EasyUA Reference
BeginHistoryDeleteAtTime Method
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EasyUA Assembly > Advosol.EasyUA Namespace > Session Class : BeginHistoryDeleteAtTime Method

Visual Basic (Usage)
C#

nodesToDelete: The variables with history to delete, including the timestamps for the data to be deleted.

settings: The general settings for the request. If null, the default settings from the property #DefaultRequestSettings are used.

callback: The callback to use when the async call completes.

userData: The user data that is passed to the callback.

Begins an operation to delete the history for a list of variables for the passed timestamps.

Syntax

Visual Basic (Usage)	Copy Code
Dim instance As Session Dim nodesToDelete As IList(Of DeleteAtTimeDetails) Dim settings As RequestSettings Dim callback As AsyncCallback Dim userData As Object Dim value As IAsyncResult value = instance.BeginHistoryDeleteAtTime(nodesToDelete, settings, callback, userData)

Visual Basic (Usage)

Copy Code

Dim instance As Session
Dim nodesToDelete As IList(Of DeleteAtTimeDetails)
Dim settings As RequestSettings
Dim callback As AsyncCallback
Dim userData As Object
Dim value As IAsyncResult
 
value = instance.BeginHistoryDeleteAtTime(nodesToDelete, settings, callback, userData)

C#
public IAsyncResult BeginHistoryDeleteAtTime( IList<DeleteAtTimeDetails> nodesToDelete, RequestSettings settings, AsyncCallback callback, object userData )

public IAsyncResult BeginHistoryDeleteAtTime( 
   IList<DeleteAtTimeDetails> nodesToDelete,
   RequestSettings settings,
   AsyncCallback callback,
   object userData
)

Parameters

nodesToDelete: The variables with history to delete, including the timestamps for the data to be deleted.
settings: The general settings for the request. If null, the default settings from the property #DefaultRequestSettings are used.
callback: The callback to use when the async call completes.
userData: The user data that is passed to the callback.

Return Value

An object which must be passed to the EndHistoryDeleteAtTime method.

Requirements

Target Platforms: Windows 7/8/10, Windows Server 2003/2008/2012/2015, .NET4.x

Syntax

Parameters

Return Value

Requirements

See Also

Reference