ExecuteReader: Connection property has not been initialized

Question

ExecuteReader: Connection property has not been initialized.

my coding is

protected void Button2_Click(object sender,          


        

Answer 1

All of the answers is true.This is another way. And I like this One

SqlCommand cmd = conn.CreateCommand()

you must notice that strings concat have a sql injection problem. Use the Parameters http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlcommand.parameters.aspx