C# KOD ÖRNEKLERİ: HESAP MAKİNASI PROJE ÖRNEĞİ

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Hesap Makinası Kod Örneği Skinli 5.12.2016 İNDİR

Hesap Makinası (Kod) İNDİR

Imports System.Math

Public Class Form1

#Region "   FORM  DEĞİŞKENLERİ.."

Dim Sayi1, Sayi2, SayiX, xHafiza As Double
    Dim yOperatorTiklaninca, yKareKokTiklaninca, ySayiSilTiklaninca, bTamam, bQTamam As Boolean
    Dim sOperator, sGonderilenOperator, sGonderilenSayi As String 'operator=işlem işareti,"*,+,-,/ vb.."

#End Region

#Region "   FORM  TAŞIMA  İŞLEMLERİ..."
    Const i As Integer = &HA1
    Const j As Integer = 2

Private Sub Form1_MouseDown(sender As System.Object, e As System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseDown
        If e.Button = Windows.Forms.MouseButtons.Left Then
            Me.Capture = False
            Dim msg As Message = Message.Create(Me.Handle, i, New IntPtr(j), IntPtr.Zero)
            Me.DefWndProc(msg)
        End If
    End Sub
#End Region

#Region "   FORM  OLAYLARI..(Load,Close,Keypress, KeyDown).. "

Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load

Me.ChkHepUstte.Checked = GetSetting("HM", "Ayarlar", "Hepüstte", True)

LblHafizadakiSayi.Visible = False 'Memory
        btnHafizaYenile.Enabled = False 'Memory Restore

LblGirilenSayi.Text = "0"

txtFocus.Select()
    End Sub

Private Sub KapatPic_Click(sender As System.Object, e As System.EventArgs) Handles KapatPic.Click
        SaveSetting("HM", "Ayarlar", "Hepüstte", Me.ChkHepUstte.Checked)
        Me.Close()
    End Sub

Private Sub Form1_FormClosed(sender As Object, e As System.Windows.Forms.FormClosedEventArgs) Handles Me.FormClosed
        End
    End Sub

Private Sub Form1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) _
       Handles MyBase.KeyPress

Dim Sayisal As Char

Select Case e.KeyChar

' Sayısal Tuşlarla giriş
            Case Convert.ToChar(48) To Convert.ToChar(57)
                Sayisal = e.KeyChar
                bTamam = True
                Call GonSayilarin_islemSonucu(Sayisal)

'  GERİAL, ve ONDALIK NOKTASI EŞİTTİR 
            Case Convert.ToChar(8)
                GeriAl()
            Case ControlChars.CrLf
                sOperator = "Eşittir"
            Case Convert.ToChar(46)
                Call OndalikNokta()

'   OPERATORLER 
            Case Convert.ToChar(43) '+ Tıklandığında
                sGonderilenOperator = "+"
                Call OperatorSecimi()
            Case Convert.ToChar(45) '- Tıklandığında
                sGonderilenOperator = "-"
                Call OperatorSecimi()
            Case Convert.ToChar(42) '* Tıklandığında
                sGonderilenOperator = "*"
                Call OperatorSecimi()
            Case Convert.ToChar(47) '/ Tıklandığında
                sGonderilenOperator = "/"
                Call OperatorSecimi()

' OPERATÖRLERE AYRI YÜZDE ORANI TUT
            Case Convert.ToChar(37) ' % Tıklandığında
                Sayi2 = CDbl(LblGirilenSayi.Text)
                LblGirilenSayi.Text = (Sayi1 * Sayi2) / 100
                LblKaydedilenSayi.Text = Sayi2 & "% de " & Sayi1 & " ifadesi"

End Select

txtFocus.Select()

End Sub

Private Sub Form1_KeyDown(sender As System.Object, e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
        If (e.KeyCode = Keys.Delete) Then
            btnTumSil.PerformClick()
        End If
        If (e.KeyCode = Keys.Back) Then
            btnTumSil.PerformClick()
        End If
        If (e.KeyCode = Keys.M) Then
            btnHafizaSil.PerformClick()
        End If
    End Sub

#End Region

#Region "   BUTON  OLAYLARI.."

