radio Button List Bind from database

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onclick="Button1Search_Click" />

Width="100%" onitemdatabound="DataList1_ItemDataBound" onselectedindexchanged="DataList1_SelectedIndexChanged1"> <%-- --%> <%-- --%> Question : <%-- <head> --%> GroupName ="aa" runat="server" onselectedindexchanged="RadioButtonList1_SelectedIndexChanged" ontextchanged="RadioButtonList1_TextChanged" > onselectedindexchanged="RadioButtonList2_SelectedIndexChanged" ontextchanged="RadioButtonList2_TextChanged" > onselectedindexchanged="RadioButtonList3_SelectedIndexChanged" ontextchanged="RadioButtonList3_TextChanged" > onselectedindexchanged="RadioButtonList4_SelectedIndexChanged" ontextchanged="RadioButtonList4_TextChanged" > Name Class CommandName="Delete">Delete

protected void Button_save_Click(object sender, EventArgs e)

{

con.Open();

OleDbCommand cmdEmail = new OleDbCommand("select CourseCode from AddCourse where CourseCode='" + Text_CourseCode.Text + "'", con);

OleDbDataReader drEmail = cmdEmail.ExecuteReader();

if (drEmail.HasRows)

{

while (drEmail.Read())

{

LabelError.Text = ("ERROR: Record already exists.Enter New Course Code");

// Response.Write("");

return;

}

}

con.Close();

con.Open();

OleDbCommand cmd = new OleDbCommand("insert into AddCourse([CourseCode],[CourseName],[MonthlyFees],[Package],[Duration],[Added_Date]) values('" + Text_CourseCode.Text + "','" + Text_CourseName.Text + "','" + Text_Fees.Text + "'," + Text_Package.Text + ",'" + Text_Duration.Text + "','" + indianTime + "')", con);

cmd.ExecuteNonQuery();

con.Close();

Text_CourseCode.Text = "";

Text_CourseName.Text = "";

Text_Duration.Text = "";

Text_Fees.Text = "";

Text_Package.Text = "";

}