50 Solved Topics
Remove Filter  | I'm trying to find an event that handles which tab is clicked? I know it has to be simple, I'm just missing it. I want to say "when tab1 is clicked, do this, when tab2 is clicked, do that"  |
| | When I debug this method, I can clearly see that currentNode = Workstation, so I am puzzled as to why I'm still entering into the "Node" buffer print, rather than the "Workstation" buffer print. Shouldn't polymorphism handle this for me?: part of Node Class [code=java] public void printToBufferAsHTML(Network network, StringBuffer … |
| | Is there a way in java to do something similar to this: [code=c++] class Rectangle { public: int x; string y; private: int a; string b; }[/code] Or do you always have to specify public/private for each property?  |
| | What happens if I have a method declaration of: [code=c++]int method( char * a, char * b, int * c );[/code] and then I pass in: [code=c++] char a; char b; int c; method(a, b, &c); [/code] This has me a little puzzled. What values will be passed by reference? |
| | Would it be possible to have negative reputation left by someone who has been banned or is still under "newbie" status or that may be a personal attack hidden? I sometimes post questions asking for help related to an issue at work - I hand out the threads to fellow … |
| | Hey guys, I'm getting this error: [quote]1>GoblinRecruit.obj : error LNK2019: unresolved external symbol "public: void __thiscall Mob::set_data(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,int,int,int,int,int,int,int,int,int)" (?set_data@Mob@@QAEXV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@HHHHHHHHH@Z) referenced in function "public: __thiscall GoblinRecruit::GoblinRecruit(void)" (??0GoblinRecruit@@QAE@XZ) [/quote] When I try to run this section of code: [code=c++] #include "Standard Libs.h" #include "Ability.h" class Mob { private: string … |
| | For whatever reason, I can't figure this out. I'm getting this error: [quote]error C2082: redefinition of formal parameter 'user' [/quote] In this code: [code=c++] #pragma once #include "Standard Libs.h" #include "Ability.h" #include "Spell.h" #include "Item.h" class Adventurer { private: string name; int level; int xp; int gold; int attack; int … |
| | Hey everyone, I have a warning message in my app saying "Unreachable code detected" - Here's a snippet: [code=c#] //Files are sometimes not closed quickly enough - these loop variables allow for the system to wait and try again const int MAX_TRIES = 3; int loop = 0; ... public … |
| | How can I specify which sheet I want to write to by name? For example, I want to specify that the sheet I should be modifying should be labeled "212". Also, perhaps a more challenging question. How can I ensure that the sheets I create are always in alphabetical order? … |
| | Hey everyone, Does anyone know how to specify which sheet you're going to be modifying in an exel worksheet? For example, if I have an Excel file that has 5 sheets, and I want to modify (4,7) on sheet 3, how would I do that? Here's what I have so …  |
| | Hey everyone, I have a label that gets data from a database and uses that as the .Text field. I want to compare this .Text field with an integer value, but I can't convert the text. The value I'm trying to convert to integer is "25,000". Here's what I've tried: …  |
| | Hey everyone, I'm not sure where I should be posting this - if a mod finds a more appropriate form, feel free to move it. I'm trying to figure out how to not only require .Net 4.0 with my installation package, but in the case 4.0 isn't installed already have … |
| | What am I missing here: [code=c#]if (textBox_End_Miles.Text != "" && Convert.ToInt32(textBox_End_Miles.Text) > Convert.ToInt32(label_Start_Miles1.Text))[/code] I keep getting a runtime error any time I modify the textbox. |
| | Hey Everyone, I'm trying to have a form autosize when a user clicks on a Link Label. When the Link Label is clicked, I want the form to expand slightly, and show a tab control that I've created. I can't figure out how to use the this.autosize feature correctly for … |
| | Hey guys, Is there any way to call the click event of a linklabel? E.g., I have a form that should call linkLabel_refresh_LinkClicked when it closes. Is that possible? Thanks |
| | Hey guys, I have a splash screen I'm loading here: [code=c#] private void main_Form_Load(object sender, EventArgs e) { //Load Splash Screen this.Hide(); Form_Splash form_Splash = new Form_Splash(); form_Splash.Owner = this; form_Splash.Show(); System.Threading.Thread.Sleep(3000); form_Splash.progressBar_splash.Value = 10; form_Splash.label_Process.Text = "Checking Authentication..."; System.Threading.Thread.Sleep(2000); // Create the context for the principal object. PrincipalContext ctx … |
| | Hey Guys, I'm connecting to an SQL server and updating some fields. This works: [code=c#]cmd = new SqlCommand("UPDATE Laptops SET Checkout_Date = '" + form_CheckOut.checkout + "' WHERE name='pen-laptop1'", conn); cmd.ExecuteNonQuery(); [/code] But this one doesn't: [code=c#] cmd = new SqlCommand("UPDATE Laptops SET " + " isCheckedOut = 0" + … |