Private Sub LblHafizadakiSayi_Click(sender As System.Object, e As System.EventArgs) Handles LblHafizadakiSayi.Click
        btnHafizaYenile.PerformClick()
    End Sub

Private Sub btnHafizaSil_Click(sender As Object, e As EventArgs) Handles btnHafizaSil.Click, btnHafizadanEksilt.Click, _
                btnHafizayaEkle.Click, btnHafizaYenile.Click, btnHafizayaAl.Click

Dim sGonder As String = sender.text

Select Case sGonder
            Case "MC"
                xHafiza = 0
                btnHafizaYenile.Enabled = False
                btnHafizayaAl.BackColor = SystemColors.ButtonFace
                LblHafizadakiSayi.Visible = False
            Case "M-"
                Try
                    xHafiza = xHafiza - Val(LblGirilenSayi.Text)

If xHafiza = 0 Then
                        btnHafizaYenile.Enabled = False
                        btnHafizayaAl.BackColor = SystemColors.GradientInactiveCaption
                        LblHafizadakiSayi.Visible = False
                    End If
                    LblHafizadakiSayi.Text = "M " & "(" & xHafiza & ")"

If LblHafizadakiSayi.Visible = False Or xHafiza < 0 Then
                        btnHafizayaAl.BackColor = SystemColors.ButtonFace
                    End If
                Catch ex As Exception
                    MessageBox.Show(ex.Message, "Hata Oluştu", MessageBoxButtons.OK, _
                                    MessageBoxIcon.Warning)
                End Try

Case "M+"
                If xHafiza = 0 Then
                    MessageBox.Show("Bellekte sayı Yok. Artırma işlemi Yapılamaz!", "Bellekte sayı Yok", MessageBoxButtons.OK, _
                                    MessageBoxIcon.Information)
                Else
                    xHafiza = xHafiza + Val(LblGirilenSayi.Text)
                    If xHafiza = 0 Then
                        btnHafizayaAl.BackColor = SystemColors.ButtonFace
                    Else
                        btnHafizayaAl.BackColor = SystemColors.GradientInactiveCaption
                    End If
                    LblHafizadakiSayi.Text = "M " & "(" & xHafiza & ")"
                End If

Case "MR"
                LblGirilenSayi.Text = xHafiza
            Case "MS"
                xHafiza = Val(LblGirilenSayi.Text)

If xHafiza = 0 Then
                    MessageBox.Show("Hafızaya Alınacak Sayı Giriniz.", "Bellek Sıfır?", MessageBoxButtons.OK, MessageBoxIcon.Error)
                    txtFocus.Select()
                    Exit Sub
                End If

btnHafizaYenile.Enabled = True
                LblHafizadakiSayi.Visible = True
                If xHafiza = 0 Then
                    btnHafizayaAl.BackColor = SystemColors.ButtonFace
                Else
                    btnHafizayaAl.BackColor = SystemColors.GradientInactiveCaption
                End If
                LblHafizadakiSayi.Text = "M " & "(" & xHafiza & ")"
        End Select

txtFocus.Select()

End Sub

Private Sub btnGeriAl_Click(sender As Object, e As EventArgs) Handles btnGeriAl.Click

Call GeriAl()
        txtFocus.Select()

End Sub

Private Sub GeriAl()

Dim Uzunluk As Integer = Len(LblGirilenSayi.Text)

If Len(Uzunluk) > 1 Then
            Uzunluk -= 1
            LblGirilenSayi.Text = Mid(LblGirilenSayi.Text, 1, Uzunluk)
        Else
            If Len(LblGirilenSayi.Text) = 1 Then
                LblGirilenSayi.Text = "0"
            End If
        End If

If LblGirilenSayi.Text = "" Then
            LblGirilenSayi.Text = "0"
            LblKaydedilenSayi.Text = ""
            bQTamam = False
        End If

End Sub

Private Sub TumunuSil()
        LblGirilenSayi.Text = "0"
        LblKaydedilenSayi.Text = ""

