<EditItemTemplate>
            <tr>
                <td style="width: 100px;text-align:center">
                    <asp:LinkButton CommandName="Update" ID="UpdateButton" Text="更新" runat="server"   ValidationGroup="Update"/>&nbsp;&nbsp;&nbsp;&nbsp;
                    <asp:LinkButton CommandName="Cancel" ID="CancelButton" Text="取消" runat="server" ValidationGroup="Update" />&nbsp;&nbsp;&nbsp;&nbsp;
                </td>
                <td style="width: 200px; text-align:center">
                <asp:Label Text='<%#DataBinder.Eval(Container.DataItem,"ID")%>' ID="Lbid" runat="server" />
                   <asp:TextBox ID="DcgnameTextBoxup" runat="server" Text='<%# Bind("Bigtype_zh") %>' />
                    <asp:RequiredFieldValidator ID="rfvup1" runat="server" ErrorMessage="不能为空" ValidationGroup="Update"
                        ControlToValidate="DcgnameTextBoxup" SetFocusOnError="true"></asp:RequiredFieldValidator>
                </td>
                <td style="width: 200px; text-align:center">
                    <asp:TextBox ID="en_DcgnameTextBoxup" runat="server" 
                        Text='<%# Bind("Bigtype_en") %>' />
                        <asp:RequiredFieldValidator ID="rfvup2" runat="server" ErrorMessage="不能为空" ValidationGroup="Update"
                        ControlToValidate="en_DcgnameTextBoxup" SetFocusOnError="true"></asp:RequiredFieldValidator>
                </td>
            </tr>
        </EditItemTemplate>

protected void LvProType_ItemUpdating(object sender, ListViewUpdateEventArgs e)
    {
        ListViewItem item = LvProType.Items[e.ItemIndex];
        Label lb = (Label)item.FindControl("Lbid");
        TextBox tbcn = (TextBox)item.FindControl("DcgnameTextBoxup");
        TextBox tben = (TextBox)item.FindControl("en_DcgnameTextBoxup");
        string upsql = "UPDATE [Bigtype] SET [Bigtype_zh]=" + tbcn.Text.Trim() + ", [Bigtype_en]=" + tben.Text.Trim() + "   WHERE [ID] = " + lb.Text.Trim() + "";
        OleDbConnection conn = new OleDbConnection(System.Configuration.ConfigurationManager.ConnectionStrings["TopDB"].ToString());
        conn.Open();
        OleDbCommand cmd = new OleDbCommand(upsql, conn);
        cmd.ExecuteNonQuery();
        conn.Close();
        LvProType.EditIndex = -1;
        GetBigtype();
        lbmsg.Text = "修改成功";
        lbmsg.Visible = true;
    }

 一点更新就提示这个。。。。无法获取两个文本的值~！

至少一个参数没有被指定值。