How to compress and decompress a file in VB.Net
In this tutorial/code example, I’m going to provide you with a piece of code to compress and decompress a file in VB.Net without using any additional libraries.
Option Explicit On
Option Strict On
Imports System.IO
Imports System.IO.Compression
Namespace FileSystem
Public Class Compressor
''' <summary>
''' This metho...
Comparing two images to see if they are the same
In this tutorial I’m going to show you how to compare two images to see whether they are the same or not using C#.
/// <summary>
/// This method deals with checking whether the two bitmaps that are passed to it are the same or not
/// </summary>
/// <param name="img1">The first image</param>
/// <param name="img2">...
Tell if Microsoft Office Save As PDF add in is installed
In this VB.Net Tutorial/Code Example I’m going to show you how to check whether the Microsoft Office 2007 Save As PDF addin (available from here) is installed.
Public Shared Function isPDFSaverInstalled() As Boolean
Dim rtn As Boolean
Dim key As RegistryKey = Registry.LocalMachine.OpenSubKey("SoftwareMicrosoftWindowsCurrentVersionUninst...
Is Excel installed and what version?
In this VB.Net Tutorial/Code Example, I’m going to provide you with a simple class that allows for you to check whether Excel is installed on the computer and also figure out which version of the Excel it is.
The version function uses late binding.
Imports Microsoft.Win32
Namespace MS.Office
Public Class Excel
Public Shared Functi...
Is Word installed and what version?
In this VB.Net Tutorial/Code Example, I’m going to provide you with a simple class that allows for you to check whether Word is installed on the computer and also figure out which version of the Word it is.
The version function uses late binding.
Imports Microsoft.Win32
Namespace MS.Office
Public Class Word
Public Shared Function ...
Is Access installed and what version?
In this VB.Net Tutorial/Code Example, I’m going to provide you with a simple class that allows for you to check whether Access is installed on the computer and also figure out which version of the Access it is.
The version function uses late binding.
Imports Microsoft.Win32
Namespace MS.Office
Public Class Access
Public Shared Fun...
Is Outlook installed and what version?
In this VB.Net Tutorial/Code Example, I’m going to provide you with a simple class that allows for you to check whether Outlook is installed on the computer and also figure out which version of the Outlook it is.
{code}Imports Microsoft.Win32
Namespace MS.Office
Public Class Outlook
Public Shared Function isInstalled() As Boolean
Dim regClasse...
Check if a VAT Number is valid
In this VB.Net Tutorial/Code Example, I’m going to show you how to check whether a VAT Number is valid or not.
For this piece of code you will need to import “System.Text.RegularExpressions”
Public Shared Function isValidVATNumber(ByVal theVATNumber As String) As Boolean
Dim startChar As String = "^"
Dim endChar As String = "$"
Dim...
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