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VB.Net Tutorial » GUI » ListView 
14.15.11.Runtime ListView
Runtime ListView
'Visual Basic 2005 Programmer's Reference
'by Rod Stephens (Author

'# Publisher: Wrox (October 212005)
'# Language: English
'# ISBN-100764571982
'# ISBN-13978-0764571985


Imports System.Windows.Forms


public class ListViewRunTime
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
Public Class Form1
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgsHandles MyBase.Load
        ' Make the ListView column headers.
        ListViewMakeColumnHeaders(lvwBooks, _
            "Title", HorizontalAlignment.Left, 120, _
            "URL", HorizontalAlignment.Left, 120, _
            "ISBN", HorizontalAlignment.Left, 90, _
            "Picture", HorizontalAlignment.Left, 120, _
            "Pages", HorizontalAlignment.Right, 50, _
            "Year", HorizontalAlignment.Right, 40)

        ListViewMakeRow(lvwBooks, 0, _
            "Visual Basic and XML", _
            "http://www.vb-helper.com/xml.htm", _
            "0-471-12060-X", _
            "http://www.vb-helper.com/xml.jpg", _
            "503", _
            "2002")
        ListViewMakeRow(lvwBooks, 0, _
            "Visual Basic Graphics Programming, 2e", _
            "http://www.vb-helper.com/vbgp.htm", _
            "0-471-35599-2", _
            "http://www.vb-helper.com/vbgp.jpg", _
            "712", _
            "2000")
        ListViewMakeRow(lvwBooks, 0, _
            "Ready-to-Run Visual Basic Algorithms", _
            "http://www.vb-helper.com/vba.htm", _
            "0-471-24268-3", _
            "http://www.vb-helper.com/vba.jpg", _
            "395", _
            "1998")

        ListViewSizeColumns(lvwBooks, True)
        Text = "RunTimeListView (" & lvwBooks.View.ToString & ")"
        lvwBooks.View = View.Details
        CheckMenus()
    End Sub

    ' Make the ListView's column headers.
    ' The ParamArray entries should be triples holding
    ' column title, HorizontalAlignment value, and width.
    Private Sub ListViewMakeColumnHeaders(ByVal lvw As ListView, ByVal ParamArray header_info() As Object)
        ' Remove any existing headers.
        lvw.Columns.Clear()

        ' Make the column headers.
        For i As Integer = header_info.GetLowerBound(0To header_info.GetUpperBound(0Step 3
            Dim col_header As ColumnHeader = lvw.Columns.Add_
                DirectCast(header_info(i), String), _
                -1, _
                DirectCast(header_info(i + 1), HorizontalAlignment))
            col_header.Width = DirectCast(header_info(i + 2), Integer)
        Next i
    End Sub

    ' Make a ListView row.
    Private Sub ListViewMakeRow(ByVal lvw As ListView, ByVal image_index As Integer, ByVal item_title As String, ByVal ParamArray subitem_titles() As String)
        ' Make the item.
        Dim new_item As ListViewItem = lvw.Items.Add(item_title)
        new_item.ImageIndex = image_index

        ' Make the sub-items.
        For i As Integer = subitem_titles.GetLowerBound(0To subitem_titles.GetUpperBound(0)
            new_item.SubItems.Add(subitem_titles(i))
        Next i
    End Sub

    ' Set column widths to -to fit data,
    ' -to fit data and header.
    Private Sub ListViewSizeColumns(ByVal lvw As ListView, ByVal allow_room_for_header As Boolean)
        Dim new_wid As Integer = -1
        If allow_room_for_header Then new_wid = -2

        ' Set the width for each column.
        For i As Integer = To lvw.Columns.Count - 1
            lvw.Columns(i).Width = new_wid
        Next i
    End Sub

    Private Sub mnuViewDetails_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles mnuViewDetails.Click
        lvwBooks.View = View.Details
        Text = "RunTimeListView (" & lvwBooks.View.ToString & ")"
        CheckMenus()
    End Sub

    Private Sub mnuViewLargeIcons_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles mnuViewLargeIcons.Click
        lvwBooks.View = View.LargeIcon
        Text = "RunTimeListView (" & lvwBooks.View.ToString & ")"
        CheckMenus()
    End Sub

    Private Sub mnuViewList_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles mnuViewList.Click
        lvwBooks.View = View.List
        Text = "RunTimeListView (" & lvwBooks.View.ToString & ")"
        CheckMenus()
    End Sub

    Private Sub mnuViewSmallIcons_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles mnuViewSmallIcons.Click
        lvwBooks.View = View.SmallIcon
        Text = "RunTimeListView (" & lvwBooks.View.ToString & ")"
        CheckMenus()
    End Sub

    Private Sub mnuViewTile_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles mnuViewTile.Click
        lvwBooks.View = View.Tile
        Text = "RunTimeListView (" & lvwBooks.View.ToString & ")"
        CheckMenus()
    End Sub

