Software Development Forum

Hello, I'm very new to C#. Basically, this is an existing windows form application, I'm supposed to add a checkbox in two existing forms. The forms have other comboxes and and textboxes. There's a restricted folder for many departments.So, when i fill up the other fields and check this check …

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data = open('sketch.txt') for each_line in data: try: (role, line_spoken) = each_line.split(':', 1) print(role, end='') print(' said: ', end='') print(line_spoken, end='') except: pass data.close() I'M gettin the following error when I run this code but it looks exactly like what I'M seeing in my Head First book. File "sketch.py", line …

I have a small Python program that should react to pushing the up button by running an appropriate method. But instead of doing this, it gives me a confusing error... from tkinter import * class App: def __init__(self, master): self.left = 0 self.right = 0 widget = Label(master, text='Hello bind …

hey guys reading deitel book and have a little problem with the code that I cant understand #include <iostream> using std::cout; using std::endl; #include <iomanip> using std::setw; int main() { // define array sizes const int responseSize = 40; // size of array responses const int frequencySize = 11; // …

I have Table of Contents working fine. I can't get a Table Of Figures to work, however. I have tried setting the Caption property, but I still get "No Tables of Figures Entries Found". Anybody, HELP! Thanks.

Does anyone know tutorials for link list to be able insert,delete,cout list,give id and time void list_insert( UINT time, UINT id, UINT event) { } void list_head_delete() { } UINT list_head_event() { work_ptr = list_head; if(work_ptr == NULL) { return 0; } else{ printf("Should print the list head \n"); return …

How can i specifically setfocus a textbox column in datagridview?

I have a textbox has a maxlength of 18, e.g Textbox=ABC123456789012345 i want that the first 3 input must be letters only.

Hi all, I wrote an application for our poker games. It works great as a timer and stores our points. My problem is that I want to sort the points in order and redisplay along with peoples names, total tournament games, total games. Here is a snippet of how I …

Hey, so i'm having some problems with my message passing code. Ultimately, what i'm trying to do is use the msgget/snd/rcv commands to send the pid of the parent to the child, and visa versa. However, i'm getting an invalid argument error fr my msgsnd in the child process. My …

I've been strugglin with this all day. I'm trying to use python to walk through a registry key and delete all the values it finds. I've succeeded in getting it to find all the nested values, but as soon as I try to delete one, I'm met with "WindowsError: [Error …

What I'm trying to do is take a source file and only pull specific lines out and display those lines to a label/textbox/etc. What's happening is I am able to pull the first line, however my loop is terminating and I do not receive the rest of the results. Here …

Ok, this is a little hard to explain, i basically am making a miniature operating system and there is a notepad feature. I am allowing a save in this operating system. I have a hidden button on the mainscreen than shows itself when the save is clicked on the notepad …

I want to be able to make a program that emulates what a human at a computer can do. IE: I want to be able to read the visual information of a window (a 2d array of colour would be perfect) and be able to send virtual key syms and …

All, I am working on my first forms app (using NetBeans). I don't like to mix GUI code with app code, so I have my main class, GUI class and core code class nicely seperated. When the user clicks a button on the GUI form it calls a method in …

How do I code if I am coding what will happen if I press a button. and then ask a question and want to wait until either of two others buttons are pressed like an yes or no question say i code something and to continue i need the answer …

I am getting results from a routine which are unexpected from me. here is athe code. void MyTestFunc(){ u_char MyTest_u_char[10] = {'a','b','c','d','e','f','g','h','i','j'}; u_char * MyTest_u_char2 = new u_char[8]; memcpy(MyTest_u_char2,&MyTest_u_char[1],sizeof(u_char)*8); int raw_len = sizeof(MyTest_u_char2) + 1; string std_str(MyTest_u_char2, MyTest_u_char2 + raw_len); cout << std_str << endl; // expecting bcdefghi . getting …

I have two settings classes one abstract base class from which the second settings class derives public abstract class BaseFooSettings { public int a; public int b; public float c; } public class DerivedBarSettings : BaseFooSettings { public float d; } I then have two classes one base class and …

