IFilterConsumer.NoFilter method

Artigo
05/12/2015

NOTE: This API is now obsolete.

Usada para responder a uma mensagem de que nenhum filtro será fornecido a partir do evento de NoFilter de uma Web Part provedora.

Namespace: Microsoft.SharePoint.WebPartPages.Communication
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)

Syntax

'Declaração
<ObsoleteAttribute("Use System.Web.UI.WebControls.WebParts.IWebPartParameters instead")> _
Sub NoFilter ( _
    sender As Object, _
    e As EventArgs _
)
'Uso
Dim instance As IFilterConsumer
Dim sender As Object
Dim e As EventArgs

instance.NoFilter(sender, e)

[ObsoleteAttribute("Use System.Web.UI.WebControls.WebParts.IWebPartParameters instead")]
void NoFilter(
    Object sender,
    EventArgs e
)

Parâmetros

sender
Type: System.Object

Uma referência ao objeto que implementa a interface IFilterProvider na Web Part do provedor.

e
Type: System.EventArgs

Os argumentos de eventos passados da NoFilter Event. Isso será um objeto null .

Examples

O exemplo de código a seguir mostra uma implementação do método NoFilter . Este exemplo de código é parte de um exemplo maior fornecido para a interface IFilterConsumer .

' Step #11: Implement NoFilter event handler.
' The connected provider part will call this method during its 
' PartCommunicationMain phase to indicate there is no change in the 
' filter. This allows the consumer part to 
' display its cached data instead of recalculating the filter 
' expression or potentially hitting a database again. 
' <param name="sender">Provider Web Part</param>
' <param name="eventArgs">The Event Arguments</param>
Public Sub NoFilter(sender As Object, eventArgs As EventArgs) Implements IFilterConsumer.NoFilter
   ' Ensure that all of the Web Part's controls are created.
   EnsureChildControls()
   
   ' No change in the filter so use cached _cachedRowFilter.
   _rowFilterExpression = _cachedRowFilter.Text
End Sub

// Step #11: Implement NoFilter event handler.
// The connected provider part will call this method during its 
// PartCommunicationMain phase
// to indicate there is no change in the filter. This allows the 
// consumer part to display its cached data instead of recalculating 
// the filter expression or potentially hitting a database again. 
// <param name="sender">Provider Web Part</param>
// <param name="eventArgs">The Event Argumentsr</param>

public void NoFilter(object sender, EventArgs eventArgs)
{
    // Ensure that all of the Web Part's controls are created.
    EnsureChildControls();

    // No change in the filter so use cached _cachedRowFilter.
    _rowFilterExpression = _cachedRowFilter.Text;
}

Ver também

Referência

IFilterConsumer interface

IFilterConsumer members

Microsoft.SharePoint.WebPartPages.Communication namespace

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