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OriginalGriff wrote: the for loop is a bit old and clunky.
That is like saying the while loop is old and clunky.
foreach is appropriate for certain situations and for is appropriate for others. Attempting to use foreach in all situations would lead to some code that would be attempting to replicate what for already does.
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Using a for loop for a simple iteration though all the elements of any list is old and clunky - foreach is much more appropriate. Since that is what the OP was trying to do, that is how I responded.
I agree that foreach is not appropriate in all cases - in some you cannot use it at all - but I was indicating that a language element already existed that did what the OP was trying to achieve.
Real men don't use instructions. They are only the manufacturers opinion on how to put the thing together.
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OriginalGriff wrote: Using a for loop for a simple iteration though all the elements of any list is old and clunky - foreach is much more appropriate. Since that is what the OP was trying to do, that is how I responded.
I didn't see a qualification limiting your comment to only what the OP was doing. Rereading your post several times I still don't see any way to read it that provides a qualification.
With the qualification I have no problem with that comment.
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Write a macro. 
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Sounds like a candidate for T4 if you're using Visual Studio.
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Nope, sorry - don't agree.
".45 ACP - because shooting twice is just silly" - JSOP, 2010
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You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
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"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997
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I have array list contains bytes , I want to check if the first byte start with 99 and end with 0d this means i have received a complete message but message length may be either 6 or 30 so if i received message start with 99 and it's terminal is 0d with message length 6 I will do operation and if length of message is 30 I will do another operation.
How I can check like this.
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You have an ArrayList of byte? ArrayList has a Count property ( from documentation: Gets the number of elements actually contained in the ArrayList.)
Whas that it?
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You really shouldn't have to ask such a simple question. When you read a 99 put it and any following bytes into the List (don't use ArrayList) and when you find a 0d, check the Count. Take the appropriate action then clear the List.
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This question has already been answered here[^].
Just say 'NO' to evaluated arguments for diadic functions! Ash
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Hello Experts,
I would like to ask some help if how can I know the number of pc connected in my network.
Any link of suggestion/comments for me to read if what will I use is kindly appreciated.
Thanks,
DAN
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Here[^] is a solution for you
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Hello,
Thanks for the nice link it was very useful.
Still confusing how to understand the code but having a guide
on what to do is a bit more easier 
Thanks,
DAN
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You may use the Comments and Discussions section below the article and add a new message to the article writer and ask what you more want to know.
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How to generate script of a database at run time in c#.
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See here[^]
The funniest thing about this particular signature is that by the time you realise it doesn't say anything it's too late to stop reading it.
My latest tip/trick
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Wrong again! - don't worry, I won't bother going back through any more of your so called answers
return 5;
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Hey there,
I'm working on an NTFS Master File Table reader as part of a project for University. I've already got a Console API working in C++ which reads the current $MFT file/table, and i've begun work on porting the code over to C# (as per my requirements), however my version of SetFilePointerEx doesn't seem to move the file buffer pointer.
My C++ code:
BOOL __stdcall SetFileBlockLocation(HANDLE address, LARGE_INTEGER position)
{
return SetFilePointerEx(address, position, NULL, FILE_BEGIN);
}
My C# code:
public bool AssignPointerPosition(Int64 position, EFileMove movement)
{
if (this.IsBufferReady == false)
return false;
if (Win32API.SetFilePointerEx(this.block, (long)position, IntPtr.Zero, movement) == false)
{
this.errorcode = Marshal.GetLastWin32Error();
this.errorpos = MFTHaltPosition.MoveFile;
return false;
}
return true;
}
Where EFileMove is set to EFileMove.FileBegin (aka. 0)
When I run another ReadFile, it continues to read out the same block of data into the buffer (the first four bytes should be FILE, but instead reads the beginning of the NTFS block).
Does anyone have an idea why it wouldn't move the pointer forward (position is a value far above 0), and is there a solution?
Thank you,
Chris
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What does your import/p-invoke look like for SetFilePointerEx? What is this.block defined as?
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My SetFilePointerEx import looks like this:
[DllImport("kernel32.dll", SetLastError = true)]
public static extern bool SetFilePointerEx(IntPtr fHandle, long lDistance, IntPtr lpNewPointer, EFileMove dwMove);
And the block attribute is an IntPtr:
private IntPtr block;
Which stores the file pointer created by CreateFile, and is used to read the data.
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Is SetFilePointerEx returning 0? If so, what is GetLastError reporting?
I would recommend using SafeFileHandle instead of IntPtr for the file handle.
I assume you are doing a verbatum translation of your C++ code to C#, so that you know the actual sequence of calls you are performing are valid.
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Yes, my EFileMove structure is inheriting uint.
When I get chance, i'll try converting the code to use SafeFileHandle.
When I run SetFilePointerEx and sending 0 as the distance to move, and setting the file movement to EFileMove.FileEnd, the resulting long value is always 0. It doesn't seem to adjust the pointer at all.
I'm wondering if I should try passing a LARGE_INTEGER structure through it instead?
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if SetFilePointerEx is returning false, then you should look at the error code.
<br />
if (!SetFilePointerEx(...)) {<br />
throw new Win32Exception(Marshal.GetLastWin32Error());<br />
}<br />
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