绑定下拉列表

   （1）            绑定值和Text

             DropDownList ddlEmployee = lstExpenseBusiness.Items[i].FindControl("ddlEmployee") as DropDownList;
               
                ddlEmployee.DataSource = employeeList;
                ddlEmployee.DataTextField = "DisplayName";
                ddlEmployee.DataValueField = "EmployeeGuid";
                ddlEmployee.DataBind();

（2）

           DropDownList ddlVP = lstEmployee.Items[i].FindControl("ddlVP") as DropDownList;
                ddlVP.Items.Add(new ListItem("",""));
                foreach (var item in all)
                {
                    ListItem list = new ListItem();
                    list.Text = item.DisplayName;
                    list.Value = item.EmployeeGuid.ToString();
                    ddlVP.Items.Add(list);
                }

建议用（1）