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by: Sandra |
last post by:
I am using a VB6 COM object with an asp.net project. I am storing the
COM object in a session variable but am having a problem accessing the
COM object from the session variable.
I am getting the error:
QueryInterface for interface object.class failed
I am able to create new instances of the object with no problems but
as soon as I cast the session variable to the object like so:
CType(Session("object"),object.class)
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by: jakk |
last post by:
Below is the exception that Iam getting. It says that the DataView that
Iam storing in the session is not Serializable. BUt works fine if I
store in the inproc session and fails if I switch to storing the
session in Sql Server.
Please let me know if Iam doing anything wrong.
Unable to serialize the session state. Please note that
non-serializable objects or MarshalByRef objects are not permitted when
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by: MrShovel |
last post by:
I'm new to this ASP.NET caper and have the following questions.
I have a TestObject that contains about 50 fields of data and 3 member
procedures. Below is a simplified explanation of what I do.
At the start of each session I initialise this TestObject.
On entering every page I create a local TestObject and do this:
TestObject = Session("TestObject")
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by: Curt tabor |
last post by:
Hi,
I have several pages in my app that all use the same
oleDBConnection(s). When this connection gets created, I store it as a
Session variable so that other pages can access it w/o having recreate
new connections every time they load.
I noticed during development that when ever the app first started, the
connection would not be in Session when I navigvated to a page that
used it. But with subsequent calls everything would be fine and...
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by: Mark Rae |
last post by:
Hi,
This relates to the previous thread "Disappearing Sessions", but is a bit
more generic so I thought I'd start a new thread. This one relates to the
storing of objects in Session once only to prevent the system having to
constantly query the database for the same information.
I'm currently upgrading a v1.1 app to v2 (that's all I seem to do these
days!), and it contains a class called CUser which holds details of the
currently...
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by: david |
last post by:
I have a class with some business-logic and with every roundtrip, I need
an instance of this class, so I have to create it, every time again.
That doesn't seem very efficient. I thought it would be 'better' to store
an instance of this class in a session-variable, so it's available all the time
and needs to be instanced only once.
Is this, generally speaking, a good idea, storing objects in session-variables ?
Do you guys ever use this...
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by: RSH |
last post by:
Hi,
I have a situation where I have created an object that contains
fields,properties and functions. After creating the object I attempted to
assign it to a session variable so i could retrieve the information it
contained on another page. This was significant because I am initially
loading the data from the database, then storing relevent information in the
object, I am allowing users to change the data then preview the
modifications...
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by: =?Utf-8?B?YmFzdWxhc3o=?= |
last post by:
Hi;
I want to store a datatable (or an arraylist) as a session variable but when
I try;
Session = al_RecNo;
I get an error that;
"Cannot implicitly convert type 'System.Collections.ArrayList' to 'string'"
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by: J055 |
last post by:
Hi
I have the following code. I upload an XML file using the FileUpload object,
store the stream in a session so the user gets the chance to confirm some
options then pass the stream from the Session to an XmlReader.
if (performImport == false)
{
Session = fileUpload1.FileContent;
//... some other code
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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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...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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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...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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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
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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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...
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