C Sharp :: Multiple IP Address Conundrum
Nov 15, 2012
So I have an application that needs to send the current IP Address to a service. My problem is that I have a couple of machines that show two IPV4 addresses on the same NIC. Unfortunately the standard .net calls for the IP Address always appear to show the IP Addresses in numerically sorted order and it will be random as to which one of multiple IP Addresses my application uses.
Any way to force Windows 7 and XP to always put a specific IP address as the first one regardless of the numerical order?
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Nov 3, 2014
I've been having 3 days worth of difficulties with a part of my code for a moving-a-robot-around-blocks problem.
No error messages; it runs, it just, sadly, isn't doing what I want it to do.
When I isolate the random-number generating part of the code, it works just fine and give me numbers 0-7. However, when I put those random numbers into another functions to use them as x and y coordinates in the matrix (in order to randomly position 10 blocks, represented by the number 10), and then go to print the matrix (which should be all zeros except for 10 100s), I get a large random number in each position.
#include <stdio.h>
#include <time.h>
int getXCoordinates() //this function gets random x-coordinates in matrix {
int x;
x=rand()%8; // random number 0-7
[Code] ....
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Aug 13, 2013
I need to get the network device name for the given ip address..
I tried with dns.getHostByaddress but it didn't worked..
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Jun 3, 2013
So I've got a button that has to use 2 textboxes to search for 2 columns in my database.
private void btnFilter_Click(object sender, EventArgs e) {
SQLiteDataAdapter adap = new SQLiteDataAdapter("select * from Test", GetConnection());
DataSet ds = new DataSet();
adap.Fill(ds);
dgvTable.DataSource = ds.Tables[0];
[Code] ....
My Current code for it.
The GetConnection(); and the CloseConnection(); Methods are just making a new connection and closing that connection, if needed I can post that code too later.
But basically, It only "filters" 1 textbox but if I say I want to search the Channel and the Log in which it is in, it doesn't search anything and returns all data in the database.
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Nov 29, 2010
I have a tcp client - server implementation running in the same program, on different background worker threads. There will be instances of this program on multiple computers so they can send and receive files between each other. I can send files sequentially between computers using network stream, but how would I send multiple files at the same time from computer A to B.
Sending multiple files over one connection ( socket ) is fine, but having multiple network streams sending data to a client, the client doesn't know which chunk of data is apart of which file ?
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Nov 22, 2012
how l can add multiple records when using the console app. This is the excercise l have done so far:
string name;
string surname;
int score;
Console.Write("Enter Name:");
[Code]....
l want to be able to add more student records and display the student with the top score.
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Aug 14, 2012
I'm having a bit of trouble with something. What I'm trying to do is create a new Access table by combining other already existing Tables.
For instance, let's consider Table1 (with columns A, B and C), Table2 (with columns A, D and E) and Table3 (with columns A, F and G), where Table1.A = Table2.A = Table3.A.
From these, I want to create a new table TableResult, with columns A, B, C, D, E, F and G, with all the data contained in them. There's one catch: I want the code to get the names of the other columns, apart from column A.
I've thought about using Union, but I need to actually create a new table by combining the previous tables.
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Sep 18, 2013
Need to create multiple word documents on the run.
My problem is its creating the last one only.
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Jun 1, 2013
Ihave a gridview which populated via selected item on my drop down list which I don't have any problem with that. My problem is I am trying to save multiple rows on my gridview into my database, for example I have added 3 items on my gridview which looks like this:
Id | Name
111 | Jack
222 | Nicole
333 | John
Now, I want all that under column Id which is 111, 222 and 333 will be save on my database once I click Save button I am trying the code below but it gives me an error saying "system.data.sqlclient.sqlparameter does not contain a definition for 'Values' and no extension method 'Values' accepting a first argument of type..." :
SqlConnection con = new SqlConnection("Data Source=GATE-PCSQLEXPRESS;Initial Catalog=dbProfile;Integrated Security=True");
SqlCommand cmdd = new SqlCommand("Insert into profile (Id, profile_id)VALUES(@id, @profile_id", con);
foreach (GridViewRow row in GridView1.Rows) {
[Code] .....
