ColumnClick (Evento)

ListView.ColumnClick (Evento)

Se produce cuando el usuario hace clic en un encabezado de columna en el control de vista de lista.

Espacio de nombres: System.Windows.Forms
Ensamblado: System.Windows.Forms (en system.windows.forms.dll)

public event ColumnClickEventHandler ColumnClick
/** @event */
public void add_ColumnClick (ColumnClickEventHandler value)

/** @event */
public void remove_ColumnClick (ColumnClickEventHandler value)

En JScript, se pueden controlar los eventos que define una clase, pero no se pueden definir unos propios.
No aplicable.

El evento ColumnClick se produce cuando el usuario hace clic en uno de los encabezados de columna en la vista de detalles de los elementos de un control ListView (si la propiedad View está establecida en Details). Se suele controlar el evento ColumnClick para ordenar los elementos de ListView utilizando la columna seleccionada como columna por la que se va a ordenar.

Para obtener más información sobre la forma de controlar eventos, vea Utilizar eventos.

En el ejemplo de código siguiente se crea un formulario que contiene un control ListView que ordena manualmente los elementos cuando se hace clic en una columna del control ListView. En el ejemplo se define una clase denominada ListViewItemComparer, que implementa la interfaz System.Collections.IComparer que realiza la comparación de ListViewItem. También se crea una instancia de ListViewItemComparer, que se utiliza para establecer el valor de la propiedad ListViewItemSorter del control ListView. La llamada al método Sort en el controlador de eventos ColumnClick usa los métodos definidos en ListViewItemComparer para ordenar los elementos según la columna en la que se haga clic.

using System;
using System.Windows.Forms;
using System.Drawing;
using System.Collections;

namespace ListViewSortFormNamespace
{
    
   
    public class ListViewSortForm : Form
    {
        private ListView listView1;
       
        public ListViewSortForm()
        {
            // Create ListView items to add to the control.
            ListViewItem listViewItem1 = new ListViewItem(new string[] {"Banana","a","b","c"}, -1, Color.Empty, Color.Yellow, null);
            ListViewItem listViewItem2 = new ListViewItem(new string[] {"Cherry","v","g","t"}, -1, Color.Empty, Color.Red, new Font("Microsoft Sans Serif", 8.25F, FontStyle.Regular, GraphicsUnit.Point, ((System.Byte)(0))));
            ListViewItem listViewItem3 = new ListViewItem(new string[] {"Apple","h","j","n"}, -1, Color.Empty, Color.Lime, null);
            ListViewItem listViewItem4 = new ListViewItem(new string[] {"Pear","y","u","i"}, -1, Color.Empty, Color.FromArgb(((System.Byte)(192)), ((System.Byte)(128)), ((System.Byte)(156))), null);
     
            //Initialize the ListView control and add columns to it.
            this.listView1 = new ListView();

            // Set the initial sorting type for the ListView.
            this.listView1.Sorting = SortOrder.None;
            // Disable automatic sorting to enable manual sorting.
            this.listView1.View = View.Details;
            // Add columns and set their text.
            this.listView1.Columns.Add(new ColumnHeader());
            this.listView1.Columns[0].Text = "Column 1";
            this.listView1.Columns[0].Width = 100;
            listView1.Columns.Add(new ColumnHeader());
            listView1.Columns[1].Text = "Column 2";
            listView1.Columns.Add(new ColumnHeader());
            listView1.Columns[2].Text = "Column 3";
            listView1.Columns.Add(new ColumnHeader());
            listView1.Columns[3].Text = "Column 4";
            // Suspend control logic until form is done configuring form.
            this.SuspendLayout();
            // Add Items to the ListView control.
            this.listView1.Items.AddRange(new ListViewItem[] {listViewItem1,
                listViewItem2,
                listViewItem3,
                listViewItem4});
            // Set the location and size of the ListView control.
            this.listView1.Location = new Point(10, 10);
            this.listView1.Name = "listView1";
            this.listView1.Size = new Size(300, 100);
            this.listView1.TabIndex = 0;
            // Enable editing of the items in the ListView.
            this.listView1.LabelEdit = true;
            // Connect the ListView.ColumnClick event to the ColumnClick event handler.
            this.listView1.ColumnClick += new ColumnClickEventHandler(ColumnClick);
   			
            // Initialize the form.
            this.ClientSize = new Size(400, 400);
            this.Controls.AddRange(new Control[] {this.listView1});
            this.Name = "ListViewSortForm";
            this.Text = "Sorted ListView Control";
            // Resume layout of the form.
            this.ResumeLayout(false);
        }
        
	
        // ColumnClick event handler.
        private void ColumnClick(object o, ColumnClickEventArgs e)
        {
            // Set the ListViewItemSorter property to a new ListViewItemComparer 
            // object. Setting this property immediately sorts the 
            // ListView using the ListViewItemComparer object.
            this.listView1.ListViewItemSorter = new ListViewItemComparer(e.Column);
        }

        [System.STAThreadAttribute()]
        public static void Main()
        {
            Application.Run(new ListViewSortForm());
        }

