Part Manager. Web Parts Connected Event
Occurs after a specific connection has been established between WebPart controls (or server or user controls).
public: event System::Web::UI::WebControls::WebParts::WebPartConnectionsEventHandler ^ WebPartsConnected;
public event System.Web.UI.WebControls.WebParts.WebPartConnectionsEventHandler WebPartsConnected;
member this.WebPartsConnected : System.Web.UI.WebControls.WebParts.WebPartConnectionsEventHandler
Public Custom Event WebPartsConnected As WebPartConnectionsEventHandler
The WebPartsConnected event is associated with the OnWebPartsConnected method. The event is useful because after you know that a connection is complete, you might want to inform the user of the fact, or even change the user interface (UI) of the page. For example, you might want to display some graphic image that suggests a successful connection between two controls, or display a brief message, and then change the page display mode back to browse mode.
Page developers can associate a custom event handler with this event by adding the
OnWebPartsConnected attribute to the
<asp:webpartmanager> element in the page, and assigning a custom method name to the attribute.