Re: digit roundoff - C# Discussion Boards

Re: Change the packet IP (source or destination) with Pcap.net

falukky30-Mar-12 5:03

30-Mar-12 5:03

i have try something that i think is correct but in the line sendBuffer.Enqueue(newPacket) error received: Failed enqueueing to SendQueue

// Allocate a send buffer
using (PacketSendBuffer sendBuffer = new PacketSendBuffer((uint)capLength))
{
    // Fill the buffer with the packets from the file
    int numPackets = 0;
    Packet packet;
    while (inputCommunicator.ReceivePacket(out packet) == PacketCommunicatorReceiveResult.Ok)
    {
        //sendBuffer.Enqueue(packet);
        IpV4Layer ipLayer = (IpV4Layer)packet.Ethernet.IpV4.ExtractLayer();
        ipLayer.Destination = new IpV4Address("11.12.13.14");
        EthernetLayer ethernet = (EthernetLayer)packet.Ethernet.ExtractLayer();
        PayloadLayer payload = (PayloadLayer)packet.Ethernet.Payload.ExtractLayer();
        Packet newPacket = PacketBuilder.Build(DateTime.Now, ethernet, ipLayer, ipLayer, payload);
        sendBuffer.Enqueue(newPacket);
        ++numPackets;
    }

    outputCommunicator.Transmit(sendBuffer, isSync); //Transmit the queue
}

Re: Change the packet IP (source or destination) with Pcap.net

Richard Andrew x6430-Mar-12 5:08

Richard Andrew x64

30-Mar-12 5:08

Have you tried the PCap site? Don't they have a support forum?

The difficult we do right away...
...the impossible takes slightly longer.

Re: Change the packet IP (source or destination) with Pcap.net

falukky30-Mar-12 5:22

falukky

30-Mar-12 5:22

yes they have but the forum not so effective (lack of users)

digit roundoff

Member 823360130-Mar-12 0:46

Member 8233601

30-Mar-12 0:46

i have a float type of variable i.e float t1=200.36 and t2=300.62. now i want to roundoff these two variables to their nearest degit.

I want to show the information like this:
t1=200.36 roundoff=-0.36 total=200
t2=300.62 roundoff=+0.38 total=301

Re: digit roundoff

V.30-Mar-12 1:05

30-Mar-12 1:05

Look here:
Floor[^]
Ceiling[^]
Round[^]

Then you can take the difference of the original with the rounded value.
Hope this helps.

Re: digit roundoff

JF201530-Mar-12 1:28

JF2015

30-Mar-12 1:28

See this code to get the idea:

double t1 = 200.36;
double t2 = 300.62;
int t11 = (int)Math.Round(t1, 0);
int t21 = (int)Math.Round(t2, 0);
MessageBox.Show("t1=" + t1.ToString() + " roundoff=" + (t11 - t1).ToString("0.00") + " total=" + Math.Round(t1, 0).ToString());
MessageBox.Show("t2=" + t2.ToString() + " roundoff=" + (t21 - t2).ToString("0.00") + " total=" + Math.Round(t2, 0).ToString());

Re: digit roundoff

ProEnggSoft30-Mar-12 3:36

ProEnggSoft

30-Mar-12 3:36

I want to add the following

What is required when the number is half i.e. 200.5. Whether 200 or 201?
By default Math.Round follows
MidpointRounding.ToEven enumeration value.

double number = 200.5;
Console.WriteLine (Math.Round(number,0));
Console.WriteLine (Math.Round(number,0, MidpointRounding.AwayFromZero));
double number2 = 201.5;
Console.WriteLine (Math.Round(number2,0));
Console.WriteLine (Math.Round(number2,0, MidpointRounding.AwayFromZero));
//The output from the above code will be
//200
//201
//202
//202

So, if the next higher number is required always, when the value is half way, then
MidpointRounding.AwayFromZero is to be used.

modified 30-Mar-12 10:15am.

Re: digit roundoff

KUNWAR99930-Mar-12 7:17

KUNWAR999

30-Mar-12 7:17

Try this code.. :

double g = [any no];//should be of double
double L = Math.Floor(g);
if (g-L<0.5)
{
k = (int)(L);
}
else
{
k = (int)(L + 1);
}

now k have ur nearest integer.. Smile | :)

modifyable html control

Ramkithepower30-Mar-12 0:16

Ramkithepower

30-Mar-12 0:16

Hi All,

I am building a windows tool for which I require a text area control where i can format the text such as color, size etc. but the formatted text should be readable as HTML in the codebehind.

Is there any such tool?

Jack Sparrow
--------------------------------------
Defeat is not the worst of failures. Not to have tried is the true failure.

Re: modifyable html control

Eddy Vluggen30-Mar-12 8:02

Eddy Vluggen

30-Mar-12 8:02

Ramkithepower wrote:
Is there any such tool?

