 Public Class DynamicControl  
    Private Sub DynamicControl_Load(sender As Object, e As EventArgs) Handles MyBase.Load  
        Me.Text = "javatpooint.com" 'Set the title for a Windows FOrm  
        Me.BackColor = Color.SkyBlue 'Set the background color of the Window form  
        Button1.Text = "Dynamic Button"  
        Button2.Text = "Dynamic TextBox"  
        Button3.Text = "Dynamic Label"  
        Button1.Font = New Font("Times New Roman", 12)  
        Button1.BackColor = Color.Red  
        Button2.BackColor = Color.Green  
        Button2.Font = New Font("Times New Roman", 12)  
        Button3.BackColor = Color.Violet  
        Button3.Font = New Font("Times New Roman", 12)  
    End Sub  
    Dim p As Integer = 1  
    Dim q As Integer = 1  
    Dim r As Integer = 1  
    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click  
        Dim label As New System.Windows.Forms.Label()  ' It is used to create label at run time  
        Me.Controls.Add(label) ' Add() method is used to Add Label  
        label.Top = r * 40  
        label.Left = 600  
        label.Text = "Label " & Me.r.ToString  
        label.Font = New Font("Times New Roman", 12) 'Set the font style of the label   
        r = r + 1  ' Add the Label one by one   
        MsgBox("You have successfully created a Label.")  
    End Sub  
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click  
        Dim Txtbox As New System.Windows.Forms.TextBox()  ' It is used to create TextBox at run time  
        Me.Controls.Add(Txtbox)  ' Add() method is used to Add TextBox.  
        Txtbox.Top = q * 40  
        Txtbox.Left = 340  
        Txtbox.Text = "TextBox " & Me.q.ToString  
        Txtbox.Font = New Font("Times New Roman", 12)  
        q = q + 1  
        MsgBox("You have successfully created a TextBox.")  
    End Sub  
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click  
        Dim button As New System.Windows.Forms.Button()  ' It is used to create button at run time  
        Me.Controls.Add(button)  ' Add() method is used to Add button.   
        button.Top = p * 40  
        button.Left = 100  
        button.Text = "Button " & Me.p.ToString  
        button.Font = New Font("Times New Roman", 12)  
        p = p + 1  
        MsgBox("You have successfully created a button.")  
    End Sub  
End Class

created 4 years ago by uma shankar

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