Clase ListReadyEventArgs

NOTA: esta API está ahora obsoleta.

Proporciona la lista de datos para el evento deListReadyde la interfaz deIListProvider.

Jerarquía de la herencia

System.Object
  System.EventArgs
    Microsoft.SharePoint.WebPartPages.Communication.ListReadyEventArgs

Espacio de nombres:  Microsoft.SharePoint.WebPartPages.Communication
Ensamblado:  Microsoft.SharePoint (en Microsoft.SharePoint.dll)

Sintaxis

'Declaración
<ObsoleteAttribute("Use System.Web.UI.WebControls.WebParts.IWebPartTable instead")> _
Public Class ListReadyEventArgs _
    Inherits EventArgs
'Uso
Dim instance As ListReadyEventArgs

[ObsoleteAttribute("Use System.Web.UI.WebControls.WebParts.IWebPartTable instead")]
public class ListReadyEventArgs : EventArgs

Ejemplos

En el ejemplo de código siguiente se muestra un métodoreemplazado WebPart.PartCommunicationMainque crea una instancia de la clase ListReadyEventArgs para enviar cuando se produce el evento ListReady . Este ejemplo de código forma parte de un ejemplo más extenso de la interfaz IListProvider .

' Step #8: Override the PartCommunicationMain method.
' The PartCommunicationMain method is called by the Web Part 
' Infrastructure on the client during the ASP.NET PreRender
' event to allow the part to pass its primary data to the other 
' connected parts.
' It is important to always fire the ListReady or PartialListReady 
' event. Some parts may not behave properly if they are left waiting 
' for this information.
Public Overrides Sub PartCommunicationMain()
   ' Ensure that all of the Web Part's controls are created.
   

   ' Ensure that all of the Web Part's controls are created.
   EnsureChildControls()
   
   ' Check if connected
   If _connected Then
      ' If there is a listener, fire the ListReady event.
      If Not (ListReady Is Nothing) Then
         ' Create the ListReadyEventArgs object for the ListProviderInit event.
         Dim listReadyArgs As New ListReadyEventArgs()
         
         ' If user clicked button, send the value.
         If _listButtonClicked Then
            ' Set the List to the value of the table in the DataGrid.
            ' This is the value that will be sent to the consumer Web 
            ' Part.
            listReadyArgs.List = CType(_dataGrid.DataSource, DataTable)
         Else
            ' The user didn't click the button, so send a
            ' null DataTable to the consumer Web Part.
            listReadyArgs.List = Nothing
         End If
         
         ' Fire the ListReady event.
         ' The consumer Web Part will receive the DataTable.
         
         ListReady(Me, listReadyArgs)

      End If
   End If
End Sub 'PartCommunicationMain

// Step #8: Override the PartCommunicationMain method.
// The PartCommunicationMain method is called by the Web Part 
// Infrastructure on the client during the ASP.NET PreRender
// event to allow the part to pass its primary data to the other 
// connected parts.
// It is important to always fire the ListReady or PartialListReady 
// event. Some parts may not behave properly if they are left waiting 
// for this information.
public override void PartCommunicationMain()
{
    // Ensure that all of the Web Part's controls are created.
    EnsureChildControls();

    // Check if connected
    if(_connected)
    {
        // If there is a listener, fire the ListReady event.
        if (ListReady != null)
        {
            // Create the ListReadyEventArgs object for the 
            // ListProviderInit event.
            ListReadyEventArgs listReadyArgs = new ListReadyEventArgs();

            // If user clicked button, send the value.
            if (_listButtonClicked)
            {
                // Set the List to the value of the table in the 
                // DataGrid.
                // This is the value that will be sent to the consumer 
                // Web Part.
                listReadyArgs.List = ((DataTable)_dataGrid.DataSource);
            }
            else
            {
                // The user didn't click the button, so send a
                // null DataTable to the consumer Web Part.
                listReadyArgs.List = null;
            }

            // Fire the ListReady event.
            // The consumer Web Part will receive the DataTable.
            ListReady(this, listReadyArgs);
        }
    }
}

Seguridad para subprocesos

Los miembros static (Shared en Visual Basic) públicos de este tipo son seguros para subprocesos. No se garantiza que los miembros de instancias sean seguros para los subprocesos.

Vea también

Referencia

Miembros ListReadyEventArgs

Espacio de nombres Microsoft.SharePoint.WebPartPages.Communication