public NodeDataObject ChangeTo(NodeDataObject sourceObject)
{
NodeDataObject dataObject = NodeFactory.CreateDataInfoNode("DetailText");
dataObject.DataItem.Path = sourceObject.DataItem.Path;
//在数据库中创建对象
dataObject.AccessObject.Create(dataObject.DataItem);
return dataObject;
}
public NodeDataObject ChangeTo(NodeDataObject sourceObject,String EFConnectionString)
{
NodeDataObject dataObject = NodeFactory.CreateDataInfoNode("OnlyText", EFConnectionString);
dataObject.DataItem.Path = sourceObject.DataItem.Path;
//在数据库中删除记录
sourceObject.AccessObject.DeleteDataInfoObject(sourceObject.DataItem);
return dataObject;
}
public InterfaceLibrary.NodeDataObject ChangeTo(InterfaceLibrary.NodeDataObject sourceObject, String EFConnectionString)
{
NodeDataObject dataObject = NodeFactory.CreateDataInfoNode("Folder", EFConnectionString);
dataObject.DataItem.Path = sourceObject.DataItem.Path;
//在数据库中创建对象
dataObject.AccessObject.Create(dataObject.DataItem);
return(dataObject);
}
public InterfaceLibrary.NodeDataObject ChangeTo(InterfaceLibrary.NodeDataObject sourceObject, String EFConnectionString)
{
NodeDataObject dataObject = NodeFactory.CreateDataInfoNode("OnlyText", EFConnectionString);
dataObject.DataItem.Path = sourceObject.DataItem.Path;
//在数据库中删除记录
sourceObject.AccessObject.DeleteDataInfoObject(sourceObject.DataItem);
return(dataObject);
}
public InterfaceLibrary.NodeDataObject ChangeTo(InterfaceLibrary.NodeDataObject sourceObject, String EFConnectionString)
{
FolderInfo folderInfo = sourceObject.DataItem as FolderInfo;
NodeDataObject dataObject = NodeFactory.CreateDataInfoNode("DetailText", EFConnectionString);
DetailTextInfo detailInfo = dataObject.DataItem as DetailTextInfo;
detailInfo.Path = sourceObject.DataItem.Path;
detailInfo.Text = folderInfo.Text;
detailInfo.RTFText = folderInfo.RTFText;
//在数据库中删除记录
sourceObject.AccessObject.DeleteDataInfoObject(folderInfo);
//在数据库中创建对象
dataObject.AccessObject.Create(detailInfo);
return(dataObject);
}
/// <summary>
/// 依据数据库连接字串（EntityFramework格式）创建合适的IDataAcess对象
/// </summary>
/// <param name="NodeType"></param>
/// <param name="EFConnectionString"></param>
/// <returns></returns>
public static IDataAccess CreateNodeAccessObject(String NodeType,String EFConnectionString)
{
NodeDataObject nodeDataObject = new NodeDataObject();
if (NodeType == "OnlyText")
{
return null;
}
if (NodeType == "Folder")
{
return new FolderAccess(EFConnectionString);
}
if (NodeType == "DetailText")
{
return new DetailTextAccess(EFConnectionString);
}
return null;
}
/// <summary>
/// 依据节点类型创建"空白"的数据信息对象，其HasBeenLoadFromStorage属性为false
/// （无需数据存储的节点，如OnlyText例此，其HasBeenLoadFromStorage始终为true）
/// </summary>
/// <param name="NodeType"></param>
/// <returns></returns>
public static NodeDataObject CreateDataInfoNode(String NodeType,String EFConnectionString)
{
NodeDataObject nodeDataObject = new NodeDataObject();
if (NodeType == "OnlyText")
{
nodeDataObject.DataItem = new OnlyTextInfo() { MainWindow=_mainWindow };
nodeDataObject.AccessObject = null;
}
if (NodeType == "Folder")
{
FolderInfo info = new FolderInfo() { MainWindow = _mainWindow };
FolderAccess access = new FolderAccess(EFConnectionString) ;
info.SetRootControlDataAccessObj(access);
nodeDataObject.DataItem =info ;
//设置数据未装入标记
nodeDataObject.DataItem.HasBeenLoadFromStorage = false;
nodeDataObject.AccessObject =access ;
}
if (NodeType == "DetailText")
{
DetailTextInfo info = new DetailTextInfo() { MainWindow = _mainWindow };
DetailTextAccess accessObj= new DetailTextAccess(EFConnectionString);
info.SetRootControlDataAccessObj(accessObj);
nodeDataObject.DataItem=info;
