Software Development Forum

i have a database, i want to make it connected in vb.. tell me the coding for editing any record.

As the title says i am trying to click this button... [URL="http://gyazo.com/5776f257d554f0b590944bc6474e1db3.png"]Pic[/URL] (The save one) on this webpage... [url]http://upload.youtube.com/my_videos_upload?restrict=html_form[/url] I have been trying various permutatuons of this [CODE]Dim j As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("BUTTON") For Each elem As HtmlElement In i elem.InvokeMember("click") Next[/CODE] With little luck, i also tried to find …

Hey guys, i`m experiencing weird problem with an visual activeX control. I`ve created simple test winforms application on .NET 3.5 using that 3rd party activeX control. It works fine on my dev PC having VS 2008 installed... But when copy it on a machine without having VS installed on it, …

I have to draw a Circular gauge using Java Graphics. Somewhat similar to the attached image, the circular gauge without the black border as in image. I tried to use two methodologies but none of them is working perfectly Firstly, I tried to draw everything using Java Graphics and then …

Hi everybody, i cant seem to make my program to pass the first user input. I know i have to put it inside a do while loop, but everyone of my attempts results in an infinite loop. I'm also aware that i should use a bool to make it work, …

Hey, I have a class called Greyhounds. In the variable declarations, I have: [CODE]public Random randomizer = new Random();[/CODE] I know how to use random.next and everything. Here's where the problem is. The greyhounds class has a method Run(). [CODE]public bool Run() { int moveForward = randomizer.Next(4) + 1; currentLocation …

What happens when an exception is thrown from within a new thread of execution? How do I catch it? Must it be within the same thread? Also, what is the proper way to update a control residing on a form, from within a new thread? I think it would be …

Hi, I am doing Question 4 of the Project Euler puzzles. I wrote some code which is supposed to find the biggest palindrome from the product of 2 numbers. However, this always prints out 900099. I cannot really find any errors in this code, but if you do, please let …

How do you pass an unknown object into a function and save it? I'm trying to have a set and get function in a class I'm creating that can hold and return any object. Here are my attempts so far: [CODE] void* holder; void setHolder(void* object) { holder = object; …

What am i missing in my code. Because it is not working. According to visual studio, the istartd and iendd are unassigned local variable. [CODE] Console.WriteLine("{0, 40}", "Sphere Surface Area Evaluator"); Console.Write("\nEvaluates Surface areas of spheres of various diameter"); do { try { bError = false; Console.Write("\nEnter the starting diameter …

Hey guys, I'm doing a class called "Greyhound" (I need to do a greyhound race for a book) Each greyhound has a corresponding picture box because they race along a horizontal track. So, my question is, let's say you have an instance of PictureBox: [CODE]PictureBox MyPictureBox = new PictureBox();[/CODE] What …

[CODE] template <class T> class Llist //.... //Iterates to position and sets pointers to node at position-1 and position. template <class T> void LList<T>::iterate(Node<T>*& previous, Node<T>*& next, unsigned short pos) { //some code } //Start Iterator template <class T> inline Iterator<T> LList<T>::start() { //some code } template <class T> class …

Hey, I am doing a 'Helicopter'-style game for a project where the player holds the spacebar for the main sprite to go up, releases to go down. Objects come from the right side of the screen at random y-cords moving until they hit 0 on the x-cord. The player must …

In a unix pthreads based app I'm working on, I have objects of a particular class (call it class foo) being created in multiple threads. I need a specific public method of class foo invoked at or after 60 seconds of the object coming into existence (it is not imperative …

Hi All if anyone could help me that would be great! currently i have an array which enables a user to input: Student Name Maths Mark English Mark Science Mark Array: StudentArray(25,3) i have this array output the data to a listview box. Column 1: Student Name Column 2: Maths …

Good day.. I'm having problem on how to store or create a table on my database using vb.net i'm having hard time to create a table on my existing dbase here my code; coould you tell me what's wrong!!! Dim ntable As OleDb.OleDbDataAdapter Dim mtable As New DataTable con.ConnectionString = …

Good day. I am having a trouble on how to update my reocrds on my 2 tables. 1 table is sample and the other table is tbl_educ. my sample table which has a pk of emp_id while the tbl_educ has a field of emp_id they are related by one-many relationship. …

I have just started learning Basic, and i know you can create command butons from the virtual environment, but how do you create (and, more importantly, let the user drag around) them from code?

