103 Reusable Code Snippet Topics
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 | VB.Net never meant for games! it's more recommended for software developement, but hey why not have some fun. If anyone out there is looking to create an Angry Birds Game-like or a Simulator for throwing an object, you've come to the right place, this code will give you great start/push … |
 | Now I am going through a project with colors. And then I think that if I try to display color values with their names in a simple combobox, it could be amazing. I tried and did it and it is looking like  And  And finally the … |
| | If Me.cbobraketype.SelectedItem = ("Rim Brakes") Then braketype = ("Rim Brakes") price = "£120" braketype = ("Rim Brakes") ElseIf Me.cbobraketype.SelectedItem = ("Disk Brakes") Then braketype = ("Disk Brakes") price = "£150" braketype = ("Disk Brakes") End If 'choose type of frame If Me.cboframetype.SelectedItem = ("Aluminium") Then frametype = ("Aluminium") End If … |
 | OK, not completely, I admit. I used some different colors(colours) here and there. But this code will put you on the way. This is a little modification of code I use to show a matrix in a form. Just start a new Forms app and fill in the code. Enjoy! |
 | There are times when you need to make sure your counter starts at an odd or even number. Even is pretty simple - `counter = counter + modulus(counter)`. If counter is even it stays, if it's odd it gets incremented by 1. Odd is a bit more complicated - `counter … |
 | A long standing complaint with the standard progress bar control is that there is no easy way to display text. In spite of numerous requests, Microsoft has not included this capability. The following code includes a class, `CustomProgress` which inherits the standard `ProgressBar` and adds such a feature. It is … |
| | As part of a project to manage my collection of photos, I wanted to add the capability of displaying a series of files as thumbnails. This posed me with three problems: 1. how to preserve the aspect ratio of the original images 1. how to generate the thumbnails without tying … |
| | This was a query raised by one of a forum members at another site, where he had a worksheet filled with random numbers, and I have already answered that query [at my post here](https://vbacoder1962.wordpress.com/2019/07/15/extracting-cell-phone-numbers-from-random-strings-of-variable-length/). You may go through that post and read the logic behind the code.  |
| | **I would Like to Use this code after you have clicked into your textbox And I am Edwin Have a good Time**  |
| | I was so amazed at how easy it was to embed google maps into a vb app I decided to post a quick example to help anyone get started. This is a simple example. Google's api has all kinds of things to help customize your map. You can find out …  |
| | vb.Net - Regular Expression Tester Every now and then I find another use for a regular expression. For those not familiar with regular expressions, they can be as cryptic to read as strings of Greek letters. Simply put, regular expressions are just patterns. If you've ever used the DOS command … |
| | Several people have asked how to export data to Excel. This code snippet shows how to export the data from a listview in details mode to a new Excel spreadsheet. Take note of the comments in the header to avoid having orphaned Excel.exe tasks eat up your system memory. |
 | The present code snippet just does an especific task. This is, given an ordered sequence of natural numbers, starting at zero, generate all the different permutations there can be. When we talk about permutations, the order of the sequence does matter. So, the sequence 0, 1, 2 differs from 2, … |
| | Here's an interesting little scenario. You get challenged to a game of coin toss. Both players pick a sequence of coin toss results (heads or tails). The coin is repeatedly tossed until the sequence for one of the players occurs. The loser pays the winner a dollar. You'd assume that … |
 | # BlowFish? # BlowFish was the brain child of Bruce Schneier back in 93. Since BlowFish was released to the public domain, Bruce Schneier has released new encryption algorythems, TwoFish and ThreeFish. BlowFish is an increddibly popular and very strong algorythem. Because it conforms to Kerckhoffs's Principal [Explained Here](http://en.wikipedia.org/wiki/Kerckhoffs's_principle), even …  |
| | There are many examples of compressing files in VB.Net. So many of these examples are using third party libraries which is just not neccesarry. People were saying that files and archives exceeding 4Gb couldn't be used... I hate restrictions and decided to "Stick it to Microsoft" To get a better …  |
