Software Development Forum

Hey guys i want to pick up a string from cmd . I am using C language and IDE as codeblocks. Basically i want to firstly ping an ip address and this i will be doing by simply writing "system("ping <ip address>")" . Then on console i will get the …

reason behind gaining popularity of c++ over other programming languages

Hi, I'm using a serial port (module (B)) which has a default vDataReceivedEventHandler. This handler is connected through a 'callback' delegate to the calling module (A) which module (A) instanciates the serial port module (B). If I create a byte array in module (A) then the delegate passing data from …

class Frame(Widget): def __init__(self, master=None, cnf={}, **kw): what is the meaning of **kw in this function, and what does it represent?

What is the difference between displayClassA and DisplayClassb? When creating classes should i put them outside of the Stuff Class or insisde? What's the difference? using System; using System.Collections.Generic; namespace Empty { public class DisplayClassA { public DisplayClassA(){Console.WriteLine("This Class is outside of STUFF");} } public class Stuff { public class …

hello, before people start saying what have i tried, i have not got a clue where to start if i'm honest with you and was wondering if someone could point me in the right direction. i need to create an application which stores information about people(age,name etc),should also be able …

NO ONE SHOULD COPY THIS PROGRAM, ITS PLAGIASISM AND IF COUNT WILL RESULT IN AN AUTOMATIC ZERO FOR YOU AND I, so dont be stupid. #include <iostream> #include <string> #include <fstream> #include <stdio.h> #include <stdlib.h> using namespace std; void occurrence (char[], int[]); void initialize (char []); void sorts( char[], int[]); …

I am trying to allow users to give their own combination of keys to trigger an event. For example, the user will be allowed to give a combination of keys in a textbox. And once the combination of keys are pressed some event should occur(close form2 or something like that). …

I am trying to validate two text boxes in VB 10 Express. The first validation (parts) is working as desired, and the form will not proceed to the next step until zero or a positve number is entered. The second validation (labor) is not working as I would like. If …

Hello, I tried to use the textbox validation snippet available here - http://www.daniweb.com/software-development/vbnet/code/414248/textbox-validation# and Im getting this error. Please help :\ [IMG]http://i45.tinypic.com/9zxbvt.png[/IMG] Thank You

I was wondering if there were any good books or tutorials on how to use controls in ASP.net or Windows controls. (such as WinForm combobox, ASP dropdownbox, gridview, etc.) I remember in VB6.0 having a book that went over how to use many of the basic controls. But i don't …

How to Insert, Delete and Update Data in a Datagridview using MySql as the database? There is a textboxes and button that adds data in the database and i want it to be refresh the datagridview. Can someone give me the code? thanks!..

Hi Everyone, I've been working on creating this code for a project I've been working on but I can't seem to get it to work. I'm creating a service class that I can then pass to a client class that will read a list of cities that ends in a …

Hi guys, ive got a datagridview populated, in a column of names, in a textbox i want to write a name, and on btn click i want to check the DGV for that name, can someone point me in the right direction please what i have so far, but i …

I have a data set like this data=[{u'a': u'D', u'b': 100.0, u'c': 201L, u'd': datetime.datetime(2007, 12, 29, 0, 0), u'e': datetime.datetime(2008, 1, 1, 6, 27, 41)},{u'a': u'W', u'b': 100.0, u'c': 201L, u'd': datetime.datetime(2007, 12, 29, 0, 0), u'e': datetime.datetime(2008, 2, 4, 6, 27, 41)},{u'a': u'W', u'b': 100.0, u'c': 202L, u'd': …

Hi all, I have some data in the file, which I want to store in the following format : 23 345 9.8 25 457 9.0 11 237 8.3 86 32 2.3 and so on..... I want to store this data in in some data structure, and later I want to …

HI, I buy a SNMP board for my project and i got some problem to understand SNMP code with VB, Can somenone help me?, i got this code under another project, and i want to use it in my project but, when i copy and paste it in my project, …

