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| | I'm having trouble printing out what I want. If I put my printing statements inside the Calculate method, it does print out what I expect. However, I want to do it in a separate method. Can anyone tell me what I did wrong? Also, can anyone point out to me …  |
| | I am trying to catch the System.InvalidCastException error. If I put a number into the calculator the program runs ok. If the calculate button is pressed with nothing in the text boxes I get the casting error Conversion from string "" to type 'Decimal' is not valid. I understand why … |
| | Am developing an application with c#. I want to know how to insert data set values into the database |
 | I have to design a database where one requirement says "For each project, for each user, for each skill, store the marks gained". Initially, i had a table where each skill was a column(proj_id, user_id, skill1, skill2, ......., skill_N) I felt this was a bad design because the number of … |
| | how to automatically redirect to a fullscreen page? i googled it but everything ifound don't work for me.. don't know why. all of those codes just open a popup with half a page width and height. And i need it compelety like when u click F11. no any other detail. … |
| | Can anybody tell me the diff between keywords and identifiers? Cin and cout in C++ are keywords or identifiers?  |
| | i want to make a program that contains two main classes and they call each other. [CODE]class Main1 { public static void main(String arg[]) { for(int i=0;i<5;i++) System.out.println(i); Main2 m1=new Main2(); } } class Main2 { public static void main(String arg[]) { static int j=0; for(int i=0;i<5;i++) System.out.println(i); if(j==3) break; … |
| | Hii guys.... i am a new programmer of java. i want to implement a problem using CALL BY REFERENCE as i have done in C. please help me to do this. |
 | A thread was started ([url]http://www.daniweb.com/community-center/daniweb-community-feedback/threads/363816[/url]) inquiring about creating an objective-C forum. I am open to this as long as it is indeed a unique language with unique characteristics (and not a subset of C or C++, for example). However, my main hesitation is that creating a forum is, often times, … |
 | Hello Experts, How can i save the optionbutton and checkbox value in sql database? please send the query: dim cmd as new sqlcommand("insert into [tablename] values(........)",c.con) please help me :)  |
| | I have a simple php script that starts sessions. On every page, I include : if(isset($_SESSION['sessionname'])){ //The rest of the page } else { die("Not logged in"); } I always include the session start and always regenerate the session id after <?php. The code works fine withevery browser except for … |
| | Hi guys, I am experienced in PHP or at least until today I was thinking so. I am not sure what is it all about exactly. In my opinion the following code should not echo anything BUT IT DOES. [CODE] $cache = 'all'; if($cache == 0) { echo 'Execute something'; … |
| | I need to make the integer "order" save to a text file or database (All I need it to do is to count how many times you win & save it there). Every time the game starts up, I want it to read it, & every time the game is … |
| | Hi I am using jasper reports to generate pdf reports from product data.I am storing the pdf file into a database column (blob) using FileInputStream.I have got a desktop application which retrieves the tables from the db.What would be the best way to retrieve and view the pdf file in …  |
| | Hi i have a directory containg about 300 files with different extensions like : .txt, .php, .html,etc.. and i have tried this code but it displays a files list instead of only thier extentions [CODE]string[] filePaths = Directory.GetFiles(@"c:\tmp]");[/CODE] so what i need to do is to display all the files … |
| | 0 down vote favorite share [fb] share [tw] share [in] i am working on a tiny tiny app that just uploads a file to the ftp server, i have reviewed my code but am quite unable to locate the problem, here is the code, [CODE=C]#include "stdafx.h" using namespace System; #include …  |
 | Having trouble with a simple database command I keep getting the error invalid column name and I cant seem to figure it out. Please help me figure out some possible problems Thanks. [CODE=VB] Dim ConnString As String ConnString = "Data Source=.\SQLEXPRESS;AttachDbFilename= C:\inetpub\wwwroot\KiKoGraphics\App_Data\aspnetdb.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True" Dim sqlConn As New SqlConnection(ConnString) … |
 | When i pass the parameter and run the report it works fine as i close the form it closes the form is there any way so that i should be able to close the crystal report viewer and pass the parameter again and should be able to view report again. … |
