 Public Module Program
	  Public Class Main
    Inherits Form

    Public Shared Instance As Main
    Private Shared ActiveChild As UserControl
    Private Shared WithEvents TimerFade As New Timer
    Private Shared AnimationState As MainFormAnimationState

    Enum MainFormAnimationState
        FADE_START
        FADING_IN
    End Enum

    Public Sub New()

        Instance = Me

        Me.MaximumSize = Screen.FromControl(Me).WorkingArea.Size
        Me.SetStyle(ControlStyles.AllPaintingInWmPaint Or ControlStyles.OptimizedDoubleBuffer Or ControlStyles.UserPaint, True)
        Me.DoubleBuffered = True
        Me.FormBorderStyle = Windows.Forms.FormBorderStyle.None

        TimerFade.Interval = 1

        DoubleBuffered = True

        LoadControl(New LoadingScreen())
    End Sub

    Public Shared Sub LoadControl(Child As UserControl)
        ActiveChild = Child
        Child.Dock = DockStyle.Fill
        Instance.Controls.Clear()
        Instance.Size = Child.Size
        Instance.Controls.Add(Child)
        Instance.CenterToScreen()
        AnimationState = MainFormAnimationState.FADE_START
        TimerFade.Start()
    End Sub

    Private Shared Sub TimerFade_Tick(sender As Object, e As EventArgs) Handles TimerFade.Tick
        Select Case AnimationState
            Case MainFormAnimationState.FADE_START
                Instance.Opacity = 0
                AnimationState = MainFormAnimationState.FADING_IN
            Case MainFormAnimationState.FADING_IN
                Instance.Opacity += (1 / (1000 * 2)) * 100
                If Instance.Opacity >= 1 Then
                    If TypeOf ActiveChild Is MainControl Then
                        DirectCast(ActiveChild, MainControl).RefreshControl()
                    End If
                    TimerFade.Stop()
                End If
        End Select
    End Sub

    Private Sub Main_Resize(sender As Object, e As EventArgs) Handles Me.Resize
        If Not IsNothing(ActiveChild) Then
            If Me.WindowState = FormWindowState.Normal And Me.Width <> ActiveChild.MinimumSize.Width And Me.Height <> ActiveChild.MinimumSize.Height Then
                Me.Size = ActiveChild.MinimumSize
                Me.CenterToScreen()
            End If
        End If
    End Sub
End Class

created 4 years ago

Visual basic (VB.net) Online Compiler

Write, Run & Share VB.net code online using OneCompiler's VB.net online compiler for free. It's one of the robust, feature-rich online compilers for VB.net language, running on the latest version 16. Getting started with the OneCompiler's VB.net compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as VB.net. OneCompiler also has reference programs, where you can look for the sample code to get started with.

Read input from STDIN in VB.net

OneCompiler's VB.net online editor supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample VB.net program which takes name as input and prints hello message with your name.

Public Module Program
	Public Sub Main(args() As string)
	 Dim name as String = Console.ReadLine()    ' Reading input from STDIN
   Console.WriteLine("Hello " & name)           ' Writing output to STDOUT
	End Sub
End Module

About VB.net

Visual Basic is a event driven programming language by Microsoft, first released in the year 1991.

Key Features

Beginner's friendly language.
Simple and object oriented programming language.
User friendly language and easy to develop GUI based applications.

Syntax help

Variables

Variable is a name given to the storage area in order to identify them in our programs.

Simple syntax of Variable declaration is as follows

Dim variableName [ As [ New ] dataType ] [ = initializer ]

Variable initialization

variableName = value

Conditional Statements

1. If

If condition-expression Then 
    'code
End If

2. If-else

If(conditional-expression)Then
   'code if the conditional-expression is true 
Else
  'code if the conditional-expression is false 
End If

3. If-else-if ladder

If(conditional-expression)Then
   'code if the above conditional-expression is true 
Else If(conditional-expression) Then
        'code if the above conditional-expression is true 
    Else
        'code if the above conditional-expression is false 
End If

4. Nested-If

If(conditional-expression)Then
   'code if the above conditional-expression is true
   If(conditional-expression)Then
         'code if the above conditional-expression is true 
   End If
End If

5. Select Case

Select [ Case ] expression
   [ Case expressionlist
      'code ]
   [ Case Else
      'code ]
End Select

Loops

1. For..Next

For counter [ As datatype ] = begin To end [ Step step ]
   'code
   [ Continue For ]
   'code
   [ Exit For ]
   'code
Next [ counter ]

2. For..Each

For Each element [ As datatype ] In group
   'code
   [ Continue For ]
   'code
   [ Exit For ]
   'code
Next [ element ]

3. While

While conditional-expression
   'Code 
   [ Continue While ]
   'Code
   [ Exit While ]
   'Code
End While

4. Do-while

Do { While | Until } conditional-expression
   'Code
   [ Continue Do ]
   'Code
   [ Exit Do ]
   'Code
Loop

Do
   'Code
   [ Continue Do ]
   'Code
   [ Exit Do ]
   'Code
Loop { While | Until } conditional-expression

Procedures

Procedure is a sub-routine which contains set of statements. Usually Procedures are written when multiple calls are required to same set of statements which increases re-usuability and modularity.

Procedures are of two types.

1. Functions

Functions return a value when they are called.

[accessModifiers] Function functionName [(parameterList)] As returnType
   'code
End Function

2. Sub-Procedures

Sub-procedures are similar to functions but they don't return any value.

Sub ProcedureName (parameterList)
'Code
End Sub