Revert back to original page after login in asp.net using c#

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suppose the user is opening the course page to see course info i want to chck that if the user is login then user can access page else it goes to loginpage through " Response.Redirect("Login.aspx");" first login then revert to the page from where it goes to login page by using this
Response.Redirect(Request.Cookies["path"].Value.ToString());

but it is not working it is giving the error that
Object reference not set to an instance of an object.

Tell me some other way to do this or pick out the error plz

Posted 25-Apr-13 5:12am

laiza ramal

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Prasad Khandekar 25-Apr-13 11:22am

From course page if use is not logged in then redirect user to login page with query string parameter say returnUrl=course page. In the login process after successful login grab this query string parameter and redirect user to that page.

laiza ramal 25-Apr-13 11:57am

I am using these codes can you help me with this
course.aspx.cs
if (Request.Cookies["username"] != null)
{

}
else
{
Response.Cookies["path"].Value = Request.Url.AbsolutePath.ToString();
Response.Redirect("login_page.aspx");
}
login_page.aspx.cs

Session["username"] = txtusername.Text;
Response.Cookies["username"].Value = txtusername.Text;
Response.Redirect(Request.Cookies["path"].Value.ToString());

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OriginalGriff · Answer 1 · 2013-04-25T05:21:00

Solution 1

If you do this the proper way - using Membership - then all of that is automatic and happens behind the scenes. If the user tries to open a page without logging in, he is auto redirected to the login page, then back where he wanted to g when he logs in successfully.

It's easy to do: MSDN Introduction to Membership[^] will walk you though the whole process.

Posted 25-Apr-13 5:21am

OriginalGriff

Comments

Espen Harlinn 25-Apr-13 11:23am

You're right, and there is no need to reinvent the wheel ...

laiza ramal 25-Apr-13 12:00pm

I am using these codes can you help me with this
course.aspx.cs
if (Request.Cookies["username"] != null)
{

}
else
{
Response.Cookies["path"].Value = Request.Url.AbsolutePath.ToString();
Response.Redirect("login_page.aspx");
}
login_page.aspx.cs

Session["username"] = txtusername.Text;
Response.Cookies["username"].Value = txtusername.Text;
Response.Redirect(Request.Cookies["path"].Value.ToString());

i dont know how to revert to original page using membership

OriginalGriff 25-Apr-13 12:03pm

Read the MSDN link I posted!

laiza ramal 25-Apr-13 11:56am

My project has many folders each folder has its own config file should i add membership to all files
can i revert to original page after login using membership ?

OriginalGriff 25-Apr-13 12:03pm

If you use membership, you set the access level by folder - so a login required folder has a stub web.config which affects it and all it's sub-folders. The stub contains only the stuff needed for membership control, so your main web.config is not duplicated.

laiza ramal 25-Apr-13 12:59pm

thanks alot for your help

OriginalGriff 25-Apr-13 13:58pm

You're welcome!