| | I have a csv file in drive C: when I am going to display in datagridview but the 1st line is not display in gatagridview, My csv file content data is as follows "^NSEI",5040.00,"9/2/2011","6:00am",+39.00,0.00,0.00,0.00,0 "RCOM.NS",84.70,"9/2/2011","6:29am",+5.15,81.90,85.65,79.70,13378691 "RELIANCE.NS",805.45,"9/2/2011","6:29am",+22.85,796.70,813.70,789.45,7791545 "DLF.NS",207.85,"9/2/2011","6:28am",+11.10,194.25,209.90,191.05,10297314 "UNITECH.NS",26.85,"9/2/2011","6:30am",-0.75,27.80,28.45,26.70,44035656 "HANUNG.NS",101.10,"9/2/2011","6:29am",-0.50,102.35,104.80,100.60,326326 "LITL.NS",16.75,"9/2/2011","6:29am",-0.30,17.00,17.50,16.35,9415675 "INDIABULL.NS",149.95,"9/2/2011","6:28am",-4.00,155.00,157.00,148.50,677258 My code is below: [CODE]Dim csvFileFolder As String = … |
| | Hi Guys. I'm still a php newbie. In our class, we have just discussed creating PHP functions. As expected, we were given some exercises. Unfortunately I was not able to make my self-made function. There were actually two files, namely; functions.php and max_of_3.php the 'functions.php' is where the function is … |
| | [CODE]#include<stdio.h> #include<conio.h> #include<string.h> #include<ctype.h> int main() { char org[50],r[50],m[50],a; int i,j,c=0,length=0,h=0,g=0,z; char token [3] [20] = { "void", "main", "int"}; printf("\nenter a line:"); gets(org); for(i=0;org[i]!='\0';i++) { length++; } for(h=0;h<3;h++) { for(g=0;g<length;g++) { z=strcmp(org[g],token [h]); if(z==0) printf("Keyword:%s\n\n",m); else printf("NO_Keyword:%s\n\n",m); } } printf("\n"); system("pause"); return 0; }[/CODE] it is showin this warning....[Warning] … |
| | Hello, basically I want to read an input .txt file, and check to see if '+' or '*' is at the beginning or end of the file. The file can have a space at the beginning, and that should be ok. This is the code that I think should work, … |
| | Hi, Need some help with an problem that bugging me.. I have to open a .doc file at the client side when the user clicks a button. Opening is not a problem.. I am able to do it using the following code which is executed when the user clicks on …  |
| | In chain hashing how can the order of deleting a node in double linked list be O(1) it should first check for the slot which is of O(1)and then it should check for the element to be to be removed in the linked list pointed by that slot which is … |
 | Okay, so I have tried to write a program that would generate the rule of 110. quoted from wikipedia: The Rule 110 cellular automaton (often simply Rule 110) is an elementary cellular automaton with the following rule table: current pattern 111 110 101 100 011 010 001 000 new state … |
| | Hello, I'm learning Python. It is my first interpreted language. I have some experience with C and C++. I must admit that it's very hard for me to accept a concept of interpreted language. For example I write code in C++, compile it, link it and I have .exe file … |
| | Hey folks. I currently have a large JSON file made up of entries similar to the below. The file contains information relating to photographs:- [CODE]{ "SourceFile": "C:/Users/Me/Desktop/Photos/5294030805_9497032cd7_o.jpg", "ExifToolVersion": 8.63, "FileName": "5294030805_9497032cd7_o.jpg", "Directory": "C:/Users/Me/Desktop/Photos", "FileSize": "1094 kB", "FileModifyDate": "2011:09:09 22:40:39+01:00", "FilePermissions": "rw-rw-rw-", "FileType": "JPEG", "MIMEType": "image/jpeg", "JFIFVersion": 1.01, "ExifByteOrder": "Big-endian (Motorola, …  |
| | Hi everyone, I was wondering if anyone could help me - at the minute I have a c++ program that renames a file and then attempts to move it too a new folder using linux commands and passing them to the 'system()' function. It renames the files no problem - … |
| | I'm writing a simple cryptography program that uses ISAAC, and I've run into a wall. I am planning on XORing each of my input bytes with 1 random byte each that gets returned from the ISAAC PRNG. This is basically what I'm trying to do [CODE]while(input character != EOF){ read …  |
| | Ok, I've been trying to research this, but have had no real luck for my level of understanding. I've been programming C++ for a while and have decided to learn DB programming (just because I want to). Anyhoo, I am unable to figure this one out: I have a simple … |
| | I have the following code for shell sort (recursive) given in the question where t[ ] is an array to be sorted, n=no of elements initially. h is any large no initially,say h>n. [CODE]void shell_rec(int t[],int n,int h) { int aux,i; if(h<=0) return; if(n>h) { shell_rec(t,n-h,h); if(t[n]<t[n-h]) { aux=t[n]; i=n; … |
 | As the title says- I'm not sure which appdata folder to use- Should I use CommonApplicationData, The directory that serves as a common repository for application-specific data that is used by all users. Or LocalApplicationData, The directory that serves as a common repository for application-specific data that is used by … |
| | i m having trouble in constructing a edge detector by using the sobel kernels and expected results are the vertical, horizontal and gradient edge image. Sobel kernels : [-1 0 1 hx = -2 0 2 and -1 0 1] [-1 -2 -1 hy = 0 0 0 1 2 … |
