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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using System.Data.Odbc;
using System.Data.Common;
using System.Data;
using System.IO;
namespace sample27
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button2_Click(object sender, EventArgs e)
{
MessageBox.Show("values get inserted");
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
textBox1.Text = "";
textBox2.Text = "";
}
}
class v
{
public static void main(string[] args)
{
string name = null;
string pwd = null;
int i=0;
string connstr = "/*connection string*/"
SqlConnection conn = new SqlConnection(connstr);
conn.Open();
StreamReader sr = new StreamReader(@"e:\v.txt");
string query = "insert into samplereg(username,password) values(@username,@password)";
name= sr.ReadLine();
while (name != null)
{
i++;
SqlCommand cmd = new SqlCommand(query, conn);
cmd.Parameters.Add("@username", name);//error
cmd.Parameters.Add("@password", pwd );
cmd.ExecuteNonQuery();
name = sr.ReadLine();
conn.Close();
}
}
}
}
error:Add(string parametername,object value) has been depricated.use Addwithvalue(String parametername,object value)
modified on Wednesday, January 27, 2010 6:54 AM
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Not exactly sure what you are trying to do, (but it does sound like "PLZZ SEND CODEZ").
Please clarify, and tell us what you have tried.
All those who believe in psycho kinesis, raise my hand.
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vidhulibra wrote: if we wanna store user inputs(consider name and password in login form)into the table,wat v should code
If you are reallying being asked to store passwords, you need to be sufficiently experienced to understand the security implications. Anyone that experienced shouldn't be asking a question like this.
vidhulibra wrote: wat v should code?(c#)
It in the FAQs, people on these message boards aren't here to provide you with code. Let us know what you have tried, what went wrong and the people will help.
vidhulibra wrote: Waiting for reply.........
Now you have it
CCC solved so far: 2 (including a Hard One!)
37!?!! - Randall, Clerks
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hi all.
<br />
private void SendMessage(string str)<br />
{<br />
byte[] message = Encoding.Unicode.GetBytes(str);<br />
Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);<br />
IPAddress ip = IPAddress.Parse("224.0.0.1");<br />
try<br />
{<br />
s.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(ip));<br />
s.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastTimeToLive, 5);<br />
}<br />
catch (Exception e)<br />
{<br />
this.Text = e.Message;<br />
}<br />
IPEndPoint ipep = new IPEndPoint(ip, 7758);<br />
s.Connect(ipep);<br />
s.Send(message, message.Length, SocketFlags.None);<br />
s.Close();<br />
<br />
}<br />
<br />
private void RecMessage()<br />
{<br />
Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);<br />
IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 7758);<br />
s.Bind(ipep);<br />
IPAddress ip = IPAddress.Parse("224.0.0.1");<br />
s.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(ip, IPAddress.Any));<br />
while (true)<br />
{<br />
byte[] b = new byte[1024];<br />
s.Receive(b);<br />
string str = System.Text.Encoding.ASCII.GetString(b, 0, b.Length);<br />
this.Text = str;<br />
}<br />
s.Close();<br />
}<br />
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Firstly, always use the "code block" widget to p[reserve your formatting - it makes it all more readable, rather than "inline code", and check via the "Preview" button.
Place a breakpoint at the line "this.Text = e.Message", and examine the exception - it should tell you what the problem is. ex.ToString() will also show you more information than ex.Message.
If that doesn't sort it, we need more information.
All those who believe in psycho kinesis, raise my hand.
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Thank you!
i used "e.toString()" and then
the Message is
"
System.Net.Sockets.SocketException: Provides an invalid parameter
at System.Net.Sockets.Socket.setMulticastOption(SocketOptionName optionName, MulticastOption MR)
at System.Net.Sockets.Socket.SetSocketOption(SocketOptionLevel optionLevel, SocketOptionName optionName, Object optionValue)
at WindowsApplication1.Form1.SendMessage(String str) 位置 C:\Documents and Settings\Administrator\桌面\MulitCase\WindowsApplication1\Form1.cs:行号 32
"
Sorry I'm from China .so English is not very well.
