Software Development Forum

Hi all, Im developing a small app that stores information in a database. When I first released, I tried to make sure my DB was future-proofed against any changes. However i'm about to release a new version that requires a change to the DB schema. Currently my terrible way of …

Hi group, I'm discovering that my Excel spreadsheets that are being created by a VB.net app I've written isn't completely closing them as they should be. I'm struggling to understand why and how to fix this. Here is the code for the portion of the app that creates the workbook, …

In below code snippet , I am trying to add the intefeger and float values in Array template but was surprised to see below output for float value as 5.1 was expected there but getting 0 . Can anybody let me know what can be wrong here. output value=5 value=15 …

Hi group, I'm making a handful of changes to an existing program I wrote a year or so ago. For some reason I can't get it to build as I'm getting an error that says: 1> Copying file from "obj\x86\Debug\Restran Solutions.exe" to "bin\Debug\app.publish\Restran Solutions.exe". 1>C:\Program Files (x86)\MSBuild\14.0\bin\Microsoft.Common.CurrentVersion.targets(3506,5): error MSB3113: Could …

This thread will be an attempt to develope a SIMPLE (and good enough) class for beginning Java students, to ease their coding for valid and crash proof, user (Console type) input, (and also handle Console output.) We assume here that beginning students need not worry much, about obtaining the fastest …

Alright. I'm teaching myself python from 'Learn Python the Hard Way: 3rd Edition' by Zed Shaw.. it's been informative so far. Definitely learning. After his lessons, he gives study drills, extra project to put your learning to use. He challenged us to: "Find out what Zork and Adventure were. Try …

I am writing a game in which I need to know whether or not a user preforms an action in one second or less. I can not use time() because it measures time in seconds. If the user starts the action half-way through a second it would mess with accuracy. …

Dear All, I have a very long list of values as follow (43, 560) (516, 1533) (1316, 3047) (520, 1528) (3563, 1316) (45, 557) (3562, 1312) (2686, 1964) (2424, 3340) (3559, 1317) (50, 561) (2427, 3336) (1313, 3046) (3562, 1313) (3559, 1318) (2689, 1962) (2429, 3339) (3721, 2585) (1317, 3048) …

I have generated checkbutton from inputstatus dictionary to set as default values.After tht once it get display on GUI when i select it respected text and status will be added to new dictionary '''inputstatus = { 'maggi': 1, \ 'pizza': 1, \ 'cold drinks': 1, \ 'fries': 1, \ 'chapati': …

Hello , I have this: #include <iostream> #include <cstdio> #include <cstdlib> #include <vector> using namespace std; typedef struct { float x; float y; Point *next; } Point; int main() { Point *thePoints = new Point[2]; thePoints[0].x = 2; thePoints[0].y = 3; thePoints[1].x = 4; thePoints[1].y = 5; (thePoints[0])->next= 11; cout …

Hello DaniWeb Community, I'm a beginner Java programmer. The LoanTableTester contains the main method and the LoanTable is a class separate from the LoanTableTester class. May I please have help with a cannot find symbol - variable mortgage error? I wrote the methods for calculating the c, monthly payments, number …

from Tkinter import * from ttk import Style class Example(Frame): def __init__(self, parent): Frame.__init__(self, parent, background="#333") self.parent = parent self.parent.title("sample") self.parent.iconbitmap('sample.ico') self.pack(fill=BOTH, expand=1) self.centerWindow() self.initUI() def centerWindow(self): w = 500 h = 450 sw = self.parent.winfo_screenwidth() sh = self.parent.winfo_screenheight() x = (sw - w)/2 y = (sh - h)/2 self.parent.geometry('%dx%d+%d+%d' …

I had question about vb.net. I know normally this is simple. But in this case it's dificult. Let me explain this. I had three forms. Form1 is mdi parent form. Others 2 parent forms are child forms which named form2 and form3. I want to send form3 text box value …

Hello, I'm totally new to programming and wanted to make a text-based game based on what I know, but I've met a problem I don't know how to fix. Also this code is not finished, I'm just trying to get it to work first. Basically, I want the loop to …

