Databinding Combobox

/* Create a new Customer                          */
Customer cust = new Customer("Joe", null);
 
/* Add null value                                       */
DataRow row = statesTable.NewRow();
 
/* Enter a null row (ComboBox will show blank)          */
row["Name"] = "";
row["Code"] = DBNull.Value;
 
/* Add the row to DataTable                             */
statesTable.Rows.Add(row);
 
/* Bind the States ComboBox to the states DataTable     */
this.statesCB.DisplayMember = "Name";
this.statesCB.ValueMember = "Code";
this.statesCB.DataSource = statesTable;
 
/* Bind the ComboBox SelectedValue to the customer      */
/* business object                                      */
this.statesCB.DataBindings.Add("SelectedValue", cust, "StateID", true);