private void Fetch(Context sourceContext, List <string> listNames)
{
Web sourceContextWeb = sourceContext.Web;
sourceContext.Load(sourceContextWeb.Lists, lists => lists.IncludeWithDefaultProperties());
sourceContext.ExecuteQuery();
foreach (List list in sourceContextWeb.Lists)
{
if (list.BaseType != (int)BaseType.GenericList)
{
continue;
}
string listTitle = list.Title;
if (!listNames.Contains(listTitle))
{
continue;
}
string listDescription = list.Description;
int listBaseTemplate = list.BaseTemplate;
ListInformation listInformation = new ListInformation()
{
Title = listTitle,
Description = listDescription,
TemplateType = listBaseTemplate,
Fields = sourceContext.GetFields(list),
ListItems = sourceContext.GetListItems(list),
};
listInformationCollection[listTitle] = listInformation;
}
}
public void Import(ImportContextBase context)
{
Context sourceContext = context.SourceContext;
ListImportContext listImportContext = context as ListImportContext;
Fetch(sourceContext, listImportContext.ListNames);
Context targetContext = context.TargetContext;
foreach (var listTitle in listInformationCollection.Keys)
{
ListInformation listInformation = listInformationCollection[listTitle];
targetContext.CreateList(listInformation);
if (context.Include.Fields)
{
targetContext.AddFields(listTitle, listInformation.Fields);
}
if (context.Include.ListItems)
{
foreach (ListItem listItem in listInformation.ListItems)
{
Dictionary <string, string> sourceFieldValues = listItem.FieldValuesAsHtml.FieldValues;
Dictionary <string, string> targetFieldValues = new Dictionary <string, string>();
foreach (FieldInfo field in listInformation.Fields)
{
if (field.Type == FieldType.Counter || field.Type == FieldType.Computed || field.Type == FieldType.Attachments || field.Type == FieldType.Calculated || field.Type == FieldType.ModStat || field.Type == FieldType.User)
{
continue;
}
string key = field.InternalName;
string value = sourceFieldValues[key];
if (!string.IsNullOrEmpty(value))
{
targetFieldValues.Add(key, value);
}
}
targetContext.AddListItem(listTitle, targetFieldValues);
break;
}
}
}
;
}