private void TreeList_1_FocusedNodeChanged(object sender, DevExpress.XtraTreeList.FocusedNodeChangedEventArgs e)
{
if (focus == _FOCUS.DELETE || focus == _FOCUS.ADD)
{
focus = _FOCUS.NONE;
return;
}
else if (focus == _FOCUS.EDIT)
{
this.DeleteEmptyNode();
focus = _FOCUS.NONE;
return;
}
ShowReadOnlyTreeList(true);
if (e.Node != null && e.Node.ParentNode == null)
{
addSameLevel.Enabled = false;
btnUpdate.Enabled = false;
btnDel.Enabled = false;
}
}
private void btnDel_Click(object sender, EventArgs e)
{
if (_BeforeDelEvent != null) _BeforeDelEvent(this);
if (IsFilterRow()) return;
if (TreeList_1.FocusedNode != null)
{
if (TreeList_1.FocusedNode.ParentNode == null)
{
HelpMsgBox.ShowNotificationMessage("Không thể xóa dữ liệu này.");
return;
}
if (DeleteEmptyNode()) return;
if (PLMessageBox.ShowConfirmMessage("Bạn có chắc chắn muốn xóa dữ liệu này không ?") == DialogResult.Yes)
{
long id = HelpNumber.ParseInt64(TreeList_1.FocusedNode[this.IDField]);
List<long> listID = this.nodeHasParentID(id);
listID.Add(id);
if (!this.removeListNode(listID))
{
HelpMsgBox.ShowNotificationMessage("Xóa không thành công vì dữ liệu đang được sử dụng.");
if (_AfterDelFailEvent != null) _AfterDelFailEvent(this);
}
else
{
focus = _FOCUS.DELETE;
this.TreeList_1.BeginUpdate();
TreeList_1.DeleteNode(TreeList_1.FocusedNode);
((DataTable)this.TreeList_1.DataSource).AcceptChanges();
this.TreeList_1.EndUpdate();
if (_AfterDelSuccEvent != null) _AfterDelSuccEvent(this);
}
}
}
}
private bool DeleteEmptyNode()
{
try
{
TreeListNode NewNode = TreeList_1.FindNodeByFieldValue(IDField, "-2");
if (NewNode != null)
{
focus = _FOCUS.DELETE;
TreeList_1.DeleteNode(NewNode);
TreeList_1.InvalidateNode(NewNode);
return true;
}
if (TempNewNode != null && !TreeList_1.FocusedNode.Equals(TempNewNode))
{
focus = _FOCUS.DELETE;
TreeList_1.DeleteNode(TempNewNode);
TreeList_1.InvalidateNode(TempNewNode);
return true;
}
if (TempNewNode != null && TempNewNode.GetValue(IDField).ToString() == "-2")
{
focus = _FOCUS.DELETE;
TreeList_1.DeleteNode(TempNewNode);
TreeList_1.InvalidateNode(TempNewNode);
return true;
}
return false;
}
catch (Exception ex){
PLException.AddException(ex);
return true;
}
}
private void addClickEvent(EventArgs e, bool AddChild)
{
if (IsFilterRow()) return;
TreeListNode FocusedNode = TreeList_1.FocusedNode;
long idParent = -1;
try
{
if (FocusedNode != null)
{
//Xóa nút mới chưa thêm xong
DeleteEmptyNode();
DataRow row = ((DataTable)TreeList_1.DataSource).NewRow();
row[IDField] = "-2";
try { row["VISIBLE_BIT"] = "Y"; }
catch { }
if (AddChild)//Thêm con
{
idParent = HelpNumber.ParseInt64(FocusedNode[this.IDField]);
row[ParentIDField] = idParent;
row[GlobalConst.ID_ROOT] = FocusedNode[GlobalConst.ID_ROOT];
focus = _FOCUS.ADD;
TreeList_1.FocusedNode = TreeList_1.AppendNode(row.ItemArray, FocusedNode);
}
else//Thêm cùng cấp
{
if (TreeList_1.FocusedNode.ParentNode != null)
{
idParent = HelpNumber.ParseInt64(FocusedNode.ParentNode[this.IDField]);
row[ParentIDField] = idParent;
row[GlobalConst.ID_ROOT] = FocusedNode.ParentNode[GlobalConst.ID_ROOT];
focus = _FOCUS.ADD;
TreeList_1.FocusedNode = TreeList_1.AppendNode(row.ItemArray, FocusedNode.ParentNode);
}
else
{
//Thông báo không cho phép thêm
return;
}
}
TempNewNode = TreeList_1.FocusedNode;
this.ShowReadOnlyTreeList(false);
TreeList_1.Select();
}
}
catch (Exception ex)
{
PLException.AddException(ex);
}
}
