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ListBox.MultiColumn Property

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 bool MultiColumn { get; set; }
/** @property */
public boolean get_MultiColumn ()

/** @property */
public void set_MultiColumn (boolean value)

public function get MultiColumn () : boolean

public function set MultiColumn (value : boolean)

Not applicable.

Property Value

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

Exception typeCondition

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.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

public class Form1 : Form
{
    private ListBox listBox1;

    public Form1()
    {
        InitializeComponent();
    }
    [STAThread]
    static void Main()
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        Application.Run(new Form1());
    }

    private void InitializeComponent()
    {
        this.listBox1 = new System.Windows.Forms.ListBox();
        this.SuspendLayout();
        // 
        // listBox1
        // 
        this.listBox1.FormattingEnabled = true;
        this.listBox1.HorizontalScrollbar = true;
        this.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"});
        this.listBox1.Location = new System.Drawing.Point(0, 0);
        this.listBox1.MultiColumn = true;
        this.listBox1.Name = "listBox1";
        this.listBox1.ScrollAlwaysVisible = true;
        this.listBox1.Size = new System.Drawing.Size(120, 95);
        this.listBox1.TabIndex = 0;
        // 
        // Form1
        // 
        this.ClientSize = new System.Drawing.Size(292, 273);
        this.Controls.Add(this.listBox1);
        this.Name = "Form1";
        this.ResumeLayout(false);

    }
}

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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