Hey everyone, I want to add action listeners to JButtons that were created dynamically by an ArrayList. Here is the code for the button creation. numOfCourse = 6; courseBtnArray.add(new JButton("Course 1")); gbc.gridx = 2; for (int i = 0; i < numOfCourses; i++) { gbc.gridy++; add(courseBtnArray.get(i), gbc); courseBtnArray.add(new JButton("Course " …

i tried this, [CODE] 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; namespace WindowsFormsApplication1 { public partial class Form1 : Form { int carX = 178; int carY = 161; public Form1() { InitializeComponent(); this.KeyDown += new KeyEventHandler(Form1_KeyDown); this.KeyUp += new KeyEventHandler(Form1_KeyUp); …

Hi all, I have an application with a ListView of remote files. I'm trying to implement a drag-drop of these files between my application and e.g. windows explorer. I have an object implementing IDataObject used for the DragDrop operation and the files are passed in a string[]. The problem is …

Group, I'm working with a ListView box for the first time. I've figured out how to populate it with data from a database. I now want to click one line of that ListView and have it return each of the five cells from that line into 5 textboxes. I've written …

Hi all. Using VB6: I have an application in which I am programmatically populating a datagrid. When I first drop the datagrid on my form, it has 2 columns by default. I can add further columns to them but I wanted to know if there was a tidy way of …

Hi group, I've been playing with a ListView and I'm struggling to get it to populated with info in a database. I'm hoping you may see something in my code that is creating the error. Dim con As New SqlConnection Dim cmd As New SqlCommand Dim rdr As SqlDataReader = …

Group, I'm declaring a variable in one form that I need to make available in a second form. My code in Form1 looks like this: Public Sub FuncKeysModule(ByVal value As Keys) Select Case value Case Keys.F5 Dim searchtype As Integer If txbPartNo.Focused = True Then Popup_PartNumbers.Label1.Text = "Enter the beginning …

Hey folks. I'm hoping I can get some help here. I have to make this program to play the game paper, rock scissors. I am having a few issues with the program. 1.) I dont think i am using the rand() correctly 2.) After entering your choice for Paper Rock …

Write a program that performs the least mean squares optimization. Given a large collection of data of the form (x0 x1 x2 x3 d), your task is to determine w0 w1 w2 w3. The LMS technique finds these weights by starting with some assumed weights, such asw0=w1=w2=w3=0, and finding the …

#ifndef TINYVEC_HPP #define TINYVEC_HPP #include <iostream> #include<iomanip> using namespace std; template<typename T_numtype, int N_length> class TinyVector { protected: T_numtype data[N_length]; public: ////////////////////////////////////////////////////// // Constructor ////////////////////////////////////////////// TinyVector() { } ~TinyVector() { } TinyVector(const TinyVector<T_numtype,N_length>& x); TinyVector(const T_numtype & initValue); TinyVector(const T_numtype x[]); TinyVector(const T_numtype & x0, const T_numtype & x1); TinyVector(const …

I would like to know what is the difference between dot notation and using square bracket.

Hi I got some trouble with my program and I need help. this is the code: public void actionPerformed(ActionEvent arg0) { Object source = arg0.getSource(); if (source == Button1) { System.out.println("Player has choosen the button: " + "button1"); String EP = JOptionPane.showInputDialog("Please enter your file location"); String Path = EP; …

I'm still a bit of a newbie and have what is probably a minor issue, but for some reason I can't wrap my mind around it. I have a program that does a whole bunch of stuff to text from an input file. The input looks like this: MArch 9, …

If any one can help me please to answer this questions please: 1. What is the difference between this.dollars and otherMoney.getDollars() 2.- What the return statement of this method is returning. 3.- How this method would be called from the main and give an example Thank you in advanced. // …

So I am working on a problem and have a bit of an issue that I can't seem to figure out and would like some guidance. I have string input coming into my program via fstream. Its a bunch of sentences where I have to cout it in such a …

# Login form coding # I have created a login page using Visual Studio 2008. I have the full coding but don't know where to place it. I have a addnew user link where I must add information about password and user name and check this information in the database.