*CardsNumber = myObject.HandleString(Cards);* if i have a method like this all i want is CardsNumber to change not Cards *myObject.HandleString(**Cards**);* change too i need it to be the same? why does it change? if i specify ***CardsNumber =** myObject.HandleString(Cards);* should'nt that only change? i hope you understand what i mean …

Ive just started going through and developing basic applications using the win32 API, and couple of times I have come across people mentioning that directly using win32 is not wise...I've just started using the library and personally think its nice and easy to use. However Ive been seeing things like …

hey just wondering if you can make an method that you input a string and convert it in the method and return a int? something like public string[] ConvertString(string[] Cards) { int[] intCards = new int[52]; for (int a = 0; a <= 51; a++) { int.TryParse(Cards[a], out intCards[a]); } …

Hi All, I have a list of hex values that originated from a text string that was downloaded having now created a list of thes values approx 804 of them, when i run the list items through a loop to conert hex into dec had an error looking at this …

Hi Guys - newbie here.. I have been working with OLEDB connection for the past few weeks and now have this connection in ADO and i'm not sure how to proceed. **The Connection information is the following:** private ADODB.Connection adoConn = new ADODB.Connection(); private ADODB.Recordset adoRS = new ADODB.Recordset(); and …

Is it mandatory to handle an exception that is thrown using the `throw` keyword? If so is there a separate rule for Checked and Unchecked Exception, as in who should be mandatorily caught? public void met() { throw new ArithmeticException

Hello, I need to write a function that would take a string and break it up into tokens (ie words, numbers, and punctuation). First it needs to break up the string and store them into an array called Token[]. Obviously a for loop needs to written however should I just …

HI , everyone can you please write a program for me , I have a set with 5 things in it thats line a={1,2,3,4,5} but it could be everything possible and there are subsets like b={1} c{1,2} d{1,2,4,5} but I cant write the progam so if you can write a …

how can i trap my textbox that allows numbers and letters only, no space no special characters e.g (,./;'[]-=\`<>?:"{}_+|~!@#$%^&*())

Hey! So i have started learning c, quite refreshing when i normally code in Java :) I have this task where i need to store three int values in an unsinged int via bitwise operators. Its for a RGB picture where the colour is limited to 256. I have done …

Can someone please tell me how to control a windows form from another form? I have one form (form2) which has a button. When this button is clicked, I need my other form (Form1) to hide a button. I know all the code except for how to make form2 access …

Recently bought "Regular Expressions Cookbook 2nd ed." and wanted to share my findings. The book is divided into two parts. The first part (3 chapters) describes tools, skills and programming. The tools chapter shows you what's out there (including his own software). The skills chapter is a tutorial. It describes …

Hey so for a couple of months now Ive been facinated with c++ and have been going through various tutorials and examples of creating console based applications dealing with arrays,pointers, classes, etc.So I really want to get into the GUI side of it. But from word of mouth I hear …

Hi I just completed my database hospital application and now i'm ready to export it into a JAR file. I palced the DB in the classes subfolder and played with ClassLoader but got nothing! I used the following code String driver = "sun.jdbc.odbc.JdbcOdbcDriver"; String url="jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=f:hospitalDb.mdb;}"; any idea …

int wordpercent = ((count/totalwords)*100); JOptionPane.showMessageDialog(null, "Count: " + count); JOptionPane.showMessageDialog(null, "Words: " + totalwords); JOptionPane.showMessageDialog(null, "Character Count: " + length); JOptionPane.showMessageDialog(null, previousletter); JOptionPane.showMessageDialog(null, nextletter ); JOptionPane.showMessageDialog(null, "Your word makes up " + wordpercent + "% of the document"); This is the final part of my program code. The program lets …

