C# Discussion Boards - CodeProject

Nafiseh Salmani3-Jul-09 22:33

3-Jul-09 22:33

I want to determine HTTP header code of a URL by C# code. How could I get that?

I use the following code :

<br />
public Dictionary<string, string> GetHTTPResponseHeaders(string Url)<br />
        {<br />
            Dictionary<string, string> HeaderList = new Dictionary<string, string>();<br />
<br />
            WebRequest WebRequestObject = HttpWebRequest.Create(Url);<br />
            WebResponse ResponseObject = WebRequestObject.GetResponse();<br />
<br />
            foreach (string HeaderKey in ResponseObject.Headers)<br />
            {<br />
                HeaderList.Add(HeaderKey, ResponseObject.Headers[HeaderKey]);<br />
                textBox1.Text += HeaderKey + ": " + ResponseObject.Headers[HeaderKey]+"      " ;<br />
            }<br />
            ResponseObject.Close();<br />
<br />
            return HeaderList;<br />
}<br />

but It does not contain of HTTP header Code!

Re: Http Header code (example 200,404,..)

Colin Angus Mackay4-Jul-09 1:08

Colin Angus Mackay

4-Jul-09 1:08

Nafiseh Salmani wrote:
WebResponse ResponseObject = WebRequestObject.GetResponse();

This should be cast to an HttpWebResponse if the Url you are passing uses HTTP or HTPS as the protocol.

HttpWebResponse responseObject = (HttpWebResponse)WebRequestObject.GetResponse();

You will then find a StatusCode property which contains the detail you want.

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Re: Http Header code (example 200,404,..)

Nafiseh Salmani4-Jul-09 1:36

Nafiseh Salmani

4-Jul-09 1:36

Thanks! But it just determine "OK" not the code!! I need the code number exactly!!

How could I get code number?!!!!

Re: Http Header code (example 200,404,..)

Henry Minute4-Jul-09 1:46

Henry Minute

4-Jul-09 1:46

Read the documentation!! here[^]

StatusCode is an enumeration, 'OK' = 200. Just write yourself a method to return a string of the numbers based on the value of StatusCode.

Henry Minute

Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”

Re: Http Header code (example 200,404,..)

Colin Angus Mackay4-Jul-09 2:18

Colin Angus Mackay

4-Jul-09 2:18

Henry Minute wrote:
Read the documentation!! here[^]

Documentation has a use? I thought it was just a jolly for technical writers to get paid to do something no one reads! Wow! Didn't I learn something today. Roll eyes | :rolleyes:

User group: Scottish Developers
Blog: Can Open... Worms? Everywhere!
Quote: Man who stand on hill with mouth open wait long time for roast duck to drop in.

Re: Http Header code (example 200,404,..)

Henry Minute4-Jul-09 3:28

Henry Minute

4-Jul-09 3:28

Of course, I don't use it myself...... Big Grin | :-D

Re: Http Header code (example 200,404,..)

Nafiseh Salmani4-Jul-09 4:17

Nafiseh Salmani

4-Jul-09 4:17

Thanks alot of both of you!! Smile | :)

I would try to read documentation carefully before asking something like this. WTF | :WTF:

Get Error Number in C#

Anubhava Dimri3-Jul-09 22:19

Anubhava Dimri

3-Jul-09 22:19

Hi All,
How can i get the error number in c#.

If you can think then I Can.

Re: Get Error Number in C#

DaveyM693-Jul-09 22:37

DaveyM69

3-Jul-09 22:37

Error number of what?

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)
Why are you using VB6? Do you hate yourself? (Christian Graus)

Re: Get Error Number in C#

Anubhava Dimri4-Jul-09 1:33

Anubhava Dimri

4-Jul-09 1:33

IN VB WE CAN CHECK ERROR NO. BY USING

ON ERROR GOTO ERR
ERR:
MSGBOX (ERR.NUMBER)

NOW HOW CAN IT POSSIBLE IN C#

If you can think then I Can.

Re: Get Error Number in C#

Colin Angus Mackay4-Jul-09 2:31

Colin Angus Mackay

4-Jul-09 2:31

STOP SHOUTING - It is rude!

User group: Scottish Developers
Blog: Can Open... Worms? Everywhere!
Quote: Man who stand on hill with mouth open wait long time for roast duck to drop in.

Re: Get Error Number in C#

Anubhava Dimri4-Jul-09 2:37

Anubhava Dimri

4-Jul-09 2:37

ok colin

If you can think then I Can.

Re: Get Error Number in C#

DaveyM694-Jul-09 5:09

DaveyM69

4-Jul-09 5:09

In C# we do this by putting the code below where the On Error Goto would be inside a try block. The Err label is replaced by catch block(s). In addition we have an optional finally block that is run after either have completed:

try
{
    // code that may throw an exception
}
catch(Exception ex)
{
   // an exception is now in ex so you can examine this to get details,
   // show detailed MessageBox etc...
}
finally
{
   // this will run regardless of whether an exception was thrown or not.
   // useful to close/dispose of objects etc...
}

More details here[^].

