Simple DB ? , Getting A Value And Setting As A Variable.

Hi, folks. As part of a larger bunch of code, I am trying to validate some user form input against a database...I've been picking apart code samples and have the following (currently not yet working) code to show for it. I find tons of complex examples out there RE the data controls, and I have those working. But I can't find any examples of just pulling a single record from a DB, sticking it in a variable, and then checking against that variable to get a boolean response. Anyway, here is the code. I am trying to check that a password field filled by the user matches the value located in the DB. I am not married to this code; if someone suggests a better way to do it rather than using a custom validator control, that's fine too:BEGIN CODE SNIP
void Page_Load(object sender, EventArgs e)
{
Page.Validate();
SqlDataSource1.SelectCommand = "SELECT Password FROM aspnet_Membership WHERE aspnet_Membership.Email='" + emailID.Text + "'";
}

private void CustomValidator1_ServerValidate(object source, System.Web.UI.WebControls.ServerValidateEventArgs args)
{
//between this and the next comment is where I have to get the DB Password field value for the current record
SqlCommand command = new SqlCommand("SELECT Password FROM aspnet_Membership WHERE aspnet_Membership.Email='" + emailID.Text + "'");
command.CommandType = CommandType.StoredProcedure;
sqlConnection.Open();
reader=command.ExecuteReader();
string currentPasswordDb = reader.IsDBNull(reader.GetString("Password"))? null: reader["Password"].ToString();
args.IsValid = false; // Assume False
{
// Compare db entry against user's entry
if (currentPasswordDb == currentPassword.Text)
{
args.IsValid = true;
}
}
}  END CODE SNIP
 The code above give me the following at runtime:
Line 14: SqlCommand command = new SqlCommand("SELECT Password FROM aspnet_Membership WHERE aspnet_Membership.Email='" + emailID.Text + "'");
Line 15: command.CommandType = CommandType.StoredProcedure;
Line 16: sqlConnection.Open();
Line 17: reader=command.ExecuteReader();Line 18: string currentPasswordDb = reader.IsDBNull(reader.GetString("Password"))? null: reader["Password"].ToString();Although I'm sure it won't be the last. I'm a former ASP classic developer, moving to c# and .Net. Any ideas?