I find answer for this question from internet and also here. Some got some help from here. But it doesn't worked 100% fo my situation. So let me describe all things detailed. This is about three forms. To our easy understand I'll named those Form1,Form2,Form3. Only Form1 is MDI parent. …

im having a bit of trouble using the object i add to my arraylist. i used this as my reference: [url]http://www.java2s.com/Tutorial/CSharp/0220__Data-Structure/ArrayListandyourownobjectAddobjectstoArrayList.htm[/url] [CODE] import java.util.ArrayList; public class TestArrayList { public static void main(String[] args) { Object item1 = new ObjectMaker(); Object item2 = new ObjectMaker(); Object item3 = new ObjectMaker(); ArrayList<Object> …

hey everyone. I need you experties help to the correct this login form code. After the best effort I find this code. But it occur one error. Before the explain error I'll describe how this work. This login form check user name and password from the mysql database. After Normaliy …

I made a client server program to send an image from the server to the client. The image is being sent being but its not showing up in client window immediately. If i click send on the server then i minimize (or maximize) the client window then open again the …

I've always been bad with regular expressions syntax. I am converting text into Bezier curves, polygons, etc. Part of that is identifying points in the form `(x,y)` where x and y are coordinates in a graph. I am extracting x and y as doubles and creating Point objects with those …

I have a `List<double> MyList` something looking like this: 4.75/1.01/5.66/NaN/42.42/3.33 I’d like to get the minimum value of 1.01 out of it, but I get d = NaN when doing `double d = MyList.Min();` Tried, after some long internet strolls, something with LINQ to no avail. Some LINQ afictionados around …

Please , help me. I could not find crystal report view control in my toolbox. I am using visual basic 2010. I don't know if I need to add something. Thanks

Okay, I'm trying to make a python game (not with pygame), I want it to use the arrow keys. But the thing is, I don't know how to get it to respond to the arrow keys. So here's what I want to do. If the user presses the up arrow …

Hi Im trying to Populate my datagridview from data scraped off of webpage i Want to be able to report progress when datagrid finished updating.. with a progressbar.. Please Help!!!!!! Thank You.. Heres My code Dim theElementCollection As Windows.Forms.HtmlElementCollection theElementCollection = Form1.WebBrowser2.Document.GetElementsByTagName("a") For Each curElement As HtmlElement In theElementCollection Form1.DataGridView1.Rows.Add(curElement.GetAttribute("title"), …

Hi guys. Well according to the research I had, and MP3 file structure is as follows: ` AAAAAAAA AAABBCCD EEEEFFGH IIJJKLMM ` which is refered to as frames, and each. Each letter is one bit. I've seen samples demonstrating how to get data from this but what I want is …

Hi, I have a project which runs on 'dual monitor' PC's. I only want to use one monitor at a time, but I want the user to pick which monitor they want to use (Primary or Secondary). I have set form1 to have a manual start position, and the user …

Q.Write a program using 2D array. A company manufactures three products P1, P2 and P3. Company has hired five salesman. Each salesman sell all three products. Accept from user number of each product sold by each salesman. Find the product whose sale was largest.Also find the salesman whose sales were …

How to read properties file in Python? I found ConfigParser() but it has a 'section' limitation, so looking for other alternatives. Thanks, Harsh

Hi guys after fixing my previous bug this one has resulted. What I am trying to do: 1. Make getchar() read only one character per input 2. Make the while loop not accept numbers 3. When the user enters duplicate characters the program should only accept the first character. code: …

Why wont the if look for both Peter and John? #include <iostream> #include <string> using namespace std; int main() { string Name, Mood; // obvious string cout << "Whats your name?" << endl; cin >> Name; if (Name == "Peter"|| "John") { cout << "Hello, master! How are we feeling …

Hi guys I am looking to go through C then transition to C++ later this year. I am having a minor problem with switch statement and I am not in a position to ask anyone as there are no tech savvy that I know. So I thought it was better …

I'm trying to write a basic program for a C++ lab for class, and running into some trouble. Senario is that the program averages grades. A user enters the number of grades, then enteres a letter grade, then the program runs for however many grades the user has, then averages …

