Re: How to maintain Login status when the sysem is suddenly shoutdown - ASP.NET Discussion Boards

A.Muthunagai2-Apr-08 0:06

2-Apr-08 0:06

Hi All,
I'm developing one application in asp.net 2.0
In that application logged in user can view the pages. If the user close the page with out signing out means how can I maintain their login status?
If I use the javascript in body unload means, I have to implement this script in many of the pages.
Give some better idea to solve this prob.

Thanks in Advance
A.Muthunagai

Re: How to maintain Login status

N a v a n e e t h2-Apr-08 0:20

N a v a n e e t h

2-Apr-08 0:20

Muthunagai.A wrote:
If the user close the page with out signing out means how can I maintain their login status?

Are you maintaining any DB flags for user status ? Usually you need to check the session existence in each page_load. If session is not exist, redirect user to the login page.

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Re: How to maintain Login status

eyeseetee2-Apr-08 0:20

eyeseetee

2-Apr-08 0:20

What do you mean by

Muthunagai.A wrote:
how can I maintain their login status

please elaborate

Re: How to maintain Login status

A.Muthunagai2-Apr-08 1:18

A.Muthunagai

2-Apr-08 1:18

Yes,Maintain the username in a session,if there is a null value means,I will redirect to login page. There is no prob in that.
What I want is ,if the user suddenly used the window after logged in means how can I capture their status? and how to update the Database?
I updated the Databse for login status in sign out button click and session_end of Global.asax.
There are many pages in my application,after login.So How to update the database when the user suddenly closed the browser window?

Re: How to maintain Login status

Sandeep Akhare2-Apr-08 2:13

Sandeep Akhare

2-Apr-08 2:13

There is one more way
Create a base class that will have a method which check the session if user is logged in or not call that method from page load of base class
Now your page should derived from this base class
Now if user closes the browser you want to sign out user
Create a cookie like person id for the session level and check that cookie
if user close the browser without sign out, then cookie will also get deleted now if he open in new browser the cookie will not be available

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Re: How to maintain Login status

A.Muthunagai2-Apr-08 19:41

A.Muthunagai

2-Apr-08 19:41

if the user clear the cookies means how can we maintain the status?
Any other idea? other then this?

Re: How to maintain Login status

Sandeep Akhare2-Apr-08 20:45

Sandeep Akhare

2-Apr-08 20:45

First tell me what problem are you facing when user closes the browser without logged out. And open the application in new browser.

Muthunagai.A wrote:
if the user clear the cookies means how can we maintain the status?

If user clears the cookie he will redirect to login page

Muthunagai.A wrote:
Any other idea?

No friend, i don't see any other idea as you need to use client side state management for this as server never knows about the browser states whether it is open or closed Smile | :)

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Re: How to maintain Login status when the sysem is suddenly shoutdown

A.Muthunagai2-Apr-08 20:30

A.Muthunagai

2-Apr-08 20:30

If the system suddenly hang or shoutdown means,how to maintain the login status?

Re: How to maintain Login status when the sysem is suddenly shoutdown

Sandeep Akhare2-Apr-08 20:40

Sandeep Akhare

2-Apr-08 20:40

Muthunagai.A wrote:
If the system suddenly hang

Ya you should not logged out the user but at certain interval of time,
If it exceeds more than 20 min(depends on business ) your session should expired so user need to logged in again.

Muthunagai.A wrote:
shoutdown means,how to maintain the login status?

If system get shut down then you should not maintain the status as logged in user. The user should not logged in by default after Restarting the machine. As there should be a new session for that user

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Please help me..How to calculate city and country ip address of the system.

saravanan12july1-Apr-08 23:26

saravanan12july

1-Apr-08 23:26

Hai,

How to calculate city and country ip address of the system.

Re: Please help me..How to calculate city and country ip address of the system.

N a v a n e e t h2-Apr-08 0:14

N a v a n e e t h

2-Apr-08 0:14

GeoIp[^]

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reference hyperlink

eyeseetee1-Apr-08 21:51

eyeseetee

1-Apr-08 21:51

Hi
I have a hyperlink field which is in a template field in a gridview
I have given it an ID

However in the c# code behind I cant seem to reference it, why would this be?
I want to be able to control it using the c# code

thnaks!

