Public Class Form1
Dim isitex(4) As String
Dim Item As ListViewItem
Sub isi()
ComboBox1.Items.Add("Teknik Informatika")
ComboBox1.Items.Add("Sistem Informatika")
ComboBox1.Items.Add("Komputer akutansi")
ComboBox1.Items.Add("Manajemen Informatika")
ComboBox1.Items.Add("Teknik Komputer")
End Sub

Private Sub Form1_Activated(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Activated
Call isi()
Call Tabel()
End Sub

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Call hapus()
End Sub
Sub hapus()
TextBox1.Text = ""
TextBox2.Text = ""
TextBox3.Text = ""
ComboBox1.Text = "Teknik Informatika"
End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If Button1.Text = "Tambah" Then
Button1.Text = "Simpan"
Button2.Enabled = False
Button3.Enabled = False
Button4.Text = "Batal"
TextBox1.Focus()
ElseIf Button1.Text = "Simpan" Then
isitex(0) = Trim(TextBox1.Text)
isitex(1) = Trim(TextBox2.Text)
isitex(2) = Trim(TextBox3.Text)
isitex(3) = Microsoft.VisualBasic.Left(Trim(ComboBox1.Text), 100)
Item = New ListViewItem(isitex)
ListView1.Items.Add(Item)
End If
Button1.Focus()
End Sub
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
If Button4.Text = "Batal" Then
Button1.Text = "Tambah"
Button1.Enabled = True
Button2.Text = "Edit"
Button2.Enabled = True
Button3.Text = "Hapus"
Button3.Enabled = True
Button4.Text = "Keluar"
TextBox1.Focus()
Else
Button4.Text = "Keluar"
Me.Close()
End If
End Sub
Sub Tabel()
ListView1.View = View.Details
ListView1.Columns.Add("NPM", 100, HorizontalAlignment.Center)
ListView1.Columns.Add("Nama", 100, HorizontalAlignment.Left)
ListView1.Columns.Add("Alamat", 100, HorizontalAlignment.Left)
ListView1.Columns.Add("Jurusan", 100, HorizontalAlignment.Left)
End Sub
Private Sub ListView1_ItemSelectionChanged(ByVal sender As Object, ByVal e As System.Windows.Forms.ListViewItemSelectionChangedEventArgs) Handles ListView1.ItemSelectionChanged
TextBox1.Text = e.Item.Text
End Sub

Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
If e.KeyChar = Chr(13) Then
TextBox2.Focus()
End If
End Sub

Private Sub TextBox2_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox2.KeyPress
If e.KeyChar = Chr(13) Then
TextBox3.Focus()
End If
End Sub

Private Sub TextBox3_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox3.KeyPress
If e.KeyChar = Chr(13) Then
ComboBox1.Focus()
End If
End Sub

Private Sub ComboBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles ComboBox1.KeyPress
If e.KeyChar = Chr(13) Then
Button1.Focus()
End If
End Sub

Private Sub Button1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles Button1.KeyPress

End Sub

Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged

End Sub
End Class