I badly need to know How to pass bulk data(dataset) between webpages. Please help....

Please do not crosspost
http://p2p.wrox.com/topic.asp?TOPIC_ID=19282


Hal Levy
Web Developer, PDI Inc.

NOT a Wiley/Wrox Employee

You could do this by using the session object

Let's say you have a dataset.
your dataset name is "ds".


Session("dataset") = ds

to retreive.

ds = Session("dataset")


Good Luck!

If you retrieve the data from the Session again, you need to type cast it to the appropriate type.

VB.NET:

MyDataSet = CType(Session("dataset"), DataSet)
(or use DirectCast instead of CType)

C#:
MyDataSet = (DataSet) Session("dataset");

Cheers,

Imar
---------------------------------------
Imar Spaanjaars
Everyone is unique, except for me.
While typing this post, I was listening to: Trash by KoRn (Track 14 from the album: Issues) What's This?

But using session for passing dataset(with lot of data)between pages consumes lot of resources. There should be some other way. Do any one know that?. It is important and urgent...Please.....

There aren't that many options left if you need to "pass data from page to page":

1. Storing it in a Session is a quick and easy way, but may indeed consume a lot of resources.

2. Store it in the cache. ASP.NET will automatically manage the cache. Once it gets full, it automatically deletes old items (those with the lowest priority). This way, it won't consume as much resources while you can still retrieve the data pretty quick.

3. Get it from the database again. Depending on your query and database server, this may not be as bad as it sounds. Of course it's slower than other methods but it may still be acceptable, performance wise.

Can you please not stress people up with "important and urgent"? Of course it's important and urgent,otherwise you wouldn't be posting here. But what may be important and urgent to you may have no importance to me. So, it's not very likely people are going to respond quicker when you say it's urgent .... Just a thought.

Cheers,

Imar
---------------------------------------
Imar Spaanjaars
Everyone is unique, except for me.

Regarding Imar's suggestions #2: Good idea, but remember that the cache is then application scope so if the dataset is specific to one user, the cache won't solve the problem.

Can you describe a bit more about how you are getting from one page to another? Depending on how you need to do it there may be a technique that will avoid the use of any of the state collections.

I meant to ask: Are you redirecting to the new page? Or is the new page just coming up at some point in a user's session?

i am using Modal Form Concept.
i have DataGrid in the popUp form.
and want to pass DataGrid values(or Dataset) to
Main(Base)Form.
Server.Transfer method Cannot be Used,Coz
Everytime the requsted form(Parent) is opening as New Page.
So....What is the Solution??????????

If you use some kind of server side solution for this, then you would need your modal form to save the data, then tell the parent page to refresh. That's about the only way you can do it. A client-side solution would entail a good amount of javascript programming.