public ListItemCollection GetListItems(string listName,
string viewName,
string query,
IEnumerable <string> viewFields,
bool splitMetaInfo,
int rowLimit,
QueryOptions queryOptions)
{
if (String.IsNullOrEmpty(listName))
{
throw new ArgumentNullException("listName");
}
XmlDocument viewDoc = new XmlDocument();
XmlElement viewFieldsNode = viewDoc.CreateElement("ViewFields");
if (splitMetaInfo)
{
viewFieldsNode.SetAttribute("Properties", "TRUE");
}
foreach (string field in viewFields)
{
XmlElement fieldRef = viewDoc.CreateElement("FieldRef");
fieldRef.SetAttribute("Name", field);
viewFieldsNode.AppendChild(fieldRef);
}
XmlDocument queryDoc = null;
if (!String.IsNullOrEmpty(query))
{
queryDoc = new XmlDocument();
queryDoc.LoadXml(query);
}
XmlNode response = listService.GetListItems(
listName,
viewName,
queryDoc,
viewFieldsNode,
rowLimit.ToString(),
queryOptions.GetCamlQueryOptions(),
null);
return(response.GetXElement().GetCamlListItems());
}
public ChangeBatch GetListItemChangesSinceToken(
string listName,
string viewName,
string query,
IEnumerable <string> viewFields,
bool splitMetaInfo,
int rowLimit,
QueryOptions queryOptions,
string changeToken)
{
if (String.IsNullOrEmpty(listName))
{
throw new ArgumentNullException("listName");
}
XmlDocument viewDoc = new XmlDocument();
XmlElement viewFieldsNode = viewDoc.CreateElement("ViewFields");
if (splitMetaInfo)
{
viewFieldsNode.SetAttribute("Properties", "TRUE");
}
foreach (string field in viewFields)
{
XmlElement fieldRef = viewDoc.CreateElement("FieldRef");
fieldRef.SetAttribute("Name", field);
viewFieldsNode.AppendChild(fieldRef);
}
XmlDocument queryDoc = null;
if (!String.IsNullOrEmpty(query))
{
queryDoc = new XmlDocument();
queryDoc.LoadXml(query);
}
XmlNode response = listService.GetListItemChangesSinceToken(
listName,
viewName,
queryDoc,
viewFieldsNode,
rowLimit.ToString(),
queryOptions.GetCamlQueryOptions(),
changeToken,
null);
ChangeBatch batch = response.GetXElement().GetCamlChangeBatch();
// catch the case where no changes in list returns the same token
if (batch.ChangeLog.Count == 0 &&
batch.NextChangeBatch == changeToken)
{
// re-query with empty token in order to get the very latest change token
// and avoid token expiration
XmlNode dummyResponse =
listService.GetListItemChangesSinceToken(
listName,
viewName,
queryDoc,
viewFieldsNode,
"10",
queryOptions.GetCamlQueryOptions(),
null,
null);
ChangeBatch batch2 = response.GetXElement().GetCamlChangeBatch();
batch.ChangeLog.NextLastChangeToken = batch2.ChangeLog.NextLastChangeToken;
}
return(batch);
}