Класс ParametersInReadyEventArgs

Примечание. Этот API устарел.

Предоставляет массив значений параметров, ParametersInReadyсобытия интерфейса IParametersInProvider .

Иерархия наследования

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

Пространство имен:  Microsoft.SharePoint.WebPartPages.Communication
Сборка:  Microsoft.SharePoint (в Microsoft.SharePoint.dll)

Синтаксис

'Декларация
<ObsoleteAttribute("Use System.Web.UI.WebControls.WebParts.IWebPartParameters instead")> _
Public Class ParametersInReadyEventArgs _
    Inherits EventArgs
'Применение
Dim instance As ParametersInReadyEventArgs

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

Примеры

В следующем примере кода показан метод переопределения PartCommunicationMain, который создает экземпляр класса ParametersInReadyEventArgs для отправки при возникновении события ParametersInReady . Данный пример кода является частью большего примера, приведенного для интерфейса IParametersInProvider .

      ' Step #7: Implement 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 either the ParametersInReady or 
      ' the NoParametersIn event. Some parts
      ' may not behave properly if they are left waiting for this 
      ' information.
      ' ParametersInReady should be fired to send the parameters.
      ' NoParametersIn should be fired to indicate that there is no 
      ' change in the parameters.
      Public Overrides Sub PartCommunicationMain()
            ' Ensure that all of the Web Part's controls are created.
            EnsureChildControls()

            'Check if connected
            If _connected Then
                ' Create the ParametersInReadyEventArgs object for the ParametersInReady event.
                Dim parametersInReadyEventArgs As New ParametersInReadyEventArgs()

                If _parametersReadyButtonClicked Then 'ParametersInReady Button was clicked

                    ' Set the parameter values to the text box values.
                    If Not (_fieldList Is Nothing) Then
                        parametersInReadyEventArgs.ParameterValues = New String(_fieldList.Length) {}

                        Dim index As Integer
                        For index = 0 To _fieldList.Length - 1
                            parametersInReadyEventArgs.ParameterValues(index) = _fontAttributeTextBox(index).Text
                        Next index

                        ' Fire the ParametersInReady event.
                        RaiseEvent ParametersInReady(Me, parametersInReadyEventArgs)
                        '_fieldList is null
                    Else
                        ' Fire the event.
                        RaiseEvent NoParametersIn(Me, New EventArgs())
                    End If
                    _parametersReadyButtonClicked = False
                ElseIf _noParametersInButtonClicked Then 'NoParametersIn Button was clicked                       
                    ' Fire the NoParametersIn event.
                    RaiseEvent NoParametersIn(Me, New EventArgs())
                    _noParametersInButtonClicked = False
                End If
            End If
        End Sub

// Step #7: Implement the PartCommunicationMain() method.
// The PartCommunicationMain method is called by the Web Part 
// infrastructure on the client during the ASP.NET PreRender
// phase to allow the part to pass its primary data to the other 
// connected parts.
// It is important to always fire either the ParametersInReady or the 
// NoParametersIn event. Some parts
// may not behave properly if they are left waiting for this 
// information.
// ParametersInReady should be fired to send the parameters.
// NoParametersIn should be fired to indicate that there is no change 
// in the parameters.

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 ParametersInReady event.
        if(ParametersInReady != null)
        {
            //Create the ParametersInReadyEventArgs object for the 
            //ParametersInReady event.
            ParametersInReadyEventArgs parametersInReadyEventArgs = new ParametersInReadyEventArgs();

            // If the ParametersInReady button was clicked.
            if(_parametersReadyButtonClicked)
            {
                // If there is a listener, fire the ParametersInReady 
                // event.
                if(ParametersInReady != null)
                {
                    //Set the parameter values to the text box values.
                    if (_fieldList != null)
                    parametersInReadyEventArgs.ParameterValues = new string[_fieldList.Length];

                    for (int index = 0; index < _fieldList.Length; index++)
                    {
                        parametersInReadyEventArgs.ParameterValues[index] = _fontAttributeTextBox[index].Text;
                    }

                    // Fire the ParametersInReady event.
                    ParametersInReady(this, parametersInReadyEventArgs);

                    _parametersReadyButtonClicked = false;
                }
            }
            // If the NoParametersIn button was clicked.
            else if(_noParametersInButtonClicked)
            {
                // If there is a listener, fire the NoParametersIn 
                // event.
                if(NoParametersIn != null)
                {
                    // Fire the event.
                    NoParametersIn(this, new EventArgs());

                    _noParametersInButtonClicked = false;
                }
            }
            // The user didn't click any button.
            else 
            {
               // If there is a listener, fire the NoParametersIn 
               // event.
                if(NoParametersIn != null)
                {
                    // Fire the event
                    NoParametersIn(this, new EventArgs());

                    _noParametersInButtonClicked = false;
                }
            }
        }
    }
}

Потокобезопасность

Любые общедоступные элементы static (Shared в Visual Basic) этого типа являются потокобезопасными. Не гарантируется, что любые элементы экземпляров потокобезопасны.

См. также

Справочные материалы

Элементы ParametersInReadyEventArgs

Пространство имен Microsoft.SharePoint.WebPartPages.Communication