ListBox.ColumnWidth Propriedade

public:
 property int ColumnWidth { int get(); void set(int value); };

public int ColumnWidth { get; set; }

member this.ColumnWidth : int with get, set

Public Property ColumnWidth As Integer

Valor de Propriedade

A largura, em píxeis, de cada coluna no controlo. A predefinição é 0.

Exceções

Exemplos

O exemplo de código seguinte demonstra um simples de duas colunas 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;
        this.listBox1.ColumnWidth = 85;
        // 
        // Form1
        // 
        this.ClientSize = new System.Drawing.Size(292, 273);
        this.Controls.Add(this.listBox1);
        this.Name = "Form1";
        this.ResumeLayout(false);
    }
}

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

Observações

Se definir o valor para zero (0), é atribuída uma largura padrão a cada coluna. Se o ListBox for uma multicoluna ListBox, esta propriedade devolve a largura atual de cada coluna na lista. Pode usar esta propriedade para garantir que cada coluna de uma multicoluna ListBox pode exibir corretamente os seus elementos.