|
Imports System
Imports System.Data
Imports System.Windows.Forms
Imports System.Drawing
Public Class MainClass
Shared Sub Main()
Dim form1 As Form = New Form1
Application.Run(form1)
End Sub
End Class
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles MyBase.Load
clbStudents.Items.Add(New Student("A", "A"), True)
clbStudents.Items.Add(New Student("B", "B"), False)
clbStudents.Items.Add(New Student("C", "C"), _
CheckState.Indeterminate)
End Sub
Private Sub btnListSelections_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnListSelections.Click
Dim checked_items As CheckedListBox.CheckedItemCollection = clbStudents.CheckedItems
Dim txt As String = " Selected Students:" & vbCrLf
For Each item As Object In checked_items
txt &= item.ToString & vbCrLf
Next item
MessageBox.Show(txt)
End Sub
End Class
Public Class Student
Public FirstName As String
Public LastName As String
Public Sub New(ByVal first_name As String, ByVal last_name As String)
FirstName = first_name
LastName = last_name
End Sub
Public Overrides Function ToString() As String
Return FirstName & " " & LastName
End Function
End Class
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Public Class Form1
Inherits System.Windows.Forms.Form
'Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
End If
MyBase.Dispose(disposing)
End Sub
'Required by the Windows Form Designer
Private components As System.ComponentModel.IContainer
'NOTE: The following procedure is required by the Windows Form Designer
'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
<System.Diagnostics.DebuggerStepThrough()> _
Private Sub InitializeComponent()
Me.clbStudents = New System.Windows.Forms.CheckedListBox
Me.btnListSelections = New System.Windows.Forms.Button
Me.SuspendLayout()
'
'clbStudents
'
Me.clbStudents.FormattingEnabled = True
Me.clbStudents.Location = New System.Drawing.Point(8, 8)
Me.clbStudents.Name = "clbStudents"
Me.clbStudents.Size = New System.Drawing.Size(160, 123)
Me.clbStudents.TabIndex = 0
'
'btnListSelections
'
Me.btnListSelections.Location = New System.Drawing.Point(8, 152)
Me.btnListSelections.Name = "btnListSelections"
Me.btnListSelections.Size = New System.Drawing.Size(160, 23)
Me.btnListSelections.TabIndex = 1
Me.btnListSelections.Text = "List Selections"
'
'Form1
'
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(180, 187)
Me.Controls.Add(Me.btnListSelections)
Me.Controls.Add(Me.clbStudents)
Me.Name = "Form1"
Me.Text = "UseCheckedListBox"
Me.ResumeLayout(False)
End Sub
Friend WithEvents clbStudents As System.Windows.Forms.CheckedListBox
Friend WithEvents btnListSelections As System.Windows.Forms.Button
End Class
|
