DataDrivenAdapterBase.UnregisterEventListenerBase Method (String, String, EventHandler<ControlChangedEventArgs>)

 

Applies To: Dynamics 365 (online), Dynamics 365 (on-premises), Dynamics CRM 2013, Dynamics CRM 2015, Dynamics CRM 2016

Removes the specified listenerCallback from the internal list of registered listeners. Once unregistered, RaiseEvent no longer can be used to raise the event.

Namespace:   Microsoft.Uii.HostedApplicationToolkit.DataDrivenAdapter
Assembly:  Microsoft.Uii.HostedApplicationToolkit.DataDrivenAdapter (in Microsoft.Uii.HostedApplicationToolkit.DataDrivenAdapter.dll)

Syntax

protected bool UnregisterEventListenerBase(
    string eventName,
    string controlName,
    EventHandler<ControlChangedEventArgs> listenerCallback
)

Protected Function UnregisterEventListenerBase (
    eventName As String,
    controlName As String,
    listenerCallback As EventHandler(Of ControlChangedEventArgs)
) As Boolean

Parameters

• eventName
  Type: System.String

  Specifies the name of the event.

• controlName
  Type: System.String

  Specifies the control name. Event listener registration can be scoped at the data-driven adapter control level (specify blank or null to omit).

• listenerCallback
  Type: System.EventHandler<ControlChangedEventArgs>

  Specifies the callback associated with the listener.

Return Value

Type: System.Boolean

Returns true when unregistration was successful (duplicate unregistration attempts return false).

Exceptions

Exception	Condition
ArgumentNullException	EventName and ListenerCallback must not be null.

See Also

DataDrivenAdapterBase Class
Microsoft.Uii.HostedApplicationToolkit.DataDrivenAdapter Namespace

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