public void SelectParentItem(ITreeViewItem NodeItem)
{
TreeViewItem TVI = SearchTVIRecursive((TreeViewItem)Tree.Items[0], NodeItem);
if (TVI != null)
{
if (TVI.Equals((TreeViewItem)Tree.Items[0]) == false)
{
TreeViewItem parent = (TreeViewItem)TVI.Parent;
parent.Focus();
}
else
{
TVI.Focus();
}
}
}
private void mergeNode_Selected(object sender, RoutedEventArgs e)
{
try
{
if (_lastNode != null && _lastNode.Equals(e.Source as TreeViewItem))
{
return;
}
var node = e.Source as TreeViewItem;
if (node == null)
{
_lastNode = null;
ClearTablePage();
return;
}
var merge = node.Tag as MergeDescriptor.Merge;
if (merge == null)
{
_lastNode = null;
ClearTablePage();
return;
}
God.Merge = merge;
God.CurrentMergeData = merge.Data;
God.DataTableChanged.Invoke();
_lastNode = node;
}
catch (Exception ex)
{
MessageBox.Show("Error selecting node in tree: " + ex.Message);
}
}
/// <summary>
/// 拖拽item处理，设置各种鼠标操作状态和TreeViewItem显示状态
/// </summary>
private void MouseDragDeal(TreeViewItem tvi)
{
if (tvi != null && tvi.IsMouseOver)
{
var objRow = tvi.DataContext;
if (objRow == null)
{
return;
}
if (IsCanMove(_selectedItem, objRow) == false)
{
Mouse.SetCursor(Cursors.No);
}
//为目标TreeViewItem添加装饰控件
AddAdorner(tvi);
if (_tempTreeViewItem != null && tvi.Equals(_tempTreeViewItem) == false)
{
HideAdorner(_tempTreeViewItem);
}
_tempTreeViewItem = tvi;
}
}
// 교환
private void TreeViewItem_Drop(object sender, DragEventArgs e)
{
try
{
// null이 있다면
if (selectedTreeViewItem is null || changedTreeViewItem is null)
{
throw(new Exception());
}
// 본인과 같으면
if (selectedTreeViewItem.Equals(changedTreeViewItem))
{
throw (new Exception());
}
var parent = changedTreeViewItem.Parent as ItemsControl;
int index = parent.Items.IndexOf(changedTreeViewItem);
// selected 아이템을 분리함
ItemsControl originParent = selectedTreeViewItem.Parent as ItemsControl;
int originIndex = originParent.Items.IndexOf(selectedTreeViewItem);
originParent.Items.Remove(selectedTreeViewItem);
try
{
switch (collocate)
{
case Collocate.Upper:
parent.Items.Insert(index, selectedTreeViewItem);
break;
case Collocate.Child:
changedTreeViewItem.Items.Add(selectedTreeViewItem);
break;
case Collocate.Lower:
index++;
parent.Items.Insert(index, selectedTreeViewItem);
break;
}
}
catch (Exception)
{
// first가 child보다 상위 Depth일때 되돌리기
originParent.Items.Insert(originIndex, selectedTreeViewItem);
}
}
catch
{
}
finally
{
try
{
changedTreeViewItem.FontWeight = FontWeights.Normal;
}
catch
{
}
(XAML_TreeView.Items[0] as TreeViewItem).IsSelected = false;
selectedTreeViewItem = null;
changedTreeViewItem = null;
}
}
