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Find the not-existing element in int arrays.

CodingLover24-Jun-09 0:52

24-Jun-09 0:52

Hi all,

I've two int arrays, something like this.

{41, 3, 5, 37, 59, 4}
{3, 59, 4, 5, 37}

As you can see 41 is not in the second array. I want to find that actually in a C# code. Basically I want to find the value which is exists only in one array.

Any comments?

Thanks a lot. Smile | :)

I appreciate your help all the time...
CodingLover Smile | :)

Re: Find the not-existing element in int arrays.

Calla24-Jun-09 1:00

Calla

24-Jun-09 1:00

There might be a simpler way, but try just to iterate through the two arrays with a nested for loop and se if the items in the first array exist in the second.

Re: Find the not-existing element in int arrays.

CodingLover24-Jun-09 3:28

CodingLover

24-Jun-09 3:28

Actually I've look at that, have no clue about that's the best way I can take.

I appreciate your help all the time...
CodingLover Smile | :)

Re: Find the not-existing element in int arrays.

Dust Signs24-Jun-09 1:01

Dust Signs

24-Jun-09 1:01

Enumerable.Except (since .NET 3.5)

Dust Signs

The number you dialed is imaginary. Please turn your phone by 90 degrees and try again

Re: Find the not-existing element in int arrays.

himanshu256124-Jun-09 1:12

himanshu2561

24-Jun-09 1:12

himanshu

Re: Find the not-existing element in int arrays.

CodingLover28-Jun-09 20:44

CodingLover

28-Jun-09 20:44

Thanks a lot.

Actually now my application have a slight change. Now all my elements are in a list. So I've two lists now. So how can I do this.

Thanks Smile | :)

I appreciate your help all the time...
CodingLover Smile | :)

Re: Find the not-existing element in int arrays.

Dust Signs29-Jun-09 4:53

Dust Signs

29-Jun-09 4:53

Which list are you using exactly? A generic List<t>? As it also implements IEnumerable you should be able to use the extension methods on them equally.

Dust Signs

The number you dialed is imaginary. Please turn your phone by 90 degrees and try again

Re: Find the not-existing element in int arrays.

PIEBALDconsult24-Jun-09 4:53

PIEBALDconsult

24-Jun-09 4:53

Sounds like a set operation, I'd use sets.

measure string

nryk24-Jun-09 0:23

nryk

24-Jun-09 0:23

hi how can i measure string height without using Graphics.MeasureString()?
i've tried to use GraphicsPath and AddString() then to GetBounds() but that gives me the exact height, but i need the height like MeasureString() function.
the reason i can't use Graphics is that i need to calculate something about the string height in a function that doesn't get Graphics variable. (in the function that does have the Graphics variable i'm using 300 dpi).

Re: measure string

AndrewVos24-Jun-09 0:26

AndrewVos

24-Jun-09 0:26

TextRenderer should work for this.

http://msdn.microsoft.com/en-us/library/system.windows.forms.textrenderer.measuretext.aspx[^]

www.andrewvos.com

Re: measure string

nryk24-Jun-09 0:48

nryk

24-Jun-09 0:48

i'm using 1.1 Framework, so i think i can't use it Frown | :-(

Re: measure string

Pete O'Hanlon24-Jun-09 1:05

Pete O'Hanlon

24-Jun-09 1:05

You don't need to receive a Graphics object to use one in your method. What you could do is create a 1 by 1 bitmap, and then retrieve the Graphics object from that.

using (Bitmap img = new Bitmap(1,1))
{
  float resolution = 300;
  img.SetResolution(resolution, resolution);
  using (Graphics g = Graphics.FromImage(img))
  {
    // We have a graphics object that we can use now.
  }
}

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Re: measure string

Ennis Ray Lynch, Jr.24-Jun-09 3:05

Ennis Ray Lynch, Jr.

