SPList.GetChanges - Méthode (SPChangeToken)

Returns a collection of changes starting from a particular point in the change log.

Espace de noms :  Microsoft.SharePoint
Assembly :  Microsoft.SharePoint (dans Microsoft.SharePoint.dll)

Syntaxe

'Déclaration
Public Function GetChanges ( _
    changeToken As SPChangeToken _
) As SPChangeCollection
'Utilisation
Dim instance As SPList
Dim changeToken As SPChangeToken
Dim returnValue As SPChangeCollection

returnValue = instance.GetChanges(changeToken)

public SPChangeCollection GetChanges(
    SPChangeToken changeToken
)

Paramètres

• changeToken
  Type : Microsoft.SharePoint.SPChangeToken

  The starting date and time. To start at the beginning of the change log, set this value to une référence Null (Rien dans Visual Basic).

Valeur renvoyée

Type : Microsoft.SharePoint.SPChangeCollection
The changes that have occurred in the list since the date and time specified by changeToken.

Exceptions

Remarques

You can get an SPChangeToken object to pass as an argument to this method by extracting one from the ChangeToken property of the last change returned by a previous call to the GetChanges method. Or, you can use the SPChangeToken constructor to create a new change token.

Exemples

The following example is a console application that demonstrates how to get all changes in the log. The program loops while getting changes in batches and breaks out of the loop when it retrieves a collection with zero members, signifying that it has reached the end of the list.

using System;
using Microsoft.SharePoint;

namespace Test
{
   class ConsoleApp
   {
      static void Main(string[] args)
      {
         using (SPSite siteCollection = new SPSite("https://localhost"))
         {
            using (SPWeb webSite = siteCollection.OpenWeb())
            {
               // Get a list.
               SPList list = webSite.Lists[0];

               int total = 0;
               SPChangeToken token = null;

               // Get the first batch of changes.
               SPChangeCollection changes = list.GetChanges(token);

               // Loop until we reach the end of the log.
               while (changes.Count > 0)
               {
                  total += changes.Count;

                  // Go get another batch.
                  token = changes.LastChangeToken;
                  changes = list.GetChanges(token);
               }

               Console.WriteLine("Total of {0:#,#} changes to {1} list", total, list.Title);
            }
         }
         Console.Write("\nPress ENTER to continue...");
         Console.ReadLine();
      }
   }
}

Imports System
Imports Microsoft.SharePoint

Module ConsoleApp
   Sub Main()
      Using siteCollection As SPSite = New SPSite("https://localhost")
         Using webSite As SPWeb = siteCollection.OpenWeb()

            ' Get a list.
            Dim list As SPList = webSite.Lists(0)

            Dim total As Integer = 0
            Dim token As SPChangeToken = Nothing

            ' Get the first batch of changes.
            Dim changes As SPChangeCollection = list.GetChanges(token)

            ' Loop until we reach the end of the log.
            While changes.Count > 0

               total += changes.Count

               ' Go get another batch of changes starting where we left off.
               token = changes.LastChangeToken
               changes = list.GetChanges(token)

            End While

            Console.WriteLine("Total of {0:#,#} changes to {1} list", total, List.Title)

         End Using
      End Using

      Console.Write(vbCrLf + "Press ENTER to continue...")
      Console.ReadLine()

   End Sub
End Module

Voir aussi

Référence

SPList classe

SPList - Membres

GetChanges - Surcharge

Microsoft.SharePoint - Espace de noms

Autres ressources

Using the Change Log