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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());
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