private void CutNode(object sender, ExecutedRoutedEventArgs e)
{
if (curDbInfoTab.treeView1.IsInEditMode)
{
curDbInfoTab.treeView1.SelectedItem.EndEdit();
}
//如果己经有被剪切的节点，则取消它的下划线状态
if (cutNode != null && cutNode != curDbInfoTab.treeView1.SelectedItem)
{
cutNode.Strikethrough = false;
}
cutNode = curDbInfoTab.treeView1.SelectedItem as TreeViewIconsItem;
cutNode.Strikethrough = true;
cutNodeSourceTab = curDbInfoTab;
String info = "";
if (cutNode.HeaderText.Length > 30)
{
info = "节点：\"" + cutNode.HeaderText.Substring(0, 30) + "\"己被剪切";
}
else
{
info = "节点：\"" + cutNode.HeaderText + "\"己被剪切";
}
ShowInfo(info);
}
void DBtabContainer_TabPageClosed(object sender, TabPageClosedEventArgs e)
{
//保存被关闭的选项卡的数据
DBInfoTab closedTab = e.ClosedTabItem.Content as DBInfoTab;
//如果被关闭的是包容有被剪切节点的选项卡，则设置相关的变量为null
if (cutNodeSourceTab != null && cutNodeSourceTab == closedTab)
{
cutNodeSourceTab = null;
cutNode = null;
}
//从参数中移除本选项卡所对应的DbInfo对象
int index = SystemConfig.configArgus.DbInfos.IndexOf(closedTab.dbInfoObject);
if (index != -1)
{
SystemConfig.configArgus.DbInfos.RemoveAt(index);
}
SaveDbTabDataToDB(closedTab);
}
/// <summary>
/// 打开指定的数据库文件，创建新选项卡，装入数据，新创建的选项卡成为当前选项卡
/// </summary>
/// <param name="DBFileName"></param>
private void AddNewDbInfoTabAndLoadData(String DBFileName)
{
DatabaseInfo dbInfo = new DatabaseInfo()
{
DatabaseFilePath = DBFileName,
LastVisitNodePath = ""
};
SystemConfig.configArgus.DbInfos.Add(dbInfo);
//添加选项卡
DBInfoTab tab = new DBInfoTab(dbInfo);
DBtabContainer.Add(System.IO.Path.GetFileName(dbInfo.DatabaseFilePath), tab);
DBtabContainer.SelectedIndex = DBtabContainer.Items.Count - 1;
SystemConfig.configArgus.ActiveDBIndex = DBtabContainer.Items.Count - 1;
curDbInfoTab = tab;
//Note: 新加选项卡，会激发DBtabContainer的SelectedIndexChanged事件，在事件响应代码DBtabContainer_SelectionChanged（）
//中完成了从数据库中装载数据的工作，无需显示调用LoadCurrentTabDataFromDB();方法
}
private void DBtabContainer_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
//初始化时，此方法不做任何事，仅设置默认标题
if (DBtabContainer.SelectedIndex == -1)
{
this.Title = MainWindowDefaultTitle;
return;
}
//当TabControl的TabItem中放置有ComboBox控件时，ComboBox的SelectionChanged事件会触发
//TabControl的SelectionChanged事件，虽然可以通过在下层控件的事件响应过程中添加
//e.Handled = true阻止这一过程，但还是在此屏蔽掉此事件的响应代码，以免有漏网之鱼
if (e.AddedItems.Count == 1 && e.AddedItems[0].GetType().Name != "TabItem")
{
return;
}
curDbInfoTab = (DBtabContainer.Items[DBtabContainer.SelectedIndex] as TabItem).Content as DBInfoTab;
this.Title = "个人资料管理中心-" + curDbInfoTab.dbInfoObject.DatabaseFilePath;
if (curDbInfoTab.HasBeenLoadedFromDB == false)
{
//从数据库中装入数据
LoadCurrentTabDataFromDB();
}
else
{
String EFConnectString = DALConfig.getEFConnectionString(curDbInfoTab.dbInfoObject.DatabaseFilePath);
curDbInfoTab.treeView1.EFConnectionString = EFConnectString;
findNodesWindow.SetTree(curDbInfoTab.treeView1);
curDbInfoTab.RefreshDisplay();
}
//切换选项卡时，恢复状态栏默认显示文本
if (cutNode == null)
{
ShowInfo("就绪");
}
}
/// <summary>
/// 将指定选项卡的数据保存到数据库中
