/// <summary>
/// 添加子节点（绑定下级）
/// </summary>
/// <param name="region"></param>
public void AddChild(E_Region region, int regionid)
{
region.List = new List <E_Region>();
E_Region r = null;
foreach (DataRow row in dt.Select(" parentid=" + region.RegionID))
{
r = new E_Region();
r.RegionID = Convert.ToInt32(row["RegionID"]);
r.RegionName = row["RegionName"].ToString();
if (r.RegionID == regionid) //如果当前节点编号==regionid ,则选中该节点
{
r.Selected = " selected=\"selected\"";
}
region.List.Add(r);
}
}
/// <summary>
/// 数据绑定
/// </summary>
private void databind()
{
//获取数据源
dt = new MLMGC.BLL.T_Region().GetList();
if (dt == null || dt.Rows.Count == 0)
{
return;
}
//初始化对象
list = new List <E_Region>();
E_Region region = null;
//-----------------------分析绑定数据-------------------------
//判断是否传值
int regionid, pid = 0;
if (!int.TryParse(hfValue.Value, out regionid))
{
Jscript.ShowMsg("参数错误", this);
return;
}
//查找父节点编号
DataRow[] rows = dt.Select(" regionid=" + regionid);
if (rows.Length == 1)
{
pid = Convert.ToInt32(rows[0]["parentid"]);
}
//获取所有父节点，绑定显示
foreach (DataRow row in dt.Select(" parentid=0"))
{
region = new E_Region();
region.RegionID = Convert.ToInt32(row["RegionID"]);
region.RegionName = row["RegionName"].ToString();
AddChild(region, regionid);
if (region.RegionID == pid) //如果当前节点编号==pid ,则选中该节点
{
region.Selected = " selected=\"selected\"";
//绑定子级
rpSecond.DataSource = region.List;
rpSecond.DataBind();
}
list.Add(region);
}
rpList.DataSource = list;
rpList.DataBind();
//-------------------------拼装json字符串----------------------------
strArray = new StringBuilder("[");
foreach (DataRow row in dt.Rows)
{
strArray.Append("{id:\"" + row["RegionID"] + "\",name:\"" + row["RegionName"] + "\",pid:\"" + row["ParentID"] + "\"},");
}
strArray.Remove(strArray.Length - 1, 1);
strArray.Append("]");
hfData.Value = strArray.ToString();
//-------------------------------------------------------------------
}
