主题：[求助]下拉输入窗口提示错误

Dim txt As String = e.Form.DropDownBox.Text
Dim tbl As Table = Tables("电气型号规格_电气型号规格")
If txt = "" Then
    tbl.Filter = ""
Else
    txt = "'%" & txt.Replace("*", "[*]") & "%'"

    MessageBox.Show(1)

    tbl.Filter = "型号规格 Like " & txt  '提示错误的语句

    MessageBox.Show(2)

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