| | I got my code to check for how many digits that i type in my raw input [CODE]num = int(raw_input("Enter, ")) import math digits = int(math.log10(num))+1 print digits [/CODE] example 1587898 then it prints 7 digits I need my code to calculate the digits i type in my raw input …  |
| | Hi all, I'm having problems writing to a file, and can't figure out what's happening. Basically I have a program which tracks movement over several timeunits (each timeunit takes several timesteps). At each timeunit I write the results to a .txt file. However my program keeps crashing on the last … |
| | Sorry I"m a bit of a newbie but I'm trying to set up a form on my website and when I click the submit form I get an error that reads: [COLOR="Red"]Warning: mail() [function.mail]: SMTP server response: 554 The message was rejected because it contains prohibited virus or spam content … |
| | Im trying to make a game. Theres a player and he shoots bullets, and i was told whats wrong is it is making a shallow copy instead of a deep copy even though i researched this i cannot completely understand it. This is my attempt however i know it is … |
| | good evening guys. I have a problem with my -simple- application. I have 2 forms (Form1 - Form2), i create an object in Form1 (Person type) and i want to get the values of data members when i focused to the Form2 and i press getPerson button. But how can … |
 | I have a 2D array with generated doubles. I need to write this array to a CSV file so that I can open it in Excel. Is there a method or function in C++ that allows for this to be done? I could do it manually, but it would take … |
| | I know there are several related threads, but a lot are more advanced than what I'm trying to do. I swear, I've looked at ALL of them, on many different forums. I'm in a 2nd year Java class in college, professor is not the best...I've read the book, Googled for … |
| | can any one tell me what is the advantage of using double linked list over single linked list in chain hashing during deletion and searching of the node??? |
| | This is my code to hash [CODE]class hashing { private static $algo='$2a'; private static $cost='$10'; public static function unique_salt() { return substr(sha1(mt_rand()),0,22); } function hash($password) { return crypt($password,self::$algo.self::$cost.'$'.self::unique_salt()); } public static function check_password($hash,$password) { $full_salt=substr($hash,0,29); $new_hash=crypt($password,$full_salt); return ($hash==$new_hash); } }[/CODE] This is my login page [CODE]require("hashing.php"); $password=hashing::hash($_POST['txtPassword']); $checkPassword=mysql_query("SELECT * from … |
| | I'm completely new to PHP and I'm using dreamweaver. I'll be displaying a list of names but I want its background to stretch as long as the list of names. Something like the middle portion of this site - [url]http://library-online.org.uk[/url] I can't really describe it well and I don't know … |
| | Hello In My Visual C# 2008.Its References has not Direct show in .Net Reference . Tell Me how I can Install Direct show library in c sharp.net |
| | Hello i have created a form that has a combobox.the combobox displays the products.how can i add a selected product into a listview????? |
| | I have found this code for using control array in VB.net, but this only works when I place text boxes on form, whereas in my case within tab control i have created group boxes and within group boxes there are a number of text boxes which i have used for …  |
| | Hello!I'm new in this business(c learning ),for a month or so.I'm trying to learn C and so far i think i'm doing well.I have a friend who's helping me and giving me tips...the last time i meat with him he gave me a task:i have a garage with 3 floors(1,2 … |
| | [CODE]import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Calendar; import java.util.GregorianCalendar; public class CheckIn{ Date today; void getArrivalDate() { DateFormat df = new SimpleDateFormat("dd/MM/yyyy"); try { System.out.print("Enter Date in dd/mm/yyyy format: "); String d = Keyboard.readString(); today = df.parse(d); df.format(today); } catch (ParseException e) { e.printStackTrace(); } } void … |
| | I scripting chating program in python... And i'm on chating program scripting auth with mysql. But no know how to script authentication on python-mysql. How to script chat auth program for chat with python-mysql. -- Sorry with English language. |
| | Guys, I’m trying to integrate libssh2 libraries(windows version libssh2-1.2.5) with Dev-C++( v4.9.9.2). The OS is Windows XP SP3. I’m facing the following error when I compile the test file ssh2_exec.c (built in example) file. Compiler Output: --------------------- [Linker error] undefined reference to `libssh2_session_block_directions' [Linker error] undefined reference to `select@20' [Linker …  |
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