Re: Trying to Shut Down application - C# Discussion Boards

Re: Help in Regular expressions

shankbond4-Jul-10 1:10

shankbond

4-Jul-10 1:10

OriginalGriff wrote:
particularly with a trigger word such as "html" which appears in every web page...

Yes You are absolutly right. I did that with the help of a javascript.

Thanks
Shankbond

Re: Help in Regular expressions

OriginalGriff1-Jul-10 22:04

OriginalGriff

1-Jul-10 22:04

Just to add to what I said, go and get a copy of Expresso - it examines and generates Regular expressions.
Expresso[^] It's free, and really can help create and understand complicated expressions. You can also feed it a sample file that you want to examine and it will show you what the Regex will capture.
I wish I'd written it!

Did you know:
That by counting the rings on a tree trunk, you can tell how many other trees it has slept with.

Re: Help in Regular expressions

shankbond4-Jul-10 1:08

shankbond

4-Jul-10 1:08

Thanks but I already have one Smile | :)

,

my query is solved now I got the solution by using

(?<=\\d+(\\.\\d*)?|\\b)html(?=\\d+(\\.\\d*)?|\\b)

but I am having a new query now?
(?:.....) is also a non capturing group so I can theoretically use it in place of look ahead and look behind but that does not work here?

any solutions?

Thanks
Shankbond

Re: Help in Regular expressions

shankbond5-Jul-10 21:31

shankbond

5-Jul-10 21:31

can someone really explain that; I am curious about it.

Thanks
Shankbond

Etienne_1231-Jul-10 6:29

Etienne_123

1-Jul-10 6:29

First of all, I know this question is only partially relevant to C#, so sorry for posting it here.

I am trying to implement Facebook single sign on using a desktop application. The one thing I figured out so far is to retrieve an access token.
How I retrieve the access token:

browserFacebook.Navigate(@"https://graph.facebook.com/oauth/authorize?client_id="+ FacebookApplicationID + "&redirect_uri=http://www.facebook.com/connect/login_success.html&type=user_agent&display=popup");

This redirects the user to page where he/she must first authorize the application. Once authorized, I redirect the user to "http://www.facebook.com/connect/login_success.html" as specified in the above address. I then intercept this URL to retrieve the access token like so:

string someString = browserFacebook.Url.ToString();

This returns something like the following:

"http://www.facebook.com/connect/login_success.html#access_token=ACCESS TOKEN.expires_in=0"

I can then easily use this access token with the Graph API to access an users facebook details as in the following code:

Facebook.FacebookGraphAPI g = new FacebookGraphAPI("ACCESS_TOKEN");
var fbUser = g.GetObject("me", null);

Can I also use this token somehow to simply log a user in to the site? My goal is not really to develop a complete new facebook application as my application is simply a prototype.

Trying to Shut Down application

PDTUM1-Jul-10 5:19

PDTUM

1-Jul-10 5:19

Good Morning,

I feel like Dr Frankenstein; I created this monster and now I cannot shut it off! Case in point. My application begins with a Splash screen that retrieves information (Connections Strings, Permissions) and sets a switch in a remote database that defines the users status as active. I hide this page when I advance to the next page (The Main Page). Now, I try to shut it down. I call a method from the Form_Closing event so that I can reset the users status as inactive and I use Application.Exit() as the closing command. BUT....my back trace shows that the script re runs the Splash page and turns the switch in the remote database back to active again before it closes. NOW.... when the user goes to log back on again, the system denies him access with the response that he is already active. In essence, the function of the code is to discourage a hacked application from being able to open if the original application is already active. It's a just in case scenario. SO...what to do? Thanks, Pat

<br />
private void frmMain_FormClosing(object sender, FormClosingEventArgs e)<br />
        {<br />
            if (alreadyClosing)<br />
                {<br />
                    return;<br />
                }<br />
<br />
            //If there are results posted<br />
            if (richTextResult.Text != string.Empty)<br />
            {<br />
                DialogResult answer;<br />
                string message1 = "Are you sure you want to exit the program? " +<br />
                    "\n\nThe information in your Result box will be lost!";<br />
                answer = MessageBox.Show(message1, "Exit?", MessageBoxButtons.YesNo, MessageBoxIcon.Question);<br />
                if (answer == DialogResult.No)<br />
                {<br />
                    e.Cancel = true;                    <br />
                    return;<br />
                }<br />
                else<br />
                {<br />
                    ResetDatabaseActivity();<br />
                    alreadyClosing = true;<br />
                    Application.Exit();<br />
                }<br />
            }<br />

Re: Trying to Shut Down application

I Believe In GOD1-Jul-10 5:37

I Believe In GOD

1-Jul-10 5:37

private void frmMain_FormClosing(object sender, FormClosingEventArgs e)
{
	if (richTextResult.Text != string.Empty)
	{
		DialogResult answer;
		string message1 = "Are you sure you want to exit the program? " +
							"\n\nThe information in your Result box will be lost!";
		answer = MessageBox.Show(message1, "Exit?", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
		if (answer == DialogResult.No)
		{
			e.Cancel = true;
		}
		else 
		{
			ResetDatabaseActivity();
			Application.Exit();
		}
	}
}

I know nothing , I know nothing ...