| | Hey guys, does anyone know how to do this? Here is my current code that will not work. I have tried everything that I know how to make this work to no avail. This is under form1_load. Any help would be awesome. Thanks in advance. |
 | Here is a small extention of the Panel class that allows you to 'collapse' it. So far, the user can place a control on the parent form and perform a collapse/expantion by: 'Where cpNew is a Collapsible Panel If Not cpNew.PanelCollapsed Then cpNew.Collapse() 'or If cpNew.PanelCollapsed Then cpNew.Expand() I will … |
| | I know that this probably has been done by someone, but I want to learn how to do this using VB 2010 express. I cannot seem to get the numbers to stay in the text boxes that they are dropped in. The numbers always go to the last box (#81). … |
 | This is the code to align the content of a Panel in the Center, Hope this Helps :) |
 | I have just seen a resurrected thread about issues with loading images to a PictureBox and the inability to delete the file while the program is running. There was no clear explaination of the problem, only suggested hacks and apparent frustration. So I thought I would offer this explanation from … |
| | I am posting this in response to those who ask about replacing the webbrowser (WB) control’s default browser. You cannot ask the WB control to use a different browser, it is hardwired to use the current version of Microsoft’s Internet Explorer that is installed on the target computer. It may … |
| | =======Download The Full Solution Below======== This will be my last VB.Net soure as I've made the move to C#. For a recent job application I was given the technical test to create a horse race simulator which would calculate the odds of a runner winning a race of up to … |
 | This snippet demonstrates how you can add VBA code to an Excel file at run time. **Prerequisites** In this snippet I am using Microsoft Excel 2013 with the Microsoft Excel 15.0 object library. Before you can use this code, you will have to change a setting within Microsoft Excel to … |
| | By means of Mates8, graph coding becomes a bit easier. The web page has four textboxes so the figure gets bounded to the left, right, top and bottom; and a draw button. Additionally, a panel control will contain the image generated by the code after the button is pressed. |
| | This conception I get from a post on CodeProject by [Heriberto Lugo](http://www.codeproject.com/Tips/837177/Recursion-for-Beginners-Sorting-Ten-Numbers-Withou). But that was for only 10 numbers. Then I had an idea to use it in vb. There are many shorting process like Bubble Short, Linear Short etc. But exceptionally it does not use loops as others do. … |
| | Using .Net's SHA1 Crypto Service to compare hashes between a user's password and their stored hashed password. Simplez =0) |
| | I was just mucking around with a progress feature for some software, and thought I'd just put this wee demo up of a clocky type progress thing =0) Just Copy and paste the form code and watch it run. (p.s it's in degrees, note minutes and seconds)  |
| | After trying to manipulate PNG files and failing miserably discovering that the standard GDI doesn't provide support for any PNG parameters decided to provide some basic image manipulation functions built into .Net that I came across on my investigations. 1. Adjust Image Quality 2. Flip Image Horizontally 3. Flip Image … |
| | Did you know that you can data bind a bitmap to a PictureBox's image property, and the source image doesn't have to be in a binary format stored in a data table? Using a standard object setup for data binding (iNotify etc.) you can easily update your program's image propertie's … |
| | Well, start a new forms application from VS. In design mode, drop a DataGridView and a Button on the form and fill in the code. The button clickhandler will add an extra totals row to the datagrid. Here it will keep adding and totaling, which is of course meaningless, but … |
| | NOTE: The games GUI is not fully implemented, so changing it's image and difficulty is done manually in the Button.Click Event NOTE: Whether you download the VS2013 source file or copy and paste the code, you need to download, and extract the two image files to the project's "Bin\Debug" directory. … |
| | >Take Heed There are lots of things to be aware of with the Windows Registry. In most cases the best thing to be aware of is that ideally you should avoid playing with it at all costs. Alas, we are what we are and we do what we do. My … |
| | I'm currently working on a collection of sub-projects, one of which was a backup manager. I needed to be able to allow the user to specify a backup time and a repeat interval. After thinking about the solution, decided it would be best for the user to provide an Initial … |