I am working on making a 'safetype' abstract class, which will have a complete set of pure virtual operator overloads to help make sure that a class inherited from it is safe to pass to virtual any function. The problem is that I don't know the syntax of a pure …

I'm learning C++ and just finished a tutorial on pointers. I understood what they were and how to use them but I do not understand when they should be used. When would it be practical to use a pointer to get a value instead of using the value's name? For …

I am working on making an error header file and this is what I have: [CODE]#include <stdio.h> #include <stdlib.h> #include <iostream> #include <sstream> #include <string> #define VANARGS(n1,n2,n3,n4,n5,n6,n7,n8,n9,n10,n11,n12,n13,n14,n15,n16,n17,n18,n19,n20,n21,n22,n23,n24,n25,n26,n27,n28,n29,n30,n31,n32,n33,n34,n35,n36,n37,n38,n39,n40,n41,n42,n43,n44,n45,n46,n47,n48,n49,n50,n51,n52,n53,n54,n55,n56,n57,n58,n59,n60,n61,n62,n63,N,...) N #define __VA_NARGS__(...) (VANARGS(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)) #define ERROR(...) (\ (__VA_NARGS__(__VA_ARGS__)==0)?"NONE":(\ (__VA_NARGS__(__VA_ARGS__)==1)?(_1(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==2)?(_2(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==3)?(_3(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==4)?(_4(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==5)?(_5(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==6)?(_6(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==7)?(_7(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==8)?(_8(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==9)?(_9(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==10)?(_10(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==11)?(_11(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==12)?(_12(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==13)?(_13(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==14)?(_14(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==15)?(_15(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ …

Q: A local company has the following monthly charges for snowclearing services: $250 for 0-5 visits $250 + $55 for each visit over 55 13% tax is to be charged in each case if previous balance is not zero, intrest of 4% of that balance is to be charged. theres …

I try to make an exercise that involves classes. I reached until this point [CODE] #include <iostream> #include<math.h> #include<iomanip> #include<conio.h> using namespace std; class Cplx { double re, im; public: //constructors Cplx(double x=0, double y=0); Cplx(const Cplx& z); //accessing the members double real() const {return re;} double imag() const {return …

I'm trying to close and application using C# and ASP.NET. I've tried system.windows.forms.application.exit() but it just refreshes the screen. I tried Environment.Exit(0) but that just ended the application and returned an error in the browser. Please help anyway you can!! Thanks!

I've been having a hard time understanding classes but i've got it mostly down(atleast I think) well below in the code I overloaded the + operator for my class called clr which uses strings, my problem is on lines 59 and 61(strcpy_s(tmp,len,other.buffer);) when I strcpy to tmp the word is …

Hi, I'm looking for a good book on Qt 4 programming, I checked both chapters and amazon but couldn't locate a Qt book with favorable reviews and was wondering if the daniweb members knew of a good text...Thanks in advance. Gerard4143

Hello, I have a txt file which contains data in this format: [CODE]cross-sectional study 21225114.txt prospective cross-sectional study 21225178.txt cross-sectional study 21225178.txt retrospective cohort 21225558.txt retrospective cohort study 21225558.txt cohort study 21225558.txt[/CODE] This shows what type of study each of the txt files have. Problem is some have more that …

Any consensus? I see advantages and disadvantages to both. For a socket listener, a background thread would be good I would imagine, if the server is attempting to close, it obviously does not need or want to accept connections and any connection that is in the process of starting should …

I have created 2 menus using JForms. I have two buttons in the 1st menu (menu1.java) I want to go to the second menu (GUI of menu2.java) whenever I press button 1 in menu1.java. How can I do that. What should I write in the actionListener func for button1?

hi... i have given a code snippet below... though i check for nullability before i do the actual processing... it still throws an unhandled exception..... is there a way to handle this other than filling my code with try catch blocks.... [CODE]using System; using System.Collections.Generic; using System.Linq; using System.Text; using …

Hello everybody, For a school assignment I need to save images to .ser files. Could someone explain me how i get it succesfull. The program itself creates a .ser but the content is useless (¬í NUL ENQ). Thanks in advance :). This is the method i came up with: [CODE] …

