473,804 Members | 2,194 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Passing Objects

How do I pass class object references between ASP.NET webforms ?
Nov 18 '05 #1
2 1416
It depends on what you are talking about here. In general, since HTTP is
stateless, the objects are destroyed when the page is finished with
processing. IN order to pull an object across pages, you generally will
shove the object into session. For app level variables, you can set it in
Application, or use static (Shared in VB.NET) variables.

Having said that, you should be specific about what you are trying to do, as
there are different possibilities depending on the form layout. For example,
if you want to handle form variables in another page after a
server.transfer , you can still pull from ViewState in most instances.

--
Gregory A. Beamer
MVP; MCP: +I, SE, SD, DBA

*************** *************** *************** *************** **********
Think Outside the Box!
*************** *************** *************** *************** **********
"Jeremy" <je************ *@blueyonder.co .yk> wrote in message
news:uZ******** ******@TK2MSFTN GP09.phx.gbl...
How do I pass class object references between ASP.NET webforms ?

Nov 18 '05 #2
By session variables.

Page 1:
myObject mobj = new myObject();
Session["mobj"] = mobj;

Page 2:
myObject mobj = (mobj)Session["mobj"];

"Jeremy" <je************ *@blueyonder.co .yk> schrieb im Newsbeitrag
news:uZ******** ******@TK2MSFTN GP09.phx.gbl...
How do I pass class object references between ASP.NET webforms ?

Nov 18 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

0
1999
by: lawrence | last post by:
I've read that objects should always be passed by reference to other objects. I've also read that future versions of PHP may not support runtime passing by reference (default passing by reference as parameters to a function), which is how I'm doing it right now. I'm wondering how any of you might otherwise handle this? Is something like the following compitable with good practice, assuming that $importantClass and $dbClass are two...
3
14960
by: domeceo | last post by:
can anyone tell me why I cannot pass values in a setTimeout function whenever I use this function it says "menu is undefined" after th alert. function imgOff(menu, num) { if (document.images) { document.images.src = eval("mt" +menu+ ".src") } alert("imgOff_hidemenu"); hideMenu=setTimeout('Hide(menu,num)',500);
9
4815
by: justanotherguy63 | last post by:
Hi, I am designing an application where to preserve the hierachy and for code substitability, I need to pass an array of derived class object in place of an array of base class object. Since I am using vector class(STL), the compiler does not allow me to do this. I do realize there is a pitfall in this approach(size of arrays not matching etc), but I wonder how to get around this problem. I have a class hierachy with abstract base...
8
2118
by: Dennis Myrén | last post by:
I have these tiny classes, implementing an interface through which their method Render ( CosWriter writer ) ; is called. Given a specific context, there are potentially a lot of such objects, each requiring a call to that method to fulfill their purpose. There could be 200, there could be more than 1000. That is a lot of references passed around. It feels heavy. Let us say i changed the signature of the interface method to:
6
3262
by: Scott Zabolotzky | last post by:
I'm trying to pass a custom object back and forth between forms. This custom object is pulled into the app using an external reference to an assembly DLL that was given to me by a co-worker. A query-string flag is used to indicate to the page whether it should instantiate a new instance of the object or access an existing instance from the calling page. On the both pages I have a property of the page which is an instance of this custom...
3
2690
by: Marc Castrechini | last post by:
First off this is a great reference for passing data between the Data Access and Business Layers: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnanchor/html/Anch_EntDevAppArchPatPrac.asp I use my own classes in the Business layer. I want to keep the Data Access layer from requiring these classes so I tried passing a Datarow between the layers and it seems to work good for me. Constructing the datarow in the Class...
11
8134
by: John Pass | last post by:
Hi, In the attached example, I do understand that the references are not changed if an array is passed by Val. What I do not understand is the result of line 99 (If one can find this by line number) which is the last line of the following sub routine: ' procedure modifies elements of array and assigns ' new reference (note ByVal) Sub FirstDouble(ByVal array As Integer()) Dim i As Integer
9
3806
by: Greger | last post by:
Hi, I am building an architecture that passes my custom objects to and from webservices. (Our internal architecture requires me to use webservices to any suggestion to use other remoting techniques are not feasible) The question is; Given that I have a Person object with a private set for id. What is the recommended approac in passing that object to the web service
7
3314
by: TS | last post by:
I was under the assumption that if you pass an object as a param to a method and inside that method this object is changed, the object will stay changed when returned from the method because the object is a reference type? my code is not proving that. I have a web project i created from a web service that is my object: public class ExcelService : SoapHttpClientProtocol {
4
2817
by: Deckarep | last post by:
Hello fellow C# programmers, This question is more about general practice and convention so here goes: I got into a discussion with a co-worker who insisted that as a general practice all objects should be passed by reference using the ref keyword generally speaking because as the writer of code you are conveying your intentions that an Object should/can be modified by your function.
0
9595
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
10603
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
0
10353
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
10356
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
9176
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
0
5536
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
1
4314
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
2
3836
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
3003
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.