ASP.NET

22-Jul-08 22:44

If I have a VB.NET class (utilitised by an ASP.NET based website) which has shared variables, properties etc, what is the scope of the variables?

What I mean, is the value of the variable retained and visible only within the user session or over the application has a whole?

Is my question clear?

Thanks

Steve Jowett
-------------------------
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eyeseetee22-Jul-08 22:47

22-Jul-08 22:47

I think a session is shared throughout the app in the same browser

Anand Desai22-Jul-08 22:49

Anand Desai

22-Jul-08 22:49

I'm not deep in Visual Basic but as much I can imagine, maximum scope will be only within that class..

Anand Desai
Developer
Atharva Infotech

Steven J Jowett22-Jul-08 23:28

22-Jul-08 23:28

FYI: If I was writing a VB.NET Windows Forms project and had a class containing Shared variables for example

Public Class Common

Public Shared myNumber As Int32

End Class

I could set the value in one class as follows

Public Class PartOne

Public Sub New()
Common.myNumber = 100
End Sub

End Class

and later retrieve the value in another class as follows

Public Class PartTwo

Public Sub New()
Messagebox.Show(Common.myNumber)
End Sub

End Class

A messagebox will be displayed showing the value of 100

The scope of the shared value is the session on the PC

Steve Jowett
-------------------------
It is offen dangerous to try and see someone else's point of view, without proper training. Douglas Adams (Mostly Harmless)

N a v a n e e t h23-Jul-08 0:03

23-Jul-08 0:03

Anand Desai wrote:
only within that class..

NO. It will be shared to all threads in the current application domain. When application domain unloads, it's value will be lost.

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

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N a v a n e e t h23-Jul-08 0:02

23-Jul-08 0:02

shared in VB is static in C#, right ? It will have a lifetime till the application domain recycles. Which means multiple users will have the same value.

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

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Steven J Jowett23-Jul-08 2:03

Microsoft index searching

23-Jul-08 2:03

N a v a n e e t h wrote:
shared in VB is static in C#, right ?

Yes that is correct; I could think of the C# equivlent.

Steve Jowett
-------------------------
It is offen dangerous to try and see someone else's point of view, without proper training. Douglas Adams (Mostly Harmless)

eyeseetee22-Jul-08 22:24

Re: Microsoft index searching

22-Jul-08 22:24

Hi
I am using Microsoft Index Searching to search my website.
The problem is that when someone searches for a phrase which is say 3 words long it looks for the 3 individual words rather then the phrase.
How do I search for a phrase?

thanks

Steven J Jowett22-Jul-08 22:48

Re: Microsoft index searching

22-Jul-08 22:48

Try enclosing the search phrase into quotation marks e.g.

If the user enters This is my search then you will need to reformat the string to "This is my search"

Steve Jowett
-------------------------
It is offen dangerous to try and see someone else's point of view, without proper training. Douglas Adams (Mostly Harmless)

eyeseetee22-Jul-08 23:22

google translator - error - page is auto refreshing..any one can help me...

22-Jul-08 23:22

I currently put the search criteria in:

'" + searchText + "'

rashmithakur22-Jul-08 21:51

rashmithakur

22-Jul-08 21:51

hi to all,

this is rashmi, from mumbai asp.net developer ..

we are developing website name: www.discareuropa.com this has to develop in 2 language English & Español

we have converted english to Español..through google translator and html pages are working fine..

Problem:-
if we use server side control..then we are getting problem

1st Translator language from English to Español, you will notice every thing change to Español....then put user name: admin password: admin (left side)

and page will redirected to lighterBrand.aspx ..and page is auto refreshing and converting into Espanol, (as we want) ..but auto refreshing it is not stoping, ..so kindly help me how can i stop this...

thanks/rashmi

Re: google translator - error - page is auto refreshing..any one can help me...

Anand Desai22-Jul-08 22:17

Anand Desai

22-Jul-08 22:17

Check your POSTBACK events

Anand Desai
Developer
Atharva Infotech

Excel -COM Class factory initialization error

K.P.Kannan22-Jul-08 21:42

K.P.Kannan

22-Jul-08 21:42

We are exporting some data to excel and we have installed Excel 2007 in our Development/Staging/Production(Web Farm) environments. All the environments are running in Win 2003 Server,IIS 6. We are receiving the following error while initializing excel object in production.