//设置数据未装入标记
nodeDataObject.DataItem.HasBeenLoadFromStorage = false;
nodeDataObject.AccessObject = accessObj;
}
return nodeDataObject;
}
/// <summary>
/// 依据节点类型创建"空白"的数据信息对象，其HasBeenLoadFromStorage属性为false
/// （无需数据存储的节点，如OnlyText例此，其HasBeenLoadFromStorage始终为true）
/// </summary>
/// <param name="NodeType"></param>
/// <returns></returns>
public static NodeDataObject CreateDataInfoNode(String NodeType)
{
NodeDataObject nodeDataObject = new NodeDataObject();
if (NodeType == "OnlyText")
{
nodeDataObject.DataItem = new OnlyTextInfo();
nodeDataObject.AccessObject = null;
}
if (NodeType == "Folder")
{
nodeDataObject.DataItem = new FolderInfo();
//设置数据未装入标记
nodeDataObject.DataItem.HasBeenLoadFromStorage = false;
nodeDataObject.AccessObject = new FolderAccess();
}
if (NodeType == "DetailText")
{
nodeDataObject.DataItem=new DetailTextInfo();
//设置数据未装入标记
nodeDataObject.DataItem.HasBeenLoadFromStorage = false;
nodeDataObject.AccessObject=new DetailTextAccess();
}
return nodeDataObject;
}
/// <summary>
/// 添加节点
/// 成功返回新节点，不成功，返回null
/// 新节点自动展开且选中
/// </summary>
/// <param name="parent"></param>
/// <param name="nodeText"></param>
/// <param name="nodeIcon"></param>
/// <returns></returns>
private TreeViewIconsItem addNode(AddNodeCategory addType, TreeViewIconsItem selectedNode, String nodeText, NodeDataObject nodeDataObject)
{
if (selectedNode != null)
{
selectedNode.IsExpanded = true;
}
TreeViewIconsItem treeNode = new TreeViewIconsItem(this, nodeDataObject);
treeNode.HeaderText = nodeText;
treeNode.Icon = nodeDataObject.DataItem.NormalIcon;
//自动展开
treeNode.IsExpanded = true;
switch (addType)
{
case AddNodeCategory.AddRoot:
treeNode.Path = "/" + nodeText + "/";
nodeDataObject.DataItem.Path = treeNode.Path;
tree.Items.Add(treeNode);
nodesManager.nodes.Add(treeNode);
break;
case AddNodeCategory.AddChild:
if (selectedNode != null)
{
treeNode.Path = selectedNode.Path + nodeText + "/";
nodeDataObject.DataItem.Path = treeNode.Path;
selectedNode.Items.Add(treeNode);
nodesManager.nodes.Add(treeNode);
}
else
{
return null;
}
break;
case AddNodeCategory.AddSibling:
if (selectedNode != null && selectedNode.Parent != null)
{
//如果选中节点是顶层节点
if (selectedNode.Parent == tree)
{
treeNode.Path = "/" + nodeText + "/";
nodeDataObject.DataItem.Path = treeNode.Path;
tree.Items.Add(treeNode);
}
else
{
//不是顶层节点
TreeViewIconsItem parent = selectedNode.Parent as TreeViewIconsItem;
treeNode.Path = parent.Path + nodeText + "/";
nodeDataObject.DataItem.Path = treeNode.Path;
parent.Items.Add(treeNode);
}
nodesManager.nodes.Add(treeNode);
}
else //当前没有选中节点或选中节点没有父亲
{
return null;
}
break;
default:
break;
}
if (_autoSelectNewNode)
{
treeNode.IsSelected = true;
}
//更新树的存储
String treeXml = saveToXmlString();
MainTreeRepository.SaveTree(treeXml);
return treeNode;
}
/// <summary>
/// 添加兄弟节点，如果参数中有为null或空串的，或者当前TreeView中没有选中的节点，返回null
/// </summary>
/// <param name="nodeText"></param>
/// <param name="nodeIcon"></param>
/// <returns></returns>
public TreeViewIconsItem AddSibling(String nodeText, NodeDataObject nodeDataObject)
{
if (String.IsNullOrEmpty(nodeText) || tree.SelectedItem == null)
{
return null;
}
return addNode(AddNodeCategory.AddSibling, tree.SelectedItem as TreeViewIconsItem, nodeText, nodeDataObject);
}
/// <summary>
/// 添加根节点，如果参数中有为null或空串的，返回null
/// </summary>
/// <param name="nodeText"></param>
/// <param name="nodeIcon"></param>
/// <returns></returns>
public TreeViewIconsItem AddRoot(String nodeText, NodeDataObject nodeDataObject)
{
if (String.IsNullOrEmpty(nodeText) )
{
return null;
}
return addNode(AddNodeCategory.AddRoot, null, nodeText, nodeDataObject);
}