There should be some HTML-editor controls here on CodeProject Smile | :)

Bastard Programmer from Hell Suspicious | :suss:

Check for empty DateTimeInput in c#

nhanlaptrinh29-Mar-12 20:01

nhanlaptrinh

29-Mar-12 20:01

I have a control DateTimeInput, when I run up, then assign the current date by default, but when his days in DateTimeInput clrear then how do you know to enter the date again? I checked the way DateTimeInput.Text == "" or DateTimeInput.Value.ToString () == "" but it does not understand. Thanks to all who know you helped with.

Re: Check for empty DateTimeInput in c#

kiran605329-Mar-12 20:10

kiran6053

29-Mar-12 20:10

i can give two ways

1--->u can use directly system date time

2---->if u use any control for date and time see the database table variable ...if it is given as date then check the properties of u r control with code....

I hope it will help u????????///

Re: Check for empty DateTimeInput in c#

OriginalGriff29-Mar-12 22:39

OriginalGriff

29-Mar-12 22:39

What kind of control is it?

Ideological Purity is no substitute for being able to stick your thumb down a pipe to stop the water

Re: Check for empty DateTimeInput in c#

nhanlaptrinh30-Mar-12 1:25

nhanlaptrinh

30-Mar-12 1:25

datetimeinput of dotnetbar.

multithreading control and management

nasser_ali29-Mar-12 11:06

nasser_ali

29-Mar-12 11:06

every one please help me
i can n't write program to control and management multithreading
and transfer variables between threads

Re: multithreading control and management

Ravi Bhavnani29-Mar-12 11:11

Ravi Bhavnani

29-Mar-12 11:11

Do you have a specific question or problem? That would assist us in trying to help you.

/ravi

My new year resolution: 2048 x 1536
Home | Articles | My .NET bits | Freeware
ravib(at)ravib(dot)com

making parllel for loop with uses of all processor

KUNWAR99929-Mar-12 8:52

KUNWAR999

29-Mar-12 8:52

here is my code, word is a string array. i want to convert this code into parllel ,so that i can reduce time and use all processor of my i5 processor system..

for (int i = 0; i < k1; i++)
{
for (int j = 0; j < k1; j++)
{
num[j][i] = Convert.ToInt32(words[count]);
count++;
}
}

can anyone help me out in this????

Re: making parllel for loop with uses of all processor

Eddy Vluggen29-Mar-12 9:05

Eddy Vluggen

29-Mar-12 9:05

Easiest solution is to convert it to a parallel loop[^], available in .NET 4;

using System;
using System.Threading.Tasks;

class Demo
{
    int N = 1000;

    void TestMethod()
    {
        Parallel.For(0, N, (i, loopState) =>
        {
            Console.WriteLine(i);
            if (i == 100)
            {
                loopState.Break();
            }
        });
    }
}

If you need more control, you'd typically use a thread[^].

Bastard Programmer from Hell Suspicious | :suss:

Re: making parllel for loop with uses of all processor

KUNWAR99930-Mar-12 7:13

KUNWAR999

30-Mar-12 7:13

I tried this code.. but i m getting high execution time than its sequential code.. and parllel execution should take less execution time than sequential code.. Frown | :(

Re: making parllel for loop with uses of all processor

Eddy Vluggen30-Mar-12 8:02

Eddy Vluggen

30-Mar-12 8:02

KUNWAR999 wrote:
and parllel execution should take less execution time than sequential code..

..if the problem can be solved using parallel threads, and only when implemented correctly. The example was the easiest method, but it's only a shorthand for a specific type of problem.

You can spawn threads[^] to run code concurrently. It's usually the OS that decides on which core the thread runs, but I believe you can set it's affinity.

Bastard Programmer from Hell Suspicious | :suss:

Re: making parllel for loop with uses of all processor

KUNWAR99930-Mar-12 8:14

KUNWAR999

30-Mar-12 8:14

i hv tried it one more way as using #pragma omp parllel ..
but vs2010 saying that its unrecognized concept..
actually i am avoiding using threads because i want to use parllel processing in processor directly.. Frown | :(

Re: making parllel for loop with uses of all processor

Eddy Vluggen30-Mar-12 8:26

Eddy Vluggen

30-Mar-12 8:26

KUNWAR999 wrote:
actually i am avoiding using threads because i want to use parllel processing in processor directly..

..and how would you do that?

Bastard Programmer from Hell Suspicious | :suss:

Using Reflections

SFORavi29-Mar-12 8:21

SFORavi

29-Mar-12 8:21

Can you please explain or give a link to understand basic concept of Reflections in c#.

Thanks, Ravi

Re: Using Reflections

PIEBALDconsult29-Mar-12 8:41

PIEBALDconsult

29-Mar-12 8:41

http://msdn.microsoft.com/en-us/library/gg145033.aspx[^]

Re: Using Reflections

Ravi Bhavnani29-Mar-12 11:13

Ravi Bhavnani

29-Mar-12 11:13

See this[^] tutorial.

/ravi

My new year resolution: 2048 x 1536
Home | Articles | My .NET bits | Freeware
ravib(at)ravib(dot)com

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