更新时间:2023-01-29 20:34:52
i found the problem in this html line
<asp:Button ID="btnSave" runat="server" CssClass="bigButton2" style="color: #FFFFFF; font-weight: 700; background-color: #333333" Text="Send" Width="180px" Height="38px" onclick="btnSave_Click" />
in this code (onclick="btnSave_Click" />)