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I think you need to use Database.
Once it is modified, just store it into database and from any other tab / in any other browser in the world, it will be shown updated.
No need for ViewState / Session etc. 
If this is your temporary storage, u might use temporary database tables as well. ![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
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I dont think this is the solution.
Everything Is Possible!
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Then please let me clear this.
If you open a new browser tab, it doesnt allow you to access any data from other tab because of security issues.
Mozilla retains its session data for every tab. So in case of mozilla, it do work in multiple tabs. But in IE it doesnt.
One thing that you might use is Cookie. If you call a server for same domain, you can use it to send data.
Say you call
www.xyz.com
it can create cookie data in browser based on the address. So that after a certain while or at the same instant if a new browser is opened and same address is navigated, you will find the data from cookie easily.
Say you write like this :
<code>Response.Cookies["txtCookie"].Value = this.txtcookie.Text;
Response.Cookies["txtCookie"].Expires = DateTime.Now.AddDays(1);
Now from another browser instance if you call
string txtCookie = Request.Cookies["txtCookie"].Value;
it will give you appropriate data. By this way you can send data to different browser instances.
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Abhijit Jana wrote: lblWelcome.Text = "Welcome : " + Session["CustomerName"];
This won't compile. Adding a string and object is invalid. You need ToString().
lblWelcome.Text = "Welcome : " + Session["CustomerName"].ToString(); 
Best wishes,
Navaneeth
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My Bad. Thanks for correcting me !!
Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
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is there any workaround for this issue?
Everything Is Possible!
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I have already suggested one workaround I guess...
See,
Viewstate is stored in page (So Rejected)
Session is stored in server but for a single session (Rejected as IE opens a new session for each tab)
Application is User Independent.
Cookie ... Domain specific. Its possible to use this, But I dont like it as client can easily clear that. Also if is browser specific. Say one person opens the same site once in IE another in Mozilla.. Cookies will be different, (Hence Rejected)
So there is only one option. Just change it globally, so that anywhere the change is reflected.
Hope you got it.
cheers.
![Rose | [Rose]](https://www.codeproject.com/script/Forums/Images/rose.gif)
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I really appreciate your help. but still i have to make changes in all the content pages(i.e. globally) right.
Isn't there way by which i have to make changes in the masterpage itself?
Everything Is Possible!
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You are most welcome..
Dont forget to click "good answer" if it actually helped you and also to mark that as answer for future reference. 
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No you can do that in Masterpage as well. Just write your code in masterpage page_load and it will work perfectly. 
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No dear, it does not work.
Everything Is Possible!
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Tell me what you did so far.
Just do like this :
write
Response.Cookies["txtCookie"].Value = myid;
Response.Cookies["txtCookie"].Expires = DateTime.Now.AddDays(1);
inside your masterpage, and it will be accessible to any page that inherits masterpage (also normal pages)
I have done this a lot of times, and it worked perfectly...
To request the cookie use
Request.Cookies["txtCookie"]
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but my id keeps on changing depending on the no. of tabs opened(Firefox). And Each tab has to maintain different ids(customerId for instance).
Example
I have a gridview having multiple customers.
if i open multiple customer details on multiple tabs then there should be different customerid assigned to different pages.
In case if i use cookie then it will store a single customerid and when the page makes a request then this id will be assigned to all the pages. I dont want to do like this.
I dont think, this is a solution(i.e. Cookie)
Everything Is Possible!
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Ok..
As per your requirement is concerned, I think database is the best solution. Even If I was doing this application, I will always use Database.
Actually session/viewstate cannot be used to do what you want.. .thats for sure.
Other than that, you can use Application object which will reflect to all the session, ... But believe me, from my personal experience I would suggest not to use it, because Server memory is very important, and if your application is using excessive server memory, it may be of high probability of getting the site down any time.
So, You have only 2 option,
1. Cookie (Which you dont want) : you can store as many customer ids as you want. As this is stored in client side, performance will not be hampered for the site.
2. Database / XML file in server : I think this is the best way. Its secured and everyone in your situation would have chosen this.
Now it depends on you which one you choose.
Let me know about it.
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I really appreciate your help but i dont think this is a better solution.
I would rather create a public property in the masterpage and cast the masterpage in all my content pages(there are around 40-50 pages).
although it is a tedious work.
I will store the id in the content page's viewstate.
Everything Is Possible!
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But where it will get the Id ... In server side ??
Id should be stored at least somewhere to communicate. Do you think only a property can make things ok. Every time a web request is made a new object of the whole page will be created. If you open a new tab, there will be no communication between the original page(Even session is different)
So it will always hold the default value of the property. Viewstate will be refreshed for every page, so it cant get the values that you created in another page.
Anyways...
thanks for your appreciation. But I am still not sure what you are upto...
Best wishes.
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I will assign the viewstate to the property.
Regards,
Suresh Dayma
Everything Is Possible!
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Create the public property in Master page.
Cast the master page in content page
MasterPage mymasterpage = Page.Master as MyMasterPage;
Use the property in content page to access the customer name.
Response.Write(mymasterpage.CustomerName);
Try it, if it is working
Regards
Aftab Sindhi
.NET Application Developer
U.A.E
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I dont want to make changes in all the content pages because there are around 40-50 pages.It's tedious to incorporate this changes to all the files.
Is there a way by which i have to modify only the master page?
Everything Is Possible!
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how can i rotate an image in image control by arbitrary angles ??
M.Alizadeh
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thanks for your help
but it coudnt help me
i want to rotate an image in image control not in a new page...(first link)
seccend is for win app:
pictureBox.Image = Utilities.RotateImage(img,(float) angle.Value );
image has not image properties
M.Alizadeh
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AFAIK, html image control couldnt be rotated. You can define the size of the img but cant rotate.
To do this, you need to rotate the image in the server and produce another image and show it in browser. Use graphics object to draw a new image rotating it in an angle and show it in browser.
This article could be a good help for you :
Image Rotation in .NET[^]
After you rotate the image, show it using img tag.
On the other hand:
If you want to rotate in browser itself, you might use Flash / silverlight which are capable of doing this.
Hope you got this.
Cheers
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I think this javascript uses moveto function to actually rotate an image.
Use this Javascript
http://www.walterzorn.com/scripts/wz_rotateimg.js
I think you can do this without Flash and Silverlight.
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