/// <summary>
/// 递归加载数据到TreeNode
/// </summary>
/// <param name="pid"></param>
/// <param name="treeNodes">TreeNode集合</param>
/// 由于这个方法的参数有TreeNode,所以不适合写在逻辑层
public void LoadAreaDataRec(int pid, TreeNodeCollection treeNodes)
{
TblAreaBll bll = new TblAreaBll();
List<Area> list=bll.GetAreaDataByAreaPID(pid);
foreach (var item in list)
{
TreeNode newNode=treeNodes.Add(item.AreaName);
newNode.Tag = item.AreaId;
LoadAreaDataRec(item.AreaId, newNode.Nodes);
}
}
/// <summary>
/// 删除按钮
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnDelete_Click(object sender, EventArgs e)
{
TblAreaBll bll = new TblAreaBll();
bll.RecDeleteAreaData((int)treeView1.SelectedNode.Tag);
treeView1.SelectedNode.Remove();
}