If there is a String Buffer, and a String Builder based on array technology, why then is there no equivalent mutable data type based on a Linked List? Or is there?

note player is a space ship. in player class i have set up collision so that player cant go above window and below. player class public void playerWCollision() { if(y < 0) { y = 0; } else if(y+height > Main.WINDOW_HEIGHT) { y = Main.WINDOW_HEIGHT-height; } } lets say player …

hi i have a database with a image(Binarycode) and i want to select that image and infomation i tryed like this but it says liki this OledbExpaession unhandled No value given for one or more required parameters. my code like this Imports System.Configuration Public Class Form9 Dim A As String …

Hi everyone! I am working on a custom control, and for the life of me I can't figure this one out. As of right now, all properties for controls that are settable in the editor I use this code: [Browsable(true), Description(""), Category(""), DefaultValue()] I fill in the blanks appropriately, but …

Hi.. I am trying to create question paper generator application in C# windows application with sql server as back end. Now I need your help to select the questions from database. Ex: User Selection like: Chapter selection from listbox then select 1 mark – 5 question 2 mark -3 questions …

how to read from txt file to array & how to omit heading in the txt file and store it to array

Whenever I want to delete row my excel file in c#. I have get error. I tried much much codes on the net but I can not solve my problem. Please solve my problem... Regards,

hi. i work on image processing.how can i convert my mfile to c++ code? i try with : mbuild -setup mcc -B cpplib:mfile a.m and matlab compiler give me cpp code but i can not run it. how can add lib & header file that it can run? is there …

In Assembly there's not going to be much insight on linked lists, B trees, arrays, etc. In fact those don't even exist at the bit level. Sure, they help solve some problems from all the way up to your compiled language syntax, but such symbols don't exist in machine code, …

Hello I have this: String price="10,00 €"; int num=2; int sum=Integer.valueOf(price)*num; System.out.println(sum); //Should print out AT LEAST 20,00 But note: That € sign can be $, €, £ or another AND it can come before or after the numeric float amount. What is the best way to do this? Thank …

Hi guys, i'm a little bit new to c# but someone asked me to make something for him, now was the question to make a Winform application, and you can insert 2 xml files, then read the xml files, and make a new xml file with the updated data out …

hello, i have a application, with sql database, now i want to backup every week, so i have code a but it gives error: "The process cannot access the file 'C:\Users\yogeishh\Desktop\Restaurant-Stock-Management-System\Restaurant-Stock-Management-System\DataBase\RestaurantStockDataBase.mdf' because it is being used by another process." can anybuddy solve this error?? my code is :: " Private …

I have searched tutorials, etc., on the subject of using flock but it seems like nothing gives a straight answer. I have a script for a guestbook which will allow users to upload photos. Everything goes to a MySQL database with the exception of the image which will go into …

hi .... im tring to insert a picture with some information to the database when i run the progaram it will display the bellow message NullRefaranceExprasion was Unhandle Object reference not set to an instance of an object. this is my full code is there is any mistake? Imports System.IO …

hi, i need to .show a window to enter the date of a record when it was recalled i have the following so far but its jumping the frmRecallDate.show line. Any help is appreciated Private Sub cmdRecall_Click() On eror GoTo ErrMsg: With rsRecalls If .State = 1 Then .Close .Open …

Hi I know how to make just numeric textbox, but the problem is that I wisch to enter in the text box wit 2 numbers and then search trough a database to recive just zipcodes. Lenny

hi guys, im a bit stuck here and wondered if anyone could help? what i want to do is, after the DataGridView is populated (this part works fine) is to do a calculation on 2 columns i.e column 2 column 6 1 2 2 2 i need column 1 and …