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gajesh wrote: I always get this message whenever i restart the application.
How to ensure that Main Application and all child applcation should be terminated properly before doing Restart?
Where are you checking if another instance already exists? Surely you are doing it in the Main() method, before you show the form? I just created a small app with a restart button that does not allow multiple instances and it works perfectly fine.
Cheers,
Vikram.
The hands that help are holier than the lips that pray.
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Yes.
I check for this just in the beginning of Main(..)
My application UI is having lots controls placed in it also having some other child thread which also needs to be closed.
But the restart doesn't wait till all these terminates properly.
How do i make sure the Restart should wait till all the processes are closed properly?
Regards
Gajesh
modified on Tuesday, April 15, 2008 2:11 AM
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gajesh wrote: But the restart doesn't wait till all these terminates properly.
That is somewhat hard to believe, although it's possible. What do you do with the other threads when you restart the app?
Have you tried setting a breakpoint where you do the multiple-instance check? How many process instances does it say there are?
Cheers,
Vikram.
The hands that help are holier than the lips that pray.
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Thanks Vikram.
It's true about Restart()
Anyway, i set a flag in my application's main form and in Main.cs i check this flag. If it is true then i restart the application. Like this in Main.cs:
Application.Run(gObjfrmMDIMain);
//If application needs to be restarted
if(MyMainFormObj.IsApplicationRestarted)
{
MyMainFormObj.IsApplicationRestarted= false;
Application.Restart();
}
Just before Application.Restart(), i want to make sure that MyMainFormObj has been disposed properly or i want to wait till it is getting done.
The problem is the Application.Restart() starts the application in without debug mode so no use of breakpoint over there. I tried displaying the messageBox and it says about the instance already running.
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gajesh wrote: The problem is the Application.Restart() starts the application in without debug mode so no use of breakpoint over there.
Whoops, I didn't think about that. You will not be able to use a flag across different instances of the app, so no luck there.
Have you tried using a Mutex? That's what I use to avoid multiple instances - maybe you can have the mutex wait for a while before you decide not to proceed?
I'm at home now; I don't have the code sample. I could send it tomorrow if you want....
Cheers,
Vikram.
The hands that help are holier than the lips that pray.
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Restart first starts a new instance of the application and then exits the existing instance.
If it would exit first, no one would be left to start the new instance.
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Thanks Daniel,
But it doesn't always give the similar result. Some time it terminates properly but someting the instance still exist.
Most of the time if you are already in restarted application and you restart it again then it occurs more frequently.
Regards
Gajesh
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I have encountered a typical problem while splitting a large file(.doc) in C# and then sending them via email. After splitting the files when I try to send them in email as attachment always the first part is not received at the destination ie if a file is split into 5 parts(part0,part1...part4) then the part0 is never received but is successfully sent.
I have even tried this with the file splitter program available in codeproject.
Any help would be appreciated?
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One more update on this is when I use normal C program to split the files, all of them are received at the destination.
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mailstorao wrote: Any help would be appreciated?
How do you expect people to help you if they can't see what you are doing? Showing the relevant code would go a long way here.
Cheers,
Vikram.
The hands that help are holier than the lips that pray.
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Sorry for that. But I downloaded the code from codeproject itself. anyway the cs file is pasted below...
public class FileSplitter
{
private static readonly long MAXSEGSIZE = 600 * 1024 * 1024;
private static readonly long MINSEGSIZE = 4096;
private static readonly int MAXBUFSIZE = 10240;
private static readonly int MINBUFSIZE = 4096;
private int m_blockSize = 4096; //arbitrary
private long m_segmentSize = DefaultSize; //in megabytes
//not used ... yet.
private string m_outputPath = string.Empty;
public static readonly long DefaultSize = 2 * 1024 * 1024;
public event ProgressNotifyHandler ProgressNotify;
///
/// Simply splits a file name in the current directory using
/// the original filename as a prefix appending numeric
/// in sequence starting with 0.
///
/// <param name="fileName" />file name to split up
/// <returns>number of segments created
public int SplitFile( string fileName )
{
FileStream fsIn = new FileStream(fileName, FileMode.Open, FileAccess.Read);
string basePath = System.IO.Path.GetDirectoryName(fileName);
int fileSize = (int) fsIn.Length;
int segments = (int) (fileSize / m_segmentSize);
int remainder = (int) (fileSize % m_segmentSize);
if (remainder > 0) segments++;
byte[] buffer = new byte[m_blockSize];
int bytesRead = 0;
try
{
for (int i = 0; i < segments; i++)
{
FileStream fsOut = new FileStream(fileName + "." + i, FileMode.Create,FileAccess.Write);
int blocks = (int) (m_segmentSize / m_blockSize);
for ( int j = 0; j < blocks ; j++)
{
bytesRead = fsIn.Read(buffer, 0, m_blockSize);
fsOut.Write(buffer, 0, bytesRead);
}
fsOut.Close();
OnProgessNotify ( Utilities.GetPercentComplete( i+1 , segments ) );
}
return (int) segments;
}
finally
{
OnProgessNotify( 100 );
if ( fsIn != null ) fsIn.Close();
}
}
///
/// The internal buffer size used - defaults to 4K
///
public int BufferSize
{
get { return m_blockSize;}
set
{
if ( value >= MINBUFSIZE && value <= MAXBUFSIZE)
m_blockSize = value;
if ( value > MAXBUFSIZE )
m_blockSize = MAXBUFSIZE;
if ( value < MINBUFSIZE )
m_blockSize = MINBUFSIZE;
}
}
///
/// Size of output files
///
public long SegmentSize
{
get { return m_segmentSize;}
set
{
if ( value >= MINSEGSIZE && value <= MAXSEGSIZE )
m_segmentSize = value;
if ( value > MAXSEGSIZE )
m_segmentSize = MAXSEGSIZE;
if ( value < MINSEGSIZE )
m_segmentSize = MINSEGSIZE;
}
}
///
/// Output Path where split file will go
/// This is not used
///
private string OutputPath
{
get { return m_outputPath; }
set { m_outputPath = value; }
}
protected virtual void OnProgessNotify( int i)
{
if ( ProgressNotify != null )
{
try
{
ProgressNotify( i );
}
catch //catch & sqaush the exceptions...
