ListReadyEventArgs class
NOTE: This API is now obsolete.
Provides the list of data to the ListReadyevent of the IListProviderinterface.
Inheritance hierarchy
System.Object
System.EventArgs
Microsoft.SharePoint.WebPartPages.Communication.ListReadyEventArgs
Namespace: Microsoft.SharePoint.WebPartPages.Communication
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Syntax
'Declaration
<ObsoleteAttribute("Use System.Web.UI.WebControls.WebParts.IWebPartTable instead")> _
Public Class ListReadyEventArgs _
Inherits EventArgs
'Usage
Dim instance As ListReadyEventArgs
[ObsoleteAttribute("Use System.Web.UI.WebControls.WebParts.IWebPartTable instead")]
public class ListReadyEventArgs : EventArgs
Examples
The following code example shows an overridden WebPart.PartCommunicationMainmethod that creates an instance of the ListReadyEventArgs class to send when the ListReady event occurs. This code example is part of a larger example provided for the IListProvider interface.
' 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);
}
}
}
Thread safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.