I hope you Can Unstand me
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Your English is a lot better than my Chinese, trust me!
The third line in your error message
at System.Net.Sockets.Socket.SetSocketOption(SocketOptionLevel optionLevel, SocketOptionName optionName, Object optionValue) indicates that the problem is with one of the two lines:
s.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(ip));
s.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastTimeToLive, 5); which makes sense, since they are the only lines in the try block.
Put a breakpoint on teh first one, then run the program to until the breakpoint occurs.
Single step through, until the exception happens, and you will know which line is causing the problem.
I would guess it is either the "new MulticastOption(ip)" or the "5" on the next line that is causing the problem, but we need to know which.
All those who believe in psycho kinesis, raise my hand.
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Hello,
I want to print report(crystal report) from dot matrix printer(for exp oki microline 5520). I can print, but it is very slowly and very noisy. I want to print for text format. What can i do?
I think ,i use visual studio in c#. i can write code for print configuration.
But, I do not know how to do, so i do not know codes. Can u help me?
Thanks.
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koncuk wrote: but it is very slowly and very noisy
They always have been and always will be.
koncuk wrote: I think ,i use visual studio in c#. i can write code for print configuration.
Whatever you are trying to acheive, the printer will still be slow and noisy. Thats because of the way they work.
Bob
Ashfield Consultants Ltd
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To add to what Ashfield says, dot matrix printers have a set of eight or so not-very-little hammers with physically hit the paper through an inky ribbon. As a result, they are:
1) Slow - the hammers need to be physically pushed and pulled into place.
2) Noisy - the hammers have to hit fairly hard to make a mark.
Where the heck did you get a working DM printer? Not to mention spares such as ribbons! 
All those who believe in psycho kinesis, raise my hand.
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No, you don't know. i get dot matrix printer for accounting departmant. Dot matrix printer noisy writes that 's right. But i use other program. this program use dot matrix printer, it is not noisy and slowly. I researched,it is possible to found by write code. But , i dont know this codes.
Thanks..
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Thanks, but, not possible with c #? Maybe c# codes.
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But possible to what?
Fast? Don't use Crystal Report as it prints as "image"
Noisy? It's hardware related it's not controlled by software, but it can be controlled by letting the printer impacting the paper less.
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Output your report as text file and then print them.
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I researched. I found the following link
http://support.microsoft.com/?kbid=322091
http://msdn.microsoft.com/en-us/library/dd162959%28VS.85%29.aspx
I think, it will work.
Thanks.
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i think this answer may be help you.For dotmatrix printer u can write this way.create textfile and print what ever you want(content).
Code:
Step1:
using system.io;
streamwriter sw=new streamwrite("c:\text.txt");
sw.writeline("content");
sw.close();
step2:
* create another one file(DOS) with extension(.bat)
* here u should configure your printing setting(file path,printer portname)
syntax
type+(space)+filepath+">"+printerportname(or)printername
Code:
using system.io;
streamwriter sw=new streamwrite("c:\PrinterSet.bat");
sw.writeline("type c:\text.txt >com1");
sw.close();
step3
call printerSet.bat file,then print your content in printer
System.Diagnostics.Process proc = new System.Diagnostics.Process();
proc.StartInfo.FileName="c:\PrinterSet.bat";
proc.Start();
Regards
S.Murugesan,Software Engineer,Gratiff Solutions & Systems
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There is a Job board here at CP. Use that.
50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong...!!
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When I execute and exe using CreateProcessAsUser API it will shows the dialog with below error.
************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
at SVCManager.clsSQLConn..ctor()
at SVCManager.frmSVCManager.frmSVCManager_Load(Object sender, EventArgs e)
at System.Windows.Forms.Form.OnLoad(EventArgs e)
at System.Windows.Forms.Form.OnCreateControl()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ContainerControl.WndProc(Message& m)
at System.Windows.Forms.Form.WmShowWindow(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
Can any one guide me?