#include<stdio.h> #include<conio.h> void main() { float a[5][5],x[3];float t,s; int i,j,k; printf("enter a matrix of order 3*4"); for(i=0;i<3;i++) { for(j=0;j<4;j++) { scanf("%f",&a[i][j]); } } for(i=0;i<3;i++) { for(j=0;j<4;j++) printf("%f ",a[i][j]); printf("\n"); } for(i=0;i<=1;i++) { for(j=i+1;j<=2;j++) { t=a[j][i]/a[i][i]; for(k=i;k<=3;k++) a[j][k]=a[j][k]-t*a[i][k]; } } printf("The upper triangular matrix is as\n"); for(i=0;i<3;i++) { for(j=0;j<4;j++) printf(" %f",a[i][j]); …

using System.Text; namespace ConsoleApplication2 { class Program { static void Main(string[] args) { Cassandra myObject = new Cassandra(); string a ="söt"; myObject.hejsan(a); System.Console.WriteLine(a); Console.ReadLine(); } } class Cassandra { public string hejsan(string value) { value +="Cassnadra"; return value; } } } how come this wont work? all i get is …

hey i want to return my whole string array but the program wants me to specify one public string CreateCards( string[] Cards) { Cards = new string[52]; for (int a = 0; a <= 51; a++) { if (a <= 12) { Cards[a] = " Hjärter " + (a+1).ToString(); } …

Hi There, I need to re-write any mention of .tellg() in my code as the function is not supported on the desired hardware. I have the following lines of code: getline(file,line); { std::istringstream stream(line); stream >> first >> second >> third >> forth; UINT32 file_pos = stream.tellg(); file_pos++; fifth = …

I'm learning several languages. 5 at once but I took a liking to one specific feature of java. The This keyword. From their tutorial: /*Within an instance method or a constructor, this is a reference to the current object — the object whose method or constructor is being called. You …

Hello, I want to implement Change Listener in the Action Listener of a Button I have a color graph chooser and 2 buttons...Apply and Cancel to select the color of the color chooser i have implemented the Change Listener but I want the change listener to act on the Apply …

This is what I want to do; I would like to generate some files (csv) with VB. For example for my fantasy sports teams I keep track of the teams stats, lineups and standings. All 3 for 24 weeks. So if I could generate (CSV) files such as filename-homers_lineup_wk_1 (CSV). …

int [] ia1 = {1,2,3}; int [][] ia2; Object o = ia1; ia2 = new int [3][3]; ia2[0] = (int[])o; ia2[0][0] = (int[])o; Answer is "Compilation fails in last line" Explanation: Arrays are objects, and that each array dimension is a separate type. So, for instance, ia2 is of type …

"SqlDbType.Time overflow. Value '3.00:00:00' is out of range. Must be between 00:00:00.0000000 and 23:59:59.9999999." Does anyone know what is the problem.

Hi.I have written this code which capitalizes 1st character of each word in the string.All other letters of the word has to be in small letter.But i am not getting desired output.Plz tell me where i am going wrong.. #include<stdio.h> int main(void) { char string[]="hI i aM sOujanYa"; char string2[20]=""; …

hey i have a question how do i get my funktion to work in the design.cs? namespace Visma_projekt { public class BlackJack { public string[] Cards = new string[51]; public void SkapaKort() { System.Console.WriteLine("Ehhhh"); } } } i want to call the funktion from this code visma.cs into the form1 …

I'm trying to understand something. Best explained through an example. My understanding is that a Class Adapter (lets say written in C++) is for a class written in PHP (hypothetical). C++ - Class A - Adapter PHP - Class B - Adabtee. If I'm trying to access Class B through …

Okay, I want to start off saying that yes this is a homework assignment but no I don't just want the answer for it. I actually want to learn how to work this. Having said that, I was assigned to determine whether a number is a perfect number and print …

I am tring to call the same subroutine several times. The first time it runs it works correctly. Everytime after the first time it doesn't run the subroutine in order. I was wondering if anyone knows how to do this. Here is my current script. @echo off set description=Disabled %date:~4,2%-%date:~7,2%-%date:~10,4% …

I hate to ask, but I need some help with code. I don't have any because I don't know where to begin. Here's what I'm after. I have a Sql CE database attached to the app, and a table called DUI_Cite_Numbers. There is two columns, DUI_Cite_Start and DUI_Cite_End. I need …

Is there a way to do the following better? Current I write a set of pixels to a file called "PngFile.bmp". Then I read that file back in as a PNG encoded buffer.. Then I save that buffer back to the harddisk and delete "PngFile.bmp" /*std::fstream PngFile(TempPath, std::fstream::out | std::fstream::app …