Hi all I'm new using LinQ. Im having Specified Cast not Valid in this Function. Hope someone let me know what I'm doing wrong. this is the Function Private Function GroupedBy() As DataTable Dim Sales As New ds_Sales_OELI Dim dt As DataTable = Sales.Not_SCheduled GroupedBy = New DataTable Dim dr …

how to loop the auto calculation in data grid view column example : 14 32 32 64 11 75 15 90 the calculation is 32 + 32 = 64 64 +11 =75 ok.. now the problem is what if i edit the first column number 32 to 30 and the …

Hi all, I have been trying to use python to automate a sequence of processes on my computer, one of which is starting a hosted network. I have used subprocess to interact with command prompt (windows 10), and am struggling to pass sequential commands. I am trying to first send …

I am trying to have a textbox set up where multple texboxes are used in teh layout of a table, each one as a seperate box in. (I havn't got the exact size figured out yet but for the sake of testing i've been usieng a layout of 2 rows …

Hi all. I've had a good look around for info, and come up short. Does anyone know of a way to get the thread id under which a service is running, from either safehandle or unsafe handle properties of the object? wmi with Win32_Service does not appear to provide it, …

Hi all, I trying to add two matrices together using a typedef struct, but i seems to get an error doing this. I asked my professor, but he couldnt help me. Is there anyone who might know why this problem is caused? Thank you so much! Code: /* Structures */ …

Is there any way possible to display a slideshow of pictures on a vb 6 form? What steps are required? Thankyou

Hi Guys. First of all is it possible to detect a file copying/moving within the system, I'm sure this is done in lower languages like C++ but I've tried searching but I don't seem to find not even en example, maybe it because I don't know how it correctly called. …

Hi Guys. I'm trying to suspend a process by it name, but I found the sample that demontrate this using ProcessId. The problem is that I don't know the process ID of the process I want to suspend/resume. [Here is a sample I used.](https://social.msdn.microsoft.com/Forums/en-US/cdde6cef-3971-40a6-b4dd-02db963868ce/suspend-an-application?forum=vbgeneral)

Hi. I invoke method from other thread which did not create ui. Appears to work well... DVG.Invoke((MethodInvoker)(() => dgv.Rows.Add(DGVR))); But I need return value from Add method, so I do... int Index = (int)DVG.Invoke((MethodInvoker)(() => dgv.Rows.Add(DGVR))); Unfortunately I get an error... "Object reference not set to an instance of an …

Hi,my name is yawar i am a student learning c#.I have combobox,when i select an item in combobox there comes data which i want to display on labels,but my problem is there comes many data,i want to display only 3 labels when only 3 data rows comes from database and …

Can someone give me some programming ideas to keep my knowledge up-to-date? I received a masters degree in computer science back in December and been job searching since then. I want to tell an employer something.

Hey i have a basic game which requires a client to guess the number which is located on the server side, mutliple clients can access the same game. The client sends their guess this in turn passes to a middleware server then this then goes to the end server. If …

Hi, I'm thinking to upgrade from java sdk 7 to 8 (JamesCherrill will be pleased,lol!) and I was just wondering if there is anything I need to be careful with, especially in eclipse. I will start first with Windows, and then do the same thing in Ubuntu. My eclipse seems …

I want to create a program to delete a partition using VB.NET or CSharp.NET But I have no idea how to do it. I know a big portion of VB.NET now and not this. I can´t find it on the whole internet and this website is my best bet.

Hi, I'm new to this Java world, and just can't figure out this problem. After I use nextInt or nextDouble, and try to use nextLine, it won't work unless I put nextLine twice. What's the problem there, and what would be the good way to handle this? Just gave a …

Hi: I wasn't able to find the exact solution to my problem on Daniweb, although there are several posts regarding the game of life. This situation came the closest: http://www.daniweb.com/software-development/cpp/threads/242338 My situation is a bit different because I HAVE to use a combination of functions and a class in the …

Here is example class, the commented code in constructor works as well as the initializer. My question is, what is the correct way? class NClass { public: int _pid; std::wstring _name; NClass(int pid, wchar_t * name) : _name(name) { //_name = name; } void Print() { std::wcout << _name; std::getchar(); …

I need help inserting the assert function within my code, and creating the neighborcount function as listed below, heres the guidelines: default constructor: initialize all of the array elements to false get: return the current contents of a single array element. Use arguments to indicate the row and column of …