Public Class Form1
Dim Valore1 As Double
Dim Valore2 As Double
Dim Totale As Double
Dim Op As String
Dim Val2 As Boolean
#Region "Numeri"
Private Sub Button17_Click(sender As Object, e As EventArgs) Handles Button17.Click
If Val2 = 0 Then
Valore1 = Valore1 & "1"
RichTextBox1.Text = Valore1
Else
Valore2 = Valore2 & "1"
RichTextBox1.Text = Valore2
End If
End Sub
Private Sub Button18_Click(sender As Object, e As EventArgs) Handles Button18.Click
If Val2 = 0 Then
Valore1 = Valore1 & "2"
RichTextBox1.Text = Valore1
Else
Valore2 = Valore2 & "2"
RichTextBox1.Text = Valore2
End If
End Sub
Private Sub Button19_Click(sender As Object, e As EventArgs) Handles Button19.Click
If Val2 = 0 Then
Valore1 = Valore1 & "3"
RichTextBox1.Text = Valore1
Else
Valore2 = Valore2 & "3"
RichTextBox1.Text = Valore2
End If
End Sub
Private Sub Button20_Click(sender As Object, e As EventArgs) Handles Button20.Click
If Val2 = 0 Then
Valore1 = Valore1 & "4"
RichTextBox1.Text = Valore1
Else
Valore2 = Valore2 & "4"
RichTextBox1.Text = Valore2
End If
End Sub
Private Sub Button21_Click(sender As Object, e As EventArgs) Handles Button21.Click
If Val2 = 0 Then
Valore1 = Valore1 & "5"
RichTextBox1.Text = Valore1
Else
Valore2 = Valore2 & "5"
RichTextBox1.Text = Valore2
End If
End Sub
Private Sub Button22_Click(sender As Object, e As EventArgs) Handles Button22.Click
If Val2 = 0 Then
Valore1 = Valore1 & "6"
RichTextBox1.Text = Valore1
Else
Valore2 = Valore2 & "6"
RichTextBox1.Text = Valore2
End If
End Sub
Private Sub Button23_Click(sender As Object, e As EventArgs) Handles Button23.Click
If Val2 = 0 Then
Valore1 = Valore1 & "7"
RichTextBox1.Text = Valore1
Else
Valore2 = Valore2 & "7"
RichTextBox1.Text = Valore2
End If
End Sub
Private Sub Button24_Click(sender As Object, e As EventArgs) Handles Button24.Click
If Val2 = 0 Then
Valore1 = Valore1 & "8"
RichTextBox1.Text = Valore1
Else
Valore2 = Valore2 & "8"
RichTextBox1.Text = Valore2
End If
End Sub
Private Sub Button25_Click(sender As Object, e As EventArgs) Handles Button25.Click
If Val2 = 0 Then
Valore1 = Valore1 & "9"
RichTextBox1.Text = Valore1
Else
Valore2 = Valore2 & "9"
RichTextBox1.Text = Valore2
End If
End Sub
Private Sub Button11_Click(sender As Object, e As EventArgs) Handles Button11.Click
If Val2 = 0 Then
Valore1 = Valore1 & ","
RichTextBox1.Text = Valore1
Else
Valore2 = Valore2 & ","
RichTextBox1.Text = Valore2
End If
End Sub
Private Sub Button10_Click(sender As Object, e As EventArgs) Handles Button10.Click
If Val2 = 0 Then
Valore1 = Valore1 & "0"
RichTextBox1.Text = Valore1
Else
Valore2 = Valore2 & "0"
RichTextBox1.Text = Valore2
End If
End Sub
#End Region
#Region "Operazioni"
Private Sub Button26_Click(sender As Object, e As EventArgs) Handles Button26.Click
Op = "+"
Val2 = 1
RichTextBox1.Text = "0"
End Sub
Private Sub Button27_Click(sender As Object, e As EventArgs) Handles Button27.Click
Op = "-"
Val2 = 1
RichTextBox1.Text = "0"
End Sub
Private Sub Button15_Click(sender As Object, e As EventArgs) Handles Button15.Click
Op = "*"
Val2 = 1
RichTextBox1.Text = "0"
End Sub
Private Sub Button16_Click(sender As Object, e As EventArgs) Handles Button16.Click
Op = "/"
Val2 = 1
RichTextBox1.Text = "0"
End Sub
#End Region
Private Sub Button12_Click(sender As Object, e As EventArgs) Handles Button12.Click
If Op <> "" Then
If Op = "+" Then
Totale = Valore1 + Valore2
End If
If Op = "-" Then
Totale = Valore1 - Valore2
End If
If Op = "*" Then
Totale = Valore1 * Valore2
End If
If Op = "/" Then
Totale = Valore1 / Valore2
End If
RichTextBox1.Text = Totale
Valore1 = "0"
Valore2 = "0"
Val2 = 0
Op = 0
End If
End Sub
End Class
