public Document FirstDocument(PLMPackEntities db)
{
TreeNodeDocument treeNodeDoc = db.TreeNodeDocuments.Single(tnd => tnd.TreeNodeId == this.Id);
return(db.Documents.Single(d => d.Id == treeNodeDoc.DocumentId));
/*
* get
* {
* if (TreeNodeDocuments.Count > 0)
* return TreeNodeDocuments.First().Document;
* else
* return null;
* }
*/
}
public TreeNode InsertDocument(PLMPackEntities db, string grpId
, string name, string description
, string docType, Guid docGuid, string docExt
, Thumbnail thumb)
{
// create TreeNode
TreeNode tn = InsertBranch(db, grpId, name, description, thumb);
// create document
Document doc = Document.CreateNew(db, grpId
, docType
, name, description
, docGuid, docExt);
// create treeNode document
TreeNodeDocument tnd = new TreeNodeDocument();
tnd.TreeNodeId = tn.Id;
tnd.DocumentId = doc.Id;
db.TreeNodeDocuments.Add(tnd);
db.SaveChanges();
return(TreeNode.GetById(db, Guid.Parse(tn.Id)));
}