    Private Sub CheckMenus()
        mnuViewDetails.Checked = (lvwBooks.View = View.Details)
        mnuViewLargeIcons.Checked = (lvwBooks.View = View.LargeIcon)
        mnuViewList.Checked = (lvwBooks.View = View.List)
        mnuViewSmallIcons.Checked = (lvwBooks.View = View.SmallIcon)
        mnuViewTile.Checked = (lvwBooks.View = View.Tile)
    End Sub
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.components = New System.ComponentModel.Container
        Me.MenuStrip1 = New System.Windows.Forms.MenuStrip
        Me.ViewToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.mnuViewDetails = New System.Windows.Forms.ToolStripMenuItem
        Me.mnuViewLargeIcons = New System.Windows.Forms.ToolStripMenuItem
        Me.mnuViewList = New System.Windows.Forms.ToolStripMenuItem
        Me.mnuViewSmallIcons = New System.Windows.Forms.ToolStripMenuItem
        Me.mnuViewTile = New System.Windows.Forms.ToolStripMenuItem
        Me.lvwBooks = New System.Windows.Forms.ListView
        Me.MenuStrip1.SuspendLayout()
        Me.SuspendLayout()
        '
        'MenuStrip1
        '
        Me.MenuStrip1.Items.AddRange(New System.Windows.Forms.ToolStripItem() {Me.ViewToolStripMenuItem})
        Me.MenuStrip1.Location = New System.Drawing.Point(00)
        Me.MenuStrip1.Name = "MenuStrip1"
        Me.MenuStrip1.Size = New System.Drawing.Size(59224)
        Me.MenuStrip1.TabIndex = 2
        Me.MenuStrip1.Text = "MenuStrip1"
        '
        'ViewToolStripMenuItem
        '
        Me.ViewToolStripMenuItem.DropDownItems.AddRange(New System.Windows.Forms.ToolStripItem() {Me.mnuViewDetails, Me.mnuViewLargeIcons, Me.mnuViewList, Me.mnuViewSmallIcons, Me.mnuViewTile})
        Me.ViewToolStripMenuItem.Name = "ViewToolStripMenuItem"
        Me.ViewToolStripMenuItem.Text = "&View"
        '
        'mnuViewDetails
        '
        Me.mnuViewDetails.Name = "mnuViewDetails"
        Me.mnuViewDetails.Text = "&Details"
        '
        'mnuViewLargeIcons
        '
        Me.mnuViewLargeIcons.Name = "mnuViewLargeIcons"
        Me.mnuViewLargeIcons.Text = "Large Icons"
        '
        'mnuViewList
        '
        Me.mnuViewList.Name = "mnuViewList"
        Me.mnuViewList.Text = "&List"
        '
        'mnuViewSmallIcons
        '
        Me.mnuViewSmallIcons.Name = "mnuViewSmallIcons"
        Me.mnuViewSmallIcons.Text = "&Small Icons"
        '
        'mnuViewTile
        '
        Me.mnuViewTile.Name = "mnuViewTile"
        Me.mnuViewTile.Text = "Tile"
        '
        'lvwBooks
        '
        Me.lvwBooks.Dock = System.Windows.Forms.DockStyle.Fill
        Me.lvwBooks.Location = New System.Drawing.Point(024)
        Me.lvwBooks.Name = "lvwBooks"
        Me.lvwBooks.Size = New System.Drawing.Size(592249)
        Me.lvwBooks.TabIndex = 1
        Me.lvwBooks.View = System.Windows.Forms.View.Details
        '
        'Form1
        '
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(592273)
        Me.Controls.Add(Me.lvwBooks)
        Me.Controls.Add(Me.MenuStrip1)
        Me.Name = "Form1"
        Me.Text = "RunTimeListView"
        Me.MenuStrip1.ResumeLayout(False)
        Me.ResumeLayout(False)
        Me.PerformLayout()

    End Sub
    Friend WithEvents MenuStrip1 As System.Windows.Forms.MenuStrip
    Friend WithEvents ViewToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents mnuViewDetails As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents mnuViewLargeIcons As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents mnuViewList As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents mnuViewSmallIcons As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents mnuViewTile As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents lvwBooks As System.Windows.Forms.ListView

End Class
14.15.ListView
14.15.1.ListView DemoListView Demo
14.15.2.Creating List Views in CodeCreating List Views in Code
14.15.3.Add columns and rows to a ListViewAdd columns and rows to a ListView
14.15.4.Change ListView state: LargeIcon, SmallIcon, List and DetailChange ListView state: LargeIcon, SmallIcon, List and Detail
14.15.5.Add and delete ListView ItemAdd and delete ListView Item
14.15.6.ListView Item Check eventListView Item Check event
14.15.7.Displaying directories and their contents in ListViewDisplaying directories and their contents in ListView
14.15.8.ListView ItemActivate eventListView ItemActivate event
14.15.9.ListView with CheckBox cellListView with CheckBox cell
14.15.10.Add file name to ListViewAdd file name to ListView
14.15.11.Runtime ListViewRuntime ListView
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