ObjectListCommand Clase

  • Referencia

Definición

Espacio de nombres:
System.Web.UI.MobileControls
Ensamblado:
System.Web.Mobile.dll

Precaución

The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.

Representa un comando de un control ObjectList ASP.NET Mobile. Para obtener información sobre cómo desarrollar aplicaciones móviles ASP.NET, consulte Mobile Apps & Sites with ASP.NET.

public ref class ObjectListCommand
[System.Web.UI.MobileControls.PersistName("Command")]
public class ObjectListCommand
[System.Web.UI.MobileControls.PersistName("Command")]
[System.Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
public class ObjectListCommand
[<System.Web.UI.MobileControls.PersistName("Command")>]
type ObjectListCommand = class
[<System.Web.UI.MobileControls.PersistName("Command")>]
[<System.Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")>]
type ObjectListCommand = class
Public Class ObjectListCommand
Herencia
Object
ObjectListCommand
Atributos
PersistNameAttribute ObsoleteAttribute

Ejemplos

En el ejemplo siguiente se muestra cómo crear un ObjectListCommand objeto . Este ejemplo forma parte de un ejemplo más grande y completo para la ObjectList información general.

<%@ Page Language="C#" 
    Inherits="System.Web.UI.MobileControls.MobilePage" %>
<%@ Register TagPrefix="mobile" 
    Namespace="System.Web.UI.MobileControls" 
    Assembly="System.Web.Mobile" %>

<script runat="server">
    //System.Web.UI.MobileControls.ObjectListItem item;
    //System.Web.UI.MobileControls.ObjectListItemCollection itemColl;
    // Get the persisted array through postbacks.
    ArrayList arr = new ArrayList();
    public void Page_Load(Object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            // Create and fill the array
            arr.Add(new Task("Tomorrow's work", "Yes", 1));
            arr.Add(new Task("Today's work", "Yes", 1));
            arr.Add(new Task("Yesterday's work", "No", 1));
            
            // Persist the array in the Session object
            Session["MyArrayList"] = arr;

            // Associate and bind array to the 
            // ObjectList for each postback.
            ObjectList1.DataSource = arr;
            ObjectList1.LabelField = "TaskName";
            ObjectList1.DataBind();
        }
    }

    private void ItemCommand_Click(Object sender, 
        ObjectListCommandEventArgs e)
    {
        // Get the array from the Session object
        arr = (ArrayList)Session["MyArrayList"];

        // Remove selected item from the ObjectLis
        int i = ObjectList1.SelectedIndex;
        arr.RemoveAt(i);
        Session["MyArrayList"] = arr;

        // Re-Bind ObjectList to altered ArrayList.
        ObjectList1.DataSource = arr;
        ObjectList1.LabelField = "TaskName";
        ObjectList1.DataBind();
        ObjectList1.ViewMode = ObjectListViewMode.List;
    }

    void ItemCommands_Show(Object sender, 
        ObjectListShowCommandsEventArgs e) 
    {
        // Check conditions, and add or remove 
        // commands in the detail view.
        if (e.ListItem["Editable"].Equals("No"))
            ObjectList1.Commands.RemoveAt(0);
        else if (ObjectList1.Commands.Count < 1)
            ObjectList1.Commands.Add(new 
                ObjectListCommand("Delete", "Delete"));
    }

    private class Task
    {
        private string _TaskName;
        private string _Editable;
        private int _Days;
        public Task(string TaskName, string Editable, int Days)
        {
            _TaskName = TaskName;
            _Editable = Editable;
            _Days = Days;
        }
        public string TaskName
        { get { return _TaskName; } }
        public string Editable
        { get { return _Editable; } }
        public int Days
        { get { return _Days; } }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<body>
    <mobile:Form runat="server" id="Form1" >
        <mobile:ObjectList runat="server" id="ObjectList1" 
            OnItemCommand="ItemCommand_Click" 
            OnShowItemCommands="ItemCommands_Show" >
            <Command Name="Delete" Text="Delete" />
        </mobile:ObjectList>
        <mobile:Label runat="server" id="Label1" />
        <mobile:Label runat="server" id="Label2" />
    </mobile:Form>
</body>
</html>

<%@ Page Language="VB" 
    Inherits="System.Web.UI.MobileControls.MobilePage" %>
<%@ Register TagPrefix="mobile" 
    Namespace="System.Web.UI.MobileControls" 
    Assembly="System.Web.Mobile" %>

<script runat="server">
    ' System.Web.UI.MobileControls.ObjectListItem item
    ' System.Web.UI.MobileControls.ObjectListItemCollection itemColl
    ' Get the persisted array through postbacks.
    Private arr As New ArrayList()
    Public Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
        If Not IsPostBack Then
            ' Create and fill the array
            arr.Add(new Task("Tomorrow's work", "Yes", 1))
            arr.Add(new Task("Today's work", "Yes", 1))
            arr.Add(new Task("Yesterday's work", "No", 1))
            