Sayi1 = 0
        Sayi2 = 0
        SayiX = 0

sOperator = ""
        yOperatorTiklaninca = False
        yKareKokTiklaninca = False
        ySayiSilTiklaninca = False
        bQTamam = False

End Sub

Private Sub btnTumunuSil_Click(sender As Object, e As EventArgs) Handles btnTumSil.Click
        Call TumunuSil()
        LblGirilenSayi.ForeColor = Color.Black
        txtFocus.Select()
    End Sub

Private Sub btnAlanSil_Click(sender As Object, e As EventArgs) Handles btnAlanSil.Click
        LblGirilenSayi.Text = "0"
        LblKaydedilenSayi.Text = ""
        bQTamam = False
        LblGirilenSayi.ForeColor = Color.Black

txtFocus.Select()
    End Sub

Private Sub btnNokta_Click(sender As Object, e As EventArgs) Handles btnNokta.Click

Call OndalikNokta()

txtFocus.Select()

End Sub

Private Sub btn0_Click(sender As Object, e As EventArgs) Handles btn0.Click, btn1.Click, btn2.Click, btn3.Click, _
                btn4.Click, btn5.Click, btn6.Click, btn7.Click, btn8.Click, btn9.Click

sGonderilenSayi = sender.text
        bTamam = True ' Tıklayarak Operatör anahtarları tekrar tekrar durdurmak için

Call GonSayilarin_islemSonucu(sGonderilenSayi)

txtFocus.Select()

End Sub

Private Sub OndalikNokta()
        If yOperatorTiklaninca = True Then
            LblGirilenSayi.Text = ""
            LblGirilenSayi.Text = "0."
            yOperatorTiklaninca = False
        End If

If LblGirilenSayi.Text = "0" Then
            If InStr(LblGirilenSayi.Text, ".") Then
                Exit Sub
            Else
                LblGirilenSayi.Text = "0."
            End If
        End If

If InStr(LblGirilenSayi.Text, ".") Then
            Exit Sub
        Else
            LblGirilenSayi.Text &= "."
        End If

End Sub

Private Sub btnArti_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnArti.Click, _
               btnEksi.Click, btnCarp.Click, btnBol.Click

sGonderilenOperator = sender.text
        Call OperatorSecimi()
    End Sub

Private Sub GonSayilarin_islemSonucu(GonSayi As String)

Try
            bQTamam = False
            If yOperatorTiklaninca = True Then LblGirilenSayi.Text = ""

If LblGirilenSayi.Text = "0" Then LblGirilenSayi.Text = ""

LblGirilenSayi.Text &= GonSayi

yOperatorTiklaninca = False

Catch ex As Exception
            MessageBox.Show(ex.Message, "Hata Oluştu..", MessageBoxButtons.OK, MessageBoxIcon.Warning)
        End Try

End Sub

Private Sub OperatorSecimi()

Try
            bQTamam = False
            If bTamam = True Then ' Tekrar tekrar tuşlara dokunarak o sinir bozucu işlemi durdurmak için
                bTamam = False
                If LblGirilenSayi.Text.Length <> 0 Then
                    If sOperator = "" Then
                        Sayi1 = CDbl(LblGirilenSayi.Text)
                    Else
                        HesapToplami()
                    End If

yOperatorTiklaninca = True

Select Case sGonderilenOperator
                        Case "+"
                            sOperator = "Ekle"
                            LblKaydedilenSayi.Text = LblGirilenSayi.Text & "+"
                        Case "-"
                            sOperator = "Çıkar"
                            LblKaydedilenSayi.Text = LblGirilenSayi.Text & "-"
                        Case "*"
                            sOperator = "Çarp"
                            LblKaydedilenSayi.Text = LblGirilenSayi.Text & "*"
                        Case "/"
                            sOperator = "Böl"
                            LblKaydedilenSayi.Text = LblGirilenSayi.Text & "/"
                    End Select

End If
            End If

Catch ex As Exception
            MessageBox.Show(ex.Message, "Hata Oluştu..", MessageBoxButtons.OK, MessageBoxIcon.Warning)
        End Try

End Sub

Private Sub HesapToplami()

