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

 

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

Facilitates explicit data-driven adapter event listener unregistration. Called for every registered event on Dispose.

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

Syntax

public abstract bool UnregisterEventListener(
    string eventName,
    string controlName,
    EventHandler<ControlChangedEventArgs> listenerCallback
)

Public MustOverride Function UnregisterEventListener (
    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>

  Callback associated with the listener.

Return Value

Type: System.Boolean

Returns true if the 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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