{}
}
}
public void TestMethod ()
{
OnProgessNotify( 10 );
}
///
/// Test Method...
///
[STAThread]
static int Main(string[] args)
{
if ( args.Length < 1 || args[0] == null || args[0] == "")
{
Console.WriteLine("Invalid command line;\nNeed filename");
return 1;
}
//int segments = fileSplitter.SplitFile(@"C:\Data\My Videos\Monsters.WMV");
FileSplitter fileSplitter = new FileSplitter();
int segments = fileSplitter.SplitFile ( args[0] );
return 0;
}
}
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Also, this is happening only for .doc files.
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hello,
im trying to write in process memory(of a game)at a specified address, but its not working, neither any error nor working, im new to API.
here is the code im using to write a int(4 bytes) value at 0xB7CE50.
IntPtr m_hProcess = IntPtr.Zero;
m_hProcess = APIDecalaration.OpenProcess(APIDecalaration.PROCESS_ALL_ACCESS, 1, ((UInt32)MYProcesses[0].Id));
APIDecalaration.WriteProcessMemory(m_hProcess, (IntPtr)0xB7CE50, 1000, 4, 0);
int isClosed = APIDecalaration.CloseHandle(m_hProcess);
if (isClosed == 0)
throw (new Exception("CloseHandle failed"));
APIDecalaration class :
public const int PROCESS_ALL_ACCESS = 0x1F0FFF;
[DllImport("kernel32", ExactSpelling = true, CharSet = CharSet.Ansi, SetLastError = true)]
public static extern IntPtr OpenProcess(UInt32 dwDesiredAccess, int bInheritHandle, UInt32 dwProcessId);
[DllImport("kernel32", ExactSpelling = true, CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int WriteProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, int lpBuffer, long nSize, long lpNumberOfBytesWritten);
[DllImport("kernel32", ExactSpelling = true, CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int CloseHandle(IntPtr hObject);
where i did mistake ???
edited :
i want to write 1000 in that address, but there is no effect
TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87??6?N8?BcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-i?TV.C\y<p?jxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can
modified on Monday, April 14, 2008 10:31 PM
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I have a C# Form textBox that I would like to display a global counter that keeps track of different events. I would like to lock down the textBox so no input can be entered. Does anyone have an example of how to do this or a example of a better way of displaying this counter.
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Hi
can can, You create a global property for the counter. and create a custom event for every evetn fiare in the any of the ur form trigger ur custom event and update the textbox by the ur counter value.
Basically u create a text box property readonly=true.
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A TextBox has a ReadOnly property which you have to set to false. You could use a Label, but a TextBox is better because it still allows the user to copy-paste the contents.
Cheers,
Vikram.
The hands that help are holier than the lips that pray.
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Hi all,
i need set the position for ascii char in richtextbox.
Here is my coding that will show the ascii char in richtextbox.
string hex = "040";
string hex1 = "025";
string hex2 = "023";
string hex3 = "025";
int code = Convert.ToInt32(hex,16);
int code1 = Convert.ToInt32(hex1,16);
int code2 = Convert.ToInt32(hex2,16);
int code3 = Convert.ToInt32(hex3, 16);
richTextBox1.Text = Encoding.Default.GetString(new byte[] {(byte)code,(byte)code1,(byte)code2,(byte)code3});
Now i need arrange all the ascii char in correct position.I hd tried in many ways,but still got errors.pls help me.
Thank you.
KAMALES
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try in this way :
byte mychar = 40;
richTextBox1.Text = ((char)mychar).ToString();
hope it will help
TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87??6?N8?BcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-i?TV.C\y<p?jxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can
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well I need to display the customerID, firstName, and lastName from a table called customers into a listbox. The idea is that I want the user to view what customers are in the database and then pick one to update or delete. Then it will take you to a diffrent form where you can update or delete the customer.
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sounds fun, what have you tried ?
Can't you just set the datasource of the listbox, or do you need to add columns in code ?
Christian Graus
Please read this if you don't understand the answer I've given you
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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I don't think I need to add columns in code. I just need a listbox to display an ID number, first name and last name from a table in my database. We have connection to the database. I just need to know how to code the listbox to show these columns of my table.
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Does it have a datasource property ?
Christian Graus
Please read this if you don't understand the answer I've given you
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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I do not have a datasource. All I know is that I have a connection to the database and i know the select statement i need to put into the code.
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Then when you call the SQL, you'll have a dataset. Which is a datasource.
So is an array, as it happens.
Christian Graus
Please read this if you don't understand the answer I've given you
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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