Try

Sayi2 = CDbl(LblGirilenSayi.Text)
            Select Case sOperator
                Case "Ekle"
                    Sayi1 = Sayi1 + Sayi2
                Case "Çıkar"
                    Sayi1 = Sayi1 - Sayi2
                Case "Böl"
                    Sayi1 = Sayi1 / Sayi2
                Case "Çarp"
                    Sayi1 = Sayi1 * Sayi2
            End Select
            LblGirilenSayi.Text = CStr(Sayi1)

Catch ex As Exception
            MessageBox.Show(ex.Message, "Hata Oluştu..", MessageBoxButtons.OK, MessageBoxIcon.Warning)
        End Try

End Sub

Private Sub btnEsittir_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEsittir.Click, btnYuzde.Click
        Try

If bQTamam = True Then Exit Sub
            bQTamam = True

Select Case sender.text
                Case "="
                    If LblGirilenSayi.Text.Length <> 0 AndAlso Sayi1 <> 0 Then
                        HesapToplami()
                        LblGirilenSayi.ForeColor = Color.Blue
                        LblKaydedilenSayi.Text = ""
                    End If

Case "%"

Sayi2 = CDbl(LblGirilenSayi.Text)
                    If Sayi2 = 0 Then Exit Sub
                    'Girilen (sayi2) NOKTALI SAYI İSE (Sayi2 / 100) yap

If InStr(LblGirilenSayi.Text, ".") Then Sayi2 = Sayi2 / 100
                    LblGirilenSayi.Text = (Sayi1 * Sayi2) / 100

LblKaydedilenSayi.Text = Sayi1 & "*" & Sayi2 & "/100=" & LblGirilenSayi.Text
            End Select

sOperator = String.Empty

Catch ex As Exception
            MessageBox.Show(ex.Message, "Hata Oluştu..", MessageBoxButtons.OK, MessageBoxIcon.Warning)
        End Try

txtFocus.Select()

End Sub

Private Sub btn1BoluX_Click(sender As Object, e As EventArgs) Handles btn1BoluX.Click
        'Bir sayısının herhangi bir sayıya bölümü
        Try
            If ySayiSilTiklaninca = True Then
                Call TumunuSil()
            Else
                Sayi1 = CDbl(LblGirilenSayi.Text)
                If Sayi1 = 0 Then LblKaydedilenSayi.Text = Sayi1 & " Sıfıra Bölünemez.." : Exit Sub
                LblGirilenSayi.Text = (1 / Sayi1)
                LblKaydedilenSayi.Text = 1 & "/" & Sayi1 & " = "

ySayiSilTiklaninca = False
            End If

Catch ex As Exception
            MessageBox.Show(ex.Message, "Hata oluştu", MessageBoxButtons.OK, MessageBoxIcon.Warning)
        End Try

txtFocus.Select()

End Sub

Private Sub btnKareKoku_Click(sender As Object, e As EventArgs) Handles btnKareKoku.Click

If yKareKokTiklaninca = True Then
            Call TumunuSil()
        Else

Sayi1 = CDbl(LblGirilenSayi.Text)
            If Sayi1 = 0 Then Exit Sub
            LblGirilenSayi.Text = (Sqrt(Sayi1))

LblKaydedilenSayi.Text = "sqrt(" & (Sayi1) & ")"

yKareKokTiklaninca = True
        End If

txtFocus.Select()

End Sub

Private Sub txtFocus_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtFocus.KeyPress

Form1_KeyPress(sender, e)
    End Sub

Private Sub btnArtiEksi_Click(sender As Object, e As EventArgs) Handles btnArtiEksi.Click

SayiX = CDbl(LblGirilenSayi.Text)

If Not InStr(LblGirilenSayi.Text, "-") Then
            SayiX = (SayiX) * -1
            LblGirilenSayi.Text = CStr(SayiX)
        Else
            SayiX = Abs(SayiX)
            LblGirilenSayi.Text = CStr(SayiX)
        End If

txtFocus.Select()

End Sub

#End Region

#Region "   BUTON  TOOLTIP OLAYLARI.."

