/// <summary>
/// Gets all items of specified SharePoint list using "My new connection". Called when the "Get list items" button is clicked.
/// Expects the CreateSharePointConnection method to be run first.
/// </summary>
private void GetListItems()
{
// Verify the list name has been provided.
string listName = txtListName.Text;
if (String.IsNullOrWhiteSpace(listName))
{
throw new CMSAPIExampleException("Empty value for List name is not allowed.");
}
// Get the SharePoint connection from DB
SharePointConnectionInfo connection = SharePointConnectionInfoProvider.GetSharePointConnectionInfo("MyNewConnection", SiteContext.CurrentSiteID);
if (connection == null)
{
throw new CMSAPIExampleException("SharePoint connection 'My new connection' was not found.");
}
// Convert SharePointConnectionInfo object into connection data
SharePointConnectionData connectionData = connection.ToSharePointConnectionData();
// Get list service implementation
ISharePointListService listService = SharePointServices.GetService <ISharePointListService>(connectionData);
try
{
// Get specified list's items
DataSet results = listService.GetListItems(listName);
if ((results.Tables.Count == 0) || (results.Tables[0].Rows.Count == 0))
{
throw new CMSAPIExampleException("No list's items were retrieved from SharePoint server.");
}
}
catch (Exception ex)
{
throw new CMSAPIExampleException(ex.Message);
}
}
/// <summary>
/// Retrieves requested data from SharePoint server.
/// Displays error message if not able to do so and returns null.
/// </summary>
/// <returns>Requested data, or null if something goes wrong.</returns>
private DataSet GetSharePointData()
{
// Data does not originate from cache
DataRetrievedFromServer = true;
DataSet result = null;
if (ConnectionInfo == null)
{
DisplayError(GetString("sharepoint.wp.datasource.noconnection"));
return(null);
}
try
{
ISharePointListService listService = SharePointServices.GetService <ISharePointListService>(ConnectionInfo.ToSharePointConnectionData());
if (Mode == MODE.LISTS)
{
result = listService.GetLists(ListType);
}
else
{
result = listService.GetListItems(ListTitle, FolderServerRelativeUrl, View, ListItemsSelection);
}
if (result != null && (result.Tables.Count == 0 || result.Tables[0].Columns.Count == 0))
{
result = null;
}
}
catch (SharePointServiceFactoryNotSupportedException)
{
// No service factory for given SharePoint version
DisplayError(GetString("sharepoint.versionnotsupported"));
}
catch (SharePointServiceNotSupportedException)
{
// No ISharePointListService implementation for SharePoint version
DisplayError(GetString("sharepoint.listsnotsupported"));
}
catch (SharePointConnectionNotSupportedException)
{
// The ISharePointListService implementation rejected connection data
DisplayError(GetString("sharepoint.invalidconfiguration"));
}
catch (SharePointCCSDKException ex)
{
DisplayError(GetString("sharepoint.ccsdk.idcrl.msoidclilerror"));
EventLogProvider.LogException("SharePoint", "DATASOURCE", ex);
}
catch (WebException ex)
{
if (ex.Status == WebExceptionStatus.ProtocolError)
{
// Connection established, but response indicates error condition
if (ex.Message.Contains("401"))
{
// Unauthorized.
DisplayError(GetString("sharepoint.protocolerror.unauthorized"));
}
else if (ex.Message.Contains("404"))
{
// SharePoint instance not found on given URL
DisplayError(GetString("sharepoint.protocolerror.notfound"));
}
else
{
// Some other protocol error
DisplayError(GetString("sharepoint.protocolerror"));
}
}
else if (ex.Status == WebExceptionStatus.NameResolutionFailure)
{
// Given site URL does not have a resolution
DisplayError(GetString("sharepoint.nameresolutionfailure"));
}
else
{
DisplayError(GetString("sharepoint.unknownerror"));
EventLogProvider.LogException("SharePoint", "DATASOURCE", ex);
}
}
catch (SharePointServerException ex)
{
DisplayError(String.Format(GetString("sharepoint.servererror"), ex.Message));
EventLogProvider.LogException("SharePoint", "DATASOURCE", ex);
}
catch (Exception ex)
{
DisplayError(GetString("sharepoint.unknownerror"));
EventLogProvider.LogException("SharePoint", "DATASOURCE", ex);
}
return(result);
}