| | Hey Guys, I'm creating an application that will require specific privileges. Users will eventually be add/removed from this group; I was wondering if there's a way I can tie in an Active Directory group to the software? Something that would let me say "if you're part of this group you … |
| | Hey guys, I'm trying to run this code [code=c++] // Copyright (C) 2001-2003 // William E. Kempf // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) #include <boost/thread/thread.hpp> #include <iostream> void helloworld() { std::cout << "Hello World!" << std::endl; } … |
| | Hey guys, When I create a file on the server and i login with an account called engineer and try to delete the file it says access denied make sure it's not in use or is write protected. I have the ntfs permissions set. I tried with administrator account and … |
| | Hey everyone, I'm trying to work with Sets. I have a function [I]Union[/I] that takes a class type [I]Set[/I] as it's parameter. The function returns the union of class A and B. Here is my code: [code=c++]Set Set::Union(Set setB) { Set result (maxItems); for (int i = 0 ; i … |
| | Hey guys, Can anyone tell me why this doesn't work in VS2008? I've commented out the #includes and whatnot so you can paste it into a single .cpp file and run it. Here are my errors: [quote]1>test.obj : error LNK2028: unresolved token (0A000320) "int __cdecl eval(class Tree<struct InfoNode> &)" (?eval@@$$FYAHAAV?$Tree@UInfoNode@@@@@Z) … |
| | Probably a bit of an advanced question... How hard is it to allow for multi threading support with C#? For example, we have a motherboard that has the capability for two processors with four cores each (dual xeon quad cores). We want to dedicate one processor (or core) to calculating … |
| | Hey everyone, is this the most efficient way to round a decimal number to two decimal places? [code] txtXaxis.Text = String.Format("{0:F2}", A); //show 2 decimal places txtYaxis.Text = String.Format("{0:F2}", V); //show 2 decimal places[/code] thanks! |
| | Hey everyone, I'm completely new to C# so I'm sorry if I don't make sense. I need to capture the x and y position of the mouse cursor within a group box (or some other frame). How can I do that?  |
| | Hey everyone... could someone tell me why this isn't working? I get "The specified path could not be found." when I run it. [code]@echo off REM########################################################################### REM Author: Caleb REM Date: 11-14-2007 REM Contact: - REM Description: This .bat file is to copy necessary .cui, .mnl, and .mnr files from … |
| | Hey guys, Here's my code: [code=c++]#include <iostream> using namespace std ; template<class T> class Pair { public: Pair ( ) ; Pair (T v1 , T v2 ) ; void setFirst(T newV ) ; void setSecond(T newV ) ; T getFirst() const ; T getSecond() const ; private: T first … |
| | Could someone explain the difference between Overloading, Redefining, and Overriding functions? A nutshell answer will work fine; I just need something to stick in my brain for tomorrow's test. I know the concepts behind these tools, but I just need a simple way of defining the difference between them. |
| | I have a class called Person. I also have a class called Truck, inherited from class Vehicle. I want to overload the iostream operators for all three classes so that I can do statements such as: Person a ; Vehicle b ; Truck c ; cin >> a ; cin … |
| | I'm getting an error in main() saying TitledEmployee is an undeclared identifier? [code=c++]#include <iostream> #include <string> using namespace std ; namespace Employees { class Employee { public: Employee ( ) ; Employee ( string theName , string theSsn ) ; string getName ( ) const ; string getSsn ( ) … |
| | Hey guys, I'm supposed to write a program that will calculate the Nth fibonacci number, without using recursion. I have the recursion problem written already, but am having a hard time doing the iterative one. here's my recursion function: [code]int fib ( int n ) { if ( n <= … |
| | Hey guys, we were given an opportunity for extra credit in my OOP class. We're going over recursion and my prof said if we could do a project using recursion and do another useing iterative statments, and time them, we would be given extra cred. Is there a way to … |
| | I get error C2143: syntax error : missing ';' before '*'[/code] at the typedef line (and every other line with the word 'string'). ... //File: prob4.h #pragma once //header files + efficiency #include <string> #include <iostream> using std::cin ; using std::cout ; using std::endl ; typedef string * strPtr ; … |
