IEditableTextControl.TextChanged Evento

Definizione

Spazio dei nomi:

System.Web.UI

Assembly:

System.Web.dll

Si verifica quando il contenuto del testo viene modificato tra un invio e l'altro al server.

public:
 event EventHandler ^ TextChanged;

event EventHandler TextChanged;

member this.TextChanged : EventHandler 

Event TextChanged As EventHandler 

Tipo evento

EventHandler

Esempio

Nell'esempio di codice seguente viene illustrata un'implementazione dell'evento TextChanged .

public partial class customeditablebox : System.Web.UI.UserControl, IEditableTextControl
{
    private static readonly object EventCustomTextChanged = new Object();

    public event EventHandler TextChanged
    {
        add
        {
            Events.AddHandler(EventCustomTextChanged, value);
        }
        remove
        {
            Events.RemoveHandler(EventCustomTextChanged, value);
        }
    }

    public string Text
    {
        get
        {
            // Provide implementation.
            return String.Empty;
        }
        set
        {
            // Provide implementation.
        }
    }
}

Public Class customeditablebox
    Inherits System.Web.UI.UserControl
    Implements System.Web.UI.IEditableTextControl

    Private Shared ReadOnly EventCustomTextChanged As New Object

    Public Custom Event TextChanged As EventHandler _
      Implements System.Web.UI.IEditableTextControl.TextChanged
        AddHandler(ByVal value As EventHandler)
            Events.AddHandler(EventCustomTextChanged, value)
        End AddHandler

        RemoveHandler(ByVal value As EventHandler)
            Events.RemoveHandler(EventCustomTextChanged, value)
        End RemoveHandler

        RaiseEvent(ByVal sender As Object, ByVal e As EventArgs)

        End RaiseEvent
    End Event

    Public Property Text() As String _
      Implements System.Web.UI.IEditableTextControl.Text
        Get
            ' Provide implementation.
            Return String.Empty
        End Get
        Set(ByVal value As String)
            ' Provide implementation.
        End Set
    End Property
End Class

Commenti

L'evento TextChanged si verifica quando la Text proprietà viene modificata tra i post al server. Un'implementazione di questo evento è disponibile in TextBox o nel ListControl controllo .