/// </summary>
/// <param name="infoTab"></param>
private void SaveDbTabDataToDB(DBInfoTab infoTab)
{
TreeViewIconsItem selectedItem = infoTab.treeView1.SelectedItem;
DatabaseInfo info = infoTab.dbInfoObject;
if (selectedItem != null)
{
info.LastVisitNodePath = selectedItem.Path;
IDataAccess accessobj = selectedItem.NodeData.AccessObject;
IDataInfo infoObj = selectedItem.NodeData.DataItem;
if (accessobj != null)
{
try
{
infoObj.RefreshMe();
accessobj.UpdateDataInfoObject(infoObj);
}
catch (Exception ex)
{
Dispatcher.Invoke(new Action(() => { MessageBox.Show(ex.ToString()); }));
}
}
}
}
/// <summary>
/// 将指定选项卡的数据保存到数据库中
/// </summary>
/// <param name="infoTab"></param>
private void SaveDbTabDataToDB(DBInfoTab infoTab)
{
TreeViewIconsItem selectedItem = infoTab.treeView1.SelectedItem;
DatabaseInfo info = infoTab.dbInfoObject;
if (selectedItem != null)
{
info.LastVisitNodePath = selectedItem.Path;
IDataAccess accessobj = selectedItem.NodeData.AccessObject;
IDataInfo infoObj = selectedItem.NodeData.DataItem;
if (accessobj != null)
{
try
{
infoObj.RefreshMe();
accessobj.UpdateDataInfoObject(infoObj);
}
catch (Exception ex)
{
Dispatcher.Invoke(new Action(() => { MessageBox.Show(ex.ToString()); }));
}
}
}
}
private void PasteNode(object sender, ExecutedRoutedEventArgs e)
{
if (curDbInfoTab.treeView1.IsInEditMode)
{
curDbInfoTab.treeView1.SelectedItem.EndEdit();
}
if (cutNode == null || cutNodeSourceTab == null)
{
return;
}
TreeViewIconsItem selectedNode = curDbInfoTab.treeView1.SelectedItem as TreeViewIconsItem;
if (selectedNode == cutNode)
{
return;
}
String newPath = "";
if (selectedNode == null)//如果目标选项卡中没有选中任何节点，则默认添加到根节点
{
newPath = "/" + cutNode.HeaderText + "/";
}
else
{
newPath = selectedNode.Path + cutNode.HeaderText + "/";
}
if (curDbInfoTab.treeView1.IsNodeExisted(newPath))
{
MessageBox.Show("在此处粘贴将导致两个节点拥有相同的路径，因此，请在其他地方粘贴");
return;
}
//在同一数据库中粘贴
if (curDbInfoTab == cutNodeSourceTab)
{
//先移除被剪切的子树
curDbInfoTab.treeView1.CutNode(cutNode);
curDbInfoTab.treeView1.PasteNode(cutNode, selectedNode);
curDbInfoTab.OnNodeMove(NodeMoveType.NodePaste);
}
else
{
//在不同的数据库中粘贴
String sourcePath = cutNode.Path;
String targetPath = "";
if (selectedNode != null)
{
targetPath = selectedNode.Path;
}
else
{
targetPath = "/";
}
//先移除源树中被剪切的子树
cutNodeSourceTab.treeView1.CutNode(cutNode);
//将剪切的节点子树追加到当前节点
curDbInfoTab.treeView1.PasteNodeCrossDB(cutNode, selectedNode);
//保存目标树结构
curDbInfoTab.treeView1.SaveToDB();
//将源树保存到数据库中
cutNodeSourceTab.treeView1.SaveToDB();
//更新所有粘贴节点的数据存取对象
String EFConnectionString = DALConfig.getEFConnectionString(curDbInfoTab.dbInfoObject.DatabaseFilePath);
if (selectedNode != null)
{
UpdateDataAcessObject(selectedNode, EFConnectionString);
}
else
{
UpdateDataAcessObject(cutNode, EFConnectionString);
}
//更新数据库中内容
NodeMoveBetweenDBManager nodeMoveManager = new NodeMoveBetweenDBManager(cutNodeSourceTab.dbInfoObject.DatabaseFilePath, curDbInfoTab.dbInfoObject.DatabaseFilePath);