Thanking You,
Sunil G.
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For what you say, "No". There is not enough information. Put a breakpoint at the top of the try block, and single step through until the exception occurs.
What it is saying is that you are (probably) handling an object in your SVCManager constructor which is null. Without more info, it is not possible to help.
All those who believe in psycho kinesis, raise my hand.
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<code>
namespace ExecuteAnExeUsingCurrentLoggedOnUser
{
class Program
{
[StructLayout(LayoutKind.Sequential)]
public struct STARTUPINFO
{
public Int32 cb;
public string lpReserved;
public string lpDesktop;
public string lpTitle;
public Int32 dwX;
public Int32 dwY;
public Int32 dwXSize;
public Int32 dwXCountChars;
public Int32 dwYCountChars;
public Int32 dwFillAttribute;
public Int32 dwFlags;
public Int16 wShowWindow;
public Int16 cbReserved2;
public IntPtr lpReserved2;
public IntPtr hStdInput;
public IntPtr hStdOutput;
public IntPtr hStdError;
}
[StructLayout(LayoutKind.Sequential)]
public struct PROCESS_INFORMATION
{
public IntPtr hProcess;
public IntPtr hThread;
public Int32 dwProcessID;
public Int32 dwThreadID;
}
[StructLayout(LayoutKind.Sequential)]
public struct SECURITY_ATTRIBUTES
{
public Int32 Length;
public IntPtr lpSecurityDescriptor;
public bool bInheritHandle;
}
public enum SECURITY_IMPERSONATION_LEVEL
{
SecurityAnonymous,
SecurityIdentification,
SecurityImpersonation,
SecurityDelegation
}
public enum TOKEN_TYPE
{
TokenPrimary = 1,
TokenImpersonation
}
public const int GENERIC_ALL_ACCESS = 0x10000000;
public const int TOKEN_DUPLICATE = 2;
public const int TOKEN_QUERY = 0X00000008;
public const int TOKEN_IMPERSONATE = 0X00000004;
[
System.Runtime.InteropServices.DllImport("kernel32.dll",
EntryPoint = "CloseHandle", SetLastError = true,
CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)
]
public static extern bool CloseHandle(IntPtr handle);
[
DllImport("advapi32.dll",
EntryPoint = "CreateProcessAsUser", SetLastError = true,
CharSet = CharSet.Ansi, CallingConvention = CallingConvention.StdCall)
]
public static extern bool
CreateProcessAsUser(IntPtr hToken, string lpApplicationName, string lpCommandLine,
ref SECURITY_ATTRIBUTES lpProcessAttributes, ref SECURITY_ATTRIBUTES lpThreadAttributes,
bool bInheritHandle, Int32 dwCreationFlags, IntPtr lpEnvrionment,
string lpCurrentDirectory, ref STARTUPINFO lpStartupInfo,
ref PROCESS_INFORMATION lpProcessInformation);
[
DllImport("advapi32.dll",
EntryPoint = "DuplicateTokenEx")
]
public static extern bool
DuplicateTokenEx(IntPtr hExistingToken, Int32 dwDesiredAccess,
ref SECURITY_ATTRIBUTES lpThreadAttributes,
Int32 ImpersonationLevel, Int32 dwTokenType,
ref IntPtr phNewToken);
[
DllImport("advapi32", SetLastError = true),
SuppressUnmanagedCodeSecurityAttribute
]
public static extern int
OpenProcessToken(
System.IntPtr ProcessHandle,
int DesiredAccess,
ref IntPtr TokenHandle
);
[DllImport("advapi32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool OpenProcessToken(IntPtr ProcessHandle,
UInt32 DesiredAccess, out IntPtr TokenHandle);
static void Main(string[] args)
{
CreateProcessAsUser1("c:\\ServiceManager.exe", "");
}
private static void CreateProcessAsUser1(string strApplication, string strArg)
{
IntPtr hToken = IntPtr.Zero;
Process[] proc = Process.GetProcessesByName("explorer");
if (OpenProcessToken(proc[0].Handle,
TOKEN_QUERY | TOKEN_IMPERSONATE | TOKEN_DUPLICATE,
ref hToken) != 0)
{
}
IntPtr hDupedToken = IntPtr.Zero;
