Software Development Forum

i try to fetch the data from the database and display text in the dropdownlist i got the error message `'dropdownlist' has a selectedvalue which is invalid because it does not exist in the list of items parameter name value` when selectedvalue does not exist in the list of items …

This program is supposed to run through the menus to eventually display the area or volume of a shape depending on the user's menu choices and input. However, it won't run the final menu and I'm not sure why. There aren't any problems when it goes through the debugger, it …

would it be possible to right a program that would create a sort of virtual audio device that would show up under playback devices and that i could set as default, the purpose of this virtual audio device would just be to redirect the audio stream to a different device …

Hello, I'm trying to program a Caesar Cipher, but I keep getting weird errors. My input is not being handled correctly. I have no idea, i've tried different variations, but it does not work, here is my code. import java.io.*; import java.util.Scanner; public class CaesarCipher { public static final int …

How can we use + operator in overloading?

textpad 5 generated an "unexspected and unrecoverable error" with a large data file of mine and at first i though it was due to length. (1280 lines, 188kb) but there are much bigger data files involved. (5 to 6000 lines and >30000 characters in one) it gives out e dmp …

This is the function : node* remove (node* p_tree, int key) { if ( p_tree == NULL ) { return NULL; } if ( p_tree->key_value == key ) { // the first two cases handle having zero or one child node if ( p_tree->p_left == NULL ) { node* p_right_subtree …

Hello, Can someone help me understand what is (if it is) the difference between `string* myStr` and `string *myStr`? Or any other type of definitions like that: `int* myValue` vs `int *myValue`, `char* myChar` vs `char *myChar`. The position of the "star" is confusing me. I only used pointers like …

I want to read data from database. the data is in arabic language. the character set of my database is AL32UTF8. when i try to retrive the data i get "????" please do reply how to solve this problem this is the code public static void main(String[] args) { // …

I'm programming Blackjack and all is well, except after I type 'y' to hit again, the program terminates even though total is still less then 21. So my while statement is doing nothing? package com.github.geodox.blackjack; import java.util.Random; import java.util.Scanner; public class Blackjack { private static int total = 0; private …

i am using turbo c++ 3.0 but it has not good graphics.i try visual studio and dev c++ but its syntax is changed. i want a compiler that has same syntax like turboc++. plz name it and give me a dowload link for 64bit os.

I need to code a program to compare the datas in .csv file (.csv file is an excel file which will be seperated by , instead of cells by saving in.csv format). I've coded it fully and the required outout is also obtained. But i need a modified version of …

Hi everyone, I am working on an small inventory management application for learning about swing and i am using jTable to display the contents of MySql table i have to refresh the contents of my jTable instantly whenever i Add an new customer but i couldn't do it because i …

hi guys i just wanna ask why does my program gets an error after i tried changing the formborder to none, the error i get is about the 'Windows' and 'Drawings' not being a part of 'System.Windows.Form.TabPage', what might be the problem of this?

I need help with a program for school. I am a very novice pascal programmer. I need to allow the person using the program to add a record and then search for it and view it. Currently, whenever I add a record via the program and try to search for …

Hi all, I'm new to this site so please forgive my ignorances. I am a beginner at Java and I've been assigned to do a project about an Airline Reservation System. So the objectives required are: Reserve the ticket Cancel/Confirm Reservation Book the ticket Change / Cancel Booking Waiting List …

First, to explain what I want to do: I have a folder structure like this: BSDS300\images\test\ -which contains JPEG files, and some other files(only .jpg files are of interest) BSDS300\human\color\ -which contains many folders, in which I have .seg files with the same name as the .jpg file Example: BSDS300\images\test\3096.jpg …

Im trying to average the user input by a string of numbers, It prints out without a problem but the output is very wrong Enter some numbers: 0,4,3,5 48.0 import java.util.Scanner; public class avg { public static void main(String[] args) { System.out.println("Enter some numbers"); Scanner in=new Scanner(System.in); String nums=in.nextLine(); double …

Hi all , Im starting to learn visual basic and I have a question if all dont mind to answer me , I need to know and identify each individual component for this vb commands ? This = That.theOther (something) Much appreciated

cmd = new SqlCommand ("select beggining_school, end_school FROM Student,student_weekend,Weekend WHERE Student.ID=student_weekend.studentID AND student_weekend.WeekendID=Weekend.ID ", con); I just want to say that i don't have any problem concerning my code functionality. I would just like the design to be like the above example.That is, I dont'want my whole sql expression to …

