Display Unsupported Browser Error via OOB control in SharePoint

SharePoint 2010 will support many major browsers including IE7, IE8, FF3.5 and Safari4, but there is one browser that will not be supported by the out of the box SharePoint 2010 experience: Internet Explorer 6! 

How can we handle this gracefully? Microsoft again comes to the rescue with a SharePoint Control to help.

<SharePoint:WarnOnUnsupportedBrowsers runat="server"/>

If you place this control at the bottom of your master page, IE6 users will be greeted with a message like this:

Happy Coding !!!!!

SPChangeQuery Class in SharePoint

Gets the changes to the list from the change log as filtered by the specified query.

using (SPSite siteCollection = new SPSite("http://localhost"))
         {
            using (SPWeb webSite = siteCollection.OpenWeb())
            {
               // Get a list.
               SPList list = webSite.Lists[0];

               // Construct a query.
               SPChangeQuery query = new SPChangeQuery(false,  // limit object types
                                                       false); // limit change types

               // Specify the object type. 
               query.Item = true;

               // Specify change types. 
               query.Add = true;
               query.Delete = true;
               query.Update = true;

               SPTimeZone timeZone = webSite.RegionalSettings.TimeZone;
               int total = 0;

               // Loop until we reach the end of the log.
               while (true)
               {
                  SPChangeCollection changes = list.GetChanges(query);

                  total += changes.Count;

                  // Print info about each change to the console.
                  foreach (SPChangeItem change in changes)
                  {
                     // Get the item name.
                     string itemName = String.Empty;
                     SPListItem item = null;
                     try
                     {
                        item = list.GetItemByUniqueId(change.UniqueId);
                        itemName = item.Name;
                     }
                     catch (ArgumentException)
                     {
                        itemName = "Unknown";
                     }

                     Console.WriteLine("\nDate: {0}",
                         timeZone.UTCToLocalTime(change.Time).ToString());
                     Console.WriteLine("Change: {0}", change.ChangeType);
                     Console.WriteLine("Item: {0}", itemName);

                  }

                  // Break out of loop if we have the last batch.
                  if (changes.Count < query.FetchLimit)
                     break;

                  // Otherwise, go get another batch.
                  query.ChangeTokenStart = changes.LastChangeToken;
               }

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