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Hi Folks,
I have been a CodeProject Subscriber for a while, and have never needed forum help, But Here goes:
I have been an AMX Netlinx and Crestron Programmer for about 10 years, so I have a vast knowledge of the Proprietery Access, Netlinx, and Simpl+ Programming languages that are very much like C++. I have recently started using another program called StarDraw that the programming language is By-the-Book C#. I am pretty good at assimilating what I know to the C# language, But I am having trouble with some of the syntax and Structure...i.e., I can make controllable actions, but now I am trying to parse text coming back from devices, and wanting to put that text into buffers. I think I need a really good primer or tutorial on C#. Can anyone recommend and good book or a class I can take online to help me along?
Much Thanx,
RedNexHex
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Hope this Link will help you. And there are lot of books are also mentioned there,
Online Tutorials[^]
Regards,
Satips.
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hi guys
how can i call a Executable (eg.CMD.EXE) in a way that before the executable starts , Vista will bring up the UAC and ask the user to Cancel or continue or enter password based on their account rights.
i know to run a process, Process.Start() is used, but how can i Demand Administrative rights for that process? thanx
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ya runas was what i needed . thanx
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My blocking tcp server looks something like
while (true)
{
recv = ns.Read(message, insertPtr, 1024);
if (recv == 0)
break;
insertPtr += recv;
}
As it is now, the client sends the data(of various sizes) and the client closing the socket when it is done, thus causing ns.Read to return zero.
My question: How can the client get ns.Read to return zero without
closing the socket? I'd like to have the server send some data back to the client without having to open a new socket.
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How to store elemts from generic collection classes to an has table? am not sure about the question, correct me if am wrong.
The problem is, how could i able to know all the elements in TList<employees>?how to access all the elements from that Generic collection class?
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If you are not sure about the question how can anyone be sure about what to answer 
are you familiar with the 'foreach' keyword?
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Hello everyone,
I have a TEXT file which is holding some data. Can someone be kind enough to tell me how I can empty the text file from all the stored data?
Thank you very much and have a great day.
Khoramdin
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Hi, if no program has the file open you can create (=open for writing) a file with
the same name and close it without writing anything to it, hence replacing the
original with an empty file. You could use the StreamWriter class (with append=false)
and Dispose() the object immediately (i.e. without calling Write/WriteLine).
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You can opent the file for write and use the truncate mode, to make it empty (I think this is default behaviour)
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i want to open Wold file by click button on my application
what the command will help me to do that ???
Palestine
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Hi, all files that, when double clicked in Windows Explorer, cause their
default application to open them, can be opened with that same program programatically
by using Process.Start(document_filename);
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Hello,
I need to send selected items from the ListBox to the database field "keyrings" of datatype varbinary(128),
thelogic i used is to get the selected items from the Listbox and set the byte[] to 1 for the sected item,
//Keyrings
byte[] aGroup = new byte[1024];
string hexString;
for (int index = 0; index < SecurityGroups.Items.Count; index++)
{
if (SecurityGroups.Items[index].Selected)
aGroup[index] = 1;
}
I converted those byte[] to hexstring
hexString = ToString(aGroup);
and then send the value to the database
xmlelem = xmldoc.CreateElement("", "ATTRIBUTE", "");
atttribute = xmldoc.CreateAttribute("NAME");
atttribute.Value = "KeyRings";
xmlelem.SetAttributeNode(atttribute);
xmltext = xmldoc.CreateTextNode(hexString);
xmlelem.AppendChild(xmltext);
xmlelem4.AppendChild(xmlelem);
public static string ToString(byte[] bytes)
{
string hexString = "";
try
{
StringBuilder temp = new StringBuilder();
for (int i = 0; i < bytes.Length; i++)
{
temp.Append(bytes[i].ToString("X2"));
}
hexString = temp.ToString();
}
catch (Exception)
{
}
return hexString;
}
My aGroup array shows first 3 items selected as {1,1,1,0.0.0.0...,
I am having a problem in conversion from bytes to hexstring here...with the first 3 item selected in the listbox, i should get
0700000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
instead i am getting 01010100000000000000....
Is there any problem with my conversion, Please suggest.
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Hi,
you did a binary string (only 0 and 1 can be present), not a hex string.
And it was too long.
You may try something along these lines:
int count=SecurityGroups.Items.Count;
byte[] aGroup = new byte[(count+7)/8];
for (int index = 0; index < count; index++) {
if (SecurityGroups.Items[index].Selected)
aGroup[index/8] |= 1<<(index%8);
}
if all items were selected, this would or 1 to aGroup[0], then 2 to aGroup[0], then 4,
etc.; then 1 to aGroup[1] and so on, as you probably want.
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Thanks Luc,
but when i run this piece of code.,
i am getting this error
Error 1 Cannot implicitly convert type 'int' to 'byte'. An explicit conversion exists (are you missing a cast?)
Is there a way to overcome?
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Sure, this should fix it:
aGroup[index/8] |= (byte)(1<<(index%8));
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Again i am runing into problems.,
I am having difficulties in filling the byte array from the selected items in the listbox,
byte[] aGroup = new byte[1024];
string strKeyRingResXML = "";
string strSecurity = "<security>" + key + "";
string strKeyRingReqXML = "<iacdevrequest>" + strSecurity +
"<requestoperations><dump><options><onlinemode><object id="\""" +
="" stridhi="" +="" "."="" stridlo="" "\"="">";
strKeyRingResXML = ACDev.ProcessRequest(strKeyRingReqXML);
xmlDoc.LoadXml(strKeyRingResXML);
string strAttributesPath = "IACDEVRESPONSE/RESPONSEOPERATIONS/DUMP/OBJECT/ATTRIBUTE[@NAME='KeyRings']";
XmlNode keyringNode = xmlDoc.SelectSingleNode(strAttributesPath);
string keyring = keyringNode.InnerText;
aGroup = GetBytes(keyring);
aGroup contains 100 groups
Here comes the trouble,
I have a list box which filters for the unassignable groups(50-100) for this particular server but my database contains 1000 groups so that the user can see the other 50 or even 100 groups in someother sever.
I need to make changes to the byte array for only those items(from the 50 say i select 5 groups and deselect 2 groups),
for (int index = 0; index < count; index++)
{
if (SecurityGroups.Items[index].Selected)
I need to get the value set for that particular index in the byte array
i tried doing a
aGroup[SecurityGroups.Items[index].Value] = 1;
else
aGroup[SecurityGroups.Items[index].Value] = 0;
but this does not work
}
Can someone please suggest how to go about?
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Hello All,
I have a pdf document that I need to dynamically fill out per peron. It's just a simple 100 entry form that I want to beable to populate and save to pdf from my app. I've done a little searching around and I've seen some various tools and libraries for doing this kind of stuff. I was curious if anyone had any suggestions for a library that I could include in my app that makes it easy to populate existing pdfs with information.
Thanks for the suggestions in advance,
Ryan
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I did a brief search of CP articles and didn't see anything...
Is it possible to get the handle to a differet process/program running? I want to try to make a program that changes programs' opacity, and I thought I'd start by trying to use the two lines:
Form f = Form.FromHandle([some app's handle]);
f.Opacity = 0.5;
I know it looks too easy to work right, and I know it sounds weird, but I want to try it anyway.
-Daniel
Typing too fast fro my owngood
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In your help files look up "Process". You can get a list of running processes that way. And if you already know the name of the process you can also get a list of only those processes with the specified name. From there you can get the process handle and so on.
Phil
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Awesome, thanks!
-Daniel
Typing too fast fro my owngood
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how to code a administrator login page using C#.net and ASP.net 1.1
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