ListBox.MultiColumn Property

 
System_CAPS_noteNote

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Gets or sets a value indicating whether the ListBox supports multiple columns.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

Public Property MultiColumn As Boolean

Property Value

Type: System.Boolean

true if the ListBox supports multiple columns; otherwise, false. The default is false.

Exception Condition
ArgumentException

A multicolumn ListBox cannot have a variable-sized height.

A multicolumn ListBox places items into as many columns as are needed to make vertical scrolling unnecessary. The user can use the keyboard to navigate to columns that are not currently visible. Set the HorizontalScrollbar property to true to display a horizontal scroll bar that enables the user to scroll to columns that are not currently shown in the visible region of the ListBox. The value of the ColumnWidth property determines the width of each column.

The following code example demonstrates a simple two-column ListBox.

Imports System
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
Imports System.Text
Imports System.Windows.Forms

Public Class Form1
   Inherits Form
   Private listBox1 As ListBox


   Public Sub New()
      InitializeComponent()
   End Sub

   <STAThread()>  _
   Shared Sub Main()
      Application.EnableVisualStyles()
      Application.SetCompatibleTextRenderingDefault(False)
      Application.Run(New Form1())
   End Sub

   Private Sub InitializeComponent()
      Me.listBox1 = New System.Windows.Forms.ListBox()
      Me.SuspendLayout()
      ' 
      ' listBox1
      ' 
      Me.listBox1.FormattingEnabled = True
      Me.listBox1.HorizontalScrollbar = True
      Me.listBox1.Items.AddRange(New Object() {"Item 1, column 1", "Item 2, column 1", "Item 3, column 1", "Item 4, column 1", "Item 5, column 1", "Item 1, column 2", "Item 2, column 2", "Item 3, column 2"})
      Me.listBox1.Location = New System.Drawing.Point(0, 0)
      Me.listBox1.MultiColumn = True
      Me.listBox1.Name = "listBox1"
      Me.listBox1.ScrollAlwaysVisible = True
      Me.listBox1.Size = New System.Drawing.Size(120, 95)
      Me.listBox1.TabIndex = 0
      Me.listBox1.ColumnWidth = 85
      ' 
      ' Form1
      ' 
      Me.ClientSize = New System.Drawing.Size(292, 273)
      Me.Controls.Add(listBox1)
      Me.Name = "Form1"
      Me.ResumeLayout(False)
   End Sub
End Class

.NET Framework
Available since 1.1
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