Software Development Forum

I am in desperate need of some guidance here. Any suggestions or ideas would be very much appreciated! Is it possible to have a relationship based on two columns? For example: The table "Parents" has columns: ParentID (PK) The table "Children" has columns: ChildID (PK) ParentID The table "Addresses" has …

Hey guys, As you can see below I am trying to add row of data to a table called tblOut. When i execute the code, it works without a single error message but the problem is I dont see any new record when i preview my table data. Can anyone …

What modules come builtin with your Python? Let's exclude the internal _ starting ones for this question. You know those? Are you sure? Good, because I did not! (Hint WindowsXP and Python2.72 has 27 builtin modules) Here the answer in code [CODE]import sys print('\n'.join(n for n in sys.builtin_module_names if not …

I know C++ well and have written some programs in it but when I look at a program's code,I can't understand it.I wanna know is there a place where I can learn to write real world programs?Sth like a C++ certification? thanks

Hello everyone! Please am developing a web application using vb.net with visual studio 2010 and .NET framework 4.0. its complete but i want it accessible over the network (LAN) so i have tried to host it on the local server (IIS) but i keep getting the following error message from …

Learning about Abstract classes and interfaces, is there anything else I have forgotten about? [B]Abstract Class[/B] 1.Cannot be initated. 2.Can have concrete methods. 3.Abstract methods with no body 4.A class extending the abstract class does not need to use all the abstract methods from the abstract class. 5.A class can …

hello all i have been writing the java code and new to C programing.I am very confused in point.i have the following code [CODE]#include<stdio.h> main() { int *ptr=50; printf("%d",*ptr); return 0; } ~ ~ [/CODE] why it is giving the segmentation fault.and when i print ptr then it gives value …

So I need to make a table where all the records in my ACCESS database will reflect. The table should be editable. the table should have the basic functionalities such as ADD, EDIT and DELETE. I also need to make a search where a user can type what he/she wants …

hi i am working on servlet using eclipse IDE .i have attached html form. I am unable to format drop down list. how to do it. how to align the drop down list.please help.

I am working with application for Excel sheets in vb.net My database is Sql server 2005 I am having around 8 lakhs of rows in my database and 64 columns. when I import a excel sheet for searching the Duplicate of excel sheet rows in database i get this Error …

I have made a single combo box and added it with table... Items are added from database. There are three combo box A , B AND C ... B depend on A And C on B. Now if i select anything from row one A combo box it will load …

I have application which contain textbox, 2 button and datagridview In text box user will enter query button1 click to display query result in gridview and Button2 to export data to excel My application is working fine But problem is when i again click button1 it also show the previous …

Hi, How to write into excel sheet using oledb connection or how to export dataset into excel sheet using oledb connection. Iam using console application in vb.net. If there are any alternate ways to write into the excel files from dataset.

I'm having an issue that I've been working on most of the day. I want to get the user name, then return it twice, but can't seem to get the variable right. Here is my code. [CODE]import java.util.Random; import java.util.ArrayList; import java.util.Scanner; public class mlab { // instance variables - …

hi everyoen i've a matrix array with some value, i want to shaw each of them in matrix type in my form, how can i do it? can i use DataGrid view for this? and if yes ... what is method..

[I]Hello all, I am looking for some help writing an application with the following attribuutes: An online retailer sells five products whose retail prices are as follows: 1. Product 1, $2.98 2. Product 2, $4.50 3. Product 3, $3.98 4. Product 4, $4.49 5. Product 5, $6.87 Write an application …

I have created an application that uses Microsoft.Office.Interop for Excel. I'm trying to implement both an OpenFileDialog and a SaveFileDialog. I got the OpenFileDialog to work, but I have run into a wall on the SaveFileDialog. Because when I get to the SaveFileDialog box, it lets me pick the location, …

