Get selected item in a ListBox selection event : ListBox « GUI « VB.Net Tutorial






Get selected item in a ListBox selection event
Imports System.Windows.Forms

public class GetSelectedItemListBox
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class

Public Class Form1
    Inherits System.Windows.Forms.Form

    Public Sub New()
        MyBase.New()

        InitializeComponent()

    End Sub

    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    Private components As System.ComponentModel.IContainer

    Friend WithEvents ListBox1 As System.Windows.Forms.ListBox
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.ListBox1 = New System.Windows.Forms.ListBox
        Me.Label1 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.SuspendLayout()
        '
        'ListBox1
        '
        Me.ListBox1.Items.AddRange(New Object() {"A", "B", "C", "D", "E", "F", "G"})
        Me.ListBox1.Location = New System.Drawing.Point(72, 48)
        Me.ListBox1.Name = "ListBox1"
        Me.ListBox1.Size = New System.Drawing.Size(88, 108)
        Me.ListBox1.TabIndex = 0
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(8, 16)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(136, 24)
        Me.Label1.TabIndex = 1
        Me.Label1.Text = "Translate:"
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(56, 176)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(128, 40)
        Me.Label2.TabIndex = 2
        Me.Label2.Text = "Chn:"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(224, 246)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label1)
        Me.Controls.Add(Me.ListBox1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub

    Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged

    End Sub

    Private Sub ListBox1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.Click
        Select Case ListBox1.SelectedIndex
            Case 0
                Label2.Text = "AA"
            Case 1
                Label2.Text = "BB"
            Case 2
                Label2.Text = "CC"
            Case 3
                Label2.Text = "DD"
            Case 4
                Label2.Text = "EE"
            Case 5
                Label2.Text = "FF"
            Case 6
                Label2.Text = "GG"
        End Select
    End Sub
End Class








14.13.ListBox
14.13.1.Add value to ListBoxAdd value to ListBox
14.13.2.Add, remove and clear list box itemsAdd, remove and clear list box items
14.13.3.Use popup menu to add and delete ListBox itemUse popup menu to add and delete ListBox item
14.13.4.ListBox selection eventListBox selection event
14.13.5.Multiple SelectionsMultiple Selections
14.13.6.Get selected Items in a ListBoxGet selected Items in a ListBox
14.13.7.Set selected item in a ListBoxSet selected item in a ListBox
14.13.8.Get selected indices in a ListBox
14.13.9.Get selected item in a ListBox selection eventGet selected item in a ListBox selection event
14.13.10.Owner draw ListBoxOwner draw ListBox
14.13.11.Owner draw ListBox fixedOwner draw ListBox fixed
14.13.12.ListBox double click eventListBox double click event
14.13.13.MultiColumn ListBoxMultiColumn ListBox
14.13.14.Get mouse over index by mouse locationGet mouse over index by mouse location