ExchangeServiceBinding.BeginUpdateItem Method
The BeginUpdateItem method is used to begin an asynchronous UpdateItem call.
Namespace:  ExchangeWebServices
Assembly:  EWS (in EWS.dll)
Syntax
'Declaration
Public Function BeginUpdateItem ( _
    UpdateItem1 As UpdateItemType, _
    callback As AsyncCallback, _
    asyncState As Object _
) As IAsyncResult
'Usage
Dim instance As ExchangeServiceBinding
Dim UpdateItem1 As UpdateItemType
Dim callback As AsyncCallback
Dim asyncState As Object
Dim returnValue As IAsyncResult
returnValue = instance.BeginUpdateItem(UpdateItem1, _
    callback, asyncState)
public IAsyncResult BeginUpdateItem(
    UpdateItemType UpdateItem1,
    AsyncCallback callback,
    Object asyncState
)
Parameters
- UpdateItem1
Type: ExchangeWebServices.UpdateItemType 
- callback
Type: System.AsyncCallback 
- asyncState
Type: System.Object 
Return Value
Type: System.IAsyncResult
The BeginUpdateItem method returns an IAsyncResult object.