Re: I have this error (Specified cast is not valid.) [modified] - C# Discussion Boards

King Julien26-Mar-09 19:22

26-Mar-09 19:22

So you finally got that....!!! Hail Hurray!!!

If you want to show the status dynamically, then you need to go for threading.....

Dedicate a thread specifically for updates and things will work...

Have a Happy Coding.....

Re: ListView in C# [modified]

mrithula829-Mar-09 0:51

mrithula8

29-Mar-09 0:51

Hi I tried with the following code. It displays "Started" as a subitem for the 2nd item in listview control

lvsi = new ListViewItem.ListViewSubItem();
               lvsi.Text = "Started..";
               //lvi.SubItems.Add(lvsi);
               listView1.Items[1].SubItems.Insert(1, lvsi);

If i use

listView1.Items[0].SubItems.Insert(0, lvsi);

it displys "started " as an item and not a subitem like

Server status Last accessed
started
Server1.exe
...
....

Can you give me some suggestions

Xmen Real 24-Mar-09 20:35

Xmen Real

24-Mar-09 20:35

I use this code to get all files from a folder or drive

public static string[] GetFilesPaths(string directory)
{
    List<string> filesPaths = new List<string>();
    GetDirectories(directory, filesPaths);
    return filesPaths.ToArray();
}
static void GetDirectories(string dir, List<string> filesPaths)
{
    filesPaths.AddRange(Directory.GetFiles(dir));
    string[] subdirectoryEntries = Directory.GetDirectories(dir);
    foreach (string subdirectory in subdirectoryEntries)
        GetDirectories(subdirectory, filesPaths);
}</string></string></string>

you can get string[] and then you can add 'em in ListView...ListView is slow BTW, use DataGridView instead.

TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87֦ʻ6ϣN8ȤBcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKQUFK[M`UKs*$GwU#QDXBER@CBN%
R0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-iTV.C\y<pjxsg-b$f4ia>

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modified on Wednesday, March 25, 2009 3:13 AM

0x3c024-Mar-09 21:08

0x3c0

24-Mar-09 21:08

Just a point of curiosity. Why do you pass the List by reference? I thought that a collection can be added to without passing by reference

I have this error (Specified cast is not valid.)

Xmen Real 24-Mar-09 21:12

Xmen Real

24-Mar-09 21:12

Computafreak wrote:
I thought that a collection can be added to without passing by reference

yes, you're right...thanks

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128 bit encrypted signature, crack if you can

malkan Rahim Nazari24-Mar-09 19:45

malkan Rahim Nazari

24-Mar-09 19:45

Hi every body
I'm Malkan
How are you?
I have small problem.
This is my code:
1- int? g;
2- g = vamTableAdapter1.SelectShomvam(textBox1.Text, textBox2.Text);
3- decimal? h = vamTableAdapter1.SelectMablkol(System.Convert.ToInt32(g));
The input of third line is Int and the output of it is Decimal?
this line(third)worked well already.But after change my database......
They are my errors
"Specified cast is not valid"
"when casting from number the value must be a number less than infinity"
But I know taht my code are true.
Plese help me
Thanks alot

Re: I have this error (Specified cast is not valid.)

Christian Graus24-Mar-09 20:26

Christian Graus

24-Mar-09 20:26

Convert.ToInt32 is going to return a value that equates to infinity if g is not a number.

Your code is really crappy, please tell me you're a first year student ?

Christian Graus

Driven to the arms of OSX by Vista.

Re: I have this error (Specified cast is not valid.) [modified]

malkan Rahim Nazari24-Mar-09 22:26

malkan Rahim Nazari

24-Mar-09 22:26

Hi Thanks
G is a number(Int?)
I don't a first year student,but I like C#
I want to learn Programing with C#.please help me.I like codeproject.I studied computer.
Thanks alot

modified on Wednesday, March 25, 2009 5:36 AM

Re: I have this error (Specified cast is not valid.)

Luc Pattyn25-Mar-09 3:21

Luc Pattyn

25-Mar-09 3:21

Christian Graus wrote:
Convert.ToInt32 is going to return a value that equates to infinity if g is not a number

MSDN:
Convert.ToInt32
Returns ... zero if value is null.
FormatException value does not consist of an optional sign followed by a sequence of digits (zero through nine).
OverflowException: value represents a number less than MinValue or greater than MaxValue

Luc Pattyn [Forum Guidelines] [My Articles]

- before you ask a question here, search CodeProject, then Google
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get
- use the code block button (PRE tags) to preserve formatting when showing multi-line code snippets

Problem with connecting windows service through sockets

lnmca24-Mar-09 18:54

lnmca

24-Mar-09 18:54

Hi All,

The problem that we are facing is that we are unable to connect the windows service through the socket running on computer A from the windows application running on computer B. The following are the steps that we have followed.