I have a datagridview (bound) which works fine as long as the users "accepts" each cell they type in by pressing the tab key. However, when they click in another cell before pressing "tab", the value is visible in the cell on the screen but is not actually there. What …

Hey, DaniWeb! I need your opinions. I'm looking to expand my skillset, particularly in the Windows department. On a scale of "Eh, maybe later" to "Do it! Do it now!" what is your opinion on the importance of learning PowerShell as opposed to another life skill like Haskell, Mandarin Chinese, …

Dear Kind-Coders, I am trying to learn to use boost::shared_ptr to manage the lifetime of a DLL, but I am having a type conversion problem whilst setting it up. Please see the following code: #include <boost/make_shared.hpp> int main() { { class CMyClass { public: CMyClass() {} ~CMyClass() {} int MyInt; …

Well I just started C++ and I'm trying to run the basic "Hello World" program. But it didn't work i tried EVERYTHING i even clicked the delete button. But NOTHING I don't know how to run a C++ program. ;( So can you please help me? ;)

its maybe a really dummie question but I was wondering is there any way to create a file (like txt) that the program can use its data but the users can't access it ? sql is an option but the data aren't large enough to be used. is there any …

#include<iostream> using namespace std; int main() { int testcases,freq,amplituide; cin>>testcases; for(int i=1;i<=testcases;i++) { cin>>amplituide>>freq; for(int x=1;x<=freq;x++) { for(int j=1;j<=amplituide;j++) { cout<<endl; for(int jj=j;jj>=1;jj--) cout<<j; } for(int k=(amplituide-1);k>=1;k--) { cout<<endl; for(int kk=k;kk>=1;kk--) cout<<k; } if(x<freq) cout<<endl<<endl; } } return 0; } Inline Code Example Here

Hi, I recently developed a program which has source and header files in vc++! what I want to do is convert the same in C#. I got the idea of source files but how to import/use header files in C#(I want seperate file for class creation/ data initialization like header …

In function : node* insert_in_tree(int number,node* p_tree) { if(p_tree == 0) { node* newNode = new node; newNode->num = number; newNode->p_left = 0; newNode->p_right = 0; return newNode; } if(number < p_tree->num) { p_tree->p_left = insert_in_tree(number,p_tree->p_left); } else { p_tree->p_right = insert_in_tree(number,p_tree->p_right); } return p_tree; // refering to this } …

Help make 2 pascal programs 1.Ar random function to get two numbers from 1-6 and 1.no 2.10-20 and to display numbers from the first to 2 and the number of squares. 2.Ar random function to get two numbers from 2-5 and 1.no 2.15-20 and to display numbers from the first …

hay guys iam new to c++ programming studing for c++.com iam getting to a point that i wirte a program and it doesn't run and i can't find anything realted to it , to know where is the problem so that's the program // cin with strings #include <iostream> #include …

public partial class FrmEndDateSummaryOnLoad : FrmErpSimple { List<string> mVehicleRemainderList; //SMdiForm mMdiParent; string mCurrentUserId; string mCurrentPeriodId; DataTable dataTableVehicleID = new DataTable(); DataTable dataTableVehicleNextKMS = new DataTable(); public FrmEndDateSummaryOnLoad(CErpDataConnection pErpDataConnection, CUserLoginInfo pUserLoginInfo , CRegional pRegional) : base(pErpDataConnection, pUserLoginInfo) { InitializeComponent(); } protected override void OnLoad(EventArgs e) { mCurrentPeriodId = mUserLoginInfo.GetPeriodID(); mCurrentUserId = …

Me.ToolStripMaintenance.Font = New **System.Drawing**.Font("Bookman Old Style", 9.0!, **System.Drawing**.FontStyle.Regular, **System.Drawing**.GraphicsUnit.Point, CType(0, Byte)) Me.ToolStripMaintenance.Image = CType(resources.GetObject("ToolStripMaintenance.Image"), System.Drawing.Image) Me.ToolStripMaintenance.ImageAlign = **System.Drawing**.ContentAlignment.TopCenter Me.ToolStripMaintenance.Name = "ToolStripMaintenance" Me.ToolStripMaintenance.Size = New System.Drawing.Size(90, 70) Me.ToolStripMaintenance.Text = "&Maintenance" Me.ToolStripMaintenance.TextImageRelation = **System.Windows**.Forms.TextImageRelation.ImageAboveText heres a sample of my code with those error, can u help me identify what to do to …

What must one do to increase the speed and efficiency at which one learns and develops prorams in python(or in any other language)?