Re: Get Error Number in C#

Henry Minute4-Jul-09 0:00

Henry Minute

4-Jul-09 0:00

Which error do you want the number for? I've had most of them in my time, so I might be able to let you have it.

Re: Get Error Number in C#

OriginalGriff4-Jul-09 0:42

OriginalGriff

4-Jul-09 0:42

Just give him a copy (they aren't DRM after all). You might need it again - I know I will need mine! Laugh | :laugh:

No trees were harmed in the sending of this message; however, a significant number of electrons were slightly inconvenienced.

This message is made of fully recyclable Zeros and Ones

Re: Get Error Number in C#

Anubhava Dimri4-Jul-09 1:34

Anubhava Dimri

4-Jul-09 1:34

MY REPLY IS POSTED PLEASE CHECK

If you can think then I Can.

Re: Get Error Number in C#

Colin Angus Mackay4-Jul-09 2:33

Colin Angus Mackay

4-Jul-09 2:33

THERE'S NO NEED TO SHOUT - WE CAN HEAR YOU FINE. It is also rude to use all caps.

User group: Scottish Developers
Blog: Can Open... Worms? Everywhere!
Quote: Man who stand on hill with mouth open wait long time for roast duck to drop in.

Re: Get Error Number in C#

0x3c04-Jul-09 0:46

0x3c0

4-Jul-09 0:46

Have you tried looking at the GetLastError API method? I think that there's a managed wrapper around that which may help (Marshal.GetLastWin32Error I think)

Between the idea
And the reality
Between the motion
And the act
Falls the Shadow

Re: Get Error Number in C#

Anubhava Dimri4-Jul-09 1:37

Anubhava Dimri

4-Jul-09 1:37

I THINK IT IS APPLY FOR ALL PROGRAMS IN MY COMPUTER.
AM I RIGHT?

If you can think then I Can.

Re: Get Error Number in C#

Colin Angus Mackay4-Jul-09 2:34

Colin Angus Mackay

4-Jul-09 2:34

eg_Anubhava wrote:
AM I RIGHT?

I DON'T KNOW. I CAN'T THINK OVER THE SOUND OF HOW LOUD YOU ARE SHOUTING.

User group: Scottish Developers
Blog: Can Open... Worms? Everywhere!
Quote: Man who stand on hill with mouth open wait long time for roast duck to drop in.

Re: Get Error Number in C#

harold aptroot4-Jul-09 2:50

harold aptroot

4-Jul-09 2:50

Even a quick google would have shown that to be untrue. If you google it, the first thing you see is:
GetLastError Function (Windows)
Retrieves the calling thread's last-error code value.

Re: Get Error Number in C#

Anubhava Dimri5-Jul-09 18:11

Anubhava Dimri

5-Jul-09 18:11

Sorry But Please Explain It to finding Err.Number.

If you can think then I Can.

Re: Get Error Number in C#

Narendra Reddy Vajrala21-Jul-09 0:23

Narendra Reddy Vajrala

21-Jul-09 0:23

Hey Anubhava...
did you got the solution to find error number in c#.net???

i have the same requirement i tried so much but i did not found solution Frown | :(

please pass solution if you got

tnx in advance Smile | :)

Hardware Cofiguration and Software details of systems Through Domain Login details

raushan_93-Jul-09 19:52

raushan_9

3-Jul-09 19:52

Hello,
I am developing a application, in which, i have a domain server like ITES.COM, approx 100 systems connected to this server. i have entered login details & path of Domain by using DIRECTORYENTRY. then i have got all local computer name. when user click on any computer name then display hardware configuration according to computer name.
i used WMI for fetch Hardware Configuration, but its through exception "Access Denied". when i paas login details of individual machine.. then its work perfectly.
So, how i authenticate Domain Login Details on local machine for get hardware Configuration.

ADO.NET RowFilter

Isaac Gordon3-Jul-09 19:09

Isaac Gordon

3-Jul-09 19:09

Hi Experts
i using Visual Studio 2005.
I Fill a grid using Dataview in C#.NET winForms.
I Filter it with Dataview RowFilter then the result Come After Row Filter
Show in Different Grid now i want to Filter The Data from Second Grid not from first grid.
I mean to say that suppose e.g I Have Grid Result first Time
ID Name
1 Hello How R
2 i am fine
3 this is my book
4 this is C# Book
5 this is C# Example
6 Book is black

now i apply Row Filter on the 'this is'
dvs.RowFilter =Name like '%this is %'

now Result Come
ID Name
3 this is my book
4 this is C# Book
5 this is C# Example

Now i am again apply Row Filter not on the first case but apply on the second case.

now i apply Row Filter on the 'this is'
dvs.RowFilter =Name like '%Book%'
now Result Come this
I want this result set
ID Name
3 this is my book
4 this is C# Book
but result come
ID Name
3 this is my book
4 this is C# Book
6 Book is black

then how to fix this problem

this search within search in n time untill zero result is come....
Thank u
Dinesh

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