asp.net ·þÎñÆ÷¶ËÔõô´úÂë´´½¨¿Ø¼þ Ìí¼Óʼþ

DropDownList ×öÎÞÏÞ¼¶Áª

²»ÖªµÀÔõô¸øÊÖ¶¯Ìí¼ÓddlÌí¼ÓSelectedIndexChanged·þÎñÆ÷ʼþ£¡

DataTable dt;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            string sql = "select * from merType where pid=0";
            dt = DataBase.ExecuteQuery(sql,null);
           
            foreach(DataRow dr in dt.Rows)
            {
                ddlNode.Items.Add(new ListItem(dr["Name"].ToString(), dr["Id"].ToString()));
            }
        }
    }

    public DataTable getDataTable(int pid)
    {
        string sql = "select * from merType where pid="+pid;
        return DataBase.ExecuteQuery(sql, null);
    }


    protected void ddlNode_SelectedIndexChanged(object sender, EventArgs e)
    {
        int pid = Int32.Parse(ddlNode.SelectedValue.ToString());
    &nbs