Begins asynchronous ItemExists operation. Detects whether an item with specified ID still exists.

Namespace:  Rebex.Legacy
Assembly:  Rebex.Ews (in Rebex.Ews.dll)

Syntax

Visual Basic
Public Shared Function BeginItemExists ( _
	instance As Ews, _
	itemId As EwsItemId, _
	callback As AsyncCallback, _
	state As Object _
) As IAsyncResult
C#
public static IAsyncResult BeginItemExists(
	Ews instance,
	EwsItemId itemId,
	AsyncCallback callback,
	Object state
)

Parameters

instance
Type: Rebex.Net..::..Ews
Instance of Ews.
itemId
Type: Rebex.Net..::..EwsItemId
ID of an item.
callback
Type: System..::..AsyncCallback
An optional asynchronous callback to be called when the operation is complete.
state
Type: System..::..Object
A user-provided object that identifies this particular asynchronous operation.

Return Value

An IAsyncResult that references the asynchronous operation.

Remarks

In builds for .NET 4.0 and higher, this method is available as an extension method. Add 'using Rebex.Legacy' (C#) or 'Import Rebex.Legacy' (VB.NET) to your code in order to use it.

Version Information

.NET Framework

Supported in: 4.8, 4.7.x, 4.6.x, 4.5.x, 4.0

.NET Standard 2.0

Supported in: .NET Core 3.1, 3.0, 2.1; Xamarin.Android 9.1 (or higher); Xamarin.iOS 10.3 (or higher)

See Also