Client calling server side

dpkbahuguna · #1 (**permalink**) July 22nd, 2009, 05:57 AM

hello Friend,

I am writing this code to call server side function from the client script but when the compiler comiing to the line which is wirtten in Red Forecolor, compiler not reading it...I have to create a txt file inside the MyMethod function how can i do this ?

Please Help here.

[System.Web.Services.WebMethod]
public static string MyMethod(string Name)
{
_Default D = new _Default();
D.My(Name);
return Name + ", ajx call string";
}
void My(string FileName)
{
string MyPath = Server.MapPath(Server.MapPath("~/App_Data/"));
FileInfo F1 = new FileInfo(MyPath + FileName + ".txt");
F1.Create();
}

cheers!!

Imar · #2 (**permalink**) July 22nd, 2009, 07:21 AM

Hi there

Why are you calling MapPath twice? You only need it once...

And why are you creating a new _Default page instance? The whole idea behind static methods is that you can call them without an instance. I'd make My static as well (and rename it to something more logical......)

Cheers,

Imar

dpkbahuguna · #3 (**permalink**) July 22nd, 2009, 07:36 AM

that was my silly mistake i did not take glance on it

....that was by mistake ....and as u asked I am making _Default class object becos without that I am not able to get that method inside the Static MyMethod() method...but Now it is running fine...
Is there any other way too to call that method without making any instance of My() function method.

one thing more friend cant i use "Server" class inside the Static Function ...?

Thanks cheers :)

Imar · #4 (**permalink**) July 22nd, 2009, 11:59 AM

Quote:

Is there any other way too to call that method without making any instance of My() function method

Yes, make My static as well.

You can use HttpContext.Current to get at the Server class....

Cheers,

Imar

dpkbahuguna · #5 (**permalink**) July 23rd, 2009, 01:09 AM

Thanks for ur reply Imar,

I am confused to take static...as the static variable which always gets one for all the clients..I mean to say suppose I have one static variable in my site suppose it is
static int a = 0;

and Two clients opened my page 1st client puts value "10" to it..and at the just after 2nd client puts "20" so that value overwrites the other client value too. so now value will be 20 for all the clients. Is it write ?

if yes then is it not risky to use static function or variable in websites until u dont have any particular requirement.

thanks!!

Imar · #6 (**permalink**) July 23rd, 2009, 03:42 AM

Hi there,

Yes, statics are used and shared throughout the application. However, when you write static methods that don't rely on instance state you're OK. In the case of HttpContext.Current you get access to a *current* instance which only applies to the current request. This means whatever you use there is request specific (stuff like Session, QueryString etc are all available)...

Imar

anujrathi · #7 (**permalink**) July 27th, 2009, 07:17 AM

dhfhfdhfshfkls
fdsfsfsdfs
fsdfdafs

Quote:

Originally Posted by Imar

Yes, make My static as well.

You can use HttpContext.Current to get at the Server class....

Cheers,

Imar

Imar · #8 (**permalink**) July 27th, 2009, 08:01 AM

Quote:

Posted by anujrathi:

dhfhfdhfshfkls
fdsfsfsdfs
fsdfdafs

Please don't post useless messages like this. You're only wasting other people's resources and time....

Imar

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