Re: Trying to Shut Down application

PDTUM1-Jul-10 6:06

PDTUM

1-Jul-10 6:06

Hello Stark,

Thank you for your reply. No, unfortunately, the alreadyClosing bool is required. When the application closes, if it is not in place, it trys to run this code twice. This switch is just a stop measure. It's not a big issue, but it takes 2 clicks to close the question box. That is the only reason that it is there. However, I just realized that Application.Exit() call is not required at all, since it is already staring to close before the call. Sometimes (Pat) cannot see the forest through the trees. I removed it and the problem has been solved. Thank you for your thoughts and input. I appreciate it. Best Regards, Pat

Cant use System.Windows

ayandelhi1-Jul-10 4:46

ayandelhi

1-Jul-10 4:46

Hi!!

i'm back to disturb u again...
This time i wanna know y cant i use System.windows in a console program..
wheneva i type this it shows error.. that it doesn't exists.. but when i choose window application. i uses it...

help me out..i need to use it...

Re: Cant use System.Windows

Pete O'Hanlon1-Jul-10 4:50

Pete O'Hanlon

1-Jul-10 4:50

You need to add it as a reference. By default, it doesn't get added to console applications. Why would it? They aren't responsible for drawing windows after all.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Re: Cant use System.Windows

ayandelhi1-Jul-10 4:53

ayandelhi

1-Jul-10 4:53

how???

i m working on keyloggers... so need to write a console program for it...
thats y...
i'm using System.Windows.Forms.Keys... but cant use it...
as mentioned...

Re: Cant use System.Windows

Paladin20001-Jul-10 5:30

Paladin2000

1-Jul-10 5:30

In your solution explorer, right-click References (looks like a folder), Add Reference. Then find the one you need.

I will advise you that using keyloggers maliciously (such as to spy on someone, steal passwords etc) is ill-advised, and probably illegal.

Re: Cant use System.Windows

Richard MacCutchan1-Jul-10 4:55

Richard MacCutchan

1-Jul-10 4:55

A console application does not include Windows by default. You need to add it to the References section of your project in order to use it. However, if you are developing an application that needs Windows why would you start with a console app?

It's time for a new signature.

Re: Cant use System.Windows

ayandelhi1-Jul-10 4:58

ayandelhi

1-Jul-10 4:58

sir, thats m asking.. how shud i... actually i'm new to VS2008 and C#.. thats y stuck here...

Re: Cant use System.Windows [modified]

Richard MacCutchan1-Jul-10 5:38

Richard MacCutchan

1-Jul-10 5:38

Well, I wonder how you expect to write a working application if you do not understand the basics.

However

Use your mouse to right-click on the References item in Solution Explorer.
Select the .NET tab in the popup dialog.
Scroll down to System.Windows.Forms, and select it.
Click on OK.
Add the using statement to your source module.

[edit]Did I say something wrong here? Got a 1 vote for it anyway[/edit]

It's time for a new signature.

modified on Thursday, July 1, 2010 1:57 PM

Re: Cant use System.Windows

Paladin20001-Jul-10 8:40

Paladin2000

1-Jul-10 8:40

I have noticed that some people down-vote things they don't want to hear, regardless of veracity or technical merit.

I wouldn't let it get you down.

Re: Cant use System.Windows

Richard MacCutchan1-Jul-10 9:51

Richard MacCutchan

1-Jul-10 9:51

Timothy CIAN wrote:
I wouldn't let it get you down.

Oh, it doesn't; I make too many mistakes to worry about criticism. I would just prefer to have an explanation of what I did wrong.

It's time for a new signature.

Re: Cant use System.Windows

ayandelhi1-Jul-10 5:22

ayandelhi

1-Jul-10 5:22

i found an answer...

right click on the solution and then add reference of System.Windows.Forms
this solves my problem..

fixed scope

Chesnokov Yuriy1-Jul-10 0:46

Chesnokov Yuriy

1-Jul-10 0:46

How to extend fixed scope?
I've got array of byte* native pointers and I need to assign them managed byte[] arrays. But that can be done in a fixed {} block statement.

Чесноков

Re: fixed scope

Luc Pattyn1-Jul-10 0:55

Luc Pattyn

1-Jul-10 0:55

You can get a permanent fix through the GCHandle class. It is used in here[^] for passing arrays.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] Nil Volentibus Arduum

Please use < PRE > tags for code snippets, it preserves indentation, and improves readability.

Re: fixed scope

Chesnokov Yuriy1-Jul-10 7:56

Chesnokov Yuriy

1-Jul-10 7:56

that is what I was looking for, thanks

Чесноков

Re: fixed scope

Luc Pattyn1-Jul-10 9:28

Luc Pattyn

1-Jul-10 9:28

you're welcome.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] Nil Volentibus Arduum

Please use < PRE > tags for code snippets, it preserves indentation, and improves readability.

How to use HashSet

raju_shiva1-Jul-10 0:14

raju_shiva

1-Jul-10 0:14

Hi Experts,
I am new to C#,I am trying to use

HashSet stringSet = new HashSet { "abc", "aa" };

Bu i am getting error as "A new expression requires () or [] after type"

Whethier i should include any header file.

Thanks
Raj

Re: How to use HashSet

Gonzalo Cao1-Jul-10 0:19

Gonzalo Cao

1-Jul-10 0:19

try this:

HashSet<string> stringSet = new HashSet<string> { "abc", "aa" } ;

Re: How to use HashSet

Luc Pattyn1-Jul-10 0:53

Luc Pattyn

1-Jul-10 0:53

HashSet<string> stringSet = new HashSet<string>() { "abc", "aa" };
foreach (string s in stringSet) log(s);

works well on .NET 3.5 or 4.0

FWIW: the constructor parentheses are optional here!

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] Nil Volentibus Arduum

Please use < PRE > tags for code snippets, it preserves indentation, and improves readability.

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