At Window Service Side running on Computer A:-

· We have created a window service and under OnStart event we have initialize the object of TCP listener through port 8001.

· Start the TCP listener.

· Made a thread for WaitingForClient and start this thread so that it always lies in listen mode for accept the socket from Computer B.

· In the method WaitingForClient we have accepted the socket and start another thread for read this socket.

At Window Application running on Computer B:-

Made a socket that has AddressFamily InterNetwork, SocketType is stream and ProtocolType is TCP.
Made the object of IPEndPoint by initialize it through IP address of Computer A and Port 8001.

When we connecting this socket to the Computer A through IPEndPoint, it does not connect and throws the exception of connection timeout.

Plese Help............

Thanks and Regards,
Lalit Narayan

Re: Problem with connecting windows service through sockets

Nicholas Butler25-Mar-09 0:00

Nicholas Butler

25-Mar-09 0:00

Does it work if you run the client and service on the same machine? If so, it's probably a firewall blocking your port.

Nick

----------------------------------
Be excellent to each other Smile | :)

Re: Problem with connecting windows service through sockets

lnmca25-Mar-09 2:56

lnmca

25-Mar-09 2:56

Hi Nick,

Thank u very much,u have solved my problem in one line,i have just turn off my firewall and my program started working.

Regards,
Lalit Narayan

Error with nhunspell

sagun shrestha24-Mar-09 18:48

sagun shrestha

24-Mar-09 18:48

hi all
i have been trying to use nhunspell but a error always comes ;
error is given below:

Could not load file or assembly 'NHunspell, Version=0.5.2.42123, Culture=neutral, PublicKeyToken=null' or one of its dependencies. This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem. (Exception from HRESULT: 0x800736B1)

I was trying to implement the nhunspell for nepali language but since the error i have not been able to work ahead.

I would be very happy if anyone could help me out.

Thanking you in advance.

With regards
Sagun shrestha

Re: Error with nhunspell

Ashfield24-Mar-09 22:15

Ashfield

24-Mar-09 22:15

Your best bet is to contact the vendor to determine what configuration is needed.

Bob
Ashfield Consultants Ltd
Proud to be a 2009 Code Project MVP

Help me!!with C# Please

hoale200824-Mar-09 18:43

hoale2008

24-Mar-09 18:43

I want to do a topic on the management staff! Include add, delete employee, the employee by the employee by day with the number of each person, all information is entered in the file!

programming language C + + or C #? please help me! many thanks

Re: Help me!!with C# Please

King Julien24-Mar-09 19:49

Re: Help me!!with C# Please

24-Mar-09 19:49

What's your requirement???

"topic on the management staff!"

what do you think that it could mean?????

Please post a question which is more meaningful.....

Have a Happy Coding.....

Christian Graus24-Mar-09 20:24

Christian Graus

24-Mar-09 20:24

hoale2008 wrote:
programming language C + + or C #?

Well, that depends. Does that mean you know both languages equally well, and yet felt the need to ask this, or does it mean you're clueless and whichever answer I give, that's the forum you'll fill with inane questions that would be easily answered by google, or common knowledge to anyone who has ever used the language in question ?

Christian Graus

Driven to the arms of OSX by Vista.

Re: Help me!!with C# Please

0x3c024-Mar-09 21:10

0x3c0

24-Mar-09 21:10

Use a database. If you want ease of use, then stick with C# - you haven't known true pain until you've grappled with pointer arithmetic in C++

ControlPaint.DrawReversibleFrame

yesu prakash24-Mar-09 18:29

yesu prakash

24-Mar-09 18:29

Hi,
How to give thickness to rectangle which is drawn using 'ControlPaint.DrawReversibleFrame',
I create an
Rectangle rc = new Rectangle();
but it have no thickness property.

Thankyou
YPKI

King Julien24-Mar-09 19:59

24-Mar-09 19:59

you can use the FrameStyle enumeration to switch from dashed to thick....

ControlPaint.DrawReversibleFrame(theRectangle, Me.BackColor, _FrameStyle.Thick)

Have a Happy Coding.....

yesu prakash24-Mar-09 20:13

yesu prakash

24-Mar-09 20:13

i need to give thickness value, like 5,6... FrameStyle.Thick have only one value, its size is fixed

King Julien24-Mar-09 20:51

24-Mar-09 20:51

I think its not possible with drawreversibleframe.

Rather you can check this
http://www.codeproject.com/KB/GDI-plus/rubberrectangle.aspx[^]

Have a Happy Coding.....