            ' Persist the array in the Session object
            Session("MyArrayList") = arr

            ' Associate and bind array to the 
            ' ObjectList for each postback.
            ObjectList1.DataSource = arr
            ObjectList1.LabelField = "TaskName"
            ObjectList1.DataBind()
            
        End If
    End Sub

    Private Sub SelectCommand(ByVal sender As Object, _
         ByVal e As ObjectListCommandEventArgs)
        ' Get the array from the Session object
        arr = CType(Session("MyArrayList"), ArrayList)

        ' Remove selected item from the ObjectLis
        Dim i As Integer = ObjectList1.SelectedIndex
        arr.RemoveAt(i)
        Session("MyArrayList") = arr

        ' Re-Bind ObjectList to altered ArrayList.
        ObjectList1.DataSource = arr
        ObjectList1.LabelField = "TaskName"
        ObjectList1.DataBind()
        ObjectList1.ViewMode = ObjectListViewMode.List
    End Sub

    Public Sub ShowTaskDetail(ByVal sender As Object, _
        ByVal e As ObjectListShowCommandsEventArgs)

        ' Check conditions, and add or remove 
        ' commands in the detail view.
        If e.ListItem("Editable").Equals("No") Then
            ObjectList1.Commands.RemoveAt(0)
        ElseIf ObjectList1.Commands.Count < 1 Then
            ObjectList1.Commands.Add(New ObjectListCommand("Delete", "Delete"))
        End If
    End Sub

    Private Class Task
        Private _TaskName As String
        Private _Editable As String
        Private _Days As Integer
        Public Sub New(ByVal TaskName As String, _
            ByVal Editable As String, ByVal Days As Integer)

            _TaskName = TaskName
            _Editable = Editable
            _Days = Days
        End Sub
        Public ReadOnly Property TaskName() As String
            Get
                Return _TaskName
            End Get
        End Property
        Public ReadOnly Property Editable() As String
            Get
                Return _Editable
            End Get
        End Property
        Public ReadOnly Property Days() As Integer
            Get
                Return _Days
            End Get
        End Property
    End Class
</script>

<html xmlns="http:'www.w3.org/1999/xhtml" >
<body>
    <mobile:Form runat="server" id="Form1" >
        <mobile:ObjectList runat="server" id="ObjectList1" 
            OnItemCommand="SelectCommand" OnShowItemCommands="ShowTaskDetail" >
            <Command Name="Delete" Text="Delete" />
        </mobile:ObjectList>
        <mobile:Label runat="server" id="Label1" />
        <mobile:Label runat="server" id="Label2" />
    </mobile:Form>
</body>
</html>

Comentarios

Un ObjectListCommand objeto se puede declarar como un <command> elemento dentro de la declaración de un ObjectListobjeto .

Un ObjectListCommand objeto también se puede construir y agregar mediante programación a , ObjectListagregándolo a la colección de miembros del Commands control.

Constructores

ObjectListCommand()
Obsoletos.

Inicializa una nueva instancia de la clase ObjectListCommand. Esta API está obsoleta. Para obtener información sobre cómo desarrollar aplicaciones móviles ASP.NET, consulte Mobile Apps & Sites with ASP.NET.
ObjectListCommand(String, String)
Obsoletos.

Inicializa una nueva instancia de la clase ObjectListCommand. Esta API está obsoleta. Para obtener información sobre cómo desarrollar aplicaciones móviles ASP.NET, consulte Mobile Apps & Sites with ASP.NET.

Propiedades

Name
Obsoletos.

Obtiene el nombre del comando. Esta API está obsoleta. Para obtener información sobre cómo desarrollar aplicaciones móviles ASP.NET, consulte Mobile Apps & Sites with ASP.NET.
Text
Obsoletos.

Obtiene o establece el texto que va a aparecer en el comando. El valor predeterminado es una cadena vacía. Esta API está obsoleta. Para obtener información sobre cómo desarrollar aplicaciones móviles ASP.NET, consulte Mobile Apps & Sites with ASP.NET.

Métodos

Equals(Object)
Obsoletos.

Determina si el objeto especificado es igual que el objeto actual.

(Heredado de Object)
GetHashCode()
Obsoletos.

Sirve como la función hash predeterminada.

(Heredado de Object)
GetType()
Obsoletos.

Obtiene el Type de la instancia actual.

(Heredado de Object)
MemberwiseClone()
Obsoletos.

Crea una copia superficial del Object actual.

(Heredado de Object)
ToString()
Obsoletos.

Devuelve una cadena que representa el objeto actual.

(Heredado de Object)

Se aplica a

Consulte también