I have been working on this program for about a week now and I think I have it down pack. The issue I am having when I ask the user at the beginning of the game (human vs computer) everytime I run the program it asks me what my name …

i am trying to recieve input from external text editor using python's `subprocess` but I am not sure why i am getting the error diff = subprocess.Popen('open(os.path.join(os.getcwd(), "foo.txt") "w")', stdout=subprocess.PIPE) pr = subprocess.Popen(sublime, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True, stdin=diff.stdout) pr.wait() if pr.returncode == 0: msg = pr.stdout.read() print msg er = pr.stderr.read() …

I am new to socket programming.I am trying to send datagrams containing image data(jpg) from one host to another continuously.I want to use C++.I have not came across detailed steps on how to achieve this for images anywhere.can somebody explain or link me to such tutorials?

It will sound like "Meh, bring me it, naw!". But it isn't as it seem to be. Do any of you, good people, know a method by which total novice (aka. noob). Could use any type of programming tutorial, program, scratch or anything. Which could make PNG shot of 3D …

Hello guys! I am trying to build app with this requirements: *We need a class Person with properties Name, Address and Gender, and with the ability to Save and Load all properties to/from local file system* I am having trouble to make method that will create new person object (for …

I am using poco library to send a email first I installed the libraries on my ubuntu sudo apt-get install libpoco-dev code using namespace Poco::Net; int main (int argc, char **argv) { try { MailMessage msg; msg.addRecipient (MailRecipient (MailRecipient::PRIMARY_RECIPIENT, "john@gmail.com", "John")); msg.setSender ("Anthony Smiths <anthonysmiths5456@gmail.com>"); msg.setSubject ("sending a email using …

I would like to search a file for whether certain words are present and extract the parts of the sentence that contain the words; I would like to find words that are a particular part of speech, and extract the part of the sentence from the word before the previously …

hello frnds i want c language tutorial

I want the text in a textbox "txtConvertedInches" to be selected when i press the radio button "rbFromInches". private: System::Void rbFromInches_CheckedChanged(System::Object^ sender, System::EventArgs^ e) { bConvertingToInches = !rbFromInches->Checked; ToggleControls(); txtConvertedInches->SelectAll(); //I thought this would do it, but nothing happens }

Friends...A small problem I have a combobox in which I want to add list from a field from a ACCESS databas Table.It works well My code is here ACRS.Open "SELECT * FROM Salary1", CN, adOpenStatic, adLockOptimistic Sfm = ACRS!Month Do Until ACRS.EOF CmbSfm.AddItem ACRS!Month ACRS.MoveNext Loop My problem is , …

Hi, ************************************************ [B]Below is my xml code[/B] [ICODE]<?xml version="1.0" encoding="UTF-8"?> <concept><title>TEST</title><body><title>CHECKING</title></body></concept>[/ICODE] ************************************************ [B]Below is my xslt code[/B] [ICODE]<?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0"> <xsl:template match="/"> <xsl:for-each select="concept"> <xsl:variable name="filename1"><xsl:value-of select="base-uri()" /></xsl:variable> <xsl:value-of select="$filename1" /> </xsl:for-each> </xsl:template> </xsl:stylesheet>[/ICODE] ************************************************ [B]Getting output[/B] D:\test\Checking.dita [B]Instead of this it should display only [/B] "Checking" …

how can one create dynamic textboxes from vb.net code it self ?

Heelloooo good day. Thanks for seeking to help. I am creating a Java program(obviously). At the end of my work I wish to install it as (a)an .exe file. However I wish that after its installation, file type association would have been setup automatically(I phrased that latter part of the …

Hi i have a problem in binding DateTimePicker value from one form named SearchDoctor to existing form named Doctor. Here is the code of my Doctor form and it works: using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using System.Data.Sql; …

I want to make an import export company desktop application. But i am getting problem in making the design of the application. can anyone please help me regarding this???

Hi Everyone, I really require your assistance on the issue. I was debugging my code [C# console application] and i step down to the place where there is DATASET in my code and i clicked on the magnifying glass to see the data inside the DATASET. after clicking on the …