主题：有带*号的字符查询时出错

Dim txt As String = e.Form.DropDownBox.Text
Dim tbl As Table = Tables("货物输入_货物名称表")
If txt = "" Then
    tbl.Filter = ""
Else
    txt = "'%" & txt & "%'"
    tbl.Filter = "货物编号 Like " & txt & " Or 货物名称 Like " & txt & " Or 规格型号 Like " & txt & " Or 产地 Like " & txt

End If
e.Form.DropDownBox.Select() '将输入焦点返回下拉列表框

规格型号  是  14*12    输入 14可以查到   输入14*1提示

.NET Framework 版本:4.0.30319.42000
Foxtable 版本:2020.5.29.8
错误所在事件:
详细错误信息:
Like 运算符中出错: 字符串模式"%14*1%"无效.