TreeListAdapter.cs :  » GUI » TreeViewAdv » Aga » Controls » Tree » C# / CSharp Open Source

using System;
using System.Collections.Generic;
using System.Text;

namespace Aga.Controls.Tree{
  /// <summary>
  /// Converts IEnumerable interface to ITreeModel. 
  /// Allows to display a plain list in the TreeView
  /// </summary>
  public class TreeListAdapter : ITreeModel
  {
    private System.Collections.IEnumerable _list;

    public TreeListAdapter(System.Collections.IEnumerable list)
    {
      _list = list;
    }

    #region ITreeModel Members

    public System.Collections.IEnumerable GetChildren(TreePath treePath)
    {
      if (treePath.IsEmpty())
        return _list;
      else
        return null;
    }

    public bool IsLeaf(TreePath treePath)
    {
      return true;
    }

    public event EventHandler<TreeModelEventArgs> NodesChanged;
    public void OnNodesChanged(TreeModelEventArgs args)
    {
      if (NodesChanged != null)
        NodesChanged(this, args);
    }

    public event EventHandler<TreePathEventArgs> StructureChanged;
    public void OnStructureChanged(TreePathEventArgs args)
    {
      if (StructureChanged != null)
        StructureChanged(this, args);
    }

    public event EventHandler<TreeModelEventArgs> NodesInserted;
    public void OnNodeInserted(TreeModelEventArgs args)
    {
      if (NodesInserted != null)
        NodesInserted(this, args);
    }

    public event EventHandler<TreeModelEventArgs> NodesRemoved;
    public void OnNodeRemoved(TreeModelEventArgs args)
    {
      if (NodesRemoved != null)
        NodesRemoved(this, args);
    }

    #endregion
  }
}