Software Development Forum

hi there, i have a datagrid view in a form. when a button is clicked for the first time a new row is added to the daagridview, when i click the button for the second time i want to check whether there is a blank row in the datagrid view, …

I finally figured out that my applet needs to be signed for it to work. So I've spent the last few hours figuring out how to do that. I used the keytool to create my .crt file, then created the .jar file using jarsigner. After I did all of that, …

Dear all, I am creating a small project for my company ie; document controller. In this project a small module is reading documents. I already made reading of other documents like word,text, etc. But I am unable to create a program that can read pdf files. My main aim is …

hi can someone tell me how to write a code in assembly language(ASM16,TASM Compiler,Windows) to implement a simple countdown timer (to miliseconds accuracy) display on the command prompt screen? after starting the program when you press the space - the stopwatch will start - press space bar again - stopwatch …

Hey, I noticed that I have been using var instead of string, int etc. in delegates due to a habit from another language where they were cleared after, and it just makes a temporary value for the class only, and once it has executed, is deleted. Is this the same …

Hello everybody, I am currently developping a GUI interface game for windows XP. I am currently having difficulty changing the background of a EDIT box created with CreateWindowEx(). It's default background is white (which is the color I want). But the user is not supposed to be able to adjust …

Hello I've been designing a Bookstore where students can login to their accounts and buy books. And since then i've been struggling with this " error '424' Object required " and i i don't know how to fix it. This starts at the beginning of the program at the login. …

Hello ,Iam trying to write a programme for the connect -N game : Your program must allow two people to play Connect-N against each other using a text-based interface. Since this is a text-based game, we do not represent the players as colours(traditionally red and yellow), but instead as numbers: …

Hi Modify this where possible

Format of the connection string to access an ACCESS database in c# over network? I want to make a OleDbConnection in c# and connect it to an access database in another PC on my lan. This is an example of a connection string to connect to a database on my …

Hey all, stuck on abit of a problem. I am outputting afew strings to a text file. However when I check the text file it has been automatically split into 2 lines. Is there anyway to force the output to remain in one line or what is the reason for …

Hi, i am trying to read the contents of a text file containing a single line into a string. i'm doing this in a while loop. the text file gets updated in each run of the loop and therefore the string should contain a new value in each run. but …

I'm a newbie so please forgive me if this is a stupid question. I don't understand what I've missed in the code below and how I can get it to work. I have a few lines of code that works fine. It makes a * show as an error message …

I've made a Circular List and I need help implementing a simple memory management. It's the first time I'm doing this so I really have no idea where to start. What I want to do is pre-allocate X amount of Nodes that I can use for my list. Only when …

Hello Is there a recommended way to drag a table from netbeans pallet and use ResultSetMetaData or any class to have the table change automatically for any table being displayed? thanks

Hey everyone, I'm trying to get this code to work... [CODE]#include <stdlib.h> #include <stdio.h> #include <stdbool.h> int allPrimes(int n) { int kiloN = n*1000; int count = 0; int i; for(i = 2; i <= kiloN; i++) { boolean hasfactor = false; int j = 2; while(j<i and !hasfactor) { …

Hi I'm new and have a question regarding MIPS hardware single cycle datapath. I've search and looked through many textbooks and I couldn't find the answer to my question. My question is how does a shift instruction (srl, sll, etc.) get interpreted and travel through a single cycle datapath. Everything …

The following function DateAdd("h", -24, DateAdd("d", 1, DateValue(Now))) gives todays date without any minutes or seconds. How is it possible by just adding 1 day and subtracting 24 hours we get todays date without time in the result. 'Now' actually displays time along with date

hi i want to redirect python compiler messages to a file. for example if i run a python which has a line [CODE=python]a=;2[/CODE] python compiler will give me an error message saying 'syntax error' how i can fetch this error and write it to a file? i run it with …

[CODE] //************************************************************************************ //function playagain(); //parameters char cAns //resets game variables and board or exits game //************************************************************************************ void playagain(char cAns) { cout<<"would you like to play again?(y/n)"<<endl;//function call depending of the choice of the player cin>>cAns;//sts value to variable do { iTotalMoves=0;//resets # of moves ResetBoard();//resets game array cPlayerSymbol='a';//resets game char …

