用户在asp.net中成功登录时如何启动会话（c＃） [英] how to start session when user logins successfully in asp.net (c#)

问题描述

请告诉我代码，了解如何在用户成功登录时启动会话。请帮助朋友。

Please give me code for understanding how to start session when a user login successfully.Please help friends.

推荐答案

请看一下：

会话开始后ASP.NET会话结束事件立即触发 - 已解决 [ ^ ]

http：// csharpdotnetfreak.blogspot.com/2008/12/user-validation-across-pages-using.html [ ^ ]

开始时可能是个好点

Please have a look:
ASP.NET Session End Event Fires Immediately After Session Start - Resolved[^]
http://csharpdotnetfreak.blogspot.com/2008/12/user-validation-across-pages-using.html[^]
The might be a good point to start with

假设用户名和密码存储在数据库中se，ex：存储在登录表中

登录页面：



protected void butnLogin_Click（对象发送者） ，EventArgs e）

{

SqlConnection con1 = new SqlConnection（）;

con1.ConnectionString = ConfigurationManager.ConnectionStrings [ConnectionString]。 ToString（）;

string sql1 =select * from Login where Email = @email and Pass = @pass;

SqlCommand cmd1 = new SqlCommand（sql1，con1） ;

cmd1.Parameters.AddWithValue（email，txtEmail.Text）;

cmd1.Parameters.AddWithValue（pass，txtPass.Text）;



con1.Open（）;

SqlDataReader dr = cmd1.ExecuteReader（）;

if（dr.Read（ ））

{

con1.Close（）;

会话[UserAuthentication] =用户名;

Response.Redirect（main.aspx）;

}





else

lblLoginFaild.Visible = true;



}





in mainPage.aspx



protected void Page_Load（对象发送者，EventArgs e）

{

if（Session [UserAuthentication] == mull）

{

Response.Redirect（〜/ login.aspx）;

}

}

Assuming if the user name and password stored in database , ex : stored in login table
in login page:

protected void butnLogin_Click(object sender, EventArgs e)
{
SqlConnection con1 = new SqlConnection();
con1.ConnectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ToString();
string sql1 = " select * from Login where Email = @email and Pass = @pass";
SqlCommand cmd1 = new SqlCommand(sql1, con1);
cmd1.Parameters.AddWithValue("email", txtEmail.Text);
cmd1.Parameters.AddWithValue("pass", txtPass.Text);

con1.Open();
SqlDataReader dr = cmd1.ExecuteReader();
if (dr.Read())
{
con1.Close();
Session["UserAuthentication"] = username;
Response.Redirect("main.aspx");
}


else
lblLoginFaild.Visible = true;

}


in mainPage.aspx

protected void Page_Load(object sender, EventArgs e)
{
if ( Session["UserAuthentication"] == mull)
{
Response.Redirect("~/login.aspx");
}
}

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