private void tree1_DragOver(object sender, DragEventArgs e)
{
try
{
TreeNodeBase selectedItem = ((FrameworkElement)e.OriginalSource).DataContext as TreeNodeBase;
if (!(selectedItem is DBModuleNode) && selectedItem is 数据模块Node)
{
//检查数据库是否相同
if (((数据模块Node)selectedItem).Module == null ||
((DBModuleNode)m_drogItem).Module.DatabaseID != ((数据模块Node)selectedItem).Module.DatabaseID)
{
e.Effects = DragDropEffects.None;
e.Handled = true;
return;
}
e.Effects = DragDropEffects.Move;
}
else if (selectedItem is DBModuleNode && (((DBModuleNode)selectedItem).Module.IsFolder == true))
{
//检查数据库是否相同
if (((DBModuleNode)m_drogItem).Module.DatabaseID != ((DBModuleNode)selectedItem).Module.DatabaseID)
{
e.Effects = DragDropEffects.None;
e.Handled = true;
return;
}
//判断拖动者是否是目标者的父节点
bool canDrog = selectedItem != m_drogItem;
if (canDrog)
{
for (DBModuleNode parent = selectedItem.Parent as DBModuleNode; parent != null; parent = parent.Parent as DBModuleNode)
{
if (parent == selectedItem)
{
canDrog = false;
break;
}
}
}
if (canDrog)
{
e.Effects = DragDropEffects.Move;
selectedItem.IsExpanded = true;
}
else
{
e.Effects = DragDropEffects.None;
}
}
else if (selectedItem is DBModuleNode && (((DBModuleNode)selectedItem).Module.IsFolder == false))
{
e.Effects = DragDropEffects.None;
}
else
{
e.Effects = DragDropEffects.None;
}
e.Handled = true;
}
catch
{
}
}
private void MenuItem_重命名模块_Click_1(object sender, RoutedEventArgs e)
{
DBModuleNode modulenode = (DBModuleNode)tree1.SelectedItem;
modulenode.Rename();
}
private void tree1_Drop(object sender, DragEventArgs e)
{
try
{
int parentid = -1;
TreeNodeBase selectedItem = ((FrameworkElement)e.OriginalSource).DataContext as TreeNodeBase;
if (!(selectedItem is DBModuleNode) && selectedItem is 数据模块Node)
{
//检查数据库是否相同
if (((数据模块Node)selectedItem).Module == null ||
((DBModuleNode)m_drogItem).Module.DatabaseID != ((数据模块Node)selectedItem).Module.DatabaseID)
{
e.Effects = DragDropEffects.None;
e.Handled = true;
return;
}
parentid = 0;
}
else if (selectedItem is DBModuleNode && (((DBModuleNode)selectedItem).Module.IsFolder == true))
{
//检查数据库是否相同
if (((DBModuleNode)m_drogItem).Module.DatabaseID != ((DBModuleNode)selectedItem).Module.DatabaseID)
{
e.Effects = DragDropEffects.None;
e.Handled = true;
return;
}
//判断拖动者是否是目标者的父节点
bool canDrog = selectedItem != m_drogItem;
if (canDrog)
{
for (DBModuleNode parent = selectedItem.Parent as DBModuleNode; parent != null; parent = parent.Parent as DBModuleNode)
{
if (parent == selectedItem)
{
canDrog = false;
break;
}
}
}
if (canDrog)
{
parentid = ((DBModuleNode)selectedItem).Module.id.Value;
}
}
if (parentid >= 0 && (((DBModuleNode)m_drogItem).Module.parentID != parentid))
{
Helper.Client.InvokeSync <string>("ChangeModuleParent", ((DBModuleNode)m_drogItem).Module.id.Value, parentid);
((DBModuleNode)m_drogItem).Module.parentID = parentid;
m_drogItem.Parent.Children.Remove(m_drogItem);
selectedItem.Children.Add(m_drogItem);
m_drogItem.Parent = selectedItem;
}
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message);
}
finally
{
e.Effects = DragDropEffects.None;
e.Handled = true;
m_drogItem = null;
}
}
private void MenuItem_删除目录_Click_1(object sender, RoutedEventArgs e)
{
DBModuleNode modulenode = (DBModuleNode)tree1.SelectedItem;
modulenode.Delete();
}
