.ajax（）函数发送

a请求登录页面然后返回带有2个字段的json响应：错误（失败）和msg（用户/传递确定）。当ajax结束时，success函数必须在页面上显示来自msg的值，如果没有错误重定向到主页。

i假设在某种程度上我需要验证用户/传递我在数据库中有什么，我只是不知道该怎么做。

i目前使用会话进行我的身份验证，它运行得很好，但现在我的新任务是更改它。

i尝试下面的问题是我不知道如何使用数据库进行验证，看看用户和密码是否正确。

请帮我一些想法。

谢谢



我尝试过：

.ajax() function who sends
a request to the login page and then return a json response with 2 fields: error(failed) and msg(user/pass ok). When the ajax ends, the success function must display on the page the value from msg and if there is no error redirect to home page.
i suppose that in some way i need to verify the user/pass with what i have in the database, i just don't know how to do it.
i currently use sessions for my authentications and it works just fine but now my new task is to change it.
i tried something below the problem is i don't know how to do the validation with the database to see if the user and password are correct.
please help me with some ideas.
Thank you

What I have tried:

This is my table
 <table style="background-color:#f1f1f1">
             <tr>
                 <td><asp:Label runat="server" ID="lbl1" Font-Bold="true" ForeColor="Red"/></td>
             </tr>
           
             <tr>
                 <td><asp:Label runat="server">Username</asp:Label></td>
                 <td><asp:TextBox runat="server" ID="txtUser" placeholder="Username"/></td>
                 <td><asp:RequiredFieldValidator ID="rfvUser" runat="server" ControlToValidate="txtUser" ErrorMessage="*" ForeColor="Red" Font-Bold="true"  ValidationGroup="LoginInfo"/></td>
             </tr>
             <tr>
                 <td><asp:Label runat="server">Password</asp:Label></td>
                 <td><asp:TextBox runat="server" ID="txtPass" TextMode="Password" placeholder="Password"/></td>
                 <td><asp:RequiredFieldValidator ID="rfvPass" runat="server" ControlToValidate="txtPass" ErrorMessage="*" ForeColor="Red" Font-Bold="true"  ValidationGroup="LoginInfo"/></td>
             </tr>
             
             <tr >
                 <td></td>
                 <td><asp:Button runat="server" Text="Login" ID="btnLogin" CssClass="button" Width="210"  OnClick="btnLogin_Click" ValidationGroup="LoginInfo"/></td>
             </tr>
</table>

这里我一直在尝试：

Here what i have been trying :

<script>

（document）.ready（function myfunction（）{

(document).ready(function myfunction () {

（' #btLogin'）。click（function（）{
var user =

('#btnLogin').click(function () { var user =