private static MvcHtmlString BindTreeEx <T1, T2>(ITreeNodeEx <T1, T2> treeModel, int layer) where T1 : ITreeNodeEx <T1, T2> where T2 : IName
{
StringBuilder sb = new StringBuilder();
if (treeModel != null)
{
List <T1> list = treeModel.Children.ToList();
if (layer == 0)
{
sb.Append(string.Format("<ul onclick='{0}'>", "displayOrHide(event);"));
}
else
{
if (HaveChildren(treeModel))
{
sb.Append(string.Format("<ul class='collapse' id='List{0}'>", treeModel.Id));
}
else
{
sb.Append("<ul>");
}
}
foreach (T1 item in list)
{
bool haveChildren = HaveChildren(item);
if (!haveChildren)
{
sb.Append("<li>");
}
else
{
sb.Append("<li style='list-style-image: url(\"../Img/TreeIcon/open.png\");cursor: pointer;'>");
}
sb.Append(item.Name);
sb.Append("</li>");
sb.Append(BindTreeEx(item, layer + 1));
}
List <T2> leafs = treeModel.LeafNodes.ToList();
foreach (T2 leaf in leafs)
{
sb.Append("<li>");
sb.Append(leaf.Name);
sb.Append("</li>");
}
sb.Append("</ul>");
}
MvcHtmlString mstr = new MvcHtmlString(sb.ToString());
return(mstr);
}
public static bool HaveChildren <T1, T2>(ITreeNodeEx <T1, T2> item) where T1 : ITreeNodeEx <T1, T2> where T2 : IName
{
return((item.Children != null && item.Children.Count > 0) || (item.LeafNodes != null && item.LeafNodes.Count > 0));
}
public static MvcHtmlString TreeEx <T1, T2>(this HtmlHelper html, ITreeNodeEx <T1, T2> treeModel) where T1 : ITreeNodeEx <T1, T2> where T2 : IName
{
return(BindTreeEx(treeModel, 0));
}