[code=c] void Assembler :: pass2(ifstream &inHandle, ofstream &outHandle) { outHandle<<setfill('0'); while(!inHandle.eof()) { inHandle.getline(src_line,50); //declerative or imperative statement if(toascii(src_line[0])>=48 && toascii(src_line[0])<=57) { breakStatement(); outHandle<<address<<")\t+ "<<mnemonicCode<<" "<<regCode<<" "<<setw(3)<<operand<<"\n"; } else outHandle<<"\n"; } } void Assembler :: breakStatement() { int i=0,j=0; char oprCode[20],oprClass; ifstream in; //initializing all variables strcpy(address,NULL); strcpy(mnemonicClass,NULL); strcpy(mnemonicCode,NULL); init(oprCode); regCode='0'; …

Hy, I want to use some ExpandBar items in my UI, like those in SWT. I am currently using swing and unfortunately I did not find anything like this yet. So, do you know the class in swing that I can use ? ... or any other advice is greatly …

I am making basic project for "Computer simulations of polymers and biopolymers" using Monte Carlo simulation and I currently have access only to ASUS eee PC netbook. Could anyone run attached program on a faster hardware for input data [ICODE]100 50 50 1000000[/ICODE]. Last part of data is number of …

Can anyone please give me a guideline on how to code the following? I have an MFC application which should call on a timer basis a python script from command line and read the ouput of that command line. I thought of using CreateProcess, but i have no clue of …

Hi i keep getting an exception when i'm trying to update table values within a database. the exception is below but i dont change from datetime to varchar it always stay as datetime. is there any other reasons why this is happening ? "The conversion of a varchar data type …

I try to make an exercise from a book and I have only one error. On this line [CODE]cin >> t;[/CODE] it writes me that "more than one operator >> matches this operand" I know that defined this operand before in another way but I don't know how to solve …

Hi pythoners! :) My question is very simple (the answer too, i hope): how to display files in a TreeCtrl? I've tried to use it, according to an example i've found on the web, but it displays only folder, subfolders. No files... I'll show you the portion of code i …

Hi I am trying to arrange the patients according to their condition that is Serious(S), Routine(R), Critical(C), and Expectant (E). I have the method but it is not implementing correctly as the program runs and builds successfully but it does not arrange them in that order any help would be …

What are the purposes of using ifndef and define? When should it be used and why? I made a simple program in class just to go over the basic of Friends in classes but it wouldn't work and I was getting errors all over even though I went through it …

the output should be: Triangle Drawer Enter the size of the triangle: 0 The size is out of range. Enter the size of the triangle: 11 The size is out of range. Enter the size of the triangle: cats An invalid value was entered. Enter the size of the triangle: …

Hi there, I know there are some changes between Python 2x and 3x, and I know this is probably due to the changes with how 3x handles unicode and binary but I dont know how to make it work properly in 3x. In 3x my code returns the value I …

I am fairly new to c++, and I would like to know whether or not I need to have the library files present on the system to run a compiled program that used the library files to compile on a different system. Thank you.

I'm writing a program in python,tkinter and I need the text on the button to update... is there a simple way to do this?

I have a few .reg files that I would like to be able to call from my app. How can I call these .reg files from an OnClick event? Is there a better way that I can do this?

[CODE] int main(int argc, char* argv[]) { std::cout << argc << std::endl; } [/CODE] The code above will print a number depending on the number of arguments added to it. However I am writing a game in c++/python and I need the program to accept a integer argument that will …

hi all.. i want to convert decimal to binary.. best regards..thanks.

hello all, i am having a real hard time tracing down a logic problem and am looking for help. this program just does a binary search on a sorted list and returns a record. now it works for records that exist. however, i want it to continue searching until an …

I am getting a "misplaced break" error from this part of the code,the following is a part of the mfile function,the while loop should break if the entered string in temp equals to the one in exit....I don't know why it shouldn't work,any help?Thanks. [CODE] ofstream myfile; myfile.open(fn,ios::ate); cout<<"File has …

I have a question and here is what I am trying to do. Generate an array of 20 random numbers between 1-100 Display them as generated Sort them into descending order (Starting with the largest and going to the smallest Display the results I have started writing the code but …