Tag: visual studio 2013

由于某种原因，combobox是相互关联的

我有以下代码来填充3个combobox： private void PopulateDDLs() { SqlConnection connection; SqlCommand command; SqlDataReader reader; DataTable dt; using (connection = new SqlConnection(“connection string here”)) { using (command = new SqlCommand(“sql query here”, connection)) { connection.Open(); using (reader = command.ExecuteReader()) { dt = new DataTable(); dt.Load(reader); ddl1.ValueMember = “col1”; ddl1.DisplayMember = “col2”; ddl1.DataSource = dt; ddl2.ValueMember = “col1”; ddl2.DisplayMember = […]