ListBox.MeasureItem : ListBox « System.Windows.Forms « VB.Net by API

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VB.Net
VB.Net Tutorial
VB.Net by API » System.Windows.Forms » ListBox 
ListBox.MeasureItem
  

Imports System
Imports System.Drawing
Imports System.Windows.Forms


Public Class MainClass


   Public Shared Sub Main()
         Application.Run(New OwnerDrawnVariableListBox())
   End Sub
   
   
End Class

Public Class OwnerDrawnVariableListBox
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is NothingThen
                components.Dispose()
            End If
        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.
    Friend WithEvents listBox2 As System.Windows.Forms.ListBox
    <System.Diagnostics.DebuggerStepThrough()Private Sub InitializeComponent()
        Me.listBox2 = New System.Windows.Forms.ListBox()
        Me.SuspendLayout()
        '
        'listBox2
        '
        Me.listBox2.DrawMode = System.Windows.Forms.DrawMode.OwnerDrawVariable
        Me.listBox2.Items.AddRange(New Object() {"A""a""B"})
        Me.listBox2.Location = New System.Drawing.Point(615)
        Me.listBox2.Name = "listBox2"
        Me.listBox2.Size = New System.Drawing.Size(280192)
        Me.listBox2.TabIndex = 5
        '
        'OwnerDrawnVariableListBox
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(513)
        Me.ClientSize = New System.Drawing.Size(292222)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.listBox2})
        Me.Name = "OwnerDrawnVariableListBox"
        Me.Text = "OwnerDrawnVariableListBox"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub listBox2_DrawItem(ByVal sender As Object, ByVal e As System.Windows.Forms.DrawItemEventArgsHandles listBox2.DrawItem
        e.DrawBackground()

        Dim textFont As Font
        textFont = New Font(e.Font.FontFamily, e.Font.Size * 2)

        e.Graphics.DrawString(listBox2.Items(e.Index).ToString(), _
                                textFont, _
                                New SolidBrush(e.ForeColor), _
                                e.Bounds.X, e.Bounds.Y)

        e.DrawFocusRectangle()
    End Sub

    Private Sub listBox2_MeasureItem(ByVal sender As Object, ByVal e As System.Windows.Forms.MeasureItemEventArgsHandles listBox2.MeasureItem
        If e.Index Mod Then e.ItemHeight *= 2
    End Sub
End Class

   
    
  
Related examples in the same category
1.ListBox.DataSource
2.ListBox.DisplayMember
3.ListBox.DoDragDrop
4.ListBox.DoubleClick
5.ListBox.DragDrop
6.ListBox.DragEnter
7.ListBox.DragLeave
8.ListBox.DragOver
9.ListBox.DrawMode
10.ListBox.IndexFromPoint
11.ListBox.ItemHeight
12.ListBox.Items.Add
13.ListBox.Items.Clear()
14.ListBox.Items.Remove
15.ListBox.Items.RemoveAt
16.ListBox.MouseDown
17.ListBox.PointToClient
18.ListBox.SelectedIndexChanged
19.ListBox.SelectedIndices
20.ListBox.SelectionMode
21.ListBox.SetSelected
22.ListBox.TopIndex
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