Re: reference hyperlink

N a v a n e e t h1-Apr-08 22:21

N a v a n e e t h

1-Apr-08 22:21

Since it is in the gridview, you should use FindControl() method to find the control from an id.

HyperLink hyp = GridView1.Rows[index].FindControl(id) as HyperLink;

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Re: reference hyperlink

eyeseetee1-Apr-08 22:29

eyeseetee

1-Apr-08 22:29

Hi
Should I use [index] or should I put the number of the row in there as it hasnt found the control.

thanks!

Re: reference hyperlink

N a v a n e e t h1-Apr-08 22:46

N a v a n e e t h

1-Apr-08 22:46

You should put the row index. If you want to find the control from 5th row, index would be 4.

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Re: reference hyperlink

eyeseetee1-Apr-08 22:51

eyeseetee

1-Apr-08 22:51

but if I want to do it for the whole column, how would I do that? gridview.columns[x] yeah?

Re: reference hyperlink

N a v a n e e t h1-Apr-08 22:52

N a v a n e e t h

1-Apr-08 22:52

Then column index also should be specified. Something like

GridView1.Rows[inde].Columns[index].FindControl(id)

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Re: reference hyperlink

eyeseetee2-Apr-08 0:23

eyeseetee

2-Apr-08 0:23

How could I disable every row rather then just the one row?

thanks

Re: reference hyperlink

N a v a n e e t h2-Apr-08 0:27

N a v a n e e t h

2-Apr-08 0:27

.netman wrote:
How could I disable every row rather then just the one row?

What do you mean by that ? Explain the problem in-detail.

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Re: reference hyperlink

eyeseetee2-Apr-08 1:11

eyeseetee

2-Apr-08 1:11

Basically I have a gridview which would contain 20 rows
One of the columns is a hyperlink
If the user doesnt have the correct rights I would like to disable the hyperlink for every row(i.e. disable the column)
Howe could I do that?
thanks Smile | :)

Re: reference hyperlink

N a v a n e e t h2-Apr-08 1:38

N a v a n e e t h

2-Apr-08 1:38

Check RowDataBound event which will be fired when rows are bounded. In this event, check for permission, if there is no permission, find the hyperlink and set it's enabled property.

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Re: reference hyperlink

eyeseetee2-Apr-08 2:57

eyeseetee

2-Apr-08 2:57

yeah but the problem is, i cant find the hyperlink the code isnt owkring below
HyperLink hyp = GridView4.Rows[?].FindControl(hyperlink);
I need to find the hyperlink in all the rows not just one how can I do this?
thanks

Re: reference hyperlink

N a v a n e e t h2-Apr-08 3:12

N a v a n e e t h

2-Apr-08 3:12

RowDataBound event will be fired for each row. You need to check the event parameter passed to that handler. If you are not doing this on row data bound event, you have to iterate through each row and do the checking.

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Re: reference hyperlink

eyeseetee2-Apr-08 4:21

eyeseetee

2-Apr-08 4:21

sorted it:

protected void Gridview4_RowDataBound(object sender, GridViewRowEventArgs e)

for (int x = 0; x < GridView4.Rows.Count; x++)
{
GridViewRow row = GridView4.Rows[x];
HyperLink hyp = ((HyperLink)row.FindControl("hyperlink"));
hyp.Enabled = false;
}

cheers for your help

Re: reference hyperlink

N a v a n e e t h2-Apr-08 4:29

N a v a n e e t h

2-Apr-08 4:29

This is not a good approach. Keep it in mind, RowDataBound event will be fired when each row is bounded with the value. A better approach would be

protected void Gridview4_RowDataBound(object sender, GridViewRowEventArgs e)
{
   HyperLink hyp = e.Row.FindControl("hyperlink") as HyperLink;
   hyp.Enabled = false;
}

GridViewRowEventArgs has a Row property which refers the current row which is binding. You can use that instead of looping through the entire gridview.

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