Hi, I just started a C++ class and I'm already having troubles with some parts. The instructions are as follows: "Create a C++ console applications to compile the following statistics on a list of integers: • minimum value; • maximum value; • median value; • arithmetic mean; • variance (population …

simple Code Snippets to Convert Image to Byte Array and Vise Versa

This is a problem in a programming contest but I am stuck at it for the past two days Here is a link to the problem : [URL="http://www.techgig.com/codecontest_detail.php?type=advanced"]http://www.techgig.com/codecontest_detail.php?type=advanced[/URL] [CODE]void DrowningVillage(int gridSize,int villageHeights[][10],int origin[]) { int i=0,j,k=0,x=origin[1],y=origin[0],z=0,output1[100],Heights[10][10]; for(i=0;i<gridSize+2;i++) for(j=0;j<gridSize+2;j++) Heights[i][j]=1000; //For removing garbage values and for later comparisons for(i=0;i<gridSize;i++) for(j=0;j<gridSize;j++) Heights[i+1][j+1]=villageHeights[i][j]; …

This is my program, but it is giving me an error stating a Operator '*' cannot be applied to operands of type 'double[]' and 'double'. Can some one tell me how to fix this program. The Chart-A-While phone company provides service to six codes and charges the following per minute …

I'm new to VB.net and am looking for some advice. To start with I need to develop something that I can import 3 different csv files into and then once I've created a query then return my results in a datagrid view. I'm not sure where to start with how …

I have created a program that reads data from a file and stores it into a vector. The data looks something like the following: 48.698635 -0.000000 0.000019 1.000000 -0.004386 0.002192 // Step 1 48.583797 0.114838 0.100000 1.099997 -0.005061 0.001945 //Step 2 48.457909 0.125888 0.100000 1.199994 -0.005854 0.001883 //Step 3 ect... …

Hello, I have a very weird problem. I have been using ReadFile() for reading data from a device connected to the PC over USB. As the data to be read is received in chunks of 64 bytes, always, ReadFile() is called with 64 bytes to read. However, when i have …

Hi. I have a problem that I am tearing my hair out to solve. I am trying to transfer tens of thousands of records into a sqlite db using the script below. The script seems to run okay and I can see the db growing as it runs to some …

So I have a program scenario for a postman who carries out an experiment: 1. He has mailboxes numbered 1-150 all of which are 'closed' 2. Starting with mailbox 2, he 'opens' all even-numbered mailboxes, leaving all others 'closed' 3. Next, beginning with mailbox 3,goes on to 'open' every third …

i m using gettext() method in getting text from the form and pass it to the sql query to record in the mysql database. when i don't enter any string for textfield (for eg: phone no.) , i get sql exception error.. here is my sql query in the code.. …

How do I invoke the int operator < instead of the int* operator < ? [CODE] vector<int*> pVec; std::sort(pVec.begin(),pVec.end(), /*????*/); [/CODE]

hi, i have this code: [CODE]#include <iostream> #include <fstream> #include<cstdio> #include<cstdlib> using namespace std; int main (char argc) { for(;;) { fstream myfile; myfile.open("example.txt"); cout << "1: Write" << endl; cout << "2: Read" << endl; int n1; cin >> n1; if(n1 == 1) { string n2; getline(cin,n2); myfile << …

OK geniuses! I have to use python 2.4 and 2.5 here and my programs ideally work with both versions. This area of code was working in 2.4 and 2.5 versions until replacing my computer. Python did not get ported over so I reloaded with new downloads from the web. (both …

The following code is for a standalone applet that calculates a shipping rate based on a selected shipping method. Normally, the program would read the total price of purchases from the website but for the sake of this exercise, the user will enter the price on the applet. [CODE=java]import java.awt.*; …

So I've been trying to convert CSV files to XLS. However, this line of code keeps giving me problems: [CODE] oExcel.SaveAs FileName:=FilePath_XLS(TableName), FileFormat:=xlNormal[/CODE] The FilePath_XLS returns correctly... I just can't figure out what's going wrong but it will not execute..