| | Here's a simple game code, open a new vb project and copy paste this code and hit run. the game contains 3 levels, all you have to do is to shoot the smiley faces to earn money using mouse clicks, also there's a boss enemy on level 3. I didn't … |
| | Sometimes you want to add a little functionality to an existing class but you don't want to go to the trouble of sub-classing. A technique that you can use is known as **Extending**. For example, I frequently use regular expressions when working with strings. Wouldn't it be nice if strings … |
 | every combobox selection is replaced with what a user has selected, I want it not to be replaced so that all seleced combobox can be printed |
 | Here is a class I wrote to manage the MRU in a VB.Net application am writing. I did not find a build-in class in Visual Studio or on-line that did not look like a pain to use, so I made my own. While I have some 30 years of programming … |
 | Using the Load and Unload events of the Forms add these subs to handle a simple fade in and out effect. This is not limited to just one form. The subroutine definition can be added to any global class allowing the use on any form or sub-form.  |
| | If your Excel spreadsheet is laid out as regular columns and rows with a header row that identifies the columns then this code will allow you to read the data using ADODB the same way you would read records from a database table. To try this code 1. Create a … |
| | This is a module that can be used to save tiff images pass in from a file dialog. This module was translated from C# to VB.net, and the original project can be found [URL="http://www.codeproject.com/Articles/16904/Save-images-into-a-multi-page-TIFF-file-or-add-ima"]here[/URL]. I do not claim rights to this code. You can copy this code straight down into …  |
| | Lets say you have lots of data your listview. Now you want to Group This data According to a Perticular Subitems. For Example: Suppose i have some books data in my ListView. this listview items contains Author name and Books Title. And there are 2000 Books in list view. Now … |
| | Simple Encryption and Decryption Function using rijndael algorithm. Imports this: Imports System.Security Imports System.Security.Cryptography Imports System.IO Imports System.Runtime.InteropServices Imports System.Text.RegularExpressions Imports System.Text Source : [snipped] |
| | Several people have asked about storing binary data in a database. I coded up an example today that uses an ADODB.Stream to copy the binary data but after some fiddling I found a more direct way. If you are using MS SQL Server, the easiest way I have found is … |
| | The days when the calculator had almost 3 thousand visits a day have gone. Since then, there have been several major versions and lots of minor versions. Somehow, I feel pleased in that the present core algorithm follows the rules of the first I read; of course, extending the simplicity … |
 | This module is for validating textboxes.... After using this module in your project you can simply validate all of your text boxes like [CODE] Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load AssignValidation(Me.TextBox1, ValidationType.Only_Digits) AssignValidation(Me.TextBox2, ValidationType.Only_Characters) AssignValidation(Me.TextBox3, ValidationType.No_Blank) AssignValidation(Me.TextBox4, ValidationType.Only_Email) End Sub [/CODE] |
| | Btw. this is not a sudoku solver. To gain a deeper insight into the workings of the DataGridView beast (but I begin to love and appreciate it) I decided to make myself a sudoku layout with it. Start a forms app. Make the form a bit bigger and fill in … |
| | Upon resizing an anchored combobox - I noticed the text was always selected. This sparked the initiative to fix this problem. (Microsoft decided not to) So by extending the combobox class we can fix this. The following class can be dropped into a form for designer manipulation or as a … |
| | A lot of questions in the VB.NET forum are database related. Most of the code that gets posted result in one or more comments like "use parameterized queries to avoid SQL injection attacks". I won't describe the nature of a SQL injection because it is easily looked up via google. … |
| | One of the things I have been steadfastly avoiding is writing code to print stuff. Most of what I want to print is from withing apps like Outlook or Word that already provide that functionality. But I finally ended up having to bite the bullet. What I ended up with … |
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