主题：外部引用错误

Dim cmb As WinForm.ComboBox = e.Form.Controls("Cob_bm")

'cmb.ComboList = DataTables("员工信息").GetComboListString("Bm") 

Dim cmd As New SQLCommand
Dim dt As DataTable

cmd.ConnectioName=“项目管理系统"  '数据库名称

cmd.CommandText = "SELECT Bm Fro m {员工信息}"
dt = cmd.ExecuteReader
cmb.Combolist = dt.GetComboListString("bm")