Software Development Forum

hi i want to Maintain login and logout time details for each user and store those details into my database... (each time the user loggedin) and when the user Exit the application it store logout time in database what is the efficient way to do this.. need ur suggetsions..

when user login it will check if user exist in database or not what is wrong with this code Dim a As New System.Data.DataView Dim b As New System.Web.UI.DataSourceSelectArguments Dim usname As String Dim password As String SqlDataSource1.SelectCommand = " select usname , password from userinfo " a = SqlDataSource1.Select(b) …

I have 2 datagridview (later- dgView), textboxes and some buttons. Everything is bounded and connected with MS Access db. The tables in db are related!! 1st dgView contains Name and Surname table. 2nd dgView contains Details. Now, how can I disable a delete button when datagrid is empty. I'm using …

;I wrote this program that will display a calendar for 3 months.I try to run it with NASM and TASM but i keep getting errors . Can somebody run it and tell me what to do . thanks .MODEL small .386 .STACK .DATA inBuffer DB 80 DUP(?) scrBuffer DW 25*80 …

Hey folks I'm using a listview to show an array of images that get taken from a webcam. I want them ordered on the bottom of the screen and be selectable for saving, so I'm using a listbox. Everything works okay, but when I add items to the listbox and …

I'm working on softwares that were built without taking into account that they could be sold in modules. At the present time, when we (the company I'm working in) sell the software we have to install all features on the client. I know that currently there's a technique using "Prism" …

(sorry for my english...) I have created a textbox where i take the number of textboxes that i must create... i created the textboxes pressing a button whit this... N = Convert.ToInt32(textBox1.Text); //N is a global variable... ValoriText = new TextBox[N]; for (int i = 2; i <= N + …

I have a small player built on a frame. At form_load, I set the form width/height equal to the size of the design (two fixed size images on top of each other. The form has no border, no control (dock, min, max, exit). When running, the user wants to move …

Hey guys just joined.. So I'm learning C#, and kinda having trouble with finding the command prompt? Installed Vistual Studio 2008 Express with C# and visual basic. After that I installed XNA 3.1. It's supposedly in a folder in the start menu under 'Microsoft Visual Studio Tools', but I have …

Sorry to pester everyone with my lack of knowledge, but any help on this matter would be appreciated, thanks: So, having looked around various forums and threads i found that mouse simulation and mouse clicking can be achieved through VB.NET; more specifically, i found this code: Dim pointer As New …

Q-1 Write a shell script in Unix that lists files from your current working directory · By modification time when called with lm · By access time when called with la. By default, the script should show the listing of all the files in the current directory. Q-2 Write a …

Good Afternoon, I'm having a little trouble with a class. The error that I'm getting is: a nonstatic member reference must be relative to a specific object in the function void B::printStatic() { cout<<"size is "<<size<<endl; Here is the code that I have. #include <iomanip> #include <iostream> #include <string> using …

I have this assignment to make an infix calculator I think I have all the logical things figured out, but I am having trouble converting values. the return is a double, but the read in is a string and outputting as a double, I know that there is the difference …

Hey everyone, I never programmed before in no languages, but I would like to learn C, and I'm undecided on what book to read to learn from. I have no possible experience at all. May someone tell me as a beginner should I read either C Primer Plus by Prata? …

Hi,I have problem on my code,it will not insert to the database can you pease help me on this.Thank you in advance. Imports System.Data.SqlClient Imports System.Data Public Class Form1 Private m_con As New SqlConnection Private m_DA As SqlDataAdapter Private m_CB As SqlCommandBuilder Private m_dataTable As New DataTable Private m_rowPosition As …

I'm trying to make it so in my game when you equip your dagger it will change the variable dagger so I can tell if its equipped or not. from sys import exit from random import randint class Game(object): dagger = 0 def __init__(self, start): self.quips = [ "GAME OVER... …

Hi, I am currently working on a script that will compare two numbers from a file. I am thinking that I need to use a regular expression in order to get the numbers, however I don't know what the regex would be since there are multiple numbers through out the …

Hi all - I am having a little trouble getting going on the methods for this assignment. I need to use a method which passes a Scanner as the object to create an array that is the correct size, but has null values. It reads in a file which contains …

For part of my project, I need to write a piece of code that will perform a task (beeping) once per second for ten seconds. I found this code online and tried to modify it to fit my needs, but I couldn't seem to get it. This code doesn't beep, …

this code is my attempt at modifying a simple game i found in the book "head first java".. (pg-98 if anyone's interested) the game is about sinking battleships! ... actually... its just about declaring some blocks of a virtual array to comprise a battleship, and the user makes guesses about …

Hellou. Can anyone tell me how can i save a string to a file? I have this function: void PrintGameBoard(jogo_4line*jg) { int i,n; system("clear"); printf("===============Jogo do 4 em linha===============\n\n\n"); printf(" +--+--+--+--+--+--+--+\n"); for(i=1; i<=6; i++) { printf("%d |%c |%c |%c |%c |%c |%c |%c |\n",7-i,jg->T[i][1],jg->T[i][2],jg->T[i][3],jg->T[i][4],jg->T[i][5],jg->T[i][6],jg->T[i][7]); if (i!=0) printf(" +--+--+--+--+--+--+--+\n"); } printf(" …

I am thinking of writing a path_name_class that would be easily adaptable to any file system, but I have run in this difficulty: it appears that some file systems allow **ALL unicode except null** characters in their directory entry (this is the case for example for exfat and many others …

Dear all, I am certainly not an expert in C++ development but after some time, I had some code running and compiling for a bio-informatics tool. As always in Science, I changed my area of research of a while and when I came back to my tool, I had changed …