    }

    // Implements the manual sorting of items by columns.
    class ListViewItemComparer : IComparer
    {
        private int col;
        public ListViewItemComparer()
        {
            col = 0;
        }
        public ListViewItemComparer(int column)
        {
            col = column;
        }
        public int Compare(object x, object y)
        {
            return String.Compare(((ListViewItem)x).SubItems[col].Text, ((ListViewItem)y).SubItems[col].Text);
        }
    }

}

package ListViewSortFormNamespace;

import System.*;
import System.Windows.Forms.*;
import System.Drawing.*;
import System.Collections.*;

public class ListViewSortForm extends Form
{
    private ListView listView1;

    public ListViewSortForm()
    {
        // Create ListView items to add to the control.
        ListViewItem listViewItem1 = new ListViewItem(new String[] { "Banana", 
            "a", "b", "c" }, -1, Color.Empty, Color.get_Yellow(), null);
        ListViewItem listViewItem2 = new ListViewItem(new String[] { "Cherry", 
            "v", "g", "t" }, -1, Color.Empty, Color.get_Red(), 
            new Font("Microsoft Sans Serif", (float)8.25, FontStyle.Regular, 
            GraphicsUnit.Point, (ubyte)0));
        ListViewItem listViewItem3 = new ListViewItem(new String[] { "Apple", 
            "h", "j", "n" }, -1, Color.Empty, Color.get_Lime(), null);
        ListViewItem listViewItem4 = new ListViewItem(new String[] { "Pear", 
            "y", "u", "i" }, -1, Color.Empty, Color.FromArgb(192, 128, 156), 
            null);

        //Initialize the ListView control and add columns to it.
        this.listView1 = new ListView();

        // Set the initial sorting type for the ListView.
        this.listView1.set_Sorting(SortOrder.None);

        // Disable automatic sorting to enable manual sorting.
        this.listView1.set_View(View.Details);

        // Add columns and set their text.
        this.listView1.get_Columns().Add(new ColumnHeader());
        this.listView1.get_Columns().get_Item(0).set_Text("Column 1");
        this.listView1.get_Columns().get_Item(0).set_Width(100);
        listView1.get_Columns().Add(new ColumnHeader());
        listView1.get_Columns().get_Item(1).set_Text("Column 2");
        listView1.get_Columns().Add(new ColumnHeader());
        listView1.get_Columns().get_Item(2).set_Text("Column 3");
        listView1.get_Columns().Add(new ColumnHeader());
        listView1.get_Columns().get_Item(3).set_Text("Column 4");

        // Suspend control logic until form is done configuring form.
        this.SuspendLayout();

        // Add Items to the ListView control.
        this.listView1.get_Items().AddRange(new ListViewItem[] { listViewItem1,
            listViewItem2, listViewItem3, listViewItem4 });

        // Set the location and size of the ListView control.
        this.listView1.set_Location(new Point(10, 10));
        this.listView1.set_Name("listView1");
        this.listView1.set_Size(new Size(300, 100));
        this.listView1.set_TabIndex(0);

        // Enable editing of the items in the ListView.
        this.listView1.set_LabelEdit(true);

        // Connect the ListView.ColumnClick event to the 
        // ColumnClick event handler.
        this.listView1.add_ColumnClick(new ColumnClickEventHandler(ColumnClick));

        // Initialize the form.
        this.set_ClientSize(new Size(400, 400));
        this.get_Controls().AddRange(new Control[] { this.listView1 });
        this.set_Name("ListViewSortForm");
        this.set_Text("Sorted ListView Control");

        // Resume layout of the form.
        this.ResumeLayout(false);
    } //ListViewSortForm

    // ColumnClick event handler.
    private void ColumnClick(Object o, ColumnClickEventArgs e)
    {
        // Set the ListViewItemSorter property to a new ListViewItemComparer 
        // object. Setting this property immediately sorts the 
        // ListView using the ListViewItemComparer object.
        this.listView1.set_ListViewItemSorter(
            new ListViewItemComparer(e.get_Column()));
    } //ColumnClick

    /** @attribute System.STAThreadAttribute()
     */
    public static void main(String[] args)
    {
        Application.Run(new ListViewSortForm());
    } //main
} //ListViewSortForm

// Implements the manual sorting of items by columns.
class ListViewItemComparer implements IComparer
{
    private int col;

    public ListViewItemComparer()
    {
        col = 0;
    } //ListViewItemComparer

    public ListViewItemComparer(int column)
    {
        col = column;
    } //ListViewItemComparer

    public int Compare(Object x, Object y)
    {
        return String.Compare(
            ((ListViewItem)x).get_SubItems().get_Item(col).get_Text(),
            ((ListViewItem)y).get_SubItems().get_Item(col).get_Text());
    } //Compare
} //ListViewItemComparer

Windows 98, Windows 2000 Service Pack 4, Windows CE, Windows Millennium, Windows Mobile para Pocket PC, Windows Server 2003, Windows XP Media Center, Windows XP Professional x64, Windows XP SP2, Windows XP Starter

Microsoft .NET Framework 3.0 es compatible con Windows Vista, Microsoft Windows XP SP2 y Windows Server 2003 SP1.

.NET Framework

Compatible con: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Compatible con: 2.0, 1.0
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