| | here's my printing code: [code] Private Sub PrintDocument1_PrintPage(ByVal sender As System.Object, ByVal e As System.Drawing.Printing.PrintPageEventArgs) Handles PrintDocument1.PrintPage Dim printlinestring As String Dim horizontalPrintLocationSingle As Single Dim verticalPrintLocationSingle As Single Dim printfont As New Font("arial", 12) Dim lineheightsingle As Single = printfont.GetHeight horizontalPrintLocationSingle = e.MarginBounds.Left verticalPrintLocationSingle = e.MarginBounds.Top PrintPreviewDialog1.Document = PrintDocument1 … |
| | I'm trying to get totCust and totRev which are declard in videoBonanzaForm to show up in the summaryForm.textboxes I have them declared as friends; i've even tried assigning `me.textbox.text = "1"` and nothing shows up still when I click the Summary button (in videoBonanzaForm). I open the summary form with … |
| | Hey everyone. I need to write program that builds an object of Pizza class and then pass that object to Order class. here's my Pizza class: [code]class Pizza { public: void setCheeseToppings ( int ) ; void setPepperoniToppings ( int ) ; void setSize ( string ) ; void setType … |
| | Hey guys, I keep getting a link error in my code. It says this: [code]1>prob4.main.obj : error LNK2005: "private: static int HotDogStand::totalSales" (?totalSales@HotDogStand@@0HA) already defined in prob4.func.obj[/code] Here's my code, maybe someone can help me out. [code]#pragma once #include <iostream> using namespace std ; class HotDogStand { public: HotDogStand ( … |
| | We're discussing constructors. My problem is this: Define a class called Month that is an ADT for a month with one variable as int to represent a month. Include all of the following member functions: a constructor to set the month using the first three letters in the name of … |
| | ok so i'm new to vb. what is wrong with this code at line 28: Public Class Form1 Const DISCOUNT_RATE As Double = 0.1 Const RENTAL_RATE As Double = 1.8 Dim totSales As Integer Dim totIncome As Double Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load …  |
| | My prof is touching on information hiding, and good programming techniques. He said it's a good idea to keep as much of the user interface (i.e., couts) in main, and then modify object variables through the use of functions. Here's what I want to do: I'm starting on a program …  |
| | Hey guys, Just got started on this, and I keep getting an error saying Missing ";" before "." starting at line 25 and pretty much on all of my functino calls in main. Anyone know what I'm doing wrong? Here's my code: //driver - main #include "prob6.h" int main ( … |
| | Hey guys, I'm trying to find a couple magazines I could subscribe to in order to help me stay on top of new technology. Anyone have a suggestion? I would really love something networking focused; I checked Cisco and it looks like they've discontinued all hard-copy materials. thanks :D |
| | Hey everyone, this is a big one. The question has asked that I define functions and then write the function main to test the functions I wrote. I keep getting the following error at my first cout in main: error C2679: binary '<<' : no operator found which takes a … |
| | Hey all, I'm doing hw, and I did a desk-check for this program and got completely different answers than that of the computer when the program was put into the compiler. The question says to consider the function `defaultParam` void defaultParam ( int u , int v = 5 , … |
| | Hey guys, I'm stuck again. The program is supposed to get the estimated population after n years using the equation P + (B*P/100)-(D*P/100) and the growth rate using B-D. Here is what I have so far, but I can see I'm going to be getting stuck. How can I set … |
| | Hey everyone, we're going over functions now and I am supposed to write a program that counts the number of vowels in string of characters. I'm not sure what I'm doing wrong... could someone help? #include <iostream> using namespace std ; int isVowel ( string ) ; int main() { … |
| | hey everyone, I am including my code and was wondering if there is a prefered way to document? I have comments which describe what does what, but I'm wondering if there is a neater and/or more efficient way to do it... /***************************************************** * COSC 230 - Structured Programming * Chapter … |
| | Hey everyone, I'm not trying to complain at all... I love this forum... I come here at least 5 times a day. I was just wondering if the new feature (not sure how new it is) with the key words, popping up ads when the cursor is hovered over them …  |
| | Hey guys, I need help again :sad:. I'm doing really well in the class, it just seems like these past couple assignments have been really rushed (i.e., we went over chapter 5 the day after I finished reading chapter 4 =/). I'm getting sort of discouraged, because up to now … |
| | Gosh today has been horrible.... I'm getting ready to leave work and here's what happened: I was backing up my supervisor's Outlook data and after that finished the laptop became very slow. I tried to open AutoCad to determine if our licenses were still working because I had ran into … |
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