Application:
System.UnauthorizedAccessException: Retrieving the COM class factory for component with CLSID {00024500-0000-0000-C000-000000000046} failed due to the following error: 80070005.at System.Runtime.Remoting.RemotingServices.AllocateUninitializedObject(RuntimeType objectType) at System.Runtime.Remoting.RemotingServices.AllocateUninitializedObject(Type objectType) at System.Runtime.Remoting.Activation.ActivationServices.CreateInstance(Type serverType) at System.Runtime.Remoting.Activation.ActivationServices.IsCurrentContextOK(Type serverType, Object[] props, Boolean bNewObj)

Event Log:
The machine-default permission settings do not grant Local Activation permission for the COM Server application with CLSID
{00024500-0000-0000-C000-000000000046}
to the user NT AUTHORITY\NETWORK SERVICE SID (S-1-5-20). This security permission can be modified using the Component Services administrative tool.

We have given the permissions for Network Service in DCOMCNFG for Excel Application. The error is coming only in production and not in any other environments.

I searched for solutions and all are pointing to giving Activation Permissions to Network Service(The application pool is running under this identity only) which has been done.

I could not figure out any other reasons that may be causing this problem.

Please help

K.P.Kannan

Spell Checking in web application

VB 8.022-Jul-08 21:40

VB 8.0

22-Jul-08 21:40

Hi ,

I am having email compose interface in web application

In that i am having Spell Check button in web application

if i click that button it has to check all the words, or spelling in web application

In that i want to use the spell checking .like in Gmail Compose
Spell Checking

What things i need . how to get the dictionary .

is there any free resources to use from google or from any site in web application

Thanks .

Re: Spell Checking in web application

eyeseetee22-Jul-08 21:54

Re: Spell Checking in web application

22-Jul-08 21:54

check these out:
http://www.codeproject.com/KB/asp/spell_check.aspx
http://www.codeproject.com/KB/aspnet/checkspelling.aspx
http://www.aspspellcheck.com/downloads.asp

VB 8.023-Jul-08 19:55

VB 8.0

23-Jul-08 19:55

Thanks ,

These links are nice but those r not fit to my web application.

Can i get the same which i see in outlook Express while composing a new mail . Can i get the same interface so that it will take care all the things .

I am new to web applications.

Regards ,

Performance : "input runat=server" or "asp:textbox"

gnjunge22-Jul-08 21:24

gnjunge

22-Jul-08 21:24

Hello,

Does anybody have a preference of using htmlcontrols over webcontrols? If I don't need all the props of asp:textbox, should I use the html control equivalent? Are there differences in performance?

(Idem the difference between for example select runat="server" and asp:dropdownlist)

Would like to hear your thoughts.

Gidon

Re: Performance : "input runat=server" or "asp:textbox"

eyeseetee22-Jul-08 21:31

Re: Performance : "input runat=server" or "asp:textbox"

22-Jul-08 21:31

I tend to use asp.net controls because in the future if I need to make adjustments to them and add features its easier to leave as asp.net controls.
To be honest I think the asp.net controls were created to go with the back end code.
If you arent using back end code with them, then it might as well use html controls

Arindam Tewary22-Jul-08 22:14

Arindam Tewary

22-Jul-08 22:14

Performancw wise Input with Ruat=server is better. Because asp:textbox webcontrol is converted into input control from server(when it is rendered by browser). This is an extra step done by server if you use asp:textbox.

But associating data(we say its databinding) with asp:textbox is much more easier than input type with runat=server for a developer. Apart from that Asp:textbox is having more properties and methods exposed to developer which makes it more useful( makes job is easier for developer ) to developer.

Thanks,
Arindam D Tewary

Re: Performance : "input runat=server" or "asp:textbox"

N a v a n e e t h23-Jul-08 0:16

Re: Performance : "input runat=server" or "asp:textbox"

23-Jul-08 0:16

Arindam Tewary wrote:
Performancw wise Input with Ruat=server is better

I don't think you will see a huge difference as both needs to processed to render HTML input. ASP.NET engine is quick enough to do this.

Arindam Tewary wrote:
asp:textbox webcontrol is converted into input control from server(when it is rendered by browser)

ASP.NET just converts the asp:textbox to equivalent HTML input control and emits the HTML to response and it is rendered by browser. Browser is not the one who is converting from asp:textbox HTML input.

Arindam Tewary wrote:
This is an extra step done by server if you use asp:textbox.

This step is happening for input element with runat=server attribute.

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

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Arindam Tewary23-Jul-08 0:39

Arindam Tewary

23-Jul-08 0:39

N a v a n e e t h wrote:
both needs to processed to render HTML

In HTML server control, actually the code written is copied back to browser.
But if you have asp web server server control, AS.NET engine emits equivalent HTML output therfore a CONVERSION happens. Yah I agree system quick enough, still you cant ignore the basic difference of HTML and asp web server controls.

It was never told that browser does that conversion. It was wriiten that server does that job.

Anywaz good post by you. I must appreciate.

Thanks,
Arindam D Tewary

Re: Performance : "input runat=server" or "asp:textbox"

N a v a n e e t h23-Jul-08 2:03