Private Sub btnHafizaSil_MouseHover(sender As System.Object, e As System.EventArgs) Handles btnHafizaSil.MouseHover
        Dim tooltip As New ToolTip()
        tooltip.SetToolTip(btnHafizaSil, "Hafızayı Sil - (Memory Clear)")
    End Sub

Private Sub btnHafizaYenile_MouseHover(sender As System.Object, e As System.EventArgs) Handles btnHafizaYenile.MouseHover
        Dim tooltip As New ToolTip()
        tooltip.SetToolTip(btnHafizaYenile, "Hafızayı Göster - (Memory Restore) " & (xHafiza))
    End Sub

Private Sub btnHafizayaAl_MouseHover(sender As System.Object, e As System.EventArgs) Handles btnHafizayaAl.MouseHover
        Dim tooltip As New ToolTip()
        tooltip.SetToolTip(btnHafizayaAl, "Hafızaya Al - (Memory Send)")
    End Sub

Private Sub btnHafizayaEkle_MouseHover(sender As System.Object, e As System.EventArgs) Handles btnHafizayaEkle.MouseHover
        Dim tooltip As New ToolTip()
        tooltip.SetToolTip(btnHafizayaEkle, "Hafızaya Ekle - (M+)")
    End Sub

Private Sub btnHafizadanEksilt_MouseHover(sender As System.Object, e As System.EventArgs) Handles btnHafizadanEksilt.MouseHover
        Dim tooltip As New ToolTip()
        tooltip.SetToolTip(btnHafizadanEksilt, "Hafızadan Eksilt - (M-)")
    End Sub

Private Sub LblHafizadakiSayi_MouseHover(sender As System.Object, e As System.EventArgs) Handles LblHafizadakiSayi.MouseHover
        Dim tooltip As New ToolTip()
        tooltip.SetToolTip(LblHafizadakiSayi, "Hafızayı Göster - (Memory Restore) " & (xHafiza))
    End Sub
#End Region

#Region "  KAPAT BUTONU ve MİNİMİZE  OLAYLARI.."

Private Sub KapatPic_MouseLeave(sender As System.Object, e As System.EventArgs) Handles KapatPic.MouseLeave
        KapatPic.Image = imList.Images("KapatHM.png")
    End Sub

Private Sub KapatPic_MouseMove(sender As System.Object, e As System.Windows.Forms.MouseEventArgs) Handles KapatPic.MouseMove
        KapatPic.Image = imList.Images("KapatHM_R.png")
    End Sub

Private Sub PicMinimize_MouseMove(sender As System.Object, e As System.Windows.Forms.MouseEventArgs) Handles PicMinimize.MouseMove
        PicMinimize.Image = imList.Images("Minimize_R.png")
    End Sub

Private Sub PicMinimize_MouseLeave(sender As System.Object, e As System.EventArgs) Handles PicMinimize.MouseLeave
        PicMinimize.Image = imList.Images("Minimize.png")
    End Sub

#End Region

#Region "  FORM ÜSTTE ( Topmost ) OLAYI.."

Private Sub ChkHepUstte_CheckedChanged(sender As System.Object, e As System.EventArgs) Handles ChkHepUstte.CheckedChanged
        If Me.TopMost = True Then
            Me.TopMost = False
            ChkHepUstte.Text = "Üstte Değil"
        Else
            Me.TopMost = True
            ChkHepUstte.Text = "Hep Üstte"
        End If
        txtFocus.Select()
    End Sub

Private Sub PictureBox1_Click(sender As System.Object, e As System.EventArgs) Handles PicMinimize.Click
        If Me.WindowState = FormWindowState.Normal Then
            Me.WindowState = FormWindowState.Minimized
        End If

End Sub
#End Region

Private Sub LblGirilenSayi_MouseLeave(sender As System.Object, e As System.EventArgs) Handles LblGirilenSayi.MouseLeave
        Dim tooltip As New ToolTip()
        tooltip.SetToolTip(LblGirilenSayi, LblGirilenSayi.Text)
    End Sub
End Class

16 Ağustos 2014 Cumartesi

HESAP MAKİNASI PROJE ÖRNEĞİ