nodeMoveManager.MoveNodeBetweenDB(sourcePath, targetPath);
}
//取消删除线显示
cutNode.Strikethrough = false;
cutNode = null;
cutNodeSourceTab = null;
if (curDbInfoTab.treeView1.SelectedItem != null)
{
curDbInfoTab.treeView1.SelectedItem.IsExpanded = true;
}
}
/// <summary>
/// 完成系统初始化功能
/// </summary>
private void Init()
{
//设置NodeFactory的主窗体引用，以便让它创建节点对象时，一并将主窗体引用传给节点
//从而允许节点调用主窗体的功能，此句代码必须在装入全树节点前完成，否则，节点的DataItem对象
//将无法引用到主窗体
NodeFactory._mainWindow = this;
ConfigArgus argu = new ConfigArgus();
tbVersionInfo.Text = String.Format("PersonalInfoForWPF ver: {0} 开发：金旭亮", ConfigArgus.version);
//如果找到了配置文件
if (File.Exists(SystemConfig.ConfigFileName))
{
tbInfo.Text = "正在加载配置文件……";
//定位到上次访问的节点
try
{
argu = DeepSerializer.BinaryDeserialize(SystemConfig.ConfigFileName) as ConfigArgus;
}
catch (Exception)
{
argu = null;
}
if (argu != null)
{
SystemConfig.configArgus = argu;
//设置树节点的默认字体大小
TreeViewIconsItem.TreeNodeDefaultFontSize = argu.TreeNodeDefaultFontSize;
}
findNodesWindow = new FindNodes();
//用于保存有效的数据库文件对象
List<DatabaseInfo> validDBInfos = new List<DatabaseInfo>();
//创建数据库选项卡
foreach (var dbinfo in argu.DbInfos)
{
if (File.Exists(dbinfo.DatabaseFilePath))
{
DBInfoTab tab = new DBInfoTab(dbinfo);
DBtabContainer.Add(System.IO.Path.GetFileName(dbinfo.DatabaseFilePath), tab);
validDBInfos.Add(dbinfo);
}
}
bool allDBAreOk = (argu.DbInfos.Count == validDBInfos.Count);
if (!allDBAreOk)
{
argu.DbInfos = validDBInfos;
}
if (DBtabContainer.Items.Count != 0)
{
//设置当前激活的卡片
if (argu.ActiveDBIndex < DBtabContainer.Items.Count && allDBAreOk)
{
DBtabContainer.SelectedIndex = argu.ActiveDBIndex;
}
else
{
argu.ActiveDBIndex = 0;
DBtabContainer.SelectedIndex = 0;
}
curDbInfoTab = (DBtabContainer.Items[argu.ActiveDBIndex] as TabItem).Content as DBInfoTab;
LoadCurrentTabDataFromDB();
}
else
{
tbInfo.Text = "未能找到上次打开的数据库，请从系统功能菜单中选择打开命令打开一个资料库";
}
}
else
{
tbInfo.Text = "请从系统功能菜单中选择打开命令打开一个资料库";
}
//响应用户点击不同选项卡的操作
DBtabContainer.SelectionChanged += DBtabContainer_SelectionChanged;
//关闭选项卡时，激发此事件
DBtabContainer.TabPageClosed += DBtabContainer_TabPageClosed;
}
void DBtabContainer_TabPageClosed(object sender, TabPageClosedEventArgs e)
{
//保存被关闭的选项卡的数据
DBInfoTab closedTab = e.ClosedTabItem.Content as DBInfoTab;
//如果被关闭的是包容有被剪切节点的选项卡，则设置相关的变量为null
if (cutNodeSourceTab != null && cutNodeSourceTab == closedTab)
{
cutNodeSourceTab = null;
cutNode = null;
}
//从参数中移除本选项卡所对应的DbInfo对象
int index = SystemConfig.configArgus.DbInfos.IndexOf(closedTab.dbInfoObject);
if (index != -1)
{
SystemConfig.configArgus.DbInfos.RemoveAt(index);
}
SaveDbTabDataToDB(closedTab);
}
private void DBtabContainer_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
//初始化时，此方法不做任何事，仅设置默认标题
if (DBtabContainer.SelectedIndex == -1)
{
this.Title = MainWindowDefaultTitle;
return;
}
//当TabControl的TabItem中放置有ComboBox控件时，ComboBox的SelectionChanged事件会触发
//TabControl的SelectionChanged事件，虽然可以通过在下层控件的事件响应过程中添加
