DetailsView.PageIndexChanged Evento
Definición
Importante
Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.
Aparece cuando el valor de la propiedad PageIndex cambia después de una operación de paginación.
public:
event EventHandler ^ PageIndexChanged;public event EventHandler PageIndexChanged;member this.PageIndexChanged : EventHandler Public Custom Event PageIndexChanged As EventHandler Tipo de evento
Ejemplos
En el ejemplo de código siguiente se muestra cómo usar el PageIndexChanged evento para devolver al DetailsView modo de solo lectura cuando el usuario navega a otro registro.
<%@ Page language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
void CustomerDetailView_PageIndexChanged(Object sender, EventArgs e)
{
// By default, if the DetailsView control is in edit mode and
// user navigates to another page, the DetailsView control
// remains in edit mode. In this example, the ChangeMode
// method is used to put the DetailsView control in read-only
// mode whenever the user navigates to another record.
CustomerDetailView.ChangeMode(DetailsViewMode.ReadOnly);
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>DetailsView ChangeMode Example</title>
</head>
<body>
<form id="Form1" runat="server">
<h3>DetailsView ChangeMode Example</h3>
<asp:detailsview id="CustomerDetailView"
datasourceid="DetailsViewSource"
datakeynames="CustomerID"
autogenerateeditbutton="true"
autogeneraterows="true"
allowpaging="true"
OnPageIndexChanged="CustomerDetailView_PageIndexChanged"
runat="server">
<fieldheaderstyle backcolor="Navy"
forecolor="White"/>
</asp:detailsview>
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the Northwind sample database. Use an ASP.NET -->
<!-- expression to retrieve the connection string value -->
<!-- from the web.config file. -->
<asp:SqlDataSource ID="DetailsViewSource" runat="server"
ConnectionString=
"<%$ ConnectionStrings:NorthWindConnectionString%>"
InsertCommand="INSERT INTO [Customers]([CustomerID],
[CompanyName], [Address], [City], [PostalCode], [Country])
VALUES (@CustomerID, @CompanyName, @Address, @City,
@PostalCode, @Country)"
SelectCommand="Select [CustomerID], [CompanyName],
[Address], [City], [PostalCode], [Country] From
[Customers]">
</asp:SqlDataSource>
</form>
</body>
</html>
<%@ Page language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Sub CustomerDetailView_PageIndexChanged(ByVal sender As Object, _
ByVal e As EventArgs)
' By default, if the DetailsView control is in edit mode and
' user navigates to another page, the DetailsView control
' remains in edit mode. In this example, the ChangeMode
' method is used to put the DetailsView control in read-only
' mode whenever the user navigates to another record.
CustomerDetailView.ChangeMode(DetailsViewMode.ReadOnly)
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>DetailsView ChangeMode Example</title>
</head>
<body>
<form id="Form1" runat="server">
<h3>DetailsView ChangeMode Example</h3>
<asp:detailsview id="CustomerDetailView"
datasourceid="DetailsViewSource"
datakeynames="CustomerID"
autogenerateeditbutton="true"
autogeneraterows="true"
allowpaging="true"
OnPageIndexChanged="CustomerDetailView_PageIndexChanged"
runat="server">
<fieldheaderstyle backcolor="Navy"
forecolor="White"/>
</asp:detailsview>
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the Northwind sample database. Use an ASP.NET -->
<!-- expression to retrieve the connection string value -->
<!-- from the web.config file. -->
<asp:SqlDataSource ID="DetailsViewSource" runat="server"
ConnectionString=
"<%$ ConnectionStrings:NorthWindConnectionString%>"
InsertCommand="INSERT INTO [Customers]([CustomerID],
[CompanyName], [Address], [City], [PostalCode], [Country])
VALUES (@CustomerID, @CompanyName, @Address, @City,
@PostalCode, @Country)"
SelectCommand="Select [CustomerID], [CompanyName],
[Address], [City], [PostalCode], [Country] From
[Customers]">
</asp:SqlDataSource>
</form>
</body>
</html>
Comentarios
El DetailsView control genera el PageIndexChanged evento cuando se hace clic en un botón de buscapersonas (un botón con su CommandName propiedad establecida en "Página") dentro del control, pero después de que el DetailsView control control controle la operación de paginación. Esto le permite proporcionar un controlador de eventos que realice una rutina personalizada cada vez que se produzca este evento.
Nota
Este evento no se genera al establecer mediante programación la PageIndex propiedad .
Los botones de buscapersonas normalmente se encuentran en la fila del buscapersonas de un DetailsView control. Este evento se usa a menudo para sincronizar un DetailsView control con un GridView control o para establecer el comportamiento del control después de DetailsView una operación de paginación.
Para obtener más información acerca de cómo controlar eventos, vea controlar y provocar eventos.