My table should be look like this once I am able to save multiple rows from my gridview into my database:
auto_id | Id | profile_id
1 |111 | 101
2 |222 | 101
3 |333 | 101
I am using asp.net with c#.
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Jun 24, 2013
I have the following code which allows me to add the pdf files if I give the exact name and path of the file. But I have multiple pdf files in a folder which I want to add to each cell in the first column. I am having trouble thinking of the logic to have a for loop for a folder which contains the pdf files.
private void button1_Click(object sender, EventArgs e) {
Excel.Application xlApp;
Excel.Workbook xlWorkBook;
Excel.Worksheet xlWorkSheet;
xlApp = new Excel.ApplicationClass();
xlWorkBook = xlApp.Workbooks.Add(true);
[Code] ...
But this is very very rough draft. I have say 20 files in the folder pdf with different names(Title). How can I add all the 20 pdf files in the excel sheet?
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Nov 8, 2014
I am working on a windows application that is for make a time schedule for all staff. i am using two gridview one for all staff names from employee table , and second is for time schedule, time schedule DGV is like 6to7 , 7 to8...12to1,... 5to6 columns . when user will select like 7to8 , 8to9,9to10, columns with holding ctrl key , thn i have to assign some work beteen these time for 3 hours. So i have to get multiple columns from Gridview.
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Mar 29, 2013
I'm trying to add a function now that lets the user open 1 or more files and import them to the database and dataGridView. Now the way it is now (should) work. But when it has finished with FILE1, it won't add FILE2 as it then gives me an error that the Column Date Already exists.
My code is below
private void btnOpenLog_Click(object sender, EventArgs e) {
OpenFileDialog openFileDialog1 = new OpenFileDialog();
openFileDialog1.Filter = "Log Files (*.log)|*.log";
openFileDialog1.Multiselect = true;
[Code] .....
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Apr 23, 2012
I've a html table in my web form which contains 30 rows of textboxes. I want to display all the textbox values by using a search command...
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Mar 26, 2013
I stored multiple images in MySQL SERVER 2005. Now I want to retrieve particular category of images into multiple picturebox at runtime in C# Windows application. i used the following code in my final result form at form_Load using c# windows apps.. But it displays only one picture at run time.
SqlConnection con = new SqlConnection(@"Data Source=ttt-PC;Initial Catalog=Query_Image;Integrated Security=True");
SqlCommand cmdnew = new SqlCommand("select pic from Image_Category
where IMG_Cat='" + searchvalue.ToString() + "'", con);
con.Open();
[Code] ....
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Mar 20, 2013
I have a dynamic number of lists coming in from a different method . i need to find out the common elements present in all of the lists .
How do i do it with intersect construct in C#.
Placing it in a loop gets me the elements common in the last comparison , but never gets me elements commong in all lists.
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Mar 14, 2014
I have an EDI file whose structure is given below. This file has multiple records, each record contains a header (e.g EDI.DD.0000000001.20130809), then contents (i.e multiple paragraphs of text) and then footer (e.g End of Report/No EDI Activity). I have to read that entire file using regular expression using three groups.
I am using following regular expression to read the file.
(?<header>[A-Z]{3}.[A-Z]{2}.[0-9]{10}.[0-9]{8}) | (?<footer> (EndsofsReport|NosEDIsActivity)) |
(?<content>(?<=k<header>).*(?=k<footer>))
That expression reads the "header" and "footer" in respective groups properly but didn't pick the contents between header and footer in "contents" group.
I have changed the font of header and footer in below file to understand the format. I am using asp.net 3.5 framework.
//------------------Start of EDI File---------------------//
EDI.DD.0000000001.20130809
ORIGINATOR INFORMATION Company Name: UNITED HEALTHCAR Identification: 9024125001 Originating DFI: 002100002
RECEIVER INFORMATION Receiver Name: HEALTH & WELLNESS DFI Account Number: 0000000000000001 Receiving DFI ID: 434343430 ID Number: Transaction Type: 22 Deposit
ORIGINATOR INFORMATION Company Nam
[Code] ....
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Jul 31, 2014
I want to develop an application which can host multiple views of explorer (window), where as each window is totally separate from others. So that I can have multiple desktop views through my single explorer. Any built in feature in .NET ?