//e.Handled = true阻止这一过程，但还是在此屏蔽掉此事件的响应代码，以免有漏网之鱼
if (e.AddedItems.Count == 1 && e.AddedItems[0].GetType().Name != "TabItem")
{
return;
}
curDbInfoTab = (DBtabContainer.Items[DBtabContainer.SelectedIndex] as TabItem).Content as DBInfoTab;
this.Title = "个人资料管理中心-" + curDbInfoTab.dbInfoObject.DatabaseFilePath;
if (curDbInfoTab.HasBeenLoadedFromDB == false)
{
//从数据库中装入数据
LoadCurrentTabDataFromDB();
}
else
{
String EFConnectString = DALConfig.getEFConnectionString(curDbInfoTab.dbInfoObject.DatabaseFilePath);
curDbInfoTab.treeView1.EFConnectionString = EFConnectString;
findNodesWindow.SetTree(curDbInfoTab.treeView1);
curDbInfoTab.RefreshDisplay();
}
//切换选项卡时，恢复状态栏默认显示文本
if (cutNode == null)
{
ShowInfo("就绪");
}
}
private void CutNode(object sender, ExecutedRoutedEventArgs e)
{
if (curDbInfoTab.treeView1.IsInEditMode)
{
curDbInfoTab.treeView1.SelectedItem.EndEdit();
}
//如果己经有被剪切的节点，则取消它的下划线状态
if (cutNode != null && cutNode != curDbInfoTab.treeView1.SelectedItem)
{
cutNode.Strikethrough = false;
}
cutNode = curDbInfoTab.treeView1.SelectedItem as TreeViewIconsItem;
cutNode.Strikethrough = true;
cutNodeSourceTab = curDbInfoTab;
String info = "";
if (cutNode.HeaderText.Length > 30)
{
info = "节点：\"" + cutNode.HeaderText.Substring(0, 30) + "\"己被剪切";
}
else
{
info = "节点：\"" + cutNode.HeaderText + "\"己被剪切";
}
ShowInfo(info);
}
/// <summary>
/// 打开指定的数据库文件，创建新选项卡，装入数据，新创建的选项卡成为当前选项卡
/// </summary>
/// <param name="DBFileName"></param>
private void AddNewDbInfoTabAndLoadData(String DBFileName)
{
DatabaseInfo dbInfo = new DatabaseInfo()
{
DatabaseFilePath = DBFileName,
LastVisitNodePath = ""
};
SystemConfig.configArgus.DbInfos.Add(dbInfo);
//添加选项卡
DBInfoTab tab = new DBInfoTab(dbInfo);
DBtabContainer.Add(System.IO.Path.GetFileName(dbInfo.DatabaseFilePath), tab);
DBtabContainer.SelectedIndex = DBtabContainer.Items.Count - 1;
SystemConfig.configArgus.ActiveDBIndex = DBtabContainer.Items.Count - 1;
curDbInfoTab = tab;
//Note: 新加选项卡，会激发DBtabContainer的SelectedIndexChanged事件，在事件响应代码DBtabContainer_SelectionChanged（）
//中完成了从数据库中装载数据的工作，无需显示调用LoadCurrentTabDataFromDB();方法
}
/// <summary>
/// 完成系统初始化功能
/// </summary>
private void Init()
{
//设置NodeFactory的主窗体引用，以便让它创建节点对象时，一并将主窗体引用传给节点
//从而允许节点调用主窗体的功能，此句代码必须在装入全树节点前完成，否则，节点的DataItem对象
//将无法引用到主窗体
NodeFactory._mainWindow = this;
ConfigArgus argu = new ConfigArgus();
tbVersionInfo.Text = String.Format("PersonalInfoForWPF ver: {0} 开发：金旭亮", ConfigArgus.version);
//如果找到了配置文件
if (File.Exists(SystemConfig.ConfigFileName))
{
tbInfo.Text = "正在加载配置文件……";
//定位到上次访问的节点
try
{
argu = DeepSerializer.BinaryDeserialize(SystemConfig.ConfigFileName) as ConfigArgus;
}
catch (Exception)
{
argu = null;
}
if (argu != null)
{
SystemConfig.configArgus = argu;
//设置树节点的默认字体大小
TreeViewIconsItem.TreeNodeDefaultFontSize = argu.TreeNodeDefaultFontSize;
}
findNodesWindow = new FindNodes();
//用于保存有效的数据库文件对象
List <DatabaseInfo> validDBInfos = new List <DatabaseInfo>();
//创建数据库选项卡
foreach (var dbinfo in argu.DbInfos)