24-Jun-09 3:05

The Graphics context dictates the way the Fonts are rendered. It is not possible to accurately measure a string without knowing where it is going. All other option require guessing in the method. If you want to guess you can look-up the font characteristics and roll your own, or as suggested earlier create a fake graphics context that does not match the device. Unfortunately, it will be buggy in some edge cases that may be hard to detect in development but the client will notice immediately. The best thing to do is to pass a reference to the Graphics context everywhere you want to draw to a device.

Need custom software developed? I do C# development and consulting all over the United States.

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"Sir I exist!"
"However," replied the universe,
"The fact has not created in me
A sense of obligation."
--Stephen Crane

Debugging

frommi24-Jun-09 0:15

frommi

24-Jun-09 0:15

Hi friends, I explain you my problem. I have my application installed on Vista 64bit, without Visual studio 2008 kit installed on the machine. Sometimes the application crash in particular situation, so windows doesn't start a debug to see the error line. Why?. Is it possible to install a free debugger on the machine without install Visual Studio 2008?
Thank you, wait some suggestions.
Bye Bye
Andrea

Re: Debugging

Manas Bhardwaj24-Jun-09 0:24

Manas Bhardwaj

24-Jun-09 0:24

You should rather log this somewhere in file, event log etc. This will give you an idea where it went wrong so that the code can be reviewed and possible problem can be understood.

Manas Bhardwaj
Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.

Balaji Pawar23-Jun-09 23:53

Balaji Pawar

23-Jun-09 23:53

I hav created a listview and added items to it. Now when i select one of those items and perform a rright click on the selected item i should get a dropdown menu as we normally get when we right click like refresh and all that. so plzzz help me out in this.....

balajipawar.8785@yahoo.com

Re: c#

Sk9323-Jun-09 23:55

Sk93

23-Jun-09 23:55

Add a ContextMenu control...
http://msdn.microsoft.com/en-us/library/aa984254(VS.71).aspx[^]

Re: c#

Balaji Pawar24-Jun-09 5:48

Balaji Pawar

24-Jun-09 5:48

first of all thanks 4 ur advise and yes ur answer was really helpful

......thanks once again

Re: c#

Sk9324-Jun-09 5:52

Sk93

24-Jun-09 5:52

pleasure $Shucks | :-\$

Re: c#

Manas Bhardwaj24-Jun-09 0:26

Manas Bhardwaj

24-Jun-09 0:26

Never ever give your email address in the public forums until and unless you want to be flooded with spams.

Manas Bhardwaj
Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.

update query in windows application with ms access as database

J.K.Sharma23-Jun-09 23:20

J.K.Sharma

23-Jun-09 23:20

Hi I have a problem in my windows application with ms access 2007 as database.
The problem is that the update query to change password is giving error.

the code i used is

string qry1 = "update log_in set password='" + txtnew.Text.Trim() + "' where userid='" + txtuser.Text + "'";
cmd = new OleDbCommand(qry1, con);
cmd.ExecuteNonQuery();
MessageBox.Show("Password changes Sucessfully");

the error is "Syntax error in UPDATE statement."

please answer. thanks in advance

J.K.Sharma

Re: update query in windows application with ms access as database

Sk9323-Jun-09 23:26

Sk93

23-Jun-09 23:26

password is a reserved field name.

Try changing your code to read:

string qry1 = "update log_in set [password]='" + txtnew.Text.Trim() + "' where userid='" + txtuser.Text + "'";

Re: update query in windows application with ms access as database

Robert_Pan24-Jun-09 0:12

Robert_Pan

24-Jun-09 0:12

oledbparameter..... Sleepy | :zzz:

Re: update query in windows application with ms access as database

J.K.Sharma24-Jun-09 21:41

J.K.Sharma

24-Jun-09 21:41

Thank you so much . It works as per you advice.

Re: crystal report problem

J.K.Sharma24-Jun-09 21:48

J.K.Sharma

24-Jun-09 21:48

when i create crystal report the database is at some location.
but when i prepare setup of that windows application and deploy it on some other system then the path of database change and the crystal report does not load the correct database.

Please help..
Thanks in advance.

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