void txtTitle_KeyDown(object sender, KeyEventArgs e)
{
TreeViewItemInfo info = this.DataContext as TreeViewItemInfo;
if (info == null)
{
return;
}
TextBox txt = sender as TextBox;
if (txt == null)
{
return;
}
switch (e.Key)
{
case Key.Return:
info.Title = txt.Text;
tbTitle.Text = txt.Text;
info.IsEdit = false;
txtTitle.Visibility = System.Windows.Visibility.Hidden;
tbTitle.Visibility = System.Windows.Visibility.Visible;
break;
case Key.Escape:
info.IsEdit = false;
txtTitle.Visibility = System.Windows.Visibility.Hidden;
tbTitle.Visibility = System.Windows.Visibility.Visible;
break;
}
}
public int GetItemIndex(TreeViewItemInfo info)
{
int index = 0;
bool state = GetItemIndex(Source, info, ref index);
return(index);
}
//protected override void OnPreviewMouseLeftButtonUp(System.Windows.Input.MouseButtonEventArgs e)
//{
// TreeViewItem tvItem = Common.FindVisualParent<TreeViewItem>((DependencyObject)InputHitTest(e.GetPosition(null))) as TreeViewItem;
// if (adorner != null)
// mAdornerLayer.Remove(adorner);
// if (SelItem == null) return;
// if (!(SelItem.Header is TreeViewItemInfo)) return;
// if (SelItem != null && tvItem != null)
// {
// if (SelItem == tvItem)
// {
// SelItem = null;
// return;
// }
// }
// if (SelItem != null && tvItem != null && ((TreeViewItemInfo)SelItem.Header).Id != ((TreeViewItemInfo)tvItem.Header).Id)
// {
// MoveTreeViewItem((TreeViewItemInfo)SelItem.Header, (TreeViewItemInfo)tvItem.Header);
// }
// else if (SelItem != null && tvItem == null)
// {
// MoveTreeViewItem((TreeViewItemInfo)SelItem.Header, null);
// }
// base.OnPreviewMouseLeftButtonUp(e);
//}
void MoveTreeViewItem(TreeViewItemInfo SourceInfo, TreeViewItemInfo TargetInfo)
{
TreeViewItemInfo sourceParent = GetParentInfo(SourceInfo, Source);
if (sourceParent != null)
{
sourceParent.Children.Remove(SourceInfo);
if (TargetInfo != null)
{
TargetInfo.Children.Add(SourceInfo);
SourceInfo.ParentId = TargetInfo.Id;
}
else
{
Source.Add(SourceInfo);
SourceInfo.ParentId = new Guid();
}
}
else
{
Source.Remove(SourceInfo);
if (TargetInfo != null)
{
TargetInfo.Children.Add(SourceInfo);
SourceInfo.ParentId = TargetInfo.Id;
}
else
{
Source.Add(SourceInfo);
SourceInfo.ParentId = new Guid();
}
}
}
void txtTitle_LostFocus(object sender, RoutedEventArgs e)
{
TreeViewItemInfo info = this.DataContext as TreeViewItemInfo;
if (info == null)
{
return;
}
info.IsEdit = false;
txtTitle.Visibility = System.Windows.Visibility.Hidden;
tbTitle.Visibility = System.Windows.Visibility.Visible;
}
void TreeViewControl_Click(object sender, RoutedEventArgs e)
{
MenuItem item = sender as MenuItem;
if (item == null)
{
return;
}
if (SelItem == null)
{
return;
}
TreeViewItemInfo info = (TreeViewItemInfo)SelItem.Header;
TreeViewItemInfo addinfo;
TreeViewItemInfo parentInfo;
switch (item.Tag.ToString())
{
case "Add":
addinfo = new TreeViewItemInfo();
addinfo.CollectionChanged += new System.Collections.Specialized.NotifyCollectionChangedEventHandler(source_CollectionChanged);
addinfo.ParentId = info.ParentId;
parentInfo = GetParentInfo(info, source);
if (parentInfo == null)
{
source.Add(addinfo);
}
else
{
parentInfo.Children.Add(addinfo);
}
addinfo.IsEdit = true;
break;
case "AddSub":
addinfo = new TreeViewItemInfo();
addinfo.CollectionChanged += new System.Collections.Specialized.NotifyCollectionChangedEventHandler(source_CollectionChanged);
addinfo.ParentId = info.Id;
info.Children.Add(addinfo);
addinfo.IsEdit = true;
break;
case "Edit":
//info.IsEdit = true;
//break;
case "Del":
break;
}
}
void info_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
TreeViewItemInfo info = sender as TreeViewItemInfo;
if (info == null)
{
return;
}
switch (e.PropertyName)
{
case "IsEdit":
SetEditMode(info.IsEdit);
break;
}
}
TreeViewItemInfo GetParentInfo(TreeViewItemInfo info, ObservableCollection <TreeViewItemInfo> list)
{
TreeViewItemInfo model = null;
foreach (var v in list)
{
if (v.Id == info.ParentId)
{
return(v);
}
else
{
model = GetParentInfo(info, v.Children);
}
}
return(model);
}
void EditableTabHeaderControl_DataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
{
TreeViewItemInfo info = e.NewValue as TreeViewItemInfo;
TreeViewItemInfo oldInfo = e.NewValue as TreeViewItemInfo;
//if (oldInfo != null)
// oldInfo.PropertyChanged -= new System.ComponentModel.PropertyChangedEventHandler(info_PropertyChanged);
//if (info != null)
// info.PropertyChanged += new System.ComponentModel.PropertyChangedEventHandler(info_PropertyChanged);
if (info == null)
{
return;
}
Binding binding = new Binding();
binding.Source = info;
binding.Mode = BindingMode.TwoWay;
binding.Path = new PropertyPath("IsEdit");
this.SetBinding(IsInEditModeProperty, binding);
}
private bool GetItemIndex(ObservableCollection <TreeViewItemInfo> list, TreeViewItemInfo info, ref int index)
{
bool state = false;
foreach (TreeViewItemInfo _info in list)
{
index++;
if (_info.Id == info.Id)
{
state = true; break;
}
state = GetItemIndex(_info.Children, info, ref index);
if (state)
{
break;
}
}
return(state);
}
void TreeViewEditItem_DataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
{
TreeViewItemInfo info = e.NewValue as TreeViewItemInfo;
if (info == null)
{
return;
}
txtTitle.Text = info.Title;
tbTitle.Text = info.Title;
if (info.IsEdit)
{
txtTitle.Visibility = System.Windows.Visibility.Visible;
tbTitle.Visibility = System.Windows.Visibility.Hidden;
}
else
{
txtTitle.Visibility = System.Windows.Visibility.Hidden;
tbTitle.Visibility = System.Windows.Visibility.Visible;
}
}
