Question

I have an Event Receiver that will fire when a SPListItem in a SPList is updated. I’m using the ItemUpdated() Event.

I want to get the values from before the event so I can compare which fields that have been edited.

How do I do that?

if (properties.ListTitle == "Lista")
            {
                if (properties.AfterProperties["Start Time"].ToString() != properties.ListItem["Start Time"].ToString())
                {
                    string s = "hej";
                }
            }

            try
            {
                // ID for the site from the properties object
                Guid siteId = properties.SiteId;
                // ID for the list from the properties object
                Guid listId = properties.ListId;
                // ID for the list item from the properties object
                int listItemId = properties.ListItemId;

                SPSecurity.RunWithElevatedPrivileges(delegate()
                          {
                           // Code stuff
                          });

Answer 1

     if (properties.ListTitle == "ListName")
    {
         //AfterProperties gives new value and ListItem gives the previously stored
         if(properties.AfterProperties["ColumnName"].ToString()!=properties.ListItem["ColumnName"].ToString())
         //Your code Here
    }