dropdown list display base on a radio button - asp.net

Question

I am an amature programmer. I have just start coding around one month
I am trying to write a code which shows the specific values of a database table in a dropdown list based on the radio button checked changed.
I tried to do it by using a session which saves the id of the table values and sends it to the drop down list, but nothing happens
<asp:RadioButton ID="rdbHome" runat="server" AutoPostBack="True"
GroupName="rdb" oncheckedchanged="rdbHome_CheckedChanged" />
<asp:DropDownList ID="DropDownList1" runat="server"
DataSourceID="SqlDataSource1" DataTextField="p" DataValueField="playerID">
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:BasketballConnectionString %>"
SelectCommand="PlayerName" SelectCommandType="StoredProcedure">
<SelectParameters>
<asp:SessionParameter Name="team1ID" SessionField="team1" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
protected void rdbHome_CheckedChanged(object sender, EventArgs e)
{
string conStr = WebConfigurationManager.ConnectionStrings["BasketballConnectionString"].ConnectionString;
SqlConnection con = new SqlConnection(conStr);
SqlCommand cmd = new SqlCommand("team1ID", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("#mID", int.Parse(Request.QueryString["mID"]));
SqlCommand cmd2 = new SqlCommand("matchTeam2", con);
cmd2.CommandType = CommandType.StoredProcedure;
cmd2.Parameters.AddWithValue("#mID", int.Parse(Request.QueryString["mID"]));
try
{
con.Open();
SqlDataReader reader;
reader = cmd2.ExecuteReader();
//reader2 = cmd2.ExecuteReader();
reader.Read();
Session["team1"] = reader["team1ID"].ToString();
cmd.Parameters.AddWithValue("#team1ID", Session["team1"]);
}
catch(Exception ex)
{
lblMsg.Text = "خطا" + ex.Message;
}
}
ALTER PROCEDURE [dbo].[team1ID](#mID INT)
AS
BEGIN
SELECT teamTbl.teamID AS team1ID from
teamTbl join matchTbl ON matchTbl.team1ID=teamTbl.teamID
WHERE matchID=#mID
END
ALTER PROCEDURE [dbo].[matchTeam2](#mID int)
AS
BEGIN
SELECT t1.teamName as team1Name,t2.teamName as team2name,matchTbl.playeName,matchTbl.playerScore,
matchTbl.team1Score,matchTbl.team2Score,team1ID,team2ID
FROM matchTbl JOIN teamTbl as t1 on matchTbl.team1ID=t1.teamID
JOIN teamTbl as t2 on matchTbl.team2ID=t2.teamID
WHERE matchTbl.matchID=#mID
END
and the code for sqlDataSource
ALTER PROCEDURE [dbo].[PlayerName](#team1ID INT)
AS
BEGIN
SELECT playersTbl.playerName, playersTbl.playerID
FROM teamTbl JOIN playersTbl ON teamTbl.teamID=playersTbl.teamID
WHERE teamTbl.teamID=#team1ID
END

Answer 1

It seems that you are not populating the dropdown at all in this case. Inside 'rdbHome_CheckedChanged' method, you should be populating the 'DropDownList1' dropdown control.
Something like the following:
DropDownList1.Items.Add(new ListItem("5", "5%"));

Answer 2

thanks for your help guys, the code worked fine, there were only some silly mistakes in it, the above code is edited and has no problems