Clase RowReadyEventArgs

NOTA: esta API está ahora obsoleta.

Proporciona el valor de la fila actual de un elemento Web que implementa la interfaz de IRowProvider cuando se produce el evento RowReady .

Jerarquía de la herencia

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

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

Sintaxis

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

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

Ejemplos

En el ejemplo de código siguiente se muestra un método invalidado WebPart.PartCommunicationMain que crea un objeto RowReadyEventArgs , se establece los valores de fila y el estado de selección y, a continuación, se desencadena el evento RowReady . Este ejemplo de código forma parte de un ejemplo más extenso de la interfaz IRowProvider .

      ' 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 RowReady event. Some parts
      ' may not behave properly if they are left waiting for this 
      ' information.
      Public Overrides Sub PartCommunicationMain()
         ' Check if connected.
         If _connected Then
            'If there is a listener, fire the RowReady event.
            If Not (RowReady Is Nothing) Then
               ' Create the RowReadyEventArgs object for the RowReady 
               ' event.
               Dim rowReadyEventArgs As New RowReadyEventArgs()
               
               ' Declare data variables.
               Dim selectionStatus As String = ""
               Dim dr(0) As DataRow
               
               ' If a row is selected, send the row.
               If _dataGrid.SelectedIndex > - 1 Then
                  ' Generate an array containing the selected 
                  ' DataRow(s).
                  dr(0) = CType(_dataGrid.DataSource, DataTable).Rows(_dataGrid.SelectedIndex)
                  
                  ' Set the selection status.
                  selectionStatus = "Standard"
               
               Else
                  ' The user hasn't selected a row so send null.
                  dr(0) = Nothing
                  
                  ' Set the selection status.
                  selectionStatus = "None"
               End If
               
               ' Set values.
               rowReadyEventArgs.Rows = dr
               rowReadyEventArgs.SelectionStatus = selectionStatus
               
               ' Fire the RowReady event.
               RaiseEvent RowReady(Me, rowReadyEventArgs)
            End If
         End If
      End Sub

        // 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 RowReady event. Some 
        // parts may not behave properly if they are left waiting for 
        // this information.
        public override void PartCommunicationMain()
        {
            // Check if connected.
            if(_connected)
            {
                //If there is a listener, fire the RowReady event.
                if (RowReady != null)
                {
                    // Create the RowReadyEventArgs object for the 
                    // RowReady event.
                    RowReadyEventArgs rowReadyEventArgs = new RowReadyEventArgs();

                    // Declare data variables.
                    string selectionStatus = "";
                    DataRow[] dr = new DataRow[1];

                    // If a row is selected, send the row.
                    if ( _dataGrid.SelectedIndex > -1)
                    {
                        // Generate an array containing the selected 
                        // DataRow(s).
                        dr[0] = ((DataTable)_dataGrid.DataSource).Rows[_dataGrid.SelectedIndex];
                    
                        // Set the selection status.
                        selectionStatus = "Standard";

                    }
                    else
                    {
                        // The user hasn't selected a row so send null.
                        dr[0] = null;

                        // Set the selection status.
                        selectionStatus = "None";
                    }

                    // Set values
                    rowReadyEventArgs.Rows = dr;
                    rowReadyEventArgs.SelectionStatus = selectionStatus;

                    // Fire the RowReady event.
                    RowReady(this, rowReadyEventArgs);
                }
            }
        }

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 RowReadyEventArgs

Espacio de nombres Microsoft.SharePoint.WebPartPages.Communication