/// <summary>
/// Construction
/// </summary>
public TreeView()
{
// initialization
Width = 280;
Height = 240;
Left = 2;
Top = 2;
m_NodesValueMember = new Hashtable();
// optimize scrolling - no flicker
SetStyle(ControlStyles.DoubleBuffer, true);
SetStyle(ControlStyles.SupportsTransparentBackColor, true);
SetStyle(ControlStyles.ResizeRedraw, true);
m_aNodes = new NodeCollection(this);
m_oStyle = new TreeViewStyle(this);
m_oScrollBar.Scroll += new ScrollEventHandler(OnScrollItems);
m_oScrollBar.MouseEnter += new EventHandler(OnScrollMouseEnter);
m_oScrollBar.MouseLeave += new EventHandler(OnScrollMouseLeave);
m_oHScrollBar.Scroll += new ScrollEventHandler(OnScrollItemsHorizontal);
m_oHScrollBar.MouseEnter += new EventHandler(OnScrollMouseEnter);
m_oHScrollBar.MouseLeave += new EventHandler(OnScrollMouseLeave);
this.BackColor = Color.White;
m_OnInplaceEditLostFocus = new EventHandler(OnInplaceEditLostFocus);
m_OnInplaceEditKeyPress = new KeyPressEventHandler(OnInplaceEditKeyPress);
m_textBox.Visible = false;
MethodInfo[] methods = typeof (ContextMenu).GetMethods(BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.NonPublic);
foreach (MethodInfo method in methods)
{
if (method.Name == "OnPopup")
{
m_OnPopupMenu = method;
break;
}
}
}
/// <summary>
/// The copy construction
/// </summary>
public NodeEnumerator(NodeCollection oCollection)
{
this.m_oCollection = ((IEnumerable)(oCollection));
this.m_oEnumerator = m_oCollection.GetEnumerator();
}
/// <summary>
/// Gets the node by its name
/// </summary>
/// <param name="oCollection">Collection to check</param>
/// <param name="sNode">Node text to check</param>
/// <returns>Node object if found, null otherwise</returns>
private Node GetCollectionNode(NodeCollection oCollection, string sNode)
{
foreach (Node oNode in oCollection)
if (oNode.Text == sNode)
return oNode;
return null;
}
public NodeCollection(NodeCollection oCollection) : this()
{
AddRange(oCollection);
}
/// <summary>
/// The copy construction
/// </summary>
public NodeEnumerator(NodeCollection oCollection)
{
this.m_oCollection = ((IEnumerable)(oCollection));
this.m_oEnumerator = m_oCollection.GetEnumerator();
}
public void AddRange(NodeCollection value)
{
foreach (Node oItem in value)
{
Add(oItem);
}
}
public NodeCollection(NodeCollection oCollection) : this()
{
AddRange(oCollection);
}
private void SaveNodes(NodeCollection nc)
{
for (int i=0; i<nc.Count; i++)
{
try
{
xtw.WriteStartElement("Node");
xtw.WriteAttributeString("CheckBoxVisible",nc[i].CheckBoxVisible.ToString());
xtw.WriteAttributeString("FlagVisible",nc[i].FlagVisible.ToString());
xtw.WriteAttributeString("ImageIndex",nc[i].ImageIndex.ToString());
xtw.WriteAttributeString("Checked",nc[i].Checked.ToString());
xtw.WriteAttributeString("NodeStyleSource",nc[i].NodeStyleSource.ToString());
xtw.WriteAttributeString("Underline",nc[i].Underline.ToString());
xtw.WriteAttributeString("Visible",nc[i].Visible.ToString());
if (nc[i].Key != null)
xtw.WriteAttributeString("Key",nc[i].Key.ToString());
if (nc[i].Tag is string)
{
xtw.WriteAttributeString("Tag",nc[i].Tag.ToString());
}
SaveMultiLineText(nc[i].Text, "Text");
SaveObject(nc[i].Flag, "Flag");
SaveMultiLineText(nc[i].Tooltip, "Tooltip");
if (nc[i].NodeStyleSource == PureComponents.TreeView.NodeStyleSource.Local)
{
SaveObject(nc[i].NodeStyle, "NodeStyle");
}
if (nc[i].Nodes.Count > 0)
{
SaveNodes(nc[i].Nodes);
}
xtw.WriteFullEndElement();
}
catch(Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
}
