/// <summary>
/// 在节点及其子节点下找到指定ID的节点
/// </summary>
/// <param name="pID"></param>
/// <returns></returns>
public ExtJSTreeNode Find(string pID)
{
if (this.ID == pID)
{
return(this);
}
//
ExtJSTreeNode node = null;
if (this.Children != null && this.Children.Count > 0)
{
foreach (var child in this.Children)
{
if (child != null)
{
node = child.Find(pID);
}
if (node != null)
{
break;
}
}
}
//
return(node);
}
/// <summary>
/// 转换成ExtJS的TreeStore的JSON
/// </summary>
/// <param name="pIsMultiSelect">是否为多选,如果是,则所有节点都自动带checkbox</param>
/// <param name="pIsSelectLeafOnly">是否为只能选择叶子节点,如果为是,则多选时的非叶节点不带checkbox</param>
/// <param name="pSelectedNodes">选中的值,该项仅当多选模式时才会起作用</param>
/// <returns></returns>
public string ToTreeStoreJSON(bool pIsMultiSelect, bool pIsSelectLeafOnly, TreeNode[] pSelectedNodes)
{
List <ExtJSTreeNode> nodes = new List <ExtJSTreeNode>();
foreach (var item in this.InnerList)
{
var node = new ExtJSTreeNode()
{
ID = item.ID,
Text = item.Text,
ParentID = item.ParentID,
IsLeaf = item.IsLeaf,
IsPleaseSelectItem = item.IsPleaseSelectItem,
create_time = item.create_time,
ImageUrl = item.ImageUrl,
PromotionItemCount = item.PromotionItemCount,
Status = item.Status,
NodeLevel = item.NodeLevel,
DisplayIndex = item.DisplayIndex,
CommissionRate = item.CommissionRate,
ItemGroupType = item.ItemGroupType,
Color = item.Color,
IsPreference = item.IsPreference
};
if (pIsMultiSelect)
{
node.IsChecked = false;//只要值不为null则就会带checkbox,但树项默认是不选中的
if (pSelectedNodes != null && pSelectedNodes.Length > 0)
{
foreach (var n in pSelectedNodes)
{
if (n != null && node.ID == n.ID)
{
node.IsChecked = true;
break;
}
}
}
}
//
nodes.Add(node);
}
//根据节点的父节点，构建对象关系
for (int i = 0; i < nodes.Count; i++)
{
var node = nodes[i];
if (!string.IsNullOrEmpty(node.ParentID)) //如果有父节点
{
//找到父亲节点
ExtJSTreeNode parent = null;
for (int j = 0; j < nodes.Count; j++)
{
parent = nodes[j].Find(node.ParentID);
if (parent != null)
{
break;
}
}
if (parent != null)
{
if (parent.Children == null)
{
parent.Children = new List <ExtJSTreeNode>();
}
parent.Children.Add(node);
parent.IsLeaf = false;
nodes.RemoveAt(i);
i--;
}
}
}
//移除非叶节点的checkbox
if (pIsMultiSelect && pIsSelectLeafOnly)
{
foreach (var node in nodes)
{
var notLeafNodes = node.FindNotLeafNodes();
if (notLeafNodes != null && notLeafNodes.Length > 0)
{
foreach (var notLeafNode in notLeafNodes)
{
notLeafNode.IsChecked = null; //非叶子节点不带checkbox
}
}
}
}
//序列化
return(nodes.ToJSON());
}