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James T. Johnson wrote:
First was that you should use Asynch delegates where possible
I just have a thought... if I create a delegate and more than one user have this delegate installed in their class instances... since I´m working with a singleton object, will all the users receive the delegate notification ?
Mauricio Ritter - Brazil
Sonorking now: 100.13560 Trank
The alcohol is one of the greatest enemys of man, but a man who flee from his enemys is a coward.
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Upon further investigation it looks like you don't *need* to have a delegate after-all.
Something like this (psuedo-code)
private delegate void DoWorkDelegate(WorkArgs e);
public void DoWork(WorkArgs e)
{
DoWorkDelegate dwd = new DoWorkDelegate(DoWorkReal);
IAsyncResult ar = dwd.BeginInvoke(e
null, null);
ar.AsyncWaitHandle.WaitOne();
if( ar.IsCompleted )
{
wdw.EndInvoke(ar);
}
}
private void DoWorkReal(WorkArgs e)
{
} Uncompiled code, but so much for my psuedo-code
HTH,
James
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Hi!
I need to use SMTP server to send mail ...
I am trying to use program written by Agus Kurniawan "Sending mail via SMTP.." posted on this site... Code looks to be just fine .. but I am receiving error exception :
TcpClient SmtpServ = new TcpClient(ServSMTP.Text,25); string Data;
byte[] szData;
try
{
// initialization
NetworkStream NetStrm = SmtpServ.GetStream();
StreamReader RdStrm= new StreamReader(SmtpServ.GetStream());
LogList.Items.Add(RdStrm.ReadLine());
On the last line of listed code it bombs :
Value cannot be Null
Parameter name: item
Any suggestions what am i doing wrong?
SMTP server that i am trying to access: mail.mycompany.com
Please help
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Hi David,
is it possible that something is wrong with "LogList.Items"?
did you try this?
string tempResult = RdStrm.ReadLine();
Sebastian
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David37 wrote:
LogList.Items.Add(RdStrm.ReadLine());
The problem is that streams return null when the end is reached.
What you need to do is put the value of RdStrm.ReadLine() in a temporary value, then only add the value if it isn't null.
James
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Thanks a lot guys...
But ... James, how come i have null all the time ...
Then, if I am commenting those lines out ...I am getting next error :
"Unable to write data to the transport connection" ... so when i am tracing I am getting that even net stream gets null ... No stream ... like something is definitely wrong ... or i don't see something..
Any suggestions?
Maybe my problem is SMTP Server itself :
TcpClient SmtpServ = new TcpClient(ServSMTP.Text,25); ????
Code :
NetworkStream NetStrm = SmtpServ.GetStream();
StreamReader RdStrm= new StreamReader(SmtpServ.GetStream());
tempResult = RdStrm.ReadLine();
if (tempResult != null)
{
LogList.Items.Add(tempResult);
}
// say hello to server and send response into log report
Data = "HELLO server " + CRLF;
szData = System.Text.Encoding.ASCII.GetBytes(Data.ToCharArray());
NetStrm.Write(szData,0,szData.Length);
//LogList.Items.Add(RdStrm.ReadLine());
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Hello all.
I don't know C#,(and english too!), I'm starting with .net.
I'd like to know if in C# is possible do these 2 things:
Read who(user or groups) have access permission to a specific file or folder
and how(read,write,execute).
Second, is possible access other usefull information stored in indexing server about a file like the Author,Comments,Version,Company ecc. ecc.
I have searched a class to do this in .NET Framework without success.
I don't need the solution but at least a little help how to start.
Thanks, thanks in advance!!!
Sergio Bertini
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serberwww wrote:
Read who(user or groups) have access permission to a specific file or folder
and how(read,write,execute).
Second, is possible access other usefull information stored in indexing server about a file like the Author,Comments,Version,Company ecc. ecc.
I think for this purpose you have to use API.
For getting file attribute you can use FileAttributes class.
