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Kasus 1 sampai 3 (Tipe data dan Variabel) pada Visual Basic .NET


Kasus 1 (Tipe Data dan Variabel)

Berikut Source Codenya :

Public Class kasus1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim nik, nama, jabatan, alamat As String
        nik = TextBox1.Text
        nama = TextBox2.Text
        jabatan = ComboBox1.Text
        alamat = TextBox3.Text
        'nadiahtami 2017230007'
        TextBox4.Text = nik
        TextBox5.Text = nama
        TextBox6.Text = jabatan
        TextBox7.Text = alamat
    End Sub
    Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
        If Not ((e.KeyChar >= "0" And e.KeyChar <= "9") Or e.KeyChar = vbBack) Then e.Handled = True 'hanya bisa menginput angka
    End Sub
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        TextBox1.Text = ""
        TextBox2.Text = ""
        TextBox3.Text = ""
        TextBox4.Text = ""
        TextBox5.Text = ""
        TextBox6.Text = ""
        TextBox7.Text = ""
        ComboBox1.Text = ""
    End Sub
    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        Dim pesan As String
        pesan = MsgBox("Yakin Ingin Keluar ??", vbYesNo, "Konfirmasi")
        If pesan = vbYes Then
            Close()
            End
        End If
    End Sub
End Class
Kasus 2 (Tipe Data dan Variabel)

Berikut Source Codenya :

Public Class kasus2
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim kode, nama, isbn, kategori, harga As String
        kode = TextBox1.Text
        nama = TextBox2.Text
        isbn = TextBox3.Text
        kategori = ComboBox1.Text
        harga = TextBox4.Text
        'nadiahtami 201723007'
        TextBox5.Text = kode
        TextBox6.Text = nama
        TextBox7.Text = isbn
        TextBox8.Text = kategori
        TextBox9.Text = harga
    End Sub
    Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
        If Not ((e.KeyChar >= "0" And e.KeyChar <= "9") Or e.KeyChar = vbBack) Then e.Handled = True 'hanya bisa menginput angka
        If (e.KeyChar = Chr(13)) Then
            TextBox2.Focus()
        End If
    End Sub
    Private Sub TextBox4_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox4.KeyPress
        If Not ((e.KeyChar >= "0" And e.KeyChar <= "9") Or e.KeyChar = vbBack) Then e.Handled = True
    End Sub
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        TextBox1.Text = ""
        TextBox2.Text = ""
        TextBox3.Text = ""
        TextBox4.Text = ""
        TextBox5.Text = ""
        TextBox6.Text = ""
        TextBox7.Text = ""
        TextBox8.Text = ""
        TextBox9.Text = ""
        ComboBox1.Text = ""
    End Sub
    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        Dim pesan As String
        pesan = MsgBox("Yakin Ingin Keluar ??", vbYesNo, "Konfirmasi")
        If pesan = vbYes Then
            Close()
            End
        End If
    End Sub
End Class

Kasus 3 (Tipe Data dan Variabel)



Berikut Source Codenya :

 Public Class kasus3
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim nim, nama, jk, jurusan, alamat As String
        nim = TextBox1.Text
        nama = TextBox2.Text
        jk = ComboBox1.Text
        jurusan = ComboBox2.Text
        alamat = TextBox3.Text
        'nadiahtami 201723007'
        TextBox4.Text = nim
        TextBox5.Text = nama
        TextBox6.Text = jk
        TextBox7.Text = jurusan
        TextBox8.Text = alamat
    End Sub
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        TextBox1.Text = ""
        TextBox2.Text = ""
        TextBox3.Text = ""
        TextBox4.Text = ""
        TextBox5.Text = ""
        TextBox6.Text = ""
        TextBox7.Text = ""
        TextBox8.Text = ""
        ComboBox1.Text = ""
        ComboBox2.Text = ""
    End Sub
    Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
        If Not ((e.KeyChar >= "0" And e.KeyChar <= "9") Or e.KeyChar = vbBack) Then e.Handled = True 'hanya bisa menginput angka
        If (e.KeyChar = Chr(13)) Then
            TextBox2.Focus()
        End If
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        Dim pesan As String
        pesan = MsgBox("Yakin Ingin Keluar ??", vbYesNo, "Konfirmasi")
        If pesan = vbYes Then
            Close()
            End
        End If
    End Sub

End Class

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