I wrote this program, when i run it, everything seems to work ok, but in the eclipse console i get a long list of errors, what is wrong with my program and how should i fix it? thanks import java.applet.Applet; import java.awt.Color; import java.awt.Graphics; import java.awt.List; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; …

print "enter a number: "; $in = <>; chomp $in; print &prime($in); print "\n"; sub prime{ for($i=2;$i<($_[0]/2+1);$i++){ if($_[0]%$i ==0){return "not prime\n"} } return "prime\n"; } can anyonet tell me, what program do i use to make this code work?.. i just found it on the internet while searching a formula …

Thanks in advance Shanti

#include<iostream.h> #include<conio.h> #include<string.h> class X {public: int a[50],n; char b[20]; char name[20]; void input() { cout<<"Enter the limit upto which you want to enter "; cin>>n; cout<<"Enter the numbers "; for(int i=0;i<n;i++) { cin>>a[i]; } cout<<"\n enter the string"; cin>>b; } void large() { int c; c=a[0]; for(int i=1;i<n;i++) { …

Hi, I'm working on some questions for homework and I have a small idea what the answers may be. Can anyone look my answers over and help me out maybe explaining why they may be wrong or right? Question 1: answer "b" Here is a diagram of memory: Which declaration …

I assume this is simple enough, when you know how :) I retrieve 2 files, pricelist with multiple information such as number, price, desciption and so on, the 2. file is discount file, with 2 fields : discountcode;discount like G30;48 which means discountcode = G30 which equals 48% I have …

how to loop and how to add score? and i want to make sure that people can ask how many question the want to answer in my quiz. how can i do that? # make input equal to Python3 style input even in Python2 try: input = raw_input except: pass …

What are the advantages of Macros over External(Global) variables?

Hey guys i need some help on how to Subtract the Dates i used a readline for sotring the number of fines per day on a txt file....now i wanted to know how do you subtrack the date the book borrowed and the date it was returned then multiplying the …

I am new to phyton

What is a flag in java? when do we need it in our program? what it is used for?

` print "Welcome to my quiz" begin = raw_input("would you like to begin?: ") if begin =="yes": print "A)True" print "B)False" q1 = raw_input("Is Steve Jobs is the founder of Apple?") if q1 == "A" or q1 == "a": print "well done! you got it right!" else: print "thanks for …

Hello everyone, I want to implement Kruskal algorithm for finding minimum spanning tree in Adjacency Matrix for my program. So I want to write method Graph& getMinSpanningTree() . I have 2 classes: class Graph { public: /* Adds an edge between given vertices. Third argument is a weight of an …

Hi there, how can I split a string into variables?? better: string s = "one,two,three,four"; // Split string on character comma. string[] words = s.Split(','); foreach (string word in words) { Console.WriteLine(word); } how can I put an incrasing variable (for n splitted words) instead of 'Console.WriteLine(word)' thanks

I am still new with c programming, I need to create queue with first in first out but it is going last in first out. Can someone give me advice in how to make it work. #include <stdio.h> #include <stdlib.h> #include <string.h> #define MAX_LENGTH 30 #define NUMOFEMPLOYEE 15 typedef struct …

I understand how to write a function to loop through a vector<double> and calculate the mean and standard deviation of its values, but I was wondering if there is a library which I could simply #include<> and then just call a function to compute such values.

So i am doing a program that opens a file that contains grades and shows the average, total, etc.. But at the end I am supposed to make a histogram that would look something like this A= * * B= * * * C= * * * * * * …

Hi all, I have a procedure that compares release dates to file download dates. I have a download folder that is added to a string Dim strFilePath = "\EconomicDBTemp\DownloadedCSVs\" I've removed the directory but the folder DownloadedCSVs is where I need to search each csv file. However, I am unsure …

Hi, I looked all over and since I'm probably not using the right termonlogy I couldn't find anything in Google. Here's what I'm trying to do (in ANSI C). I have a text that represents a series of bytes that looks like this: "08 FF AB 0B 12 76 CD" …

I have two forms that share data between eachother. 1. In Designer view of Form2 I establish a public variable. public bool isMyFormValid 2. When I attempt to access the variable in Form1 like this... if (Form2.isMyFormValid = true) { //do this} C Sharp no likey... I get this message: …

void main() { unsigned int x=500; int y=-5; if(x>y) printf("hello"); else printf("hi"); getch(); }

Thanks for the support! I have been working on a program with 7 classes, one the main and one starts the program, and I have been troubleshooting for a few hours trying to see why for one of the output constructors I'm not getting the classes to update the output. …

Hi everyone, i got a question about the fscanf. I input a file and scan the data in the file. It works good that if there are integers in line1,2,3,4 in the file. However, it does not work good with empty file or the file only has dat in line …

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Linq; namespace Discrete_Structures { public partial class Form1 : Form { int[] array2; int[] array1; int[] value; int num1; int num2; public Form1() { InitializeComponent(); } private void textBox1_TextChanged(object sender, EventArgs e) { …

I have created threads dynamically. static void Main(string[] args) { int ThreadCount = Convert.ToInt32(ConfigurationManager.AppSettings["Threads"]); List<Thread> th = new List<Thread>(); for (int i = 0; i < ThreadCount; i++) { Thread t = new Thread(print); th.Add(t); } foreach (Thread t in th) { t.Start(); } } public void print() { console.writeline("123"); …

Does any one know of a software/program that can create a form. the form would have a drop down list, when your select an item on the list some part of the form would populate with items base on whats selected in the drop down. the other field can be …

note i want to do this code in background class. not in main class. so i have a main class and a background class. getting error at url = getDocumentBase(); also getting error at getImage drawImage background class import java.awt.Color; import java.awt.Graphics; import java.awt.Image; import java.awt.Rectangle; import java.net.URL; //#2 public …