Mazy
"The more I search, the more my need
For you,
The more I bless, the more I bleed
For you."The Outlaw Torn-Metallica
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API? with c# and .NET is possible?
mmm, with FileAttributes I can access all these properties:
Archive = 0x00000020,
Compressed = 0x00000800,
Device = 0x00000040,
Directory = 0x00000010,
Encrypted = 0x00004000,
Hidden = 0x00000002,
Normal = 0x00000080,
NotContentIndexed = 0x00002000,
Offline = 0x00001000,
ReadOnly = 0x00000001,
ReparsePoint = 0x00000400,
SparseFile = 0x00000200,
System = 0x00000004,
Temporary = 0x00000100,
I'd like extract other usefull info in the file that
are also indexed by the index server.
How?
Sergio Bertini
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serberwww wrote:
API? with c# and .NET is possible?
OF course,but not very easy and I don't like it. For an example check this:
DriveComboBox
Mazy
"The more I search, the more my need
For you,
The more I bless, the more I bleed
For you."The Outlaw Torn-Metallica
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If you are talking about an a computer on a network using Active Directory, then the System.EnterpriseServices namespace of classes might help you.
Knowing next to nothing about the Active Directory model; thats all I can offer.
HTH,
James
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No, I want to read them on a local computer.
Or, How can I know if a User/Group have
access to a file or folder?
Ciao
Sergio Bertini
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Is it possible to run C# apps on windows 98? When I try it complains about not being able to find the MSCOREE dll, but I cant install the SDK to get it there, can I?
Thanks
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Anonymous,
I have executed C# applications on Win98 with the runtime installed. Did you download the runtime or install it from the MSDN?
Rich
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You need to atleast install the .NET resdistributable. You can't install SDK to development but you can run .NET apps
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All,
For a while, I have searched for information creating and using "grab handles." At this point, the only thing I have found is some weak information on the MSDN on DrawGrabHandle. Does anyone know of a good resource for this?
Thanks In Advance,
Rich
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I got the following code:
using System;
namespace AbelSoft.LudoGame
{
///
///
///
public class Piece : System.Drawing.Image
{
public Piece()
{
}
}
}
and this is the error i got:
C:\Documents and Settings\Franck-Alain\My Documents\Visual Studio Projects\LudoGame\Piece.cs(10): 'System.Drawing.Image.Image()' is inaccessible due to its protection level
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franck_alain wrote:
'System.Drawing.Image.Image()' is inaccessible due to its protection level
This looks like it is a sealed class, hence you would not be able to derive your own class from it.
If you need a graphics object, you can override the OnPaint method.
Nick Parker
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Why is it that when I right click on a tree node and my context menu pops up, the item that is returned by the treeView1.SelectedNode property is not the item that was right-clicked on, but whatever tree node happend to be selected before the right click?
i.e.
Folders
_________
|FolderA| <-- Currently selected tree node
---------
FolderB
FolderC <-- Right click here
treeView1.SelectedNode returns FolderA, not FolderC, even thought the selected node highlighting box temporarily moved to FolderC.
Scratching my head...
Thanks,
Rick
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Thats just the way the TreeView works. Crappy answer, but if you look at the behavior in Windows Explorer it is the same.
I believe the justification is that selecting the node is so you can tell which node was right-clicked on. Right clicking should not select an item; you are merely requesting a menu to popup.
James
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I have to disagree, at least w/respect to how Windows Explorer works. If I left click Folder "A" in explorer to select it, then right click on folder "B" and select "properties" I get a property page for folder "B", not folder "A".
This is the behaviour on Windows 2000.
If I were programming with pure Win32, I would just do a hit-test on the item under the mouse cursor, but I can't find an analog in C#.NET.
Thanks,
Rick
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rhoward wrote:
If I left click Folder "A" in explorer to select it, then right click on folder "B" and select "properties" I get a property page for folder "B", not folder "A".
Correct, but when you close the property page the folder "B" *isn't* selected, folder "A" is. Sorry I didn't make that clear in my posting.
James
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Sorry for the misunderstanding. You are definitely correct about "A" still being selected.
The point I was making is that Explorer displays properties for "B", not "A", which is what I was trying to achieve.
Thanks,
Rick
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As James said, that is by design. The way to work around the design is like so:
treeView1.SelectedNode = treeView1.GetNodeAt(e.X, e.Y);
Call that before you pop-up the context menu
--
David Wengier
Sonork ID: 100.14177 - Ch00k
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Many thanks, David.
I was able to use GetNodeAt() in the MouseUp event for the tree to reset the selected node to the proper item.
Thanks again,
Rick
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