how to redirect to particular page after login?

Question

User-526823404 posted

hi,

any body knows how to redirect to particular page in the url after login in C# ?

Example

1) the home page is www.google.com/login.aspx it is login protected

2) in this application i have another page(post.aspx)  www.google.com/post.aspx?a=25&b=35;

the user try to enter the 2nd line of the link,  if the session is not valid it will automatically redirect to the first link, after enter the login id and pwd it should go directly to to the 2nd line of the link how?

expect the answer from masters.........

 

 

Answer 1

User307176038 posted

on ur login.aspx.cs after checking the right username and password you have to write code like,

FormsAuthentication.RedirectFromLoginPage(userName.Text, true/false);

this is the perfect way of doing the same, if you have any confusion revert back

Answer 2

User-2008565010 posted

when using Forms Authentication .. you can make use of ReturnUrl

string returnUrl = Request.QueryString["ReturnUrl"];

// check if it exists, if not then redirect to default page

if (returnUrl == null) returnUrl = "~/Default.aspx";

Response.Redirect(returnUrl);

or check this: http://geekswithblogs.net/ranganh/archive/2005/04/25/37612.aspx

Answer 3

User-526823404 posted

i saw the article( http://www.aspnettutorials.com/tutorials/validation/authentication-aspnet2-csharp.aspx) posted regarding this.

Should i add the below code in web.config? I dont want to add the user and password in web.config. Is there any other way to do this? Because i am using middle tier server for authentication for security reason.

<authentication mode="Forms">
<forms name=".SecurityDemo" loginUrl="LoginVerifyCsharp.aspx">
<credentials passwordFormat="Clear">
<user name="John" password="Foo"/>
</credentials>
</forms>
</authentication>
<machineKey validationKey="AutoGenerate" decryptionKey="AutoGenerate"/>
<authorization>
<deny users="?"/>
</authorization>

Answer 4

User-2008565010 posted

it is not necessary to store username password in web.config...

in example you used above - "FormsAuthentication.Authenticate(tbName.Text, tbPass.Text))" method is used for authentication....

you can use your own mechanism to Authenticate ...and decide if credentials entered are valid or not...

are you using built-in asp.net Login Control?

Answer 5

User-526823404 posted

yes

Answer 6

User-2008565010 posted

So if you want to use LoginControl with your own database ... you can use Authenticate Event of login control like this:

http://www.netomatix.com/Development/LoginControlBasic.aspx

http://forums.asp.net/t/1250726.aspx

Answer 7

User-1763611275 posted

Hi

try this in login page

    protected void Login1_LoginError(object sender, EventArgs e)
    {
        //There was a problem logging in the user

        //See if this user exists in the database
        MembershipUser userInfo = Membership.GetUser(Login1.UserName);

        if (userInfo == null)
        {
            //The user entered an invalid username...

            Login1.FailureText = "There is no user in the database with the username " + Login1.UserName;
        }
        else
        {
            //See if the user is locked out or not approved
            if (!userInfo.IsApproved)
            {

                Login1.FailureText = "Your account has not yet been approved by the site's administrators. Please try again later...";
            }
            else if (userInfo.IsLockedOut)
            {
                Login1.FailureText = "Your account has been locked out because of a maximum number of incorrect login attempts. You will NOT be able to login until you contact a site administrator and have your account unlocked.";
            }
            else
            {
                //The password was incorrect (don't show anything, the Login control already describes the problem)
                Login1.FailureText = string.Empty;
            }
        }

    }

    protected void Login1_LoggedIn(object sender, EventArgs e)
    {
        TextBox TextBox1 = (TextBox)Login1.FindControl("UserName");
        //MembershipUser user = Membership.GetUser(TextBox1.Text);
        MembershipUser user = Membership.GetUser(Login1.UserName);

        if (Request.QueryString["ReturnUrl"] != null)
        {
            Login1.DestinationPageUrl=Request.QueryString["ReturnUrl"].ToString();
        }
        else
        {

            //-- check if login user in Admin role
            if (Roles.IsUserInRole(TextBox1.Text, "Admin"))
            {
                Login1.DestinationPageUrl="~/Admin/Default.aspx";

            }
            //-- check if login user in User role
            else if (Roles.IsUserInRole(TextBox1.Text, "User"))
            {
                Login1.DestinationPageUrl="~/User/Default.aspx";
            }
        }
       
    }

Good Luck

Answer 8

User-642698451 posted

I wanted to know how this events Login1_LoginError and Login1_LoggedIn are wired to the Login1.aspx?

Answer 9

User-2008565010 posted

e.g. <asp:Login ID="Login1" runat="server" OnLoggedIn="Login1_LoggedIn" OnLoginError="Login1_LoginError"
            OnLoggingIn="Login1_LoggingIn">

note: If you are using VB.NET you might need a little different way.

Or you can do it by double clicking the event in the properties window of login control.