Calculator In Visual Studio
Visual Basic Tip Calculator
Visual Basic Simple Calculator Code Pdf
Create Calculator In Visual Basic

This is a simple calculator created using VB .Net

This are the Codes :

Output: Write First Program in Visual basic. How to Concat two string in Visual basic. + or the & operator is used to Concat two or more string in Visual basic. Below is the code to Concat two string in visual basic. Which contains 3 strings str1, str2,str3. Code provided in the picture should be simple to understand. Dim is the keyword used to initialize a variable, and new allocates memory. Anything you type in the textbox is of type string by default.

Public Class frmcalculator
Dim Operand1 As Double
Dim Operand2 As Double
Dim [Operator] As String
Private Sub btn1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn1.Click, btn2.Click, btn3.Click, btn4.Click, btn5.Click, btn6.Click, btn7.Click, btn8.Click, btn9.Click, Button2.Click
txtsource.Text = txtsource.Text & sender.text
End Sub
Private Sub btnclear_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
txtsource.Text = '
End Sub
Private Sub btnadd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnadd.Click
Operand1 = Val(txtsource.Text)
txtsource.Text = '
txtsource.Focus()
[Operator] = '+'
End Sub
Private Sub btndecimal_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If InStr(txtsource.Text, '.') > 0 Then
Exit Sub
Else
txtsource.Text = txtsource.Text & '.'
End If
End Sub
Private Sub btnequals_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
Dim Result As Double Code

Operand2 = Val(txtsource.Text)
'If [Operator] = '+' Then
' Result = Operand1 + Operand2
'ElseIf [Operator] = '-' Then
' Result = Operand1 - Operand2
'ElseIf [Operator] = '/' Then
' Result = Operand1 / Operand2
'ElseIf [Operator] = '*' Then
' Result = Operand1 * Operand2
'End If
Select Case [Operator]
Case '+'
Result = Operand1 + Operand2
MsgBox(Result.ToString('#,###.00'), MsgBoxStyle.Information, 'Result')
txtsource.Text = Result.ToString('#,###.00')
Case '-'
Result = Operand1 - Operand2
MsgBox(Result.ToString('#,###.00'), MsgBoxStyle.Information, 'Result')
txtsource.Text = Result.ToString('#,###.00')
Case '/'
Result = Operand1 / Operand2
MsgBox(Result.ToString('#,###.00'), MsgBoxStyle.Information, 'Result')
txtsource.Text = Result.ToString('#,###.00')
Case '*' Visual basic code of simple calculator tutorial

Visual basic code of simple calculator tutorial

Result = Operand1 * Operand2
MsgBox(Result.ToString('#,###.00'), MsgBoxStyle.Information, 'Result')

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txtsource.Text = Result.ToString('#,###.00')
End Select

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txtsource.Text = Result.ToString('#,###.00')
End Sub
Private Sub btnminus_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnminus.Click
Operand1 = Val(txtsource.Text)

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txtsource.Text = '
txtsource.Focus()
[Operator] = '-' Visual Basic Code Of Simple Calculator

End Sub
Private Sub btnmultiply_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnmultiply.Click
Operand1 = Val(txtsource.Text)

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txtsource.Text = '
txtsource.Focus()
[Operator] = '*'
End Sub
Private Sub btndivide_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btndivide.Click
Operand1 = Val(txtsource.Text)
txtsource.Text = '
txtsource.Focus()
[Operator] = '/'
End Sub
Private Sub btnaddminus_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button9.Click
txtsource.Text = -1 * txtsource.Text
End Sub
Private Sub btnx_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnx.Click
Dim convert As Single
If txtsource.Text <> 0 Then
convert = 1 / Val(txtsource.Text)
txtsource.Text = convert
End If
End Sub
Private Sub frmcalculator_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
If e.KeyCode = Keys.Enter Then Visual Basic Code Of Simple Calculator

Call btnequals_Click(sender, e)
End If
End Sub
Private Sub frmcalculator_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
Private Sub GroupBox1_Enter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GroupBox1.Enter
End Sub
End Class