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Aug 17, 2014
how to make subroutines and return multiple arrays.Before that, i wrote my program on matlab. could my program to be structured as following?
<header>
initial value of program;
subroutine1() {
calculating the first work;
return 2 or 3 arrays;
[code].....
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Mar 21, 2014
I've been working on a function that works like a pipeline of a shell but receives a directory, go over it an search for every file to send it to a filter, something like this in bash "cat dir/* | cmd_1 | cmd_2 | ... | cmd_N", The only problem i have with the code is the redirection of the pipe descriptors.
Code:
int main(int argc, char* argv[]){
char** cmd;
int Number_cmd;
cmd = &(argv[2]); /*list of cmds*/
Number_cmd = argc-2; /*number of cmds*/
}
[code]....
The code is seems to work fine except when i run it with more than one command in example ("./filter DIR wc rev") in this case it returns
wc: standard input: Bad file descriptor
wc: -: Bad file descriptor
0 0 0
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Jul 15, 2013
I'm using multiple C++ files in one project for the first time. Both have need to include a protected (#ifndef) header file. However, when I do that, I get a multiple definition error.
From what I found from research, adding the word inline before the function fixes the error. Is this the right way to do this, and why does it work? Should I make a habbit of just declaring any function that might be used in two .cpp files as inline?
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Mar 1, 2012
Say I have 5 vectors of unsigned char each of size 5. I want to take the max of each index and store it in a new vector. What is the most optimal way to accomplish this?
My slow code:
Code:
vector<unsigned char> vec1;
vector<unsigned char> vec2;
vector<unsigned char> vec3;
vector<unsigned char> vec4;
[Code]....
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Aug 2, 2014
Are Reference and Address same or Different?
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Aug 14, 2013
So I obviously can't take the address of a bitfield, but is there a way to get the address of the field holding the bitfield? What I'm trying to do is find the address of the parent field of a bitfield in a class. For example
Code:
class Foo
{
public:
int a;
int b : 4;
int c : 28;
[Code] ....
My goal is to get the offset address of the int storing c in class Foo. But offsetof uses the address of c, so I get a compile error since c is a bitfield. What I wanted as output from the above would be "4", since an int is 4 bytes (on my system). So the int holding both b & c starts 4 bytes from the start of the Foo class. Is there any way to do this in c/c++?
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Dec 7, 2013
I've run across this issue before, but for the like of me, I can't figure out what keeps causing it. The problem compiles and runs as expected; however in the salaried object (Employee #1 in main.cpp) the console displays the number of vacation days as -858993460 instead of the value entered.
The parent Employee class is abstract with calculatePay() and displayEmployee() being pure virtualls and with a Benefits, Salaried, and Hourly class derived from it.
The Salaried displayEmployee() and the portion of the Main.cpp that contains the salaried object follows. What causing this?
Salaried displayEmployee()
Code:
void Salaried::displayEmployee()
{
cout << endl;
cout << "Employee Information" << endl;
cout << "----------------------------------" << endl;
cout << "Employee Name: " << setw(7) << FirstName << " " << LastName << endl;
cout << "Gender: " << setw(12) << Gender << endl;
[Code] .....
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Jan 31, 2014
I've got a problem with a piece of code that it doesn't seem to work anymore.
Code:
#include <stdio.h>
#include <conio.h>
main () {
[Code] ..... i
I chose a to be 5 and it displays the following:
"Type a value for a:
5
5 in octal is: 5
5 in hexadecimal is: 5
Process returned 23 <0x17> execution time : 1.031 s".I first saw this when trying to display the address of a pointer. Am i missing something? I used to run this code on dev-c++ successfully but after a day or so of practice, it's not working anymore. I switched from dev-c++ to code blocks.
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Oct 1, 2012
So im trying to parse a string into a Ip Address but i have a problem, the IPAddress.Parse method only works for ipv4 address's how do i parse ANY Ip address into a string, if i use the IPaddress.Parse method on my public(remote) IP it throws an exception but on ipv4 local ip it doesn't how do i parse ANY ip address the user inputs as a string as an Ip Address?
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