTimePicker.Value "I also want...

Ajax Autocomplete extender is not working in vb .net

3 Jun 2014 by Keerthi Kumar(Andar)

Hi experts,i want to add ajax autocomplete extender in my project that has been created in vb.but service method is not calling. Its not working properly please help me solve this issue.my code is

Ajax Autocomplete extender is not working in vb .net

3 Jun 2014 by DamithSL

change your web method signature as below System.Web.Services.WebMethod()> _Public Shared Function GetCompletionList(ByVal prefixText As String, ByVal count As Integer) As List(Of String)End FunctionAnd you better follow the stems in AJAX...