Hi! good morning! I am writing a program, that uses interaction between 5 processes(using signals), I am trying to use in one of them- gets command to get a command from the user. And it seems that gets isn't working.. Maybe one of the other processes interrupts the work of …

Hi All, I am new to XML,XSLT. I have been assigned to task of Generating HTML pages based on the XML file & the condition is No Hardcoding of Nodes and other details. My XML file is of the below struct: Node inside Nodes , and those nodes would contain …

I am getting this error when i try to connect to the server... Hot to rectify it... "This version of Microsoft SQL server Management Studio Express can only be used to connect to SQL Server 2000 and SQL Server 2005 servers. (Microsoft.SqlServer.Express.ConnectionDlg)

Still working to figure this stuff out :) My question is, is it possible to set a combination of columns with a unique constraint? For example: [CODE] ColumnA | ColumnB ----------------- Value1 | Value2 <- OK Value1 | Value1 <- OK Value2 | Value1 <- OK Value2 | Value2 <- …

Please Help me to extract the inner table to the outer table so that it will not have table within table because it is not good data.. thank you Raw Data [CODE]<item> <pre> <table width="100%" border="0" cellpadding="2" cellspacing="2" bgcolor="#eeeeee"> <tr> <td><p>"Gratitude for the abundance you have received is the best …

My program includes a code segment as following: [CODE]for (int j1 =0; j1<2;j1++) { for (int j2 =0; j2<2;j2++) { System.out.println("j1="+j1+"j2="+j2+" "+temp1.get(j1)+"----"+temp2.get(j2)); if (temp1.get(j1)==temp2.get(j2)) { System.out.println("find match"); } } }[/CODE] The program prints out sth like j1=0j2=0 7698380----7698380 the difference is 0 j1=0j2=1 7698380----7726365 the difference is -27985 j1=1j2=0 7726365----7698380 …

Same problem but with a file !! I have a file on a web site read by an applet. This file is now "corrupted". The applet can't read, the editor of this fiel can't read ! I use serialversionids for my own classes but I don't subclass all the classes …

hey ive mostley got this working however im not sure if im reading the binary file correctly because for some reason its playing up, anyone able to give it a look over ? also i know in my sort function, there is an issue with the comparing of the values …

I am trying to install SOL Server 2008 but, I have not yet been able to get Windows Powershell that is compatible with Windows Vista Ultimate ...... Please help !!

Hi all, I am generating a html report displaying the records. In that report their are 10 rows and 4 columns. In 4th column i am adding the button. Now i want to use button click event i.e onclick() . 1) how i call the javascript function/Javascript. 2) how can …

hi, why explicit cast is *not* required here? [icode]static Float f3 = new Float(5.5); //causes compile-time error b'se, by default floating-point literal type is double[/icode] but requires here, [icode]//static Short sh1 = new Short((short)12); static Short sh1 = new Short(12); //causes compile-time error b'se, by default integer literal type is …

Hi. I have a datagridview on a form that displays values generated in a for loop when a user presses a button. Here's the code. [CODE] Dim i as Integer Dim Period as double Dim rate as double Dim interest as Double Dim amount as double Dim payments as Double …

Hi everyone; I need some help Im want to write a WIndows service C# app which will check some urls and choose the one with the lowest ping (the one with high data transfer speed) stream data from that server, and alse check all other servers and write in log …

Let;s say I declare [CODE]arr db 1,2,3[/CODE] How do I know arr's size afterwards? is there a command for it? I know there is something about arr-$ or something that I can declare in the ds segment but I think it works for strings only...

Hi all, i'm a student. My Final Year Project supervisor want me to develop a software for wholesale industry, and he want the software can update the data from time to time Example: A company having 2 Branch in B and C place While B place made a sale! the …

Dear All, I am new to VB2010 and writing a MDI child form to open another form as dialogbox, then pass a value back to the MDI child form, the value is successfully passed back to the MDI child form but it can't be shown on a text box, my …

hi, I am trying to start a new cmd from a java program.... I have been able to do it successfullt but I alse want to write to that new cmd from that very java program.. is it posible????

[code]#include<stdio.h> #include<conio.h> void main() { char gender,Mar_stat; int age; clrscr(); printf("Enter your Marital Status "ma" or "um":\n"); scanf("%c",&Mar_stat); if (Mar_stat == 'ma') { printf("Enter your Gender And Age :\n"); scanf("%c %d",&gender,&age); if (gender=='M' && age >= 30) { printf("You are Insured"); } else { printf("Sorry"); } getch(); } } [/code] …