{
if (File.Exists(dbinfo.DatabaseFilePath))
{
DBInfoTab tab = new DBInfoTab(dbinfo);
DBtabContainer.Add(System.IO.Path.GetFileName(dbinfo.DatabaseFilePath), tab);
validDBInfos.Add(dbinfo);
}
}
bool allDBAreOk = (argu.DbInfos.Count == validDBInfos.Count);
if (!allDBAreOk)
{
argu.DbInfos = validDBInfos;
}
if (DBtabContainer.Items.Count != 0)
{
//设置当前激活的卡片
if (argu.ActiveDBIndex < DBtabContainer.Items.Count && allDBAreOk)
{
DBtabContainer.SelectedIndex = argu.ActiveDBIndex;
}
else
{
argu.ActiveDBIndex = 0;
DBtabContainer.SelectedIndex = 0;
}
curDbInfoTab = (DBtabContainer.Items[argu.ActiveDBIndex] as TabItem).Content as DBInfoTab;
LoadCurrentTabDataFromDB();
}
else
{
tbInfo.Text = "未能找到上次打开的数据库，请从系统功能菜单中选择打开命令打开一个资料库";
}
}
else
{
tbInfo.Text = "请从系统功能菜单中选择打开命令打开一个资料库";
}
//响应用户点击不同选项卡的操作
DBtabContainer.SelectionChanged += DBtabContainer_SelectionChanged;
//关闭选项卡时，激发此事件
DBtabContainer.TabPageClosed += DBtabContainer_TabPageClosed;
}
private void PasteNode(object sender, ExecutedRoutedEventArgs e)
{
if (curDbInfoTab.treeView1.IsInEditMode)
{
curDbInfoTab.treeView1.SelectedItem.EndEdit();
}
if (cutNode == null || cutNodeSourceTab == null)
{
return;
}
TreeViewIconsItem selectedNode = curDbInfoTab.treeView1.SelectedItem as TreeViewIconsItem;
if (selectedNode == cutNode)
{
return;
}
String newPath = "";
if (selectedNode == null)//如果目标选项卡中没有选中任何节点，则默认添加到根节点
{
newPath = "/" + cutNode.HeaderText + "/";
}
else
{
newPath = selectedNode.Path + cutNode.HeaderText + "/";
}
if (curDbInfoTab.treeView1.IsNodeExisted(newPath))
{
MessageBox.Show("在此处粘贴将导致两个节点拥有相同的路径，因此，请在其他地方粘贴");
return;
}
//在同一数据库中粘贴
if (curDbInfoTab == cutNodeSourceTab)
{
//先移除被剪切的子树
curDbInfoTab.treeView1.CutNode(cutNode);
curDbInfoTab.treeView1.PasteNode(cutNode, selectedNode);
curDbInfoTab.OnNodeMove(NodeMoveType.NodePaste);
}
else
{
//在不同的数据库中粘贴
String sourcePath = cutNode.Path;
String targetPath = "";
if (selectedNode != null)
{
targetPath = selectedNode.Path;
}
else
{
targetPath = "/";
}
//先移除源树中被剪切的子树
cutNodeSourceTab.treeView1.CutNode(cutNode);
//将剪切的节点子树追加到当前节点
curDbInfoTab.treeView1.PasteNodeCrossDB(cutNode, selectedNode);
//保存目标树结构
curDbInfoTab.treeView1.SaveToDB();
//将源树保存到数据库中
cutNodeSourceTab.treeView1.SaveToDB();
//更新所有粘贴节点的数据存取对象
String EFConnectionString = DALConfig.getEFConnectionString(curDbInfoTab.dbInfoObject.DatabaseFilePath);
if (selectedNode != null)
{
UpdateDataAcessObject(selectedNode, EFConnectionString);
}
else
{
UpdateDataAcessObject(cutNode, EFConnectionString);
}
//更新数据库中内容
NodeMoveBetweenDBManager nodeMoveManager = new NodeMoveBetweenDBManager(cutNodeSourceTab.dbInfoObject.DatabaseFilePath, curDbInfoTab.dbInfoObject.DatabaseFilePath);
nodeMoveManager.MoveNodeBetweenDB(sourcePath, targetPath);
}
//取消删除线显示
cutNode.Strikethrough = false;
cutNode = null;
cutNodeSourceTab = null;
if (curDbInfoTab.treeView1.SelectedItem != null)
{
curDbInfoTab.treeView1.SelectedItem.IsExpanded = true;
}
}
