private void LoadContentInfo(object categoryId)
{
listBox1.Items.Clear();
string constr = ConfigurationManager.ConnectionStrings["sql"].ConnectionString;
using (SqlConnection con = new SqlConnection(constr))
{
string sql = "select did,dname from ContentInfo where dtid=@pid";
using (SqlCommand cmd = new SqlCommand(sql, con))
{
cmd.Parameters.AddWithValue("@pid", categoryId);
con.Open();
using (SqlDataReader reader = cmd.ExecuteReader())
{
if (reader.HasRows)
{
while (reader.Read())
{
int did = reader.GetInt32(0);
string dname = reader.GetString(1);
WenZhang wz = new WenZhang();
wz.WenZhangId = did;
wz.WenZhangBiaoTi = dname;
listBox1.Items.Add(wz);
}
}
}
}
}
}
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
//如果listBox当前选定项不为空
if (listBox1.SelectedItem != null)
{
//int obj =Convert.ToInt32( listBox1.SelectedItem);
//string msg = GetWenZhangNeiRongById(obj);
//textBox1.Text = msg;
WenZhang wz = (WenZhang)listBox1.SelectedItem;
int did = wz.WenZhangId;
string msg = GetWenZhangNeiRongById(did);
textBox1.Text = msg;
}
}