WPF TreeView递归遍历相关方法

         /// <summary>
         /// 递归改变组织树选中状态。
         /// </summary>
         /// <param name="org"></param>
         private void RecursionOrgDataTreeStatus(OrgData org)
         {
             foreach (var item in org.Nodes)
             {
                 item.IsChecked = org.IsChecked;
                 if (item.Nodes.Count > )
                 {
                     RecursionOrgDataTreeStatus(item);
                 }
             }
         }

          /// 获取选中的组织数据。
         /// </summary>
         private void GetCheckedOrgData()
         {
             foreach (OrgData orgData in orgDataCollection)
             {
                 if(orgData.IsChecked)receiverData.Add(orgData);
                 if (orgData.HasChild)
                 {
                     GetCheckedOrgChildData(orgData);
                 }
             }
         }
         /// <summary>
         /// 获取选中组织中子节点选中的数据。
         /// </summary>
         private void GetCheckedOrgChildData(OrgData org)
         {
             foreach (OrgData orgData in org.Nodes)
             {
                 if(orgData.IsChecked)receiverData.Add(orgData);
                 if (orgData.HasChild) GetCheckedOrgChildData(orgData);
             }
         }

         /// <summary>
         ///递归取父级节点下选中的节点。
         /// </summary>
         /// <param name="org"></param>
         private void GetCheckedOrgDataByOrgParent(OrgData org)
         {
             if (org == null) return;
             if (org.Parent == null && org.IsChecked) receiverData.Add(org);
             if (org.Parent != null)
             {
                 foreach (var node in org.Parent.Nodes)
                 {
                     if (node.IsChecked) receiverData.Add(node);
                 }
             }
             GetCheckedOrgDataByOrgParent(org.Parent);
         }

          /// <summary>
         /// 递归删除节点的父级节点。
         /// </summary>
         /// <param name="org"></param>
         private void DeletedOrgData(OrgData org)
         {
             if (org == null) return;
             if (org.Parent == null) return;
             receiverData.Remove(org.Parent);
             DeletedOrgData(org.Parent);
         }