PROCESS_INFORMATION pi = new PROCESS_INFORMATION();
try
{
SECURITY_ATTRIBUTES sa = new SECURITY_ATTRIBUTES();
sa.Length = Marshal.SizeOf(sa);
bool result = DuplicateTokenEx(
hToken,
GENERIC_ALL_ACCESS,
ref sa,
(int)SECURITY_IMPERSONATION_LEVEL.SecurityIdentification,
(int)TOKEN_TYPE.TokenPrimary,
ref hDupedToken
);
if (!result)
{
throw new ApplicationException("DuplicateTokenEx failed");
}
STARTUPINFO si = new STARTUPINFO();
si.cb = Marshal.SizeOf(si);
si.lpDesktop = String.Empty;
result = CreateProcessAsUser(
hDupedToken,
strApplication, strArg,
ref sa, ref sa,
false, 0, IntPtr.Zero,
@"C:\", ref si, ref pi
);
if (!result)
{
int error = Marshal.GetLastWin32Error();
string message = String.Format("CreateProcessAsUser Error: {0}", error);
throw new ApplicationException(message);
}
}
catch (Exception ex)
{
MessageBox.Show("Inner Catch " + ex.Message.ToString());
}
finally
{
if (pi.hProcess != IntPtr.Zero)
CloseHandle(pi.hProcess);
if (pi.hThread != IntPtr.Zero)
CloseHandle(pi.hThread);
if (hDupedToken != IntPtr.Zero)
CloseHandle(hDupedToken);
}
}
}
}</code>
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Firstly, when you paste code, there are two things to remember:
1) Use the "code block" widget - it preserves the formatting so the code is more readable:
finally
{
if (pi.hProcess != IntPtr.Zero)
CloseHandle(pi.hProcess);
if (pi.hThread != IntPtr.Zero)
CloseHandle(pi.hThread);
if (hDupedToken != IntPtr.Zero)
CloseHandle(hDupedToken);
}
becomes:
finally
{
if (pi.hProcess != IntPtr.Zero)
CloseHandle(pi.hProcess);
if (pi.hThread != IntPtr.Zero)
CloseHandle(pi.hThread);
if (hDupedToken != IntPtr.Zero)
CloseHandle(hDupedToken);
}And use the Preview button to check it looks ok. Unformatted code it harder to read so people will just gloss over it.
2) Only post the relevant code fragment. A large, several page fragment such as yours is mostly irrelevant and gets in the way.
OK, the problem:
Where is the exception occurring? Without actually running the code (which I am not about to do without a lot more detailed examination) no-one can tell. Which line is the exception being raised on?
All those who believe in psycho kinesis, raise my hand.
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First of all sorry for what i have posted.
Exception is not occuring in my application. I have debugged my application, it never goes to catch block. But when below line of code get executed then only it gives an error (JIT dialog box). The function runs successfully. The function returns a non-zero value.
result = CreateProcessAsUser(hDupedToken,
strApplication, strArg,
ref sa, ref sa,
false, 0, IntPtr.Zero,
@"C:\", ref si, ref pi
);
Thanking You,
Sunil G.
modified on Tuesday, January 19, 2010 6:24 AM
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Sunil G wrote: First of all sorry for what i have posted.
No problem!
Sunil G wrote: Exception is not occuring in my application. I have debugged my application, it never goes to catch block. But when below line of code get executed then only it gives an error (JIT dialog box). The function runs successfully. The function returns a non-zero value.
Right, I see! the problem is not in the app you are debugging - it is in "ServiceManager.exe" - you need to try running that outside your app with no parameters and see what happens - it is failing for some reason. It may be that it needs better permissions, it may need a DLL it can't find, it could be anything!
All those who believe in psycho kinesis, raise my hand.
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