Dim txt As String = e.Form.DropDownBox.Text Dim tbl As Table = Tables("窗口1_Table1") If txt = "" Then tbl.Filter = "显示 = true" Else txt = "'%" & txt & "%'" tbl.Filter = "(客户ID Like " & txt & " Or 公司名称 Like " & txt & " Or 地址 Like " & txt & " Or 联系人 Like " & txt & ") And 显示 = true" End If e.Form.DropDownBox.Select()