private void DragToBox(DragEventArgs e, TreeNodeBox b)
{
if (true == TryDragDisk(e, b))
{
return;
}
}
private bool TryDragDisk(DragEventArgs e, TreeNodeBox b)
{
object fromObj = e.Data.GetData(typeof (TreeNodeDisk));
if (null == fromObj)
{
return false;
}
if (fromObj == b)
{
return false;
}
TreeNodeDisk dragedDisk = (TreeNodeDisk) fromObj;
dragedDisk.InternalDisk.Box = b.InternalBox;
return true;
}
/// <summary>
/// Causes tree node to get its child nodes
/// </summary>
public override void LoadTreeNodeChilds()
{
if (true == this.nodesLoaded)
{
return;
}
if (true == this.cat.IsRoot)
{
this.trv.Nodes.Clear();
}
else
{
this.Nodes.Clear();
}
var lst = this.cat.ChildCategories;
if (null != lst)
{
foreach (DataBase.Category c in lst)
{
if (false == c.IsDeleted)
{
TreeNodeCategory cc = new TreeNodeCategory(this.db, c, this.trv);
if (true == this.cat.IsRoot)
{
this.trv.Nodes.Add(cc);
}
else
{
this.Nodes.Add(cc);
}
}
}
}
var childBoxes = this.cat.ChildCDBoxes;
if (null != lst)
{
foreach (DataBase.Box r in childBoxes)
{
if (false == r.IsDeleted)
{
TreeNodeBox b = new TreeNodeBox(this.db, r, this.trv);
if (true == this.cat.IsRoot)
{
this.trv.Nodes.Add(b);
}
else
{
this.Nodes.Add(b);
}
}
}
}
this.nodesLoaded = true;
}