I figured it out. To return an array you need to write your function as so [CODE] int *foo() {} [/CODE]

i have a very simple program which takes in file name as argument and print the content of the file , but for some reason it isnt working here is the code [code] import sys ,os def Cat(filename): f = open(filename) text = f.read() print '----', filename print text def …

Hi, I'm trying to code a tile engine for a game a couple friends and I are making. The main speed bump that I've run into is converting a string, which the contents are only integers(from a text file), into a integer array. How would I go about this? Thanks …

I just upgraded my server and now a simple log script reaks of errors. [code]#!/usr/bin/perl use CGI ':standard'; use warnings; $database = "/full_path/filename.shtml"; $shortdate = `date +"%D %T %Z"`; chop ($shortdate); open (DATABASE,">>$database"); print DATABASE "$ENV{'REMOTE_ADDR'} - $shortdate - $ENV{'SCRIPT_URI'} - $ENV{'HTTP_USER_AGENT'}<!-- - $ENV{'HTTP_REFERER'}--><BR>\n"; close(DATABASE); { print "Content-Type: text/html\n\n"; print …

This should be simple, but I think I am missing up the syntax. I am trying to make a list of the letters that appear in a string. import string values=[] values[5]="12234.7B" holder=[] holder.append(values[5].letters) This code gives me an error on the letters function. Any idea why? Many thanks.

Hi Im a bit new here and i have been learning programming for a while now. But i just started to learn asm. I've been all over the internet to find how to build a simple os. But there is not much information that is related to my problum so …

How your guys run the IIS? I am just done a project (vb.net with access) on the vb 2008 express, but not sure the steps to set up and run the project on the internet with IIS? THANKS.

This is my class [CODE]import java.io.*; public class bankAccount { //instance variables public String name; public int number; public double balance; public double deposit; //constructor public bankAccount(String name, int number, double balance, double deposit) { this.name = "John Smith"; this.number = 123456; this.balance = 0.0; } public double getBalance() { …

Good day my masters first let me start by saying that i am a complete novice to c++ programming. i got myself into some trouble while debugging a win32 program in 2008 V.studio. with this code line(with similar lines anyway): ::MessageBox (wndhnd, "Error!", "Exception Occured", MB_ICONINFORMATION | MB_OK); Here's the …

Ok, guys I know that I'm asking too much questions, it's just that I really want to understand how things work. So I have a little project: Make a program in C which runs three processes (A,B,C), which use a common memory (buffer). Process A generates 50 random numbers and …

Just downloaded C# 2008 Express and I am working from the 'dummies guide to C# 2008'. Having initial problem with some things in the book not corresponding to what I am trying to do- 1 cant find a build-build program 1 from the drop down menu. Just build solution. Is …

Hi, I'm writing a program that totals how long someone has worked by the starting time and the ending time. It DOES work if the times entered are both AM or PM. Like if they worked from 2:00 to 9:10, it tells me the right answer of 7 hours and …

Hi , I actually have a script to bundle up two files but i don't know how it works .Can someone please explain. Here's the script:- [code] for i do echo "echo $i 1>&2" echo "cat >$i <<'End of $i'" cat $i echo "End of $i" done [/code] now suppose …

I am a relatively inexperienced coder so please excuse my ignorance. I am attempting to write a code to iterate rotations of functional groups in a molecule. The number of groups that need to rotate and the step size is based on user input. I know i can generate the …

Imagine that we have 10 Labels from up to down in a Form, that each of them contains a number. How can I sort these Labels?, so that the greatest number go to the top of Labels and the smallest one go to the end?

hi all! i have a table layout panel with lots of controls in it. side to it i have a combobox with 5 options "system A" and "system B" ect. when i pick one system, i clear all the controls one by one (checkboxes to check=falsa , textboxes.text = "" …

Hello guys, I'm making an application for myself and I need to get the coordinates of the mouse when left click was pressed. I managed to get the coordinates when I click on the form by using[CODE]MouseUp += new MouseEventHandler(KeyCaptured); void KeyCaptured(object sender, MouseEventArgs e)[/CODE] but when I click inside …

Can anyone think of an intelligent way to extract the largest sequence of numbers from a list like: [CODE=python][[2, 4, 9], [3, 5, 10], [6], [2, 4, 9], [1, 8, 11], [3, 5, 10], [6], [2, 4, 9], [0, 7], [1, 8, 11]][/CODE] without brute forcing every possibility. You can …

I was debugging a program and following is the snapshot: [CODE]81 while (j < len_y && suf_arr[j].word[0] == c) (gdb) 184 if (suf_arr[j].len > 1) (gdb) n 186 memcpy(temp_str, suf_arr[j].word+1, suf_arr[j].len-1); (gdb) n 187 ind = search(suf_arr, temp_str, len_y); (gdb) print suf_arr[j].word $13 = 0x7fffffff96d2 "bbit" (gdb) print suf_arr[j].word+1 $14 …

I use Ubuntu Linux and I'M running python 3. How do I know what version of pygame to get for python 3? And could someone point me to it? Thanks.

Hello there! I am pretty new to xml and xsl. I have been trying to achive a dynamic link creation. My xml file has the format like; <root> [INDENT]<customer>company_name</customer> [INDENT]<id>2334</id> <code>xsTu4</code> <mail>info@comany.com</mail>[/INDENT] </customer>[/INDENT] </root> I want to use an XSL file to give me a link like detail.aspx?id=2334 I have …

Hi, I was wondering if the compiler Visual C++ is smart enough to optimize code like this: [CODE=C++]string temp = "abcd"; string temp2 = "hahaha"; string temp3 = temp + temp2;[/CODE] "temp + temp2" can be replaced by "abcdhahaha" [CODE=C++]vector<char> alphabet; for (char i = 'a'; i <= 'z'; i++) …

I've been working on an applet that gets all the links from a webpage. So far, I have it getting the source. I have found some regular expressions that supposedly will parse out the source, but it doesn't make any change to the original source. I also found some example …

[code]#include<stdio.h> #include<stdlib.h> main(){ char *tab; int n; int i; char c; printf("dimension du tableau?"); scanf("%d",&n); tab=(char*)malloc(n*sizeof(char)); printf("remplir le tableau :"); fflush(stdin); gets(tab); for(i=0;tab[i]!='\0';i++){ printf("%c",tab[i]); } }[/code] let's say i just want 5 letters in tab,so i run the program and put n=5,but what i don't get is that if i …

[code]#include<stdio.h> #include<stdlib.h> #include<string.h> struct name { int a; char b[10]; char c; }; int main() { struct name *p; p = (struct name *)malloc(3 * sizeof(struct name)); char *n; n = "12345"; n = (char *)p; n = (int*)n; /*this is not correct . in doubt....change correctly*/ strcpy(n+(sizeof(p->a)),"ALL"); *(n+sizeof(p->a)+sizeof(p->b)) = …

The aim of the program is to add ten numbers then output their sum. I can do this but in a very basic way. for instance the only way I know how to do this is by adding each array and thats quite tedious and long is there any way …

What is a pre-processor macro and how is it processed by the C++ system? Demonstrate a potential problem with this approach by referring to the macro [CODE]#define SQR(t) t*t[/CODE] what is wrong here... besides the fact that if you put a type that cant use the * operator you'll get …

I've been developing console applications using C/C++. I now want to move on and create some GUI applications. For that i saw some libraries to create GUI. I think those libraries are OS dependent. How can we create GUI applications compatible with Linux, Windows and Mac, or is it even …

Hi , I am trying to insert chinese characters in database using sql statement but they appear as '????????' in the databse.Can anyone help me with this . Thanks

Hi everyone, can you help me please with then following?? a)The C++ Standard Template Library (STL) contains a number of container data types, explain with suitable examples the advantages these give to the programmer over a procedural language such as C. b)Demonstrate using suitable code the usage of the STL …