WebPart.PartCommunicationInit Method
NOTE: This API is now obsolete.
Provides a connectable Web Part with a method for firing any of its initialization events, such as the CellProviderInit or CellConsumerInit event.
Namespace: Microsoft.SharePoint.WebPartPages
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Available in Sandboxed Solutions: No
Syntax
'Declaration
<ObsoleteAttribute("Use ConnectionProvider or ConnectionConsumer attribute to create ConnectionPoint instead.")> _
Public Overridable Sub PartCommunicationInit
'Usage
Dim instance As WebPart
instance.PartCommunicationInit()
[ObsoleteAttribute("Use ConnectionProvider or ConnectionConsumer attribute to create ConnectionPoint instead.")]
public virtual void PartCommunicationInit()
Examples
The following code example shows an overridden PartCommunicationInit method that fires the CellProviderInit event. This code example is part of a larger example provided for the ICellProvider interface.
For an overview of the steps for creating a connectable Web Part, see Walkthrough: Creating Connectable Web Parts in SharePoint Foundation.
' Step #9: Override the PartCommunicationInit() method
' PartCommunicationInit() is called by the Web Part infrastructure during the ASP.NET PreRender
' event to allow the part to pass initialization information to the other connected parts.
' It is important to always pass initialization information as some parts
' may not behave properly if this initialization information is not received.
Public Overrides Sub PartCommunicationInit()
' Check if connected
If _connected Then
' Create the InitEventArgs structure for the CellProviderInit event.
Dim cellProviderInitArgs As New CellProviderInitEventArgs()
' Set the FieldName and FieldDisplay values.
cellProviderInitArgs.FieldName = _cellName
cellProviderInitArgs.FieldDisplayName = _cellDisplayName
' Fire the CellProviderInit event.
RaiseEvent CellProviderInit(Me, cellProviderInitArgs)
End If
End Sub
// Step #9: Override the PartCommunicationInit() method
// PartCommunicationInit() is called by the Web Part infrastructure during the ASP.NET PreRender
// event to allow the part to pass initialization information to the other connected parts.
// It is important to always pass initialization information as some parts
// may not behave properly if this initialization information is not received.
public override void PartCommunicationInit()
{
// Check if connected
if(_connected)
{
// If there is a listener, fire the CellProviderInit event.
if (CellProviderInit != null)
{
// Create the CellProviderInitEventArgs structure for the CellProviderInit event.
CellProviderInitEventArgs cellProviderInitArgs = new CellProviderInitEventArgs();
// Set the FieldName and FieldDisplay values.
cellProviderInitArgs.FieldName = _cellName;
cellProviderInitArgs.FieldDisplayName = _cellDisplayName;
// Fire the CellProviderInit